New module docker_plugin (#95)

* New module docker-plugin with integration_tests

* Fix sanity test

* Changes made as per the reviewer suggested

* Fix check-mode and test directory

* Fix Sanity

* fix integration

* fix integration

* fix integration

* fix integration

tests/integration/targets/docker_plugin/tasks/main.yaml

@@ -0,0 +1,24 @@
+- name: Create random name prefix
+  set_fact:
+    name_prefix: "cvmfs/overlay2-graphdriver"
+    plugin_names: []
+
+- debug:
+    msg: "Using name prefix {{ name_prefix }}"
+
+- block:
+  - include_tasks: run-test.yml
+    with_fileglob:
+    - "tests/*.yml"
+
+  always:
+  - name: "Make sure plugin is removed"
+    docker_plugin:
+      plugin_name: "{{ item }}"
+      state: absent
+    with_items: "{{ plugin_names }}"
+
+  when: docker_py_version is version('1.10.0', '>=') and docker_api_version is version('1.20', '>=')
+
+- fail: msg="Too old docker / docker-py version to run docker_plugin tests!"
+  when: not(docker_py_version is version('1.10.0', '>=') and docker_api_version is version('1.20', '>=')) and (ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6)

tests/integration/targets/docker_plugin/tasks/run-test.yml

@@ -0,0 +1,3 @@
+---
+- name: "Loading tasks from {{ item }}"
+  include_tasks: "{{ item }}"

tests/integration/targets/docker_plugin/tasks/tests/basic.yml

@@ -0,0 +1,80 @@
+---
+- name: Registering plugin name
+  set_fact:
+    plugin_name: "{{ name_prefix }}"
+
+- name: Registering container name
+  set_fact:
+    plugin_names: "{{ plugin_names + [plugin_name] }}"
+
+############ basic test ############
+####################################
+
+- name: Create a plugin
+  docker_plugin:
+    plugin_name: "{{ plugin_name }}"
+    state: present
+  register: create_1
+
+- name: Create a plugin (Idempotent)
+  docker_plugin:
+    plugin_name: "{{ plugin_name }}"
+    state: present
+  register: create_2
+
+- name: Enable a plugin
+  docker_plugin:
+    plugin_name: "{{ plugin_name }}"
+    state: enable
+  register: create_3
+
+- name: Enable a plugin (Idempotent)
+  docker_plugin:
+    plugin_name: "{{ plugin_name }}"
+    state: enable
+  register: create_4
+
+- name: Disable a plugin
+  docker_plugin:
+    plugin_name: "{{ plugin_name }}"
+    state: disable
+  register: absent_1
+
+- name: Disable a plugin (Idempotent)
+  docker_plugin:
+    plugin_name: "{{ plugin_name }}"
+    state: disable
+  register: absent_2
+
+- name: Remove a plugin
+  docker_plugin:
+    plugin_name: "{{ plugin_name }}"
+    state: absent
+  register: absent_3
+
+- name: Remove a plugin (Idempotent)
+  docker_plugin:
+    plugin_name: "{{ plugin_name }}"
+    state: absent
+  register: absent_4
+
+- assert:
+    that:
+    - create_1 is changed
+    - create_2 is not changed
+    - create_3 is changed
+    - create_4 is not changed
+    - absent_1 is changed
+    - absent_2 is not changed
+    - absent_3 is changed
+    - absent_4 is not changed
+
+############ Plugin_Options ############
+########################################
+# Integration-Test with plugin_options is in TODO-List
+
+- name: Cleanup
+  docker_plugin:
+    plugin_name: "{{ plugin_name }}"
+    state: absent
+    force_remove: true