Add zuul_task_manager to expose control of tasks

There might be a time were we only want run the pre task, so rather
then copying the code into another modules, just allow the user to
override the task list that runs.

Change-Id: I97a40294ac3332bcce20ca4e3458c9988816c6c7
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

defaults/main.yaml

@@ -12,6 +12,13 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 ---
+# tasks/main.yaml
+zuul_task_manager:
+  - pre
+  - install
+  - config
+  - service
+
 # tasks/config.yaml
 zuul_user_name: zuul
 zuul_user_group: zuul

tasks/install.yaml

@@ -19,6 +19,7 @@
 
 # NOTE(pabelanger): This needs to be here for now, since we need python-pip.
 - name: Ensure EPEL is enabled.
+  become: yes
   package:
     name: epel-release
     state: installed
@@ -26,6 +27,7 @@
         ansible_os_family == 'RedHat'
 
 - name: Ensure build dependencies are installed.
+  become: yes
   package:
     name: "{{ item }}"
     state: installed
@@ -37,6 +39,7 @@
 # TODO(pabelanger): Remove once https://review.openstack.org/#/c/316387/ has
 # been merged.
 - name: Install missing pip dependencies
+  become: yes
   pip:
     name: "{{ item }}"
   with_items:

tasks/install/git.yaml

@@ -13,11 +13,13 @@
 # under the License.
 ---
 - name: Git clone zuul.
+  become: yes
   git:
     dest: "{{ zuul_git_dest }}"
     repo: "{{ zuul_git_uri }}"
     version: "{{ zuul_git_version }}"
 
 - name: Pip install zuul from local git repo.
+  become: yes
   pip:
     name: "file://{{ zuul_git_dest }}"

tasks/install/pip.yaml

@@ -13,11 +13,13 @@
 # under the License.
 ---
 - name: Install zuul using pip.
+  become: yes
   pip:
     name: zuul
   when: zuul_pip_version is none
 
 - name: Install zuul using pip.
+  become: yes
   pip:
     name: zuul
     version: "{{ zuul_pip_version }}"

tasks/main.yaml

@@ -15,13 +15,7 @@
 - name: Include OS-specific variables.
   include_vars: "{{ ansible_os_family }}.yaml"
 
-- include: pre.yaml
-  become: yes
-
-- include: install.yaml
-  become: yes
-
-- include: config.yaml
-
-- include: service.yaml
-  become: yes
+- include: "{{ zuul_task }}.yaml"
+  with_items: "{{ zuul_task_manager }}"
+  loop_control:
+    loop_var: zuul_task

tasks/service.yaml

@@ -73,6 +73,7 @@
   when: zuul_file_zuul_server_service_src is not defined
 
 - name: Copy zuul service config into place.
+  become: yes
   copy:
     dest: "{{ zuul_file_zuul_service_config_dest }}"
     group: "{{ zuul_file_zuul_service_config_group }}"
@@ -81,6 +82,7 @@
     src: "{{ zuul_file_zuul_service_config_src }}"
 
 - name: Copy zuul-launcher service into place.
+  become: yes
   copy:
     dest: "{{ zuul_file_zuul_launcher_service_dest }}"
     group: "{{ zuul_file_zuul_launcher_service_group }}"
@@ -89,6 +91,7 @@
     src: "{{ zuul_file_zuul_launcher_service_src }}"
 
 - name: Copy zuul-merger service into place.
+  become: yes
   copy:
     dest: "{{ zuul_file_zuul_merger_service_dest }}"
     group: "{{ zuul_file_zuul_merger_service_group }}"
@@ -97,6 +100,7 @@
     src: "{{ zuul_file_zuul_merger_service_src }}"
 
 - name: Copy zuul-server service into place.
+  become: yes
   copy:
     dest: "{{ zuul_file_zuul_server_service_dest }}"
     group: "{{ zuul_file_zuul_server_service_group }}"
@@ -105,6 +109,7 @@
     src: "{{ zuul_file_zuul_server_service_src }}"
 
 - name: Enable zuul-launcher service.
+  become: yes
   service:
     enabled: "{{ zuul_service_zuul_launcher_enabled }}"
     name: "{{ zuul_service_zuul_launcher_name }}"
@@ -113,6 +118,7 @@
   when: zuul_service_zuul_launcher_manage
 
 - name: Enable zuul-merger service.
+  become: yes
   service:
     enabled: "{{ zuul_service_zuul_merger_enabled }}"
     name: "{{ zuul_service_zuul_merger_name }}"
@@ -121,6 +127,7 @@
   when: zuul_service_zuul_merger_manage
 
 - name: Enable zuul-server service.
+  become: yes
   service:
     enabled: "{{ zuul_service_zuul_server_enabled }}"
     name: "{{ zuul_service_zuul_server_name }}"