Add engine-config role (#49)

Fix #49

roles/ovirt-engine-config/README.md

@@ -0,0 +1,63 @@
+oVirt engine config
+===================
+
+This role allows tune installed engine using ``engine-config`` CLI tool.
+
+
+Requirements
+------------
+
+oVirt installed and running.
+
+
+Role Variables
+--------------
+
+You can specify options one by one.
+
+```
+ovirt_engine_config:
+  -
+    key: "option name"
+    value: "option value"
+    version: desired-version
+```
+
+Or specify set of options in property file.
+This way is preferable when you want to set passwords.
+
+```
+ovirt_engine_config_property_file: "properties content"
+```
+
+
+Dependencies
+------------
+
+None
+
+
+Example Playbook
+----------------
+
+```yaml
+---
+hosts: engine
+  remote_user: root
+  vars:
+  ovirt_engine_config:
+    -
+      key: "EnableMACAntiSpoofingFilterRules"
+      value: false
+      version: "general"
+  roles:
+    -
+      role: "ovirt_engine_config"
+```
+
+
+Author Information
+------------------
+
+Lukas Bednar
+[email protected]

roles/ovirt-engine-config/meta/main.yml

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+---
+galaxy_info:
+  author: "Lukas Bednar"
+  description: "oVirt engine config tool"
+  company: "Red Hat"
+  license: "GPLv3"
+  min_ansible_version: 1.9
+  platforms:
+    - name: EL
+      versions:
+        - all
+  galaxy_tags:
+    - installer

roles/ovirt-engine-config/tasks/main.yml

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+---
+- name: Tune oVirt engine with engine-config, version specific
+  shell: "engine-config -s {{ item.key }}='{{ item.value }}' --cver={{ item.version }}"
+  with_items: "{{ ovirt_engine_config | list }}"
+  when: ovirt_engine_config is defined and item.version != "general"
+
+- name: Tune oVirt engine with engine-config, regardless version
+  shell: "engine-config -s {{ item.key }}='{{ item.value }}'"
+  with_items: "{{ ovirt_engine_config | list }}"
+  when: ovirt_engine_config is defined and item.version == "general"
+
+- name: Copy property file to engine
+  copy:
+    content: "{{ ovirt_engine_config_property_file }}"
+    dest: "/tmp/ovirt_engine_config.properties"
+  when: ovirt_engine_config_property_file is defined
+
+- name: Tune oVirt engine with engine-config; from property file
+  shell: "engine-config --properties=/tmp/ovirt_engine_config.properties"
+  when: ovirt_engine_config_property_file is defined
+
+# oVirt engine restart is required
+- name: restart of ovirt-engine service
+  service:
+    name: ovirt-engine
+    state: restarted
+
+- name: check health status of page
+  uri:
+    url: "http://localhost/ovirt-engine/services/health"
+    status_code: 200
+  register: health_page
+  retries: 12
+  delay: 10
+  until: health_page|success