Imported Translations from Zanata

For more information about this automatic import see:
https://docs.openstack.org/i18n/latest/reviewing-translation-import.html

Change-Id: Ie708859051162cc7a68cfdf289398f6df1abe6c8

.gitreview

@@ -2,3 +2,4 @@
 host=review.opendev.org
 port=29418
 project=openstack/watcher.git
+defaultbranch=stable/ussuri

.zuul.yaml

@@ -1,9 +1,9 @@
 - project:
-    queue: watcher
     templates:
       - check-requirements
       - openstack-cover-jobs
-      - openstack-python3-jobs
+      - openstack-lower-constraints-jobs
+      - openstack-python3-ussuri-jobs
       - publish-openstack-docs-pti
       - release-notes-jobs-python3
     check:
@@ -13,8 +13,10 @@
         - watcher-tempest-strategies
         - watcher-tempest-actuator
         - watcherclient-tempest-functional
+        - watcher-tls-test
         - watcher-tempest-functional-ipv6-only
     gate:
+      queue: watcher
       jobs:
         - watcher-tempest-functional
         - watcher-tempest-functional-ipv6-only
@@ -86,10 +88,21 @@
       tempest_concurrency: 1
       tempest_test_regex: watcher_tempest_plugin.tests.scenario.test_execute_strategies
 
+- job:
+    name: watcher-tls-test
+    parent: watcher-tempest-multinode
+    group-vars:
+      subnode:
+          devstack_services:
+            tls-proxy: true
+    vars:
+      devstack_services:
+        tls-proxy: true
+
 - job:
     name: watcher-tempest-multinode
     parent: watcher-tempest-functional
-    nodeset: openstack-two-node-focal
+    nodeset: openstack-two-node-bionic
     roles:
       - zuul: openstack/tempest
     group-vars:
@@ -107,6 +120,8 @@
           watcher-api: false
           watcher-decision-engine: true
           watcher-applier: false
+          # We need to add TLS support for watcher plugin
+          tls-proxy: false
           ceilometer: false
           ceilometer-acompute: false
           ceilometer-acentral: false
@@ -145,6 +160,7 @@
     timeout: 7200
     required-projects: &base_required_projects
       - openstack/ceilometer
+      - openstack/devstack-gate
       - openstack/python-openstackclient
       - openstack/python-watcherclient
       - openstack/watcher
@@ -154,6 +170,7 @@
       devstack_plugins:
         watcher: https://opendev.org/openstack/watcher
       devstack_services:
+        tls-proxy: false
         watcher-api: true
         watcher-decision-engine: true
         watcher-applier: true
@@ -162,10 +179,14 @@
         s-container: false
         s-object: false
         s-proxy: false
-      tempest_plugins:
+      devstack_localrc:
-        - watcher-tempest-plugin
+        TEMPEST_PLUGINS: /opt/stack/watcher-tempest-plugin
+        USE_PYTHON3: true
       tempest_test_regex: watcher_tempest_plugin.tests.api
       tox_envlist: all
+      tox_environment:
+        # Do we really need to set this? It's cargo culted
+        PYTHONUNBUFFERED: 'true'
       zuul_copy_output:
         /etc/hosts: logs
 
@@ -179,12 +200,10 @@
 
 - job:
     name: watcher-grenade
-    parent: grenade
+    parent: legacy-dsvm-base
-    required-projects:
+    timeout: 10800
-      - openstack/watcher
+    run: playbooks/legacy/grenade-devstack-watcher/run.yaml
-      - openstack/python-watcherclient
+    post-run: playbooks/legacy/grenade-devstack-watcher/post.yaml
-      - openstack/watcher-tempest-plugin
-    vars: *base_vars
     irrelevant-files:
       - ^(test-|)requirements.txt$
       - ^.*\.rst$
@@ -196,6 +215,12 @@
       - ^setup.cfg$
       - ^tools/.*$
       - ^tox.ini$
+    required-projects:
+      - openstack/grenade
+      - openstack/devstack-gate
+      - openstack/watcher
+      - openstack/python-watcherclient
+      - openstack/watcher-tempest-plugin
 
 - job:
     # This job is used in python-watcherclient repo

api-ref/source/conf.py

@@ -22,6 +22,9 @@
 # All configuration values have a default; values that are commented out
 # serve to show the default.
 
+from watcher import version as watcher_version
+
+
 extensions = [
     'openstackdocstheme',
     'os_api_ref',
@@ -43,13 +46,21 @@ project = u'Infrastructure Optimization API Reference'
 copyright = u'2010-present, OpenStack Foundation'
 
 # openstackdocstheme options
-openstackdocs_repo_name = 'openstack/watcher'
+repository_name = 'openstack/watcher'
-openstackdocs_auto_name = False
+bug_project = 'watcher'
-openstackdocs_bug_project = 'watcher'
+bug_tag = ''
-openstackdocs_bug_tag = ''
+
+# The version info for the project you're documenting, acts as replacement for
+# |version| and |release|, also used in various other places throughout the
+# built documents.
+#
+# The full version, including alpha/beta/rc tags.
+release = watcher_version.version_info.release_string()
+# The short X.Y version.
+version = watcher_version.version_string
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'native'
+pygments_style = 'sphinx'
 
 # -- Options for HTML output --------------------------------------------------
 
@@ -64,6 +75,10 @@ html_theme_options = {
     "sidebar_mode": "toc",
 }
 
+# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
+# using the given strftime format.
+html_last_updated_fmt = '%Y-%m-%d %H:%M'
+
 # -- Options for LaTeX output -------------------------------------------------
 
 # Grouping the document tree into LaTeX files. List of tuples

babel.cfg

@@ -0,0 +1,2 @@
+[python: **.py]
+

devstack/lib/watcher

@@ -298,7 +298,7 @@ function start_watcher_api {
         service_protocol="http"
     fi
     if [[ "$WATCHER_USE_WSGI_MODE" == "uwsgi" ]]; then
-        run_process "watcher-api" "$(which uwsgi) --procname-prefix watcher-api --ini $WATCHER_UWSGI_CONF"
+        run_process "watcher-api" "$WATCHER_BIN_DIR/uwsgi --procname-prefix watcher-api --ini $WATCHER_UWSGI_CONF"
         watcher_url=$service_protocol://$SERVICE_HOST/infra-optim
     else
         watcher_url=$service_protocol://$SERVICE_HOST:$service_port

doc/ext/term.py

@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from __future__ import unicode_literals
+
 import importlib
 import inspect
 

doc/requirements.txt

@@ -1,10 +1,10 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
-openstackdocstheme>=2.2.1 # Apache-2.0
+openstackdocstheme>=1.20.0 # Apache-2.0
-sphinx>=2.0.0,!=2.1.0 # BSD
+sphinx>=1.8.0,!=2.1.0,!=3.0.0 # BSD
 sphinxcontrib-pecanwsme>=0.8.0 # Apache-2.0
 sphinxcontrib-svg2pdfconverter>=0.1.0 # BSD
-reno>=3.1.0 # Apache-2.0
+reno>=2.7.0 # Apache-2.0
 sphinxcontrib-apidoc>=0.2.0  # BSD
 os-api-ref>=1.4.0 # Apache-2.0

doc/source/admin/policy.rst

@@ -17,14 +17,6 @@
 Policies
 ========
 
-.. warning::
-
-   JSON formatted policy file is deprecated since Watcher 6.0.0 (Wallaby).
-   This `oslopolicy-convert-json-to-yaml`__ tool will migrate your existing
-   JSON-formatted policy file to YAML in a backward-compatible way.
-
-.. __: https://docs.openstack.org/oslo.policy/latest/cli/oslopolicy-convert-json-to-yaml.html
-
 Watcher's public API calls may be restricted to certain sets of users using a
 policy configuration file. This document explains exactly how policies are
 configured and what they apply to.

doc/source/conf.py

@@ -14,6 +14,7 @@
 import os
 import sys
 
+from watcher import version as watcher_version
 from watcher import objects
 
 objects.register_all()
@@ -56,8 +57,18 @@ source_suffix = '.rst'
 master_doc = 'index'
 
 # General information about the project.
-project = 'Watcher'
+project = u'Watcher'
-copyright = 'OpenStack Foundation'
+copyright = u'OpenStack Foundation'
+
+# The version info for the project you're documenting, acts as replacement for
+# |version| and |release|, also used in various other places throughout the
+# built documents.
+#
+# The short X.Y version.
+# The full version, including alpha/beta/rc tags.
+release = watcher_version.version_info.release_string()
+# The short X.Y version.
+version = watcher_version.version_string
 
 # A list of ignored prefixes for module index sorting.
 modindex_common_prefix = ['watcher.']
@@ -83,7 +94,7 @@ add_module_names = True
 suppress_warnings = ['app.add_directive']
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'native'
+pygments_style = 'sphinx'
 
 # -- Options for man page output --------------------------------------------
 
@@ -91,14 +102,14 @@ pygments_style = 'native'
 # List of tuples 'sourcefile', 'target', u'title', u'Authors name', 'manual'
 
 man_pages = [
-    ('man/watcher-api', 'watcher-api', 'Watcher API Server',
+    ('man/watcher-api', 'watcher-api', u'Watcher API Server',
-     ['OpenStack'], 1),
+     [u'OpenStack'], 1),
-    ('man/watcher-applier', 'watcher-applier', 'Watcher Applier',
+    ('man/watcher-applier', 'watcher-applier', u'Watcher Applier',
-     ['OpenStack'], 1),
+     [u'OpenStack'], 1),
     ('man/watcher-db-manage', 'watcher-db-manage',
-     'Watcher Db Management Utility', ['OpenStack'], 1),
+     u'Watcher Db Management Utility', [u'OpenStack'], 1),
     ('man/watcher-decision-engine', 'watcher-decision-engine',
-     'Watcher Decision Engine', ['OpenStack'], 1),
+     u'Watcher Decision Engine', [u'OpenStack'], 1),
 ]
 
 # -- Options for HTML output --------------------------------------------------
@@ -114,13 +125,12 @@ html_theme = 'openstackdocs'
 # Output file base name for HTML help builder.
 htmlhelp_basename = '%sdoc' % project
 
+html_last_updated_fmt = '%Y-%m-%d %H:%M'
 
 #openstackdocstheme options
-openstackdocs_repo_name = 'openstack/watcher'
+repository_name = 'openstack/watcher'
-openstackdocs_pdf_link = True
+bug_project = 'watcher'
-openstackdocs_auto_name = False
+bug_tag = ''
-openstackdocs_bug_project = 'watcher'
-openstackdocs_bug_tag = ''
 
 # Grouping the document tree into LaTeX files. List of tuples
 # (source start file, target name, title, author, documentclass
@@ -128,8 +138,8 @@ openstackdocs_bug_tag = ''
 latex_documents = [
     ('index',
      'doc-watcher.tex',
-     'Watcher Documentation',
+     u'%s Documentation' % project,
-     'OpenStack Foundation', 'manual'),
+     u'OpenStack Foundation', 'manual'),
 ]
 
 # If false, no module index is generated.

doc/source/contributor/devstack.rst

@@ -47,8 +47,6 @@ unavailable as well as `instance_l3_cpu_cache`::
         [[local|localrc]]
         enable_plugin watcher https://opendev.org/openstack/watcher
 
-        enable_plugin watcher-dashboard https://opendev.org/openstack/watcher-dashboard
-
         enable_plugin ceilometer https://opendev.org/openstack/ceilometer.git
         CEILOMETER_BACKEND=gnocchi
 

doc/source/contributor/plugin/strategy-plugin.rst

@@ -56,6 +56,9 @@ Here is an example showing how you can write a plugin called ``NewStrategy``:
     # filepath: thirdparty/new.py
     # import path: thirdparty.new
     import abc
+
+    import six
+
     from watcher._i18n import _
     from watcher.decision_engine.strategy.strategies import base
 

doc/source/strategies/saving_energy.rst

@@ -89,9 +89,9 @@ step 2: Create audit to do optimization
 .. code-block:: shell
 
     $ openstack optimize audittemplate create \
-      saving_energy_template1 saving_energy --strategy saving_energy
+      at1 saving_energy --strategy saving_energy
 
