Switch to nox

Like Zuul, replace our usage of tox with nox.

Change-Id: I18e2dffaf737f0b57020d50c1c18397ee5dc1362

.zuul.yaml

@@ -230,24 +230,24 @@
           DIB_SIMPLE_INIT_NETWORKMANAGER: '1'
 
 - job:
-    name: nodepool-tox-py38
+    name: nodepool-nox-py38
     description: |
       Nodepool unit tests with ZooKeeper running
-    parent: tox-py38
-    pre-run: playbooks/nodepool-tox/pre.yaml
-    vars: &nodepool_tox_vars
-      tox_environment:
+    parent: nox-py38
+    pre-run: playbooks/nodepool-nox/pre.yaml
+    vars: &nodepool_nox_vars
+      nox_environment:
         NODEPOOL_ZK_CA: /opt/zookeeper/ca/certs/cacert.pem
         NODEPOOL_ZK_CERT: /opt/zookeeper/ca/certs/client.pem
         NODEPOOL_ZK_KEY: /opt/zookeeper/ca/keys/clientkey.pem
 
 - job:
-    name: nodepool-tox-py311
+    name: nodepool-nox-py311
     description: |
       Nodepool unit tests with ZooKeeper running
-    parent: tox-py311
-    pre-run: playbooks/nodepool-tox/pre.yaml
-    vars: *nodepool_tox_vars
+    parent: nox-py311
+    pre-run: playbooks/nodepool-nox/pre.yaml
+    vars: *nodepool_nox_vars
     nodeset: ubuntu-jammy
 
 - project:
@@ -257,11 +257,11 @@
       jobs:
         - opendev-buildset-registry
         - nodepool-build-image
-        - zuul-tox-docs
-        - tox-pep8
-        - nodepool-tox-py38:
+        - zuul-nox-docs
+        - nox-linters
+        - nodepool-nox-py38:
             nodeset: ubuntu-focal
-        - nodepool-tox-py311
+        - nodepool-nox-py311
         - nodepool-functional-container-openstack-release
         - nodepool-functional-k8s
         - nodepool-functional-openshift
@@ -272,11 +272,11 @@
     gate:
       jobs:
         - nodepool-upload-image
-        - zuul-tox-docs
-        - tox-pep8
-        - nodepool-tox-py38:
+        - zuul-nox-docs
+        - nox-linters
+        - nodepool-nox-py38:
             nodeset: ubuntu-focal
-        - nodepool-tox-py311
+        - nodepool-nox-py311
         - nodepool-functional-k8s
         - nodepool-functional-openshift
         - zuul-quick-start:
@@ -291,7 +291,7 @@
     release:
       jobs:
         - opendev-release-python
-        - zuul-publish-tox-docs
+        - zuul-publish-nox-docs
         - upload-docker-image:
             timeout: *image_build_timeout
             secrets:

noxfile.py

@@ -0,0 +1,130 @@
+# Copyright 2022 Acme Gating, LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+import os
+
+import nox
+
+
+nox.options.error_on_external_run = True
+nox.options.reuse_existing_virtualenvs = True
+nox.options.sessions = ["tests-3", "linters"]
+
+
+def set_env(session, var, default):
+    session.env[var] = os.environ.get(var, default)
+
+
+def set_standard_env_vars(session):
+    set_env(session, 'OS_LOG_CAPTURE', '1')
+    set_env(session, 'OS_STDERR_CAPTURE', '1')
+    set_env(session, 'OS_STDOUT_CAPTURE', '1')
+    set_env(session, 'OS_TEST_TIMEOUT', '360')
+    set_env(session, 'SQLALCHEMY_WARN_20', '1')
+    # Set STATSD env variables so that statsd code paths are tested.
+    set_env(session, 'STATSD_HOST', 'localhost')
+    set_env(session, 'STATSD_PORT', '8125')
+    session.env['PYTHONWARNINGS'] = ','.join([
+        'always::DeprecationWarning:zuul.driver.sql.sqlconnection',
+        'always::DeprecationWarning:tests.base',
+        'always::DeprecationWarning:tests.unit.test_database',
+        'always::DeprecationWarning:zuul.driver.sql.alembic.env',
+        'always::DeprecationWarning:zuul.driver.sql.alembic.script',
+    ])
+
+
+@nox.session(python='3')
+def bindep(session):
+    set_standard_env_vars(session)
+    set_env(session, 'SQLALCHEMY_WARN_20', '1')
+    session.install('bindep')
+    session.run('bindep', 'test')
+
+
+@nox.session(python='3')
+def cover(session):
+    set_standard_env_vars(session)
+    session.env['PYTHON'] = 'coverage run --source nodepool --parallel-mode'
+    session.install('-r', 'requirements.txt',
+                    '-r', 'test-requirements.txt')
+    session.install('-e', '.')
+    session.run('stestr', '--test-path', './nodepool/tests/unit',
+                'run', '--no-subunit-trace')
+    session.run('coverage', 'combine')
+    session.run('coverage', 'html', '-d', 'cover')
+    session.run('coverage', 'xml', '-o', 'cover/coverage.xml')
+
+
+@nox.session(python='3')
+def docs(session):
+    set_standard_env_vars(session)
+    session.install('-r', 'requirements.txt',
+                    '-r', 'doc/requirements.txt')
+    session.install('-e', '.')
+    session.run('sphinx-build', '-E', '-W', '-d', 'doc/build/doctrees',
+                '-b', 'html', 'doc/source/', 'doc/build/html')
+
+
+@nox.session(python='3')
+def linters(session):
+    set_standard_env_vars(session)
+    session.install('flake8')
+    session.run('flake8', 'nodepool')
+
+
+@nox.session(python='3')
+def tests(session):
+    set_standard_env_vars(session)
+    session.install('-r', 'requirements.txt',
+                    '-r', 'test-requirements.txt')
+    session.install('-e', '.')
+    session.run('stestr', '--test-path', './nodepool/tests/unit',
+                'run',  '--no-subunit-trace',
+                *session.posargs)
+    session.run('stestr', 'slowest')
+
+
+@nox.session(python='3')
+def functional_kubernetes(session):
+    set_standard_env_vars(session)
+    session.install('-r', 'requirements.txt',
+                    '-r', 'test-requirements.txt')
+    session.install('-e', '.')
+    session.run('stestr',
+                '--test-path', './nodepool/tests/functional/kubernetes',
+                'run',  '--no-subunit-trace',
+                *session.posargs)
+    session.run('stestr', 'slowest')
+
+
+@nox.session(python='3')
+def functional_openshift(session):
+    set_standard_env_vars(session)
+    session.install('-r', 'requirements.txt',
+                    '-r', 'test-requirements.txt')
+    session.install('-e', '.')
+    session.run('stestr',
+                '--test-path', './nodepool/tests/functional/openshift',
+                'run',  '--no-subunit-trace',
+                *session.posargs)
+    session.run('stestr', 'slowest')
+
+
+@nox.session(python='3')
+def venv(session):
+    set_standard_env_vars(session)
+    session.install('-r', 'requirements.txt',
+                    '-r', 'test-requirements.txt')
+    session.install('-e', '.')
+    session.run(*session.posargs)

