Switch to molecule for testing

Molecule is the defacto testing tool for ansible roles. Switch to it to
make it easier for users to test.

Change-Id: I881e895877c9702e62c4415d48b0f33f34f7487b
Depends-On: https://review.openstack.org/593369
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

.yamllint

@@ -0,0 +1,10 @@
+extends: default
+
+rules:
+  braces:
+    max-spaces-inside: 1
+    level: error
+  brackets:
+    max-spaces-inside: 1
+    level: error
+  line-length: disable

.zuul.yaml

@@ -1,3 +1,4 @@
+---
 - job:
     name: ansible-role-nodepool-base
     pre-run: tests/playbooks/pre.yaml
@@ -7,7 +8,6 @@
       - tests/collect-logs.yaml
     roles:
       - zuul: openstack/ansible-role-nodepool
-      - zuul: openstack/zuul-jobs
 
 # Testing for nodepool_install_method: pip
 - job:
@@ -69,6 +69,7 @@
         - ansible-role-nodepool-src-ubuntu-bionic
         - ansible-role-nodepool-src-ubuntu-xenial
         - tox-linters
+        - windmill-tox-molecule
     gate:
       jobs:
         - ansible-role-nodepool-fedora-latest
@@ -78,3 +79,4 @@
         - ansible-role-nodepool-src-ubuntu-bionic
         - ansible-role-nodepool-src-ubuntu-xenial
         - tox-linters
+        - windmill-tox-molecule

bindep.txt

@@ -1,10 +1,5 @@
 # This is a cross-platform list tracking distribution packages needed by tests;
 # see http://docs.openstack.org/infra/bindep/ for additional information.
 
-git
+docker.io [test platform:dpkg]
-libffi-devel [platform:rpm]
+docker [test platform:fedora]
-libffi-dev [platform:dpkg]
-libselinux-python [platform:rpm]
-libssl-dev [platform:dpkg]
-openssl-devel [platform:rpm]
-python2-dnf [platform:fedora]

molecule/default/Dockerfile.j2

@@ -0,0 +1,9 @@
+# Molecule managed
+
+{% if item.registry is defined %}
+FROM {{ item.registry.url }}/{{ item.image }}
+{% else %}
+FROM {{ item.image }}
+{% endif %}
+
+RUN apt-get update && apt-get install -y python sudo bash ca-certificates python-pip python3-pip && apt-get clean;

molecule/default/molecule.yml

@@ -0,0 +1,34 @@
+---
+dependency:
+  name: galaxy
+driver:
+  name: docker
+lint:
+  name: yamllint
+platforms:
+  - name: ubuntu-bionic
+    image: ubuntu:bionic
+provisioner:
+  name: ansible
+  config_options:
+    ssh_connection:
+      pipelining: true
+  inventory:
+    group_vars:
+      all:
+        nodepool_service_nodepool_builder_manage: false
+        nodepool_service_nodepool_launcher_manage: false
+  lint:
+    name: ansible-lint
+  log: true
+  playbooks:
+    converge: ../../tests/playbooks/run.yaml
+scenario:
+  name: default
+verifier:
+  name: testinfra
+  directory: ../tests
+  options:
+    verbose: true
+  lint:
+    name: flake8

molecule/tests/conftest.py

@@ -0,0 +1,27 @@
+# Copyright 2018 Red Hat, Inc.
+#
+# 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 pytest
+
+
+@pytest.fixture
+def platform_docker(host):
+    return host.file('/.dockerenv').exists
+
+
+@pytest.fixture(autouse=True)
+def skip_platform_docker(request, platform_docker):
+    marker = request.node.get_marker('skip_if_docker')
+    if marker and platform_docker:
+        pytest.skip('Skipping docker')

molecule/tests/test_role.py

@@ -12,6 +12,8 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
+import pytest
+
 
 def test_nodepool_user(host):
     user = host.user('nodepool')
@@ -62,6 +64,15 @@ def test_nodepool_images_directory(host):
     assert f.mode == 0o755
 
 
+def test_nodepool_logs_directory(host):
+    f = host.file('/var/log/nodepool')
+    assert f.exists
+    assert f.is_directory
+    assert f.user == 'nodepool'
+    assert f.group == 'nodepool'
+    assert f.mode == 0o755
+
+
 def test_nodepool_builder_logging_config(host):
     f = host.file('/etc/nodepool/builder-logging.conf')
     assert f.exists
@@ -71,14 +82,34 @@ def test_nodepool_builder_logging_config(host):
     assert f.mode == 0o644
 
 
-def test_nodepool_builder_service(host):
+def test_nodepool_builder_service_config(host):
     f = host.file('/etc/systemd/system/nodepool-builder.service')
     assert f.exists
     assert f.is_file
     assert f.user == 'root'
     assert f.group == 'root'
     assert f.mode == 0o644
+    del f
 