-    $ openstack optimize audit create -a saving_energy_audit1 \
+    $ openstack optimize audit create -a at1 \
       -p free_used_percent=20.0
 
 External Links

lower-constraints.txt

@@ -0,0 +1,161 @@
+alabaster==0.7.10
+alembic==0.9.8
+amqp==2.2.2
+appdirs==1.4.3
+APScheduler==3.5.1
+asn1crypto==0.24.0
+automaton==1.14.0
+Babel==2.5.3
+beautifulsoup4==4.6.0
+cachetools==2.0.1
+certifi==2018.1.18
+cffi==1.11.5
+chardet==3.0.4
+cliff==2.11.0
+cmd2==0.8.1
+contextlib2==0.5.5
+coverage==4.5.1
+croniter==0.3.20
+cryptography==2.1.4
+debtcollector==1.19.0
+decorator==4.2.1
+deprecation==2.0
+doc8==0.8.0
+docutils==0.14
+dogpile.cache==0.6.5
+dulwich==0.19.0
+enum34==1.1.6
+enum-compat==0.0.2
+eventlet==0.20.0
+extras==1.0.0
+fasteners==0.14.1
+fixtures==3.0.0
+freezegun==0.3.10
+future==0.16.0
+futurist==1.8.0
+gitdb2==2.0.3
+GitPython==2.1.8
+gnocchiclient==7.0.1
+greenlet==0.4.13
+idna==2.6
+imagesize==1.0.0
+iso8601==0.1.12
+Jinja2==2.10
+jmespath==0.9.3
+jsonpatch==1.21
+jsonpointer==2.0
+jsonschema==2.6.0
+keystoneauth1==3.4.0
+keystonemiddleware==4.21.0
+kombu==4.1.0
+linecache2==1.0.0
+logutils==0.3.5
+lxml==4.1.1
+Mako==1.0.7
+MarkupSafe==1.0
+mccabe==0.2.1
+microversion_parse==0.2.1
+mock==2.0.0
+monotonic==1.4
+mox3==0.25.0
+msgpack==0.5.6
+munch==2.2.0
+netaddr==0.7.19
+netifaces==0.10.6
+networkx==2.2
+openstackdocstheme==1.20.0
+openstacksdk==0.12.0
+os-api-ref===1.4.0
+os-client-config==1.29.0
+os-service-types==1.2.0
+os-testr==1.0.0
+osc-lib==1.10.0
+os-resource-classes==0.4.0
+oslo.cache==1.29.0
+oslo.concurrency==3.26.0
+oslo.config==5.2.0
+oslo.context==2.21.0
+oslo.db==4.35.0
+oslo.i18n==3.20.0
+oslo.log==3.37.0
+oslo.messaging==8.1.2
+oslo.middleware==3.35.0
+oslo.policy==1.34.0
+oslo.reports==1.27.0
+oslo.serialization==2.25.0
+oslo.service==1.30.0
+oslo.upgradecheck==0.1.0
+oslo.utils==3.36.0
+oslo.versionedobjects==1.32.0
+oslotest==3.3.0
+packaging==17.1
+Paste==2.0.3
+PasteDeploy==1.5.2
+pbr==3.1.1
+pecan==1.3.2
+pika==0.10.0
+pika-pool==0.1.3
+prettytable==0.7.2
+psutil==5.4.3
+pycadf==2.7.0
+pycparser==2.18
+Pygments==2.2.0
+pyinotify==0.9.6
+pyOpenSSL==17.5.0
+pyparsing==2.2.0
+pyperclip==1.6.0
+python-ceilometerclient==2.9.0
+python-cinderclient==3.5.0
+python-dateutil==2.7.0
+python-editor==1.0.3
+python-glanceclient==2.9.1
+python-ironicclient==2.5.0
+python-keystoneclient==3.15.0
+python-mimeparse==1.6.0
+python-monascaclient==1.12.0
+python-neutronclient==6.7.0
+python-novaclient==14.1.0
+python-openstackclient==3.14.0
+python-subunit==1.2.0
+pytz==2018.3
+PyYAML==3.12
+reno==2.7.0
+repoze.lru==0.7
+requests==2.18.4
+requestsexceptions==1.4.0
+restructuredtext-lint==1.1.3
+rfc3986==1.1.0
+Routes==2.4.1
+simplegeneric==0.8.1
+simplejson==3.13.2
+six==1.11.0
+smmap2==2.0.3
+snowballstemmer==1.2.1
+Sphinx==1.6.5
+sphinxcontrib-httpdomain==1.6.1
+sphinxcontrib-pecanwsme==0.8.0
+sphinxcontrib-websupport==1.0.1
+SQLAlchemy==1.2.5
+sqlalchemy-migrate==0.11.0
+sqlparse==0.2.4
+statsd==3.2.2
+stestr==2.0.0
+stevedore==1.28.0
+taskflow==3.7.1
+Tempita==0.5.2
+tenacity==4.9.0
+testresources==2.0.1
+testscenarios==0.5.0
+testtools==2.3.0
+traceback2==1.4.0
+tzlocal==1.5.1
+ujson==1.35
+unittest2==1.1.0
+urllib3==1.22
+vine==1.1.4
+waitress==1.1.0
+warlock==1.3.0
+WebOb==1.8.5
+WebTest==2.0.29
+wrapt==1.10.11
+WSME==0.9.2

playbooks/legacy/grenade-devstack-watcher/post.yaml

@@ -0,0 +1,15 @@
+- hosts: primary
+  tasks:
+
+    - name: Copy files from {{ ansible_user_dir }}/workspace/ on node
+      synchronize:
+        src: '{{ ansible_user_dir }}/workspace/'
+        dest: '{{ zuul.executor.log_root }}'
+        mode: pull
+        copy_links: true
+        verify_host: true
+        rsync_opts:
+          - --include=/logs/**
+          - --include=*/
+          - --exclude=*
+          - --prune-empty-dirs

playbooks/legacy/grenade-devstack-watcher/run.yaml

@@ -0,0 +1,60 @@
+- hosts: all
+  name: legacy-grenade-dsvm-watcher
+  tasks:
+
+    - name: Ensure legacy workspace directory
+      file:
+        path: '{{ ansible_user_dir }}/workspace'
+        state: directory
+
+    - shell:
+        cmd: |
+          set -e
+          set -x
+          cat > clonemap.yaml << EOF
+          clonemap:
+            - name: openstack/devstack-gate
+              dest: devstack-gate
+          EOF
+          /usr/zuul-env/bin/zuul-cloner -m clonemap.yaml --cache-dir /opt/git \
+              https://opendev.org \
+              openstack/devstack-gate
+        executable: /bin/bash
+        chdir: '{{ ansible_user_dir }}/workspace'
+      environment: '{{ zuul | zuul_legacy_vars }}'
+
+    - shell:
+        cmd: |
+          set -e
+          set -x
+          export PYTHONUNBUFFERED=true
+
+          export PROJECTS="openstack/grenade $PROJECTS"
+          export PROJECTS="openstack/watcher $PROJECTS"
+          export PROJECTS="openstack/watcher-tempest-plugin $PROJECTS"
+          export PROJECTS="openstack/python-watcherclient $PROJECTS"
+          export DEVSTACK_PROJECT_FROM_GIT="python-watcherclient $DEVSTACK_PROJECT_FROM_GIT"
+
+          export GRENADE_PLUGINRC="enable_grenade_plugin watcher https://opendev.org/openstack/watcher"
+          export DEVSTACK_LOCAL_CONFIG+=$'\n'"export TEMPEST_PLUGINS='/opt/stack/new/watcher-tempest-plugin'"
+
+          export DEVSTACK_GATE_TEMPEST_NOTESTS=1
+          export DEVSTACK_GATE_GRENADE=pullup
+          export DEVSTACK_GATE_USE_PYTHON3=True
+          export BRANCH_OVERRIDE=default
+          if [ "$BRANCH_OVERRIDE" != "default" ] ; then
+              export OVERRIDE_ZUUL_BRANCH=$BRANCH_OVERRIDE
+          fi
+          # Add configuration values for enabling security features in local.conf
+          function pre_test_hook {
+              if [ -f /opt/stack/old/watcher-tempest-plugin/tools/pre_test_hook.sh ] ; then
+                  . /opt/stack/old/watcher-tempest-plugin/tools/pre_test_hook.sh
+              fi
+          }
+          export -f pre_test_hook
+
+          cp devstack-gate/devstack-vm-gate-wrap.sh ./safe-devstack-vm-gate-wrap.sh
+          ./safe-devstack-vm-gate-wrap.sh
+        executable: /bin/bash
+        chdir: '{{ ansible_user_dir }}/workspace'
+      environment: '{{ zuul | zuul_legacy_vars }}'

releasenotes/notes/deprecate-json-formatted-policy-file-3a92379e9f5dd203.yaml

@@ -1,20 +0,0 @@
----
-upgrade:
-  - |
-    The default value of ``[oslo_policy] policy_file`` config option has
-    been changed from ``policy.json`` to ``policy.yaml``.
-    Operators who are utilizing customized or previously generated
-    static policy JSON files (which are not needed by default), should
-    generate new policy files or convert them in YAML format. Use the
-    `oslopolicy-convert-json-to-yaml
-    <https://docs.openstack.org/oslo.policy/latest/cli/oslopolicy-convert-json-to-yaml.html>`_
-    tool to convert a JSON to YAML formatted policy file in
-    backward compatible way.
-deprecations:
-  - |
-    Use of JSON policy files was deprecated by the ``oslo.policy`` library
-    during the Victoria development cycle. As a result, this deprecation is
-    being noted in the Wallaby cycle with an anticipated future removal of support
-    by ``oslo.policy``. As such operators will need to convert to YAML policy
-    files. Please see the upgrade notes for details on migration of any
-    custom policy files.

releasenotes/source/2023.1.rst

@@ -1,6 +0,0 @@
-===========================
-2023.1 Series Release Notes
-===========================
-
-.. release-notes::
-   :branch: stable/2023.1

releasenotes/source/conf.py

@@ -53,7 +53,8 @@ source_suffix = '.rst'
 master_doc = 'index'
 
 # General information about the project.
-copyright = '2016, Watcher developers'
+project = u'watcher'
+copyright = u'2016, Watcher developers'
 
 # Release notes are version independent
 # The short X.Y version.
@@ -90,15 +91,11 @@ exclude_patterns = ['_build']
 #show_authors = False
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'native'
+pygments_style = 'sphinx'
 
 # A list of ignored prefixes for module index sorting.
 #modindex_common_prefix = []
 
-# openstackdocstheme options
-openstackdocs_repo_name = 'openstack/watcher'
-openstackdocs_bug_project = 'watcher'
-openstackdocs_bug_tag = ''
 
 # -- Options for HTML output --------------------------------------------------
 
@@ -196,8 +193,8 @@ latex_elements = {
 # Grouping the document tree into LaTeX files. List of tuples
 # (source start file, target name, title, author, documentclass [howto/manual])
 latex_documents = [
-  ('index', 'watcher.tex', 'Watcher Documentation',
+  ('index', 'watcher.tex', u'Watcher Documentation',
-   'Watcher developers', 'manual'),
+   u'Watcher developers', 'manual'),
 ]
 
 # The name of an image file (relative to this directory) to place at the top of
@@ -226,8 +223,8 @@ latex_documents = [
 # One entry per manual page. List of tuples
 # (source start file, name, description, authors, manual section).
 man_pages = [
-    ('index', 'watcher', 'Watcher Documentation',
+    ('index', 'watcher', u'Watcher Documentation',
-     ['Watcher developers'], 1)
+     [u'Watcher developers'], 1)
 ]
 