playbooks/nodepool-functional-k8s/pre.yaml

@@ -3,6 +3,6 @@
     - role: bindep
     - role: ensure-zookeeper
       zookeeper_use_tls: true
-    - role: ensure-tox
+    - role: ensure-nox
     - role: ensure-kubernetes
       ensure_kubernetes_type: microk8s

playbooks/nodepool-functional-k8s/run.yaml

@@ -1,8 +1,8 @@
 - hosts: all
   roles:
-    - role: tox
-      tox_envlist: functional_kubernetes
-      tox_environment:
+    - role: nox
+      nox_session: functional_kubernetes
+      nox_environment:
         NODEPOOL_ZK_CA: /opt/zookeeper/ca/certs/cacert.pem
         NODEPOOL_ZK_CERT: /opt/zookeeper/ca/certs/client.pem
         NODEPOOL_ZK_KEY: /opt/zookeeper/ca/keys/clientkey.pem

playbooks/nodepool-functional-openshift/pre.yaml

@@ -14,7 +14,7 @@
     - role: bindep
     - role: ensure-zookeeper
       zookeeper_use_tls: true
-    - role: ensure-tox
+    - role: ensure-nox
   tasks:
     # NOTE(ianw) 2022-09-07 :
     # Shipped packages do not work and we need to use this statically

playbooks/nodepool-functional-openshift/run.yaml

@@ -9,9 +9,9 @@
           oc login -u developer -p developer --insecure-skip-tls-verify=true
           https://{{ hostvars['cluster']['ansible_hostname'] }}:8443
   roles:
-    - role: tox
-      tox_envlist: functional_openshift
-      tox_environment:
+    - role: nox
+      nox_session: functional_openshift
+      nox_environment:
         NODEPOOL_ZK_CA: /opt/zookeeper/ca/certs/cacert.pem
         NODEPOOL_ZK_CERT: /opt/zookeeper/ca/certs/client.pem
         NODEPOOL_ZK_KEY: /opt/zookeeper/ca/keys/clientkey.pem

setup.cfg

@@ -39,3 +39,10 @@ nodepool_base =
     yappi
     objgraph
     python-logstash-async
+
+[flake8]
+# These are ignored intentionally in zuul projects;
+# please don't submit patches that solely correct them or enable them.
+ignore = E124,E125,E129,E402,E741,W503,W504
+show-source = True
+exclude = .venv,.tox,dist,doc,build,*.egg

tox.ini

@@ -60,10 +60,3 @@ commands = stestr --test-path ./nodepool/tests/functional/kubernetes run --no-su
 [testenv:functional_openshift]
 commands = stestr --test-path ./nodepool/tests/functional/openshift run --no-subunit-trace {posargs}
            stestr slowest
-
-[flake8]
-# These are ignored intentionally in zuul projects;
-# please don't submit patches that solely correct them or enable them.
-ignore = E124,E125,E129,E402,E741,W503,W504
-show-source = True
-exclude = .venv,.tox,dist,doc,build,*.egg