xci: playbooks: Simplify scenario overrides mechanism