 # If true, show URL addresses after external links.
@@ -240,8 +237,8 @@ man_pages = [
 # (source start file, target name, title, author,
 #  dir menu entry, description, category)
 texinfo_documents = [
-  ('index', 'watcher', 'Watcher Documentation',
+  ('index', 'watcher', u'Watcher Documentation',
-   'Watcher developers', 'watcher', 'One line description of project.',
+   u'Watcher developers', 'watcher', 'One line description of project.',
    'Miscellaneous'),
 ]
 

releasenotes/source/index.rst

@@ -21,13 +21,6 @@ Contents:
    :maxdepth: 1
 
    unreleased
-   2023.1
-   zed
-   yoga
-   xena
-   wallaby
-   victoria
-   ussuri
    train
    stein
    rocky

releasenotes/source/locale/fr/LC_MESSAGES/releasenotes.po

@@ -1,33 +0,0 @@
-# Gérald LONLAS <g.lonlas@gmail.com>, 2016. #zanata
-msgid ""
-msgstr ""
-"Project-Id-Version: python-watcher\n"
-"Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-03-22 02:21+0000\n"
-"MIME-Version: 1.0\n"
-"Content-Type: text/plain; charset=UTF-8\n"
-"Content-Transfer-Encoding: 8bit\n"
-"PO-Revision-Date: 2016-10-22 06:44+0000\n"
-"Last-Translator: Gérald LONLAS <g.lonlas@gmail.com>\n"
-"Language-Team: French\n"
-"Language: fr\n"
-"X-Generator: Zanata 4.3.3\n"
-"Plural-Forms: nplurals=2; plural=(n > 1)\n"
-
-msgid "0.29.0"
-msgstr "0.29.0"
-
-msgid "Contents:"
-msgstr "Contenu :"
-
-msgid "Current Series Release Notes"
-msgstr "Note de la release actuelle"
-
-msgid "New Features"
-msgstr "Nouvelles fonctionnalités"
-
-msgid "Newton Series Release Notes"
-msgstr "Note de release pour Newton"
-
-msgid "Welcome to watcher's Release Notes documentation!"
-msgstr "Bienvenue dans la documentation de la note de Release de Watcher"

releasenotes/source/ussuri.rst

@@ -1,6 +0,0 @@
-===========================
-Ussuri Series Release Notes
-===========================
-
-.. release-notes::
-   :branch: stable/ussuri

releasenotes/source/victoria.rst

@@ -1,6 +0,0 @@
-=============================
-Victoria Series Release Notes
-=============================
-
-.. release-notes::
-   :branch: stable/victoria

releasenotes/source/wallaby.rst

@@ -1,6 +0,0 @@
-============================
-Wallaby Series Release Notes
-============================
-
-.. release-notes::
-   :branch: stable/wallaby

releasenotes/source/xena.rst

@@ -1,6 +0,0 @@
-=========================
-Xena Series Release Notes
-=========================
-
-.. release-notes::
-   :branch: stable/xena

releasenotes/source/yoga.rst

@@ -1,6 +0,0 @@
-=========================
-Yoga Series Release Notes
-=========================
-
-.. release-notes::
-   :branch: stable/yoga

releasenotes/source/zed.rst

@@ -1,6 +0,0 @@
-========================
-Zed Series Release Notes
-========================
-
-.. release-notes::
-   :branch: stable/zed

requirements.txt

@@ -1,35 +1,36 @@
-#  The order of packages is significant, because pip processes them in the order
+# The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
 apscheduler>=3.5.1 # MIT License
 jsonpatch>=1.21 # BSD
 keystoneauth1>=3.4.0 # Apache-2.0
-jsonschema>=3.2.0 # MIT
+jsonschema>=2.6.0 # MIT
 keystonemiddleware>=4.21.0 # Apache-2.0
-lxml>=4.5.1 # BSD
+lxml>=4.1.1 # BSD
 croniter>=0.3.20 # MIT License
 os-resource-classes>=0.4.0
 oslo.concurrency>=3.26.0 # Apache-2.0
 oslo.cache>=1.29.0 # Apache-2.0
-oslo.config>=6.8.0 # Apache-2.0
+oslo.config>=5.2.0 # Apache-2.0
 oslo.context>=2.21.0 # Apache-2.0
-oslo.db>=4.44.0 # Apache-2.0
+oslo.db>=4.35.0 # Apache-2.0
 oslo.i18n>=3.20.0 # Apache-2.0
 oslo.log>=3.37.0 # Apache-2.0
-oslo.messaging>=14.1.0 # Apache-2.0
+oslo.messaging>=8.1.2 # Apache-2.0
-oslo.policy>=3.6.0 # Apache-2.0
+oslo.policy>=1.34.0 # Apache-2.0
 oslo.reports>=1.27.0 # Apache-2.0
 oslo.serialization>=2.25.0 # Apache-2.0
 oslo.service>=1.30.0 # Apache-2.0
-oslo.upgradecheck>=1.3.0 # Apache-2.0
+oslo.upgradecheck>=0.1.0 # Apache-2.0
 oslo.utils>=3.36.0 # Apache-2.0
 oslo.versionedobjects>=1.32.0 # Apache-2.0
 PasteDeploy>=1.5.2 # MIT
 pbr>=3.1.1 # Apache-2.0
 pecan>=1.3.2 # BSD
-PrettyTable>=0.7.2 # BSD
+PrettyTable<0.8,>=0.7.2 # BSD
 gnocchiclient>=7.0.1 # Apache-2.0
+python-ceilometerclient>=2.9.0 # Apache-2.0
 python-cinderclient>=3.5.0 # Apache-2.0
 python-glanceclient>=2.9.1 # Apache-2.0
 python-keystoneclient>=3.15.0 # Apache-2.0
@@ -38,11 +39,12 @@ python-neutronclient>=6.7.0 # Apache-2.0
 python-novaclient>=14.1.0 # Apache-2.0
 python-openstackclient>=3.14.0 # Apache-2.0
 python-ironicclient>=2.5.0 # Apache-2.0
+six>=1.11.0 # MIT
 SQLAlchemy>=1.2.5 # MIT
 stevedore>=1.28.0 # Apache-2.0
-taskflow>=3.8.0 # Apache-2.0
+taskflow>=3.7.1 # Apache-2.0
 WebOb>=1.8.5 # MIT
 WSME>=0.9.2 # MIT
-networkx>=2.4 # BSD
+networkx>=2.2;python_version>='3.4' # BSD
 microversion_parse>=0.2.1 # Apache-2.0
 futurist>=1.8.0 # Apache-2.0

setup.cfg

@@ -1,12 +1,12 @@
 [metadata]
 name = python-watcher
 summary = OpenStack Watcher provides a flexible and scalable resource optimization service for multi-tenant OpenStack-based clouds.
-description_file =
+description-file =
     README.rst
 author = OpenStack
-author_email = openstack-discuss@lists.openstack.org
+author-email = openstack-discuss@lists.openstack.org
-home_page = https://docs.openstack.org/watcher/latest/
+home-page = https://docs.openstack.org/watcher/latest/
-python_requires = >=3.6
+python-requires = >=3.6
 classifier =
     Environment :: OpenStack
     Intended Audience :: Information Technology
@@ -19,7 +19,6 @@ classifier =
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
-    Programming Language :: Python :: 3.8
 
 [files]
 packages =
@@ -108,3 +107,18 @@ watcher_cluster_data_model_collectors =
     compute = watcher.decision_engine.model.collector.nova:NovaClusterDataModelCollector
     storage = watcher.decision_engine.model.collector.cinder:CinderClusterDataModelCollector
     baremetal = watcher.decision_engine.model.collector.ironic:BaremetalClusterDataModelCollector
+
+
+[compile_catalog]
+directory = watcher/locale
+domain = watcher
+
+[update_catalog]
+domain = watcher
+output_dir = watcher/locale
+input_file = watcher/locale/watcher.pot
+
+[extract_messages]
+keywords = _ gettext ngettext l_ lazy_gettext _LI _LW _LE _LC
+mapping_file = babel.cfg
+output_file = watcher/locale/watcher.pot

test-requirements.txt

@@ -5,11 +5,12 @@
 coverage>=4.5.1 # Apache-2.0
 doc8>=0.8.0 # Apache-2.0
 freezegun>=0.3.10 # Apache-2.0
-hacking>=3.0.1,<3.1.0 # Apache-2.0
+hacking>=3.0,<3.1.0 # Apache-2.0
+mock>=2.0.0 # BSD
 oslotest>=3.3.0 # Apache-2.0
+os-testr>=1.0.0 # Apache-2.0
 testscenarios>=0.5.0 # Apache-2.0/BSD
 testtools>=2.3.0 # MIT
 stestr>=2.0.0 # Apache-2.0
 os-api-ref>=1.4.0 # Apache-2.0
 bandit>=1.6.0 # Apache-2.0
-WebTest>=2.0.27 # MIT

tox.ini

@@ -1,40 +1,37 @@
 [tox]
-minversion = 3.18.0
+minversion = 2.0
-envlist = py3,pep8
+envlist = py36,py37,pep8
+skipsdist = True
 ignore_basepython_conflict = True
 
 [testenv]
 basepython = python3
 usedevelop = True
-allowlist_externals = find
+whitelist_externals = find
                       rm
-install_command = pip install -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master} {opts} {packages}
+install_command = pip install {opts} {packages}
 setenv =
    VIRTUAL_ENV={envdir}
 deps =
+    -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/ussuri}
     -r{toxinidir}/test-requirements.txt
     -r{toxinidir}/requirements.txt
 commands =
   rm -f .testrepository/times.dbm
   find . -type f -name "*.py[c|o]" -delete
   stestr run {posargs}
-passenv =
+passenv = http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy NO_PROXY
-  http_proxy
-  HTTP_PROXY
-  https_proxy
-  HTTPS_PROXY
-  no_proxy
-  NO_PROXY
 
 [testenv:pep8]
 commands =
     doc8 doc/source/ CONTRIBUTING.rst HACKING.rst README.rst
     flake8
-    #bandit -r watcher -x watcher/tests/* -n5 -ll -s B320
+    bandit -r watcher -x watcher/tests/* -n5 -ll -s B320
 
 [testenv:venv]
 setenv = PYTHONHASHSEED=0
 deps =
+    -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/ussuri}
     -r{toxinidir}/doc/requirements.txt
     -r{toxinidir}/test-requirements.txt
     -r{toxinidir}/requirements.txt
@@ -52,15 +49,14 @@ commands =
 
 [testenv:docs]
 setenv = PYTHONHASHSEED=0
-deps =
+deps = -r{toxinidir}/doc/requirements.txt
-  -r{toxinidir}/doc/requirements.txt
 commands =
   rm -fr doc/build doc/source/api/ .autogenerated
   sphinx-build -W --keep-going -b html doc/source doc/build/html
 
 [testenv:api-ref]
 deps = -r{toxinidir}/doc/requirements.txt
-allowlist_externals = bash
+whitelist_externals = bash
 commands =
   bash -c 'rm -rf api-ref/build'
   sphinx-build -W --keep-going -b html -d api-ref/build/doctrees api-ref/source api-ref/build/html
@@ -77,28 +73,6 @@ commands =
 commands =
     oslopolicy-sample-generator --config-file etc/watcher/oslo-policy-generator/watcher-policy-generator.conf
 
-[testenv:wheel]
-commands = python setup.py bdist_wheel
-
-[testenv:pdf-docs]
-envdir = {toxworkdir}/docs
-deps = {[testenv:docs]deps}
-allowlist_externals =
-  rm
-  make
-commands =
-  rm -rf doc/build/pdf
-  sphinx-build -W --keep-going -b latex doc/source doc/build/pdf
-  make -C doc/build/pdf
-
-[testenv:releasenotes]
-deps = -r{toxinidir}/doc/requirements.txt
-commands = sphinx-build -a -W -E -d releasenotes/build/doctrees --keep-going -b html releasenotes/source releasenotes/build/html
-
-[testenv:bandit]
-deps = -r{toxinidir}/test-requirements.txt
-commands = bandit -r watcher -x watcher/tests/* -n5 -ll -s B320
-
 [flake8]
 filename = *.py,app.wsgi
 show-source=True
@@ -108,6 +82,9 @@ builtins= _
 enable-extensions = H106,H203,H904
 exclude=.venv,.git,.tox,dist,doc,*lib/python*,*egg,build,*sqlalchemy/alembic/versions/*,demo/,releasenotes
 
+[testenv:wheel]
+commands = python setup.py bdist_wheel
+
 [hacking]
 import_exceptions = watcher._i18n
 