+    f = host.file('/etc/systemd/system/nodepool-builder.service.d')
+    assert f.exists
+    assert f.is_directory
+    assert f.user == 'root'
+    assert f.group == 'root'
+    assert f.mode == 0o755
+    del f
+
+    f = host.file(
+        '/etc/systemd/system/nodepool-builder.service.d/override.conf')
+    assert f.exists
+    assert f.is_file
+    assert f.user == 'root'
+    assert f.group == 'root'
+    assert f.mode == 0o644
+
+
+@pytest.mark.skip_if_docker()
+def test_nodepool_builder_service(host):
     service = host.service('nodepool-builder')
     assert service.is_running
     assert service.is_enabled
@@ -93,14 +124,34 @@ def test_nodepool_launcher_logging_config(host):
     assert f.mode == 0o644
 
 
-def test_nodepool_launcher_service(host):
+def test_nodepool_launcher_service_config(host):
     f = host.file('/etc/systemd/system/nodepool-launcher.service')
     assert f.exists
     assert f.is_file
     assert f.user == 'root'
     assert f.group == 'root'
     assert f.mode == 0o644
+    del f
 
+    f = host.file('/etc/systemd/system/nodepool-launcher.service.d')
+    assert f.exists
+    assert f.is_directory
+    assert f.user == 'root'
+    assert f.group == 'root'
+    assert f.mode == 0o755
+    del f
+
+    f = host.file(
+        '/etc/systemd/system/nodepool-launcher.service.d/override.conf')
+    assert f.exists
+    assert f.is_file
+    assert f.user == 'root'
+    assert f.group == 'root'
+    assert f.mode == 0o644
+
+
+@pytest.mark.skip_if_docker()
+def test_nodepool_launcher_service(host):
     service = host.service('nodepool-launcher')
     assert service.is_running
     assert service.is_enabled

templates/etc/nodepool/nodepool.yaml

@@ -1,6 +1,7 @@
 # This file is generated by Ansible
 #  DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
 #
+---
 images-dir: /opt/nodepool/images
 
 zookeeper-servers:

test-requirements.txt

@@ -1,3 +1,3 @@
-ansible-lint
+ara
-hacking<0.11,>=0.10
+docker
-junit2html
+molecule

tests/collect-logs.yaml

@@ -21,7 +21,6 @@
       delegate_to: "{{ inventory_hostname }}"
       with_items:
         - "{{ ansible_user_dir }}/{{ zuul.project.src_dir }}/junit.xml"
-        - "{{ ansible_user_dir }}/{{ zuul.project.src_dir }}/junit.xml.html"
 
     - name: Prepare nodepool log files
       become: yes

tests/playbooks/post.yaml

@@ -1,17 +1,8 @@
 - hosts: all
   tasks:
-    - block:
     - name: Run testinfra validation
       include_role:
         name: tox
       vars:
         tox_envlist: testinfra
         tox_install_siblings: false
-      always:
-      - name: Run junit2html
-        include_role:
-          name: tox
-        vars:
-          tox_envlist: venv
-          tox_extra_args: -vv junit2html junit.xml
-          tox_install_siblings: false

tools/test-setup.sh

@@ -0,0 +1,21 @@
+#!/bin/bash -ex
+# Copyright 2018 Red Hat, Inc.
+#
+# 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.
+
+if ! [ $(getent group docker) ]; then
+    sudo groupadd docker
+fi
+sudo gpasswd -a ${USER} docker
+sudo service docker restart

tox.ini

@@ -17,10 +17,8 @@ commands=
   sphinx-build -b html doc/source doc/build/html
 
 [testenv:testinfra]
-deps =
-  testinfra
 commands =
-  pytest --sudo --junit-xml junit.xml tests/test_role.py
+  pytest --junit-xml junit.xml --sudo --verbose molecule/tests
 
 [testenv:venv]
 commands = {posargs}
@@ -34,16 +32,12 @@ builtins = _
 exclude=.venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build
 
 [testenv:linters]
-setenv =
-  ANSIBLE_ROLES_PATH = ..
-whitelist_externals = bash
 commands =
-  # PEP8 Lint Check
+  molecule lint
-  flake8
+
-  # Ansible Lint Check
+[testenv:molecule]
-  bash -c "find . -not -path '*/\.*' -type f -regex '.*.y[a]?ml' -print0 | \
+sitepackages = True
-    xargs -t -n1 -0 ansible-lint"
+setenv =
-  # Ansible Syntax Check
+  ANSIBLE_CALLBACK_PLUGINS = {envsitepackagesdir}/ara/plugins/callbacks
-  bash -c "find tests -type f -regex '.*.y[a]?ml' -print | xargs -t -n1 \
+commands =
-    ansible-playbook --syntax-check -i tests/inventory \
+  molecule test
-    -e rolename=$(basename $(pwd)) > /dev/null"