@@ -128,10 +105,35 @@ extension =
    N340 = checks:check_oslo_i18n_wrapper
    N341 = checks:check_builtins_gettext
    N342 = checks:no_redundant_import_alias
-   N366 = checks:import_stock_mock
 paths = ./watcher/hacking
 
+
 [doc8]
 extension=.rst
 # todo: stop ignoring doc/source/man when https://bugs.launchpad.net/doc8/+bug/1502391 is fixed
 ignore-path=doc/source/image_src,doc/source/man,doc/source/api
+
+[testenv:pdf-docs]
+envdir = {toxworkdir}/docs
+deps = {[testenv:docs]deps}
+whitelist_externals =
+  rm
+  make
+commands =
+  rm -rf doc/build/pdf
+  sphinx-build -W --keep-going -b latex doc/source doc/build/pdf
+  make -C doc/build/pdf
+
+[testenv:releasenotes]
+deps = -r{toxinidir}/doc/requirements.txt
+commands = sphinx-build -a -W -E -d releasenotes/build/doctrees --keep-going -b html releasenotes/source releasenotes/build/html
+
+[testenv:bandit]
+deps = -r{toxinidir}/test-requirements.txt
+commands = bandit -r watcher -x watcher/tests/* -n5 -ll -s B320
+
+[testenv:lower-constraints]
+deps =
+  -c{toxinidir}/lower-constraints.txt
+  -r{toxinidir}/test-requirements.txt
+  -r{toxinidir}/requirements.txt

watcher/api/config.py

@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from __future__ import unicode_literals
+
 from oslo_config import cfg
 from watcher.api import hooks
 

watcher/api/controllers/v1/action.py

@@ -57,7 +57,6 @@ are dynamically loaded by Watcher at launch time.
 
 import datetime
 
-from http import HTTPStatus
 import pecan
 from pecan import rest
 import wsme
@@ -363,7 +362,7 @@ class ActionsController(rest.RestController):
 
         return Action.convert_with_links(action)
 
-    @wsme_pecan.wsexpose(Action, body=Action, status_code=HTTPStatus.CREATED)
+    @wsme_pecan.wsexpose(Action, body=Action, status_code=201)
     def post(self, action):
         """Create a new action(forbidden).
 
@@ -423,7 +422,7 @@ class ActionsController(rest.RestController):
         action_to_update.save()
         return Action.convert_with_links(action_to_update)
 
-    @wsme_pecan.wsexpose(None, types.uuid, status_code=HTTPStatus.NO_CONTENT)
+    @wsme_pecan.wsexpose(None, types.uuid, status_code=204)
     def delete(self, action_uuid):
         """Delete a action(forbidden).
 

watcher/api/controllers/v1/action_plan.py

@@ -56,7 +56,6 @@ state machine <action_plan_state_machine>`.
 
 import datetime
 
-from http import HTTPStatus
 from oslo_log import log
 import pecan
 from pecan import rest
@@ -461,7 +460,7 @@ class ActionPlansController(rest.RestController):
 
         return ActionPlan.convert_with_links(action_plan)
 
-    @wsme_pecan.wsexpose(None, types.uuid, status_code=HTTPStatus.NO_CONTENT)
+    @wsme_pecan.wsexpose(None, types.uuid, status_code=204)
     def delete(self, action_plan_uuid):
         """Delete an action plan.
 

watcher/api/controllers/v1/audit.py

@@ -32,7 +32,6 @@ states, visit :ref:`the Audit State machine <audit_state_machine>`.
 import datetime
 from dateutil import tz
 
-from http import HTTPStatus
 import pecan
 from pecan import rest
 import wsme
@@ -596,8 +595,7 @@ class AuditsController(rest.RestController):
 
         return Audit.convert_with_links(rpc_audit)
 
-    @wsme_pecan.wsexpose(Audit, body=AuditPostType,
+    @wsme_pecan.wsexpose(Audit, body=AuditPostType, status_code=201)
-                         status_code=HTTPStatus.CREATED)
     def post(self, audit_p):
         """Create a new audit.
 
@@ -719,7 +717,7 @@ class AuditsController(rest.RestController):
         audit_to_update.save()
         return Audit.convert_with_links(audit_to_update)
 
-    @wsme_pecan.wsexpose(None, wtypes.text, status_code=HTTPStatus.NO_CONTENT)
+    @wsme_pecan.wsexpose(None, wtypes.text, status_code=204)
     def delete(self, audit):
         """Delete an audit.
 

watcher/api/controllers/v1/audit_template.py

@@ -45,7 +45,6 @@ will be launched automatically or will need a manual confirmation from the
 
 import datetime
 
-from http import HTTPStatus
 import pecan
 from pecan import rest
 import wsme
@@ -139,9 +138,6 @@ class AuditTemplatePostType(wtypes.Base):
             raise exception.InvalidGoal(goal=audit_template.goal)
 
         if audit_template.scope:
-            keys = [list(s)[0] for s in audit_template.scope]
-            if keys[0] not in ('compute', 'storage'):
-                audit_template.scope = [dict(compute=audit_template.scope)]
             common_utils.Draft4Validator(
                 AuditTemplatePostType._build_schema()
                 ).validate(audit_template.scope)
@@ -162,23 +158,18 @@ class AuditTemplatePostType(wtypes.Base):
                         "included and excluded together"))
 
         if audit_template.strategy:
-            try:
+            available_strategies = objects.Strategy.list(
-                if (common_utils.is_uuid_like(audit_template.strategy) or
+                AuditTemplatePostType._ctx)
-                        common_utils.is_int_like(audit_template.strategy)):
+            available_strategies_map = {
-                    strategy = objects.Strategy.get(
+                s.uuid: s for s in available_strategies}
-                        AuditTemplatePostType._ctx, audit_template.strategy)
+            if audit_template.strategy not in available_strategies_map:
-                else:
-                    strategy = objects.Strategy.get_by_name(
-                        AuditTemplatePostType._ctx, audit_template.strategy)
-            except Exception:
                 raise exception.InvalidStrategy(
                     strategy=audit_template.strategy)
 
+            strategy = available_strategies_map[audit_template.strategy]
             # Check that the strategy we indicate is actually related to the
             # specified goal
             if strategy.goal_id != goal.id:
-                available_strategies = objects.Strategy.list(
-                    AuditTemplatePostType._ctx)
                 choices = ["'%s' (%s)" % (s.uuid, s.name)
                            for s in available_strategies]
                 raise exception.InvalidStrategy(
@@ -619,7 +610,7 @@ class AuditTemplatesController(rest.RestController):
 
     @wsme.validate(types.uuid, AuditTemplatePostType)
     @wsme_pecan.wsexpose(AuditTemplate, body=AuditTemplatePostType,
-                         status_code=HTTPStatus.CREATED)
+                         status_code=201)
     def post(self, audit_template_postdata):
         """Create a new audit template.
 
@@ -695,7 +686,7 @@ class AuditTemplatesController(rest.RestController):
         audit_template_to_update.save()
         return AuditTemplate.convert_with_links(audit_template_to_update)
 
-    @wsme_pecan.wsexpose(None, wtypes.text, status_code=HTTPStatus.NO_CONTENT)
+    @wsme_pecan.wsexpose(None, wtypes.text, status_code=204)
     def delete(self, audit_template):
         """Delete a audit template.
 

watcher/api/controllers/v1/service.py

@@ -19,6 +19,8 @@ Service mechanism provides ability to monitor Watcher services state.
 """
 
 import datetime
+import six
+
 from oslo_config import cfg
 from oslo_log import log
 from oslo_utils import timeutils
@@ -68,7 +70,7 @@ class Service(base.APIBase):
         service = objects.Service.get(pecan.request.context, id)
         last_heartbeat = (service.last_seen_up or service.updated_at or
                           service.created_at)
-        if isinstance(last_heartbeat, str):
+        if isinstance(last_heartbeat, six.string_types):
             # NOTE(russellb) If this service came in over rpc via
             # conductor, then the timestamp will be a string and needs to be
             # converted back to a datetime.

watcher/api/controllers/v1/types.py

@@ -15,6 +15,7 @@
 
 from oslo_serialization import jsonutils
 from oslo_utils import strutils
+import six
 import wsme
 from wsme import types as wtypes
 
@@ -131,7 +132,7 @@ class JsonType(wtypes.UserType):
 
     def __str__(self):
         # These are the json serializable native types
-        return ' | '.join(map(str, (wtypes.text, int, float,
+        return ' | '.join(map(str, (wtypes.text, six.integer_types, float,
                                     BooleanType, list, dict, None)))
 
     @staticmethod

watcher/api/controllers/v1/webhooks.py

@@ -14,7 +14,6 @@
 Webhook endpoint for Watcher v1 REST API.
 """
 
-from http import HTTPStatus
 from oslo_log import log
 import pecan
 from pecan import rest
@@ -37,7 +36,7 @@ class WebhookController(rest.RestController):
         self.dc_client = rpcapi.DecisionEngineAPI()
 
     @wsme_pecan.wsexpose(None, wtypes.text, body=types.jsontype,
-                         status_code=HTTPStatus.ACCEPTED)
+                         status_code=202)
     def post(self, audit_ident, body):
         """Trigger the given audit.
 

watcher/api/hooks.py

@@ -15,9 +15,9 @@
 # under the License.
 
 
-from http import HTTPStatus
 from oslo_config import cfg
 from pecan import hooks
+from six.moves import http_client
 
 from watcher.common import context
 
@@ -91,8 +91,8 @@ class NoExceptionTracebackHook(hooks.PecanHook):
         # Do nothing if there is no error.
         # Status codes in the range 200 (OK) to 399 (400 = BAD_REQUEST) are not
         # an error.
-        if (HTTPStatus.OK <= state.response.status_int <
+        if (http_client.OK <= state.response.status_int <
-                HTTPStatus.BAD_REQUEST):
+                http_client.BAD_REQUEST):
             return
 
         json_body = state.response.json

watcher/api/middleware/parsable_error.py

@@ -24,6 +24,7 @@ from xml import etree as et
 
 from oslo_log import log
 from oslo_serialization import jsonutils
+import six
 import webob
 
 from watcher._i18n import _
@@ -83,10 +84,12 @@ class ParsableErrorMiddleware(object):
                             '</error_message>' % state['status_code']]
                 state['headers'].append(('Content-Type', 'application/xml'))
             else:
-                app_iter = [i.decode('utf-8') for i in app_iter]
+                if six.PY3:
+                    app_iter = [i.decode('utf-8') for i in app_iter]
                 body = [jsonutils.dumps(
                     {'error_message': '\n'.join(app_iter)})]
-                body = [item.encode('utf-8') for item in body]
+                if six.PY3:
+                    body = [item.encode('utf-8') for item in body]
                 state['headers'].append(('Content-Type', 'application/json'))
             state['headers'].append(('Content-Length', str(len(body[0]))))
         else:

watcher/api/scheduling.py

@@ -20,6 +20,7 @@ import itertools
 from oslo_config import cfg
 from oslo_log import log
 from oslo_utils import timeutils
+import six
 
 from watcher.common import context as watcher_context
 from watcher.common import scheduling
@@ -82,7 +83,7 @@ class APISchedulingService(scheduling.BackgroundSchedulerService):
         service = objects.Service.get(context, service_id)
         last_heartbeat = (service.last_seen_up or service.updated_at or
                           service.created_at)
-        if isinstance(last_heartbeat, str):
+        if isinstance(last_heartbeat, six.string_types):
             # NOTE(russellb) If this service came in over rpc via
             # conductor, then the timestamp will be a string and needs to be
             # converted back to a datetime.

watcher/applier/action_plan/base.py

@@ -18,9 +18,11 @@
 #
 
 import abc
+import six
 
 
-class BaseActionPlanHandler(object, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class BaseActionPlanHandler(object):
     @abc.abstractmethod
     def execute(self):
         raise NotImplementedError()

watcher/applier/actions/base.py

@@ -19,12 +19,14 @@
 import abc
 
 import jsonschema
+import six
 
 from watcher.common import clients
 from watcher.common.loader import loadable
 
 
-class BaseAction(loadable.Loadable, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class BaseAction(loadable.Loadable):
     # NOTE(jed): by convention we decided
     # that the attribute "resource_id" is the unique id of
     # the resource to which the Action applies to allow us to use it in the

watcher/applier/actions/factory.py

@@ -15,6 +15,8 @@
 # limitations under the License.
 #
 
+from __future__ import unicode_literals
+
 from oslo_log import log
 
 from watcher.applier.loading import default

watcher/applier/actions/migration.py

@@ -186,7 +186,7 @@ class Migrate(base.BaseAction):
         return self.migrate(destination=self.destination_node)
 
     def revert(self):
-        return self.migrate(destination=self.source_node)
+        LOG.info('Migrate action do not revert!')
 
     def abort(self):
         nova = nova_helper.NovaHelper(osc=self.osc)

watcher/applier/actions/resize.py

@@ -95,7 +95,7 @@ class Resize(base.BaseAction):
         return self.resize()
 
     def revert(self):
-        LOG.warning("revert not supported")
+        return self.migrate(destination=self.source_node)
 
     def pre_condition(self):
         # TODO(jed): check if the instance exists / check if the instance is on

watcher/applier/base.py

@@ -26,9 +26,11 @@ See: :doc:`../architecture` for more details on this component.
 """
 
 import abc
+import six
 
 
-class BaseApplier(object, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class BaseApplier(object):
     @abc.abstractmethod
     def execute(self, action_plan_uuid):
         raise NotImplementedError()

watcher/applier/loading/default.py

@@ -11,6 +11,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from __future__ import unicode_literals
+
+
 from watcher.common.loader import default
 
 

watcher/applier/workflow_engine/base.py

@@ -17,6 +17,7 @@
 #
 
 import abc
+import six
 import time
 
 import eventlet
@@ -39,7 +40,8 @@ CANCEL_STATE = [objects.action_plan.State.CANCELLING,
                 objects.action_plan.State.CANCELLED]
 
 
-class BaseWorkFlowEngine(loadable.Loadable, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class BaseWorkFlowEngine(loadable.Loadable):
 
     def __init__(self, config, context=None, applier_manager=None):
         """Constructor

watcher/applier/workflow_engine/default.py

@@ -25,11 +25,8 @@ from taskflow import task as flow_task
 
 from watcher.applier.workflow_engine import base
 from watcher.common import exception
-from watcher import conf
 from watcher import objects
 
-CONF = conf.CONF
-
 LOG = log.getLogger(__name__)
 
 
@@ -130,11 +127,9 @@ class DefaultWorkFlowEngine(base.BaseWorkFlowEngine):
 
 class TaskFlowActionContainer(base.BaseTaskFlowActionContainer):
     def __init__(self, db_action, engine):
-        self.name = "action_type:{0} uuid:{1}".format(db_action.action_type,
+        name = "action_type:{0} uuid:{1}".format(db_action.action_type,
-                                                      db_action.uuid)
+                                                 db_action.uuid)
-        super(TaskFlowActionContainer, self).__init__(self.name,
+        super(TaskFlowActionContainer, self).__init__(name, db_action, engine)
-                                                      db_action,
-                                                      engine)
 
     def do_pre_execute(self):
         db_action = self.engine.notify(self._db_action,
@@ -163,12 +158,6 @@ class TaskFlowActionContainer(base.BaseTaskFlowActionContainer):
         self.action.post_condition()
 
     def do_revert(self, *args, **kwargs):
-        # NOTE: Not rollback action plan
-        if not CONF.watcher_applier.rollback_when_actionplan_failed:
-            LOG.info("Failed actionplan rollback option is turned off, and "
-                     "the following action will be skipped: %s", self.name)
-            return
-
         LOG.warning("Revert action: %s", self.name)
         try:
             # TODO(jed): do we need to update the states in case of failure?

watcher/cmd/__init__.py

@@ -18,10 +18,3 @@
 import eventlet
 
 eventlet.monkey_patch()
-
-# Monkey patch the original current_thread to use the up-to-date _active
-# global variable. See https://bugs.launchpad.net/bugs/1863021 and
-# https://github.com/eventlet/eventlet/issues/592
-import __original_module_threading as orig_threading  # noqa
-import threading  # noqa
-orig_threading.current_thread.__globals__['_active'] = threading._active

watcher/cmd/status.py

@@ -14,7 +14,6 @@
 
 import sys
 
-from oslo_upgradecheck import common_checks
 from oslo_upgradecheck import upgradecheck
 
 from watcher._i18n import _
@@ -44,10 +43,6 @@ class Checks(upgradecheck.UpgradeCommands):
     _upgrade_checks = (
         # Added in Train.
         (_('Minimum Nova API Version'), _minimum_nova_api_version),
-        # Added in Wallaby.
-        (_("Policy File JSON to YAML Migration"),
-         (common_checks.check_policy_json, {'conf': CONF})),
-
     )
 
 

watcher/common/cinder_helper.py

@@ -17,7 +17,7 @@ import time
 from oslo_log import log
 
 from cinderclient import exceptions as cinder_exception
-from cinderclient.v3.volumes import Volume
+from cinderclient.v2.volumes import Volume
 from watcher._i18n import _
 from watcher.common import clients
 from watcher.common import exception

watcher/common/context.py

@@ -13,6 +13,7 @@
 from oslo_context import context
 from oslo_log import log
 from oslo_utils import timeutils
+import six
 
 LOG = log.getLogger(__name__)
 
@@ -68,7 +69,7 @@ class RequestContext(context.RequestContext):
         self.project_id = project_id
         if not timestamp:
             timestamp = timeutils.utcnow()
-        if isinstance(timestamp, str):
+        if isinstance(timestamp, six.string_types):
             timestamp = timeutils.parse_isotime(timestamp)
         self.timestamp = timestamp
         self.user_name = user_name

watcher/common/exception.py

@@ -25,7 +25,6 @@ SHOULD include dedicated exception logging.
 import functools
 import sys
 
-from http import HTTPStatus
 from keystoneclient import exceptions as keystone_exceptions
 from oslo_config import cfg
 from oslo_log import log
@@ -63,7 +62,7 @@ class WatcherException(Exception):
 
     """
     msg_fmt = _("An unknown exception occurred")
-    code = HTTPStatus.INTERNAL_SERVER_ERROR
+    code = 500
     headers = {}
     safe = False
 
@@ -115,12 +114,12 @@ class UnsupportedError(WatcherException):
 
 class NotAuthorized(WatcherException):
     msg_fmt = _("Not authorized")
-    code = HTTPStatus.FORBIDDEN
+    code = 403
 
 
 class NotAcceptable(WatcherException):
     msg_fmt = _("Request not acceptable.")
-    code = HTTPStatus.NOT_ACCEPTABLE
+    code = 406
 
 
 class PolicyNotAuthorized(NotAuthorized):
@@ -133,7 +132,7 @@ class OperationNotPermitted(NotAuthorized):
 
 class Invalid(WatcherException, ValueError):
     msg_fmt = _("Unacceptable parameters")
-    code = HTTPStatus.BAD_REQUEST
+    code = 400
 
 
 class ObjectNotFound(WatcherException):
@@ -142,12 +141,12 @@ class ObjectNotFound(WatcherException):
 
 class Conflict(WatcherException):
     msg_fmt = _('Conflict')
-    code = HTTPStatus.CONFLICT
+    code = 409
 
 
 class ResourceNotFound(ObjectNotFound):
     msg_fmt = _("The %(name)s resource %(id)s could not be found")
-    code = HTTPStatus.NOT_FOUND
+    code = 404
 
 
 class InvalidParameter(Invalid):

watcher/common/loader/base.py

@@ -14,10 +14,14 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from __future__ import unicode_literals
+
 import abc
+import six
 
 
-class BaseLoader(object, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class BaseLoader(object):
 
     @abc.abstractmethod
     def list_available(self):

watcher/common/loader/default.py

@@ -14,6 +14,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from __future__ import unicode_literals
+
 from oslo_config import cfg
 from oslo_log import log
 from stevedore import driver as drivermanager

watcher/common/loader/loadable.py

@@ -16,10 +16,13 @@
 
 import abc
 
+import six
+
 from watcher.common import service
 
 
-class Loadable(object, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class Loadable(object):
     """Generic interface for dynamically loading a driver/entry point.
 
     This defines the contract in order to let the loader manager inject
@@ -45,7 +48,8 @@ LoadableSingletonMeta = type(
     "LoadableSingletonMeta", (abc.ABCMeta, service.Singleton), {})
 
 
-class LoadableSingleton(object, metaclass=LoadableSingletonMeta):
+@six.add_metaclass(LoadableSingletonMeta)
+class LoadableSingleton(object):
     """Generic interface for dynamically loading a driver as a singleton.
 
     This defines the contract in order to let the loader manager inject

watcher/common/placement_helper.py

@@ -11,7 +11,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from http import HTTPStatus
 from oslo_config import cfg
 from oslo_log import log as logging
 
@@ -54,7 +53,7 @@ class PlacementHelper(object):
         if rp_name:
             url += '?name=%s' % rp_name
         resp = self.get(url)
-        if resp.status_code == HTTPStatus.OK:
+        if resp.status_code == 200:
             json_resp = resp.json()
             return json_resp['resource_providers']
 
@@ -78,7 +77,7 @@ class PlacementHelper(object):
         """
         url = '/resource_providers/%s/inventories' % rp_uuid
         resp = self.get(url)
-        if resp.status_code == HTTPStatus.OK:
+        if resp.status_code == 200:
             json = resp.json()
             return json['inventories']
         msg = ("Failed to get resource provider %(rp_uuid)s inventories. "
@@ -98,7 +97,7 @@ class PlacementHelper(object):
         """
         resp = self.get("/resource_providers/%s/traits" % rp_uuid)
 
-        if resp.status_code == HTTPStatus.OK:
+        if resp.status_code == 200:
             json = resp.json()
             return json['traits']
         msg = ("Failed to get resource provider %(rp_uuid)s traits. "
@@ -119,7 +118,7 @@ class PlacementHelper(object):
         """
         url = '/allocations/%s' % consumer_uuid
         resp = self.get(url)
-        if resp.status_code == HTTPStatus.OK:
+        if resp.status_code == 200:
             json = resp.json()
             return json['allocations']
         msg = ("Failed to get allocations for consumer %(c_uuid). "
@@ -140,7 +139,7 @@ class PlacementHelper(object):
         """
         url = '/resource_providers/%s/usages' % rp_uuid
         resp = self.get(url)
-        if resp.status_code == HTTPStatus.OK:
+        if resp.status_code == 200:
             json = resp.json()
             return json['usages']
         msg = ("Failed to get resource provider %(rp_uuid)s usages. "
@@ -165,7 +164,7 @@ class PlacementHelper(object):
         """
         url = "/allocation_candidates?%s" % resources
         resp = self.get(url)
-        if resp.status_code == HTTPStatus.OK:
+        if resp.status_code == 200:
             data = resp.json()
             return data['provider_summaries']
 

watcher/common/policy.py

@@ -18,7 +18,6 @@
 import sys
 
 from oslo_config import cfg
-from oslo_policy import opts
 from oslo_policy import policy
 
 from watcher.common import exception
@@ -27,12 +26,6 @@ from watcher.common import policies
 _ENFORCER = None
 CONF = cfg.CONF
 
-# TODO(gmann): Remove setting the default value of config policy_file
-# once oslo_policy change the default value to 'policy.yaml'.
-# https://github.com/openstack/oslo.policy/blob/a626ad12fe5a3abd49d70e3e5b95589d279ab578/oslo_policy/opts.py#L49
-DEFAULT_POLICY_FILE = 'policy.yaml'
-opts.set_defaults(CONF, DEFAULT_POLICY_FILE)
-
 
 # we can get a policy enforcer by this init.
 # oslo policy support change policy rule dynamically.

watcher/common/rpc.py

@@ -121,40 +121,22 @@ class RequestContextSerializer(messaging.Serializer):
 def get_client(target, version_cap=None, serializer=None):
     assert TRANSPORT is not None
     serializer = RequestContextSerializer(serializer)
-    return messaging.get_rpc_client(
+    return messaging.RPCClient(TRANSPORT,
-        TRANSPORT,
+                               target,
-        target,
+                               version_cap=version_cap,
-        version_cap=version_cap,
+                               serializer=serializer)
-        serializer=serializer
-    )
 
 
 def get_server(target, endpoints, serializer=None):
     assert TRANSPORT is not None
     access_policy = dispatcher.DefaultRPCAccessPolicy
     serializer = RequestContextSerializer(serializer)
-    return messaging.get_rpc_server(
+    return messaging.get_rpc_server(TRANSPORT,
-        TRANSPORT,
+                                    target,
-        target,
+                                    endpoints,
-        endpoints,
+                                    executor='eventlet',
-        executor='eventlet',
+                                    serializer=serializer,
-        serializer=serializer,
+                                    access_policy=access_policy)
-        access_policy=access_policy
-    )
-
-
-def get_notification_listener(targets, endpoints, serializer=None, pool=None):
-    assert NOTIFICATION_TRANSPORT is not None
-    serializer = RequestContextSerializer(serializer)
-    return messaging.get_notification_listener(
-        NOTIFICATION_TRANSPORT,
-        targets,
-        endpoints,
-        allow_requeue=False,
-        executor='eventlet',
-        pool=pool,
-        serializer=serializer
-    )
 
 
 def get_notifier(publisher_id):

watcher/common/service.py

@@ -21,12 +21,14 @@ from oslo_concurrency import processutils
 from oslo_config import cfg
 from oslo_log import _options
 from oslo_log import log
-import oslo_messaging as messaging
+import oslo_messaging as om
 from oslo_reports import guru_meditation_report as gmr
 from oslo_reports import opts as gmr_opts
 from oslo_service import service
 from oslo_service import wsgi
 
+from oslo_messaging.rpc import dispatcher
+
 from watcher._i18n import _
 from watcher.api import app
 from watcher.common import config
@@ -181,6 +183,11 @@ class Service(service.ServiceBase):
         ]
         self.notification_endpoints = self.manager.notification_endpoints
 
+        self.serializer = rpc.RequestContextSerializer(
+            base.WatcherObjectSerializer())
+
+        self._transport = None
+        self._notification_transport = None
         self._conductor_client = None
 
         self.conductor_topic_handler = None
@@ -194,17 +201,27 @@ class Service(service.ServiceBase):
                 self.notification_topics, self.notification_endpoints
             )
 
+    @property
+    def transport(self):
+        if self._transport is None:
+            self._transport = om.get_rpc_transport(CONF)
+        return self._transport
+
+    @property
+    def notification_transport(self):
+        if self._notification_transport is None:
+            self._notification_transport = om.get_notification_transport(CONF)
+        return self._notification_transport
+
     @property
     def conductor_client(self):
         if self._conductor_client is None:
-            target = messaging.Target(
+            target = om.Target(
                 topic=self.conductor_topic,
                 version=self.API_VERSION,
             )
-            self._conductor_client = rpc.get_client(
+            self._conductor_client = om.RPCClient(
-                target,
+                self.transport, target, serializer=self.serializer)
-                serializer=base.WatcherObjectSerializer()
-            )
         return self._conductor_client
 
     @conductor_client.setter
@@ -212,18 +229,21 @@ class Service(service.ServiceBase):
         self.conductor_client = c
 
     def build_topic_handler(self, topic_name, endpoints=()):
-        target = messaging.Target(
+        access_policy = dispatcher.DefaultRPCAccessPolicy
+        serializer = rpc.RequestContextSerializer(rpc.JsonPayloadSerializer())
+        target = om.Target(
             topic=topic_name,
             # For compatibility, we can override it with 'host' opt
             server=CONF.host or socket.gethostname(),
             version=self.api_version,
         )
-        return rpc.get_server(
+        return om.get_rpc_server(
-            target, endpoints,
+            self.transport, target, endpoints,
-            serializer=rpc.JsonPayloadSerializer()
+            executor='eventlet', serializer=serializer,
-        )
+            access_policy=access_policy)
 
     def build_notification_handler(self, topic_names, endpoints=()):
+        serializer = rpc.RequestContextSerializer(rpc.JsonPayloadSerializer())
         targets = []
         for topic in topic_names:
             kwargs = {}
@@ -231,13 +251,11 @@ class Service(service.ServiceBase):
                 exchange, topic = topic.split('.')
                 kwargs['exchange'] = exchange
             kwargs['topic'] = topic
-            targets.append(messaging.Target(**kwargs))
+            targets.append(om.Target(**kwargs))
-
+        return om.get_notification_listener(
-        return rpc.get_notification_listener(
+            self.notification_transport, targets, endpoints,
-            targets, endpoints,
+            executor='eventlet', serializer=serializer,
-            serializer=rpc.JsonPayloadSerializer(),
+            allow_requeue=False, pool=CONF.host)
-            pool=CONF.host
-        )
 
     def start(self):
         LOG.debug("Connecting to '%s'", CONF.transport_url)

watcher/common/service_manager.py

@@ -15,9 +15,11 @@
 # under the License.
 
 import abc
+import six
 
 
-class ServiceManager(object, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class ServiceManager(object):
 
     @abc.abstractproperty
     def service_name(self):

watcher/common/utils.py

@@ -28,6 +28,7 @@ from oslo_config import cfg
 from oslo_log import log
 from oslo_utils import strutils
 from oslo_utils import uuidutils
+import six
 
 from watcher.common import exception
 
@@ -81,7 +82,7 @@ def safe_rstrip(value, chars=None):
     :return: Stripped value.
 
     """
-    if not isinstance(value, str):
+    if not isinstance(value, six.string_types):
         LOG.warning(
             "Failed to remove trailing character. Returning original object."
             "Supplied object is not a string: %s,", value)
@@ -103,7 +104,7 @@ def is_hostname_safe(hostname):
 
     """
     m = r'^[a-z0-9]([a-z0-9\-]{0,61}[a-z0-9])?$'
-    return (isinstance(hostname, str) and
+    return (isinstance(hostname, six.string_types) and
             (re.match(m, hostname) is not None))
 
 

watcher/conf/applier.py

@@ -43,20 +43,11 @@ APPLIER_MANAGER_OPTS = [
                help='Select the engine to use to execute the workflow'),
 ]
 
-APPLIER_OPTS = [
-    cfg.BoolOpt('rollback_when_actionplan_failed',
-                default=False,
-                help='If set True, the failed actionplan will rollback '
-                     'when executing. Defaule value is False.'),
-]
-
 
 def register_opts(conf):
     conf.register_group(watcher_applier)
     conf.register_opts(APPLIER_MANAGER_OPTS, group=watcher_applier)
-    conf.register_opts(APPLIER_OPTS, group=watcher_applier)
 
 
 def list_opts():
-    return [(watcher_applier, APPLIER_MANAGER_OPTS),
+    return [(watcher_applier, APPLIER_MANAGER_OPTS)]
-            (watcher_applier, APPLIER_OPTS)]

watcher/conf/grafana_client.py

@@ -134,13 +134,7 @@ GRAFANA_CLIENT_OPTS = [
                      "InfluxDB this will be the retention period. "
                      "These queries will need to be constructed using tools "
                      "such as Postman. Example: SELECT cpu FROM {4}."
-                     "cpu_percent WHERE host == '{1}' AND time > now()-{2}s"),
+                     "cpu_percent WHERE host == '{1}' AND time > now()-{2}s")]
-    cfg.IntOpt('http_timeout',
-               min=0,
-               default=60,
-               mutable=True,
-               help='Timeout for Grafana request')
-]
 
 
 def register_opts(conf):

watcher/db/api.py

@@ -18,6 +18,7 @@ Base classes for storage engines
 import abc
 from oslo_config import cfg
 from oslo_db import api as db_api
+import six
 
 _BACKEND_MAPPING = {'sqlalchemy': 'watcher.db.sqlalchemy.api'}
 IMPL = db_api.DBAPI.from_config(cfg.CONF, backend_mapping=_BACKEND_MAPPING,
@@ -29,7 +30,8 @@ def get_instance():
     return IMPL
 
 
-class BaseConnection(object, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class BaseConnection(object):
     """Base class for storage system connections."""
 
     @abc.abstractmethod

watcher/db/purge.py

@@ -15,6 +15,8 @@
 # limitations under the License.
 #
 
+from __future__ import print_function
+
 import collections
 import datetime
 import itertools
@@ -23,6 +25,7 @@ import sys
 from oslo_log import log
 from oslo_utils import strutils
 import prettytable as ptable
+from six.moves import input
 
 from watcher._i18n import _
 from watcher._i18n import lazy_translation_enabled

watcher/db/sqlalchemy/alembic/versions/0f6042416884_add_apscheduler_jobs.py

@@ -6,7 +6,6 @@ Create Date: 2017-03-24 11:21:29.036532
 
 """
 from alembic import op
-from sqlalchemy import inspect
 import sqlalchemy as sa
 
 from watcher.db.sqlalchemy import models
@@ -15,17 +14,8 @@ from watcher.db.sqlalchemy import models
 revision = '0f6042416884'
 down_revision = '001'
 
-def _table_exists(table_name):
-    bind = op.get_context().bind
-    insp = inspect(bind)
-    names = insp.get_table_names()
-    return any(t == table_name for t in names)
-
 
 def upgrade():
-    if _table_exists('apscheduler_jobs'):
-        return
-
     op.create_table(
         'apscheduler_jobs',
         sa.Column('id', sa.Unicode(191, _warn_on_bytestring=False),

watcher/db/sqlalchemy/api.py

@@ -44,11 +44,7 @@ _FACADE = None
 def _create_facade_lazily():
     global _FACADE
     if _FACADE is None:
-        # FIXME(amoralej): Remove autocommit=True (and ideally use of
+        _FACADE = db_session.EngineFacade.from_config(CONF)
-        # LegacyEngineFacade) asap since it's not compatible with SQLAlchemy
-        # 2.0.
-        _FACADE = db_session.EngineFacade.from_config(CONF,
-                                                      autocommit=True)
     return _FACADE
 
 
@@ -282,7 +278,7 @@ class Connection(api.BaseConnection):
             query = model_query(model, session=session)
             query = add_identity_filter(query, id_)
             try:
-                ref = query.with_for_update().one()
+                ref = query.with_lockmode('update').one()
             except exc.NoResultFound:
                 raise exception.ResourceNotFound(name=model.__name__, id=id_)
 
@@ -819,7 +815,7 @@ class Connection(api.BaseConnection):
             query = model_query(models.Action, session=session)
             query = add_identity_filter(query, action_id)
             try:
-                ref = query.with_for_update().one()
+                ref = query.with_lockmode('update').one()
             except exc.NoResultFound:
                 raise exception.ActionNotFound(action=action_id)
 
@@ -904,7 +900,7 @@ class Connection(api.BaseConnection):
             query = model_query(models.ActionPlan, session=session)
             query = add_identity_filter(query, action_plan_id)
             try:
-                ref = query.with_for_update().one()
+                ref = query.with_lockmode('update').one()
             except exc.NoResultFound:
                 raise exception.ActionPlanNotFound(action_plan=action_plan_id)
 

watcher/db/sqlalchemy/models.py

@@ -18,6 +18,7 @@ SQLAlchemy models for watcher service
 
 from oslo_db.sqlalchemy import models
 from oslo_serialization import jsonutils
+import six.moves.urllib.parse as urlparse
 from sqlalchemy import Boolean
 from sqlalchemy import Column
 from sqlalchemy import DateTime
@@ -32,7 +33,7 @@ from sqlalchemy import String
 from sqlalchemy import Text
 from sqlalchemy.types import TypeDecorator, TEXT
 from sqlalchemy import UniqueConstraint
-import urllib.parse as urlparse
+
 from watcher import conf
 
 CONF = conf.CONF

watcher/decision_engine/audit/base.py

@@ -18,6 +18,7 @@
 # limitations under the License.
 #
 import abc
+import six
 
 from oslo_config import cfg
 from oslo_log import log
@@ -35,11 +36,9 @@ CONF = cfg.CONF
 LOG = log.getLogger(__name__)
 
 
-class BaseMetaClass(service.Singleton, abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
-    pass
+@six.add_metaclass(service.Singleton)
-
+class BaseAuditHandler(object):
-
-class BaseAuditHandler(object, metaclass=BaseMetaClass):
 
     @abc.abstractmethod
     def execute(self, audit, request_context):
@@ -58,7 +57,8 @@ class BaseAuditHandler(object, metaclass=BaseMetaClass):
         raise NotImplementedError()
 
 
-class AuditHandler(BaseAuditHandler, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class AuditHandler(BaseAuditHandler):
 
     def __init__(self):
         super(AuditHandler, self).__init__()

watcher/decision_engine/datasources/base.py

@@ -19,8 +19,6 @@ import time
 from oslo_config import cfg
 from oslo_log import log
 
-from watcher.common import exception
-
 CONF = cfg.CONF
 LOG = log.getLogger(__name__)
 
@@ -56,13 +54,6 @@ class DataSourceBase(object):
                       instance_root_disk_size=None,
                       )
 
-    def _get_meter(self, meter_name):
-        """Retrieve the meter from the metric map or raise error"""
-        meter = self.METRIC_MAP.get(meter_name)
-        if meter is None:
-            raise exception.MetricNotAvailable(metric=meter_name)
-        return meter
-
     def query_retry(self, f, *args, **kwargs):
         """Attempts to retrieve metrics from the external service
 
@@ -131,30 +122,6 @@ class DataSourceBase(object):
 
         pass
 
-    @abc.abstractmethod
-    def statistic_series(self, resource=None, resource_type=None,
-                         meter_name=None, start_time=None, end_time=None,
-                         granularity=300):
-        """Retrieves metrics based on the specified parameters over a period
-
-        :param resource: Resource object as defined in watcher models such as
-                         ComputeNode and Instance
-        :param resource_type: Indicates which type of object is supplied
-                              to the resource parameter
-        :param meter_name: The desired metric to retrieve as key from
-                           METRIC_MAP
-        :param start_time: The datetime to start retrieving metrics for
-        :type start_time: datetime.datetime
-        :param end_time: The datetime to limit the retrieval of metrics to
-        :type end_time: datetime.datetime
-        :param granularity: Interval between samples in measurements in
-                            seconds
-        :return: Dictionary of key value pairs with timestamps and metric
-                 values
-        """
-
-        pass
-
     @abc.abstractmethod
     def get_host_cpu_usage(self, resource, period, aggregate,
                            granularity=None):

watcher/decision_engine/datasources/ceilometer.py

@@ -161,7 +161,9 @@ class CeilometerHelper(base.DataSourceBase):
         end_time = datetime.datetime.utcnow()
         start_time = end_time - datetime.timedelta(seconds=int(period))
 
-        meter = self._get_meter(meter_name)
+        meter = self.METRIC_MAP.get(meter_name)
+        if meter is None:
+            raise exception.MetricNotAvailable(metric=meter_name)
 
         if aggregate == 'mean':
             aggregate = 'avg'
@@ -192,12 +194,6 @@ class CeilometerHelper(base.DataSourceBase):
                 item_value *= 10
         return item_value
 
-    def statistic_series(self, resource=None, resource_type=None,
-                         meter_name=None, start_time=None, end_time=None,
-                         granularity=300):
-        raise NotImplementedError(
-            _('Ceilometer helper does not support statistic series method'))
-
     def get_host_cpu_usage(self, resource, period,
                            aggregate, granularity=None):
 

watcher/decision_engine/datasources/gnocchi.py

@@ -23,6 +23,7 @@ from oslo_config import cfg
 from oslo_log import log
 
 from watcher.common import clients
+from watcher.common import exception
 from watcher.decision_engine.datasources import base
 
 CONF = cfg.CONF
@@ -71,7 +72,9 @@ class GnocchiHelper(base.DataSourceBase):
         stop_time = datetime.utcnow()
         start_time = stop_time - timedelta(seconds=(int(period)))
 
-        meter = self._get_meter(meter_name)
+        meter = self.METRIC_MAP.get(meter_name)
+        if meter is None:
+            raise exception.MetricNotAvailable(metric=meter_name)
 
         if aggregate == 'count':
             aggregate = 'mean'
@@ -120,52 +123,6 @@ class GnocchiHelper(base.DataSourceBase):
 
         return return_value
 
-    def statistic_series(self, resource=None, resource_type=None,
-                         meter_name=None, start_time=None, end_time=None,
-                         granularity=300):
-
-        meter = self._get_meter(meter_name)
-
-        resource_id = resource.uuid
-        if resource_type == 'compute_node':
-            resource_id = "%s_%s" % (resource.hostname, resource.hostname)
-            kwargs = dict(query={"=": {"original_resource_id": resource_id}},
-                          limit=1)
-            resources = self.query_retry(
-                f=self.gnocchi.resource.search, **kwargs)
-
-            if not resources:
-                LOG.warning("The {0} resource {1} could not be "
-                            "found".format(self.NAME, resource_id))
-                return
-
-            resource_id = resources[0]['id']
-
-        raw_kwargs = dict(
-            metric=meter,
-            start=start_time,
-            stop=end_time,
-            resource_id=resource_id,
-            granularity=granularity,
-        )
-
-        kwargs = {k: v for k, v in raw_kwargs.items() if k and v}
-
-        statistics = self.query_retry(
-            f=self.gnocchi.metric.get_measures, **kwargs)
-
-        return_value = None
-        if statistics:
-            # measure has structure [time, granularity, value]
-            if meter_name == 'host_airflow':
-                # Airflow from hardware.ipmi.node.airflow is reported as
-                # 1/10 th of actual CFM
-                return_value = {s[0]: s[2]*10 for s in statistics}
-            else:
-                return_value = {s[0]: s[2] for s in statistics}
-
-        return return_value
-
     def get_host_cpu_usage(self, resource, period, aggregate,
                            granularity=300):
 

watcher/decision_engine/datasources/grafana.py

@@ -16,13 +16,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from urllib import parse as urlparse
-
-from http import HTTPStatus
 from oslo_config import cfg
 from oslo_log import log
+import six.moves.urllib.parse as urlparse
 
-from watcher._i18n import _
 from watcher.common import clients
 from watcher.common import exception
 from watcher.decision_engine.datasources import base
@@ -138,13 +135,12 @@ class GrafanaHelper(base.DataSourceBase):
             raise exception.DataSourceNotAvailable(self.NAME)
 
         resp = requests.get(self._base_url + str(project_id) + '/query',
-                            params=params, headers=self._headers,
+                            params=params, headers=self._headers)
-                            timeout=CONF.grafana_client.http_timeout)
+        if resp.status_code == 200:
-        if resp.status_code == HTTPStatus.OK:
             return resp
-        elif resp.status_code == HTTPStatus.BAD_REQUEST:
+        elif resp.status_code == 400:
             LOG.error("Query for metric is invalid")
-        elif resp.status_code == HTTPStatus.UNAUTHORIZED:
+        elif resp.status_code == 401:
             LOG.error("Authorization token is invalid")
         raise exception.DataSourceNotAvailable(self.NAME)
 
@@ -191,12 +187,6 @@ class GrafanaHelper(base.DataSourceBase):
 
         return result
 
-    def statistic_series(self, resource=None, resource_type=None,
-                         meter_name=None, start_time=None, end_time=None,
-                         granularity=300):
-        raise NotImplementedError(
-            _('Grafana helper does not support statistic series method'))
-
     def get_host_cpu_usage(self, resource, period=300,
                            aggregate="mean", granularity=None):
         return self.statistic_aggregation(

watcher/decision_engine/datasources/monasca.py

@@ -21,6 +21,7 @@ import datetime
 from monascaclient import exc
 
 from watcher.common import clients
+from watcher.common import exception
 from watcher.decision_engine.datasources import base
 
 
@@ -89,7 +90,9 @@ class MonascaHelper(base.DataSourceBase):
         stop_time = datetime.datetime.utcnow()
         start_time = stop_time - datetime.timedelta(seconds=(int(period)))
 
-        meter = self._get_meter(meter_name)
+        meter = self.METRIC_MAP.get(meter_name)
+        if meter is None:
+            raise exception.MetricNotAvailable(metric=meter_name)
 
         if aggregate == 'mean':
             aggregate = 'avg'
@@ -118,34 +121,6 @@ class MonascaHelper(base.DataSourceBase):
 
         return cpu_usage
 
-    def statistic_series(self, resource=None, resource_type=None,
-                         meter_name=None, start_time=None, end_time=None,
-                         granularity=300):
-
-        meter = self._get_meter(meter_name)
-
-        raw_kwargs = dict(
-            name=meter,
-            start_time=start_time.isoformat(),
-            end_time=end_time.isoformat(),
-            dimensions={'hostname': resource.uuid},
-            statistics='avg',
-            group_by='*',
-        )
-
-        kwargs = {k: v for k, v in raw_kwargs.items() if k and v}
-
-        statistics = self.query_retry(
-            f=self.monasca.metrics.list_statistics, **kwargs)
-
-        result = {}
-        for stat in statistics:
-            v_index = stat['columns'].index('avg')
-            t_index = stat['columns'].index('timestamp')
-            result.update({r[t_index]: r[v_index] for r in stat['statistics']})
-
-        return result
-
     def get_host_cpu_usage(self, resource, period,
                            aggregate, granularity=None):
         return self.statistic_aggregation(

watcher/decision_engine/goal/base.py

@@ -15,11 +15,13 @@
 # limitations under the License.
 
 import abc
+import six
 
 from watcher.common.loader import loadable
 
 
-class Goal(loadable.Loadable, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class Goal(loadable.Loadable):
 
     def __init__(self, config):
         super(Goal, self).__init__(config)

watcher/decision_engine/goal/efficacy/base.py

@@ -27,8 +27,11 @@ import abc
 import jsonschema
 from oslo_serialization import jsonutils
 
+import six
 
-class EfficacySpecification(object, metaclass=abc.ABCMeta):
+
+@six.add_metaclass(abc.ABCMeta)
+class EfficacySpecification(object):
 
     def __init__(self):
         self._indicators_specs = self.get_indicators_specifications()

watcher/decision_engine/goal/efficacy/indicators.py

@@ -18,6 +18,7 @@ import abc
 import jsonschema
 from jsonschema import SchemaError
 from jsonschema import ValidationError
+import six
 
 from oslo_log import log
 from oslo_serialization import jsonutils
@@ -28,7 +29,8 @@ from watcher.common import exception
 LOG = log.getLogger(__name__)
 
 
-class IndicatorSpecification(object, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class IndicatorSpecification(object):
 
     def __init__(self, name=None, description=None, unit=None, required=True):
         self.name = name

watcher/decision_engine/loading/default.py

@@ -19,6 +19,9 @@
 # limitations under the License.
 #
 
+from __future__ import unicode_literals
+
+
 from watcher.common.loader import default
 
 

watcher/decision_engine/model/base.py

@@ -25,9 +25,11 @@ See: :doc:`../architecture` for more details on this component.
 """
 
 import abc
+import six
 
 
-class Model(object, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class Model(object):
 
     @abc.abstractmethod
     def to_string(self):

watcher/decision_engine/model/collector/base.py

@@ -110,6 +110,7 @@ import time
 
 from oslo_config import cfg
 from oslo_log import log
+import six
 
 from watcher.common import clients
 from watcher.common.loader import loadable
@@ -119,8 +120,8 @@ LOG = log.getLogger(__name__)
 CONF = cfg.CONF
 
 
-class BaseClusterDataModelCollector(loadable.LoadableSingleton,
+@six.add_metaclass(abc.ABCMeta)
-                                    metaclass=abc.ABCMeta):
+class BaseClusterDataModelCollector(loadable.LoadableSingleton):
 
     STALE_MODEL = model_root.ModelRoot(stale=True)
 

watcher/decision_engine/model/collector/cinder.py

@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+import six
+
 from oslo_log import log
 
 from watcher.common import cinder_helper
@@ -150,9 +152,6 @@ class CinderClusterDataModelCollector(base.BaseClusterDataModelCollector):
         if self._audit_scope_handler is None:
             LOG.debug("No audit, Don't Build storage data model")
             return
-        if self._data_model_scope is None:
-            LOG.debug("No audit scope, Don't Build storage data model")
-            return
 
         builder = CinderModelBuilder(self.osc)
         return builder.execute(self._data_model_scope)
@@ -205,7 +204,7 @@ class CinderModelBuilder(base.BaseModelBuilder):
         """Build a storage node from a Cinder storage node
 
         :param node: A storage node
-        :type node: :py:class:`~cinderclient.v3.services.Service`
+        :type node: :py:class:`~cinderclient.v2.services.Service`
         """
         # node.host is formatted as host@backendname since ocata,
         # or may be only host as of ocata
@@ -233,7 +232,7 @@ class CinderModelBuilder(base.BaseModelBuilder):
         """Build a storage pool from a Cinder storage pool
 
         :param pool: A storage pool
-        :type pool: :py:class:`~cinderclient.v3.pools.Pool`
+        :type pool: :py:class:`~cinderclient.v2.pools.Pool`
         :raises: exception.InvalidPoolAttributeValue
         """
         # build up the storage pool.
@@ -287,7 +286,7 @@ class CinderModelBuilder(base.BaseModelBuilder):
         :param instance: Cinder Volume object.
         :return: A volume node for the graph.
         """
-        attachments = [{k: v for k, v in iter(d.items()) if k in (
+        attachments = [{k: v for k, v in six.iteritems(d) if k in (
             'server_id', 'attachment_id')} for d in volume.attachments]
 
         volume_attributes = {

watcher/decision_engine/model/collector/ironic.py

@@ -63,9 +63,6 @@ class BaremetalClusterDataModelCollector(base.BaseClusterDataModelCollector):
         if self._audit_scope_handler is None:
             LOG.debug("No audit, Don't Build Baremetal data model")
             return
-        if self._data_model_scope is None:
-            LOG.debug("No audit scope, Don't Build Baremetal data model")
-            return
 
         builder = BareMetalModelBuilder(self.osc)
         return builder.execute(self._data_model_scope)

watcher/decision_engine/model/collector/nova.py

@@ -184,9 +184,6 @@ class NovaClusterDataModelCollector(base.BaseClusterDataModelCollector):
         if self._audit_scope_handler is None:
             LOG.debug("No audit, Don't Build compute data model")
             return
-        if self._data_model_scope is None:
-            LOG.debug("No audit scope, Don't Build compute data model")
-            return
 
         builder = NovaModelBuilder(self.osc)
         return builder.execute(self._data_model_scope)

watcher/decision_engine/model/element/baremetal_resource.py

@@ -16,12 +16,14 @@
 
 import abc
 
+import six
 
 from watcher.decision_engine.model.element import base
 from watcher.objects import fields as wfields
 
 
-class BaremetalResource(base.Element, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class BaremetalResource(base.Element):
 
     VERSION = '1.0'
 

watcher/decision_engine/model/element/base.py

@@ -21,6 +21,7 @@ import collections
 
 from lxml import etree
 from oslo_log import log
+import six
 
 from watcher.objects import base
 from watcher.objects import fields as wfields
@@ -28,8 +29,9 @@ from watcher.objects import fields as wfields
 LOG = log.getLogger(__name__)
 
 
+@six.add_metaclass(abc.ABCMeta)
 class Element(base.WatcherObject, base.WatcherObjectDictCompat,
-              base.WatcherComparableObject, metaclass=abc.ABCMeta):
+              base.WatcherComparableObject):
 
     # Initial version
     VERSION = '1.0'

watcher/decision_engine/model/element/compute_resource.py

@@ -16,12 +16,14 @@
 
 import abc
 
+import six
 
 from watcher.decision_engine.model.element import base
 from watcher.objects import fields as wfields
 
 
-class ComputeResource(base.Element, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class ComputeResource(base.Element):
 
     VERSION = '1.0'
 

watcher/decision_engine/model/element/storage_resource.py

@@ -16,12 +16,14 @@
 
 import abc
 
+import six
 
 from watcher.decision_engine.model.element import base
 from watcher.objects import fields as wfields
 
 
-class StorageResource(base.Element, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class StorageResource(base.Element):
 
     VERSION = '1.0'
 

watcher/decision_engine/model/model_root.py

@@ -21,6 +21,7 @@ from lxml import etree
 import networkx as nx
 from oslo_concurrency import lockutils
 from oslo_log import log
+import six
 
 from watcher._i18n import _
 from watcher.common import exception
@@ -92,9 +93,9 @@ class ModelRoot(nx.DiGraph, base.Model):
         :param node: :py:class:`~.node.ComputeNode` object or node UUID
         :type node: str or :py:class:`~.instance.Instance`
         """
-        if isinstance(instance, str):
+        if isinstance(instance, six.string_types):
             instance = self.get_instance_by_uuid(instance)
-        if isinstance(node, str):
+        if isinstance(node, six.string_types):
             node = self.get_node_by_uuid(node)
         self.assert_node(node)
         self.assert_instance(instance)
@@ -103,9 +104,9 @@ class ModelRoot(nx.DiGraph, base.Model):
 
     @lockutils.synchronized("model_root")
     def unmap_instance(self, instance, node):
-        if isinstance(instance, str):
+        if isinstance(instance, six.string_types):
             instance = self.get_instance_by_uuid(instance)
-        if isinstance(node, str):
+        if isinstance(node, six.string_types):
             node = self.get_node_by_uuid(node)
 
         self.remove_edge(instance.uuid, node.uuid)
@@ -366,9 +367,9 @@ class StorageModelRoot(nx.DiGraph, base.Model):
         :param pool: :py:class:`~.node.Pool` object or pool name
         :param node: :py:class:`~.node.StorageNode` object or node host
         """
-        if isinstance(pool, str):
+        if isinstance(pool, six.string_types):
             pool = self.get_pool_by_pool_name(pool)
-        if isinstance(node, str):
+        if isinstance(node, six.string_types):
             node = self.get_node_by_name(node)
         self.assert_node(node)
         self.assert_pool(pool)
@@ -382,9 +383,9 @@ class StorageModelRoot(nx.DiGraph, base.Model):
         :param pool: :py:class:`~.node.Pool` object or pool name
         :param node: :py:class:`~.node.StorageNode` object or node name
         """
-        if isinstance(pool, str):
+        if isinstance(pool, six.string_types):
             pool = self.get_pool_by_pool_name(pool)
-        if isinstance(node, str):
+        if isinstance(node, six.string_types):
             node = self.get_node_by_name(node)
 
         self.remove_edge(pool.name, node.host)
@@ -410,9 +411,9 @@ class StorageModelRoot(nx.DiGraph, base.Model):
         :param volume: :py:class:`~.volume.Volume` object or volume UUID
         :param pool: :py:class:`~.node.Pool` object or pool name
         """
-        if isinstance(volume, str):
+        if isinstance(volume, six.string_types):
             volume = self.get_volume_by_uuid(volume)
-        if isinstance(pool, str):
+        if isinstance(pool, six.string_types):
             pool = self.get_pool_by_pool_name(pool)
         self.assert_pool(pool)
         self.assert_volume(volume)
@@ -426,9 +427,9 @@ class StorageModelRoot(nx.DiGraph, base.Model):
         :param volume: :py:class:`~.volume.Volume` object or volume UUID
         :param pool: :py:class:`~.node.Pool` object or pool name
         """
-        if isinstance(volume, str):
+        if isinstance(volume, six.string_types):
             volume = self.get_volume_by_uuid(volume)
-        if isinstance(pool, str):
+        if isinstance(pool, six.string_types):
             pool = self.get_pool_by_pool_name(pool)
 
         self.remove_edge(volume.uuid, pool.name)
@@ -631,7 +632,7 @@ class BaremetalModelRoot(nx.DiGraph, base.Model):
             super(BaremetalModelRoot, self).remove_node(node.uuid)
         except nx.NetworkXError as exc:
             LOG.exception(exc)
-            raise exception.IronicNodeNotFound(uuid=node.uuid)
+            raise exception.IronicNodeNotFound(name=node.uuid)
 
     @lockutils.synchronized("baremetal_model")
     def get_all_ironic_nodes(self):
@@ -643,7 +644,7 @@ class BaremetalModelRoot(nx.DiGraph, base.Model):
         try:
             return self._get_by_uuid(uuid)
         except exception.BaremetalResourceNotFound:
-            raise exception.IronicNodeNotFound(uuid=uuid)
+            raise exception.IronicNodeNotFound(name=uuid)
 
     def _get_by_uuid(self, uuid):
         try:

watcher/decision_engine/model/notification/base.py

@@ -17,9 +17,11 @@
 # limitations under the License.
 
 import abc
+import six
 
 
-class NotificationEndpoint(object, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class NotificationEndpoint(object):
 
     def __init__(self, collector):
         super(NotificationEndpoint, self).__init__()

watcher/decision_engine/model/notification/cinder.py

@@ -14,6 +14,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+import six
+
 from oslo_log import log
 from watcher.common import cinder_helper
 from watcher.common import exception
@@ -159,7 +161,7 @@ class CinderNotification(base.NotificationEndpoint):
                 return 'attachment_id'
 
         attachments = [
-            {_keyReplace(k): v for k, v in iter(d.items())
+            {_keyReplace(k): v for k, v in six.iteritems(d)
                 if k in ('instance_uuid', 'id')}
             for d in data['volume_attachment']
         ]

watcher/decision_engine/model/notification/filtering.py

@@ -19,6 +19,7 @@
 import re
 
 import oslo_messaging as om
+import six
 
 
 class NotificationFilter(om.NotificationFilter):
@@ -80,7 +81,7 @@ class NotificationFilter(om.NotificationFilter):
         elif regex is not None and data is None:
             return True
         elif (regex is not None and
-              isinstance(data, str) and
+              isinstance(data, six.string_types) and
               not regex.match(data)):
             return True
 

watcher/decision_engine/planner/base.py

@@ -45,11 +45,13 @@ See :doc:`../architecture` for more details on this component.
 """
 
 import abc
+import six
 
 from watcher.common.loader import loadable
 
 
-class BasePlanner(loadable.Loadable, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class BasePlanner(loadable.Loadable):
 
     @classmethod
     def get_config_opts(cls):

watcher/decision_engine/scope/base.py

@@ -16,11 +16,13 @@
 #
 
 import abc
+import six
 
 from watcher.common import context
 
 
-class BaseScope(object, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class BaseScope(object):
     """A base class for Scope mechanism
 
     Child of this class is called when audit launches strategy. This strategy

watcher/decision_engine/scoring/base.py

@@ -17,11 +17,13 @@
 # limitations under the License.
 
 import abc
+import six
 
 from watcher.common.loader import loadable
 
 
-class ScoringEngine(loadable.Loadable, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class ScoringEngine(loadable.Loadable):
     """A base class for all the Scoring Engines.
 
     A Scoring Engine is an instance of a data model, to which the learning
@@ -95,7 +97,8 @@ class ScoringEngine(loadable.Loadable, metaclass=abc.ABCMeta):
         return []
 
 
-class ScoringEngineContainer(loadable.Loadable, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class ScoringEngineContainer(loadable.Loadable):
     """A base class for all the Scoring Engines Containers.
 
     A Scoring Engine Container is an abstraction which allows to plugin

watcher/decision_engine/solution/base.py

@@ -56,11 +56,13 @@ Two approaches to dealing with this can be envisaged:
 """
 
 import abc
+import six
 
 from watcher.decision_engine.solution import efficacy
 
 
-class BaseSolution(object, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class BaseSolution(object):
     def __init__(self, goal, strategy):
         """Base Solution constructor
 

watcher/decision_engine/solution/solution_comparator.py

@@ -17,9 +17,11 @@
 # limitations under the License.
 #
 import abc
+import six
 
 
-class BaseSolutionComparator(object, metaclass=abc.ABCMeta):
+@six.add_metaclass(abc.ABCMeta)
+class BaseSolutionComparator(object):
     @abc.abstractmethod
     def compare(self, sol1, sol2):
         raise NotImplementedError()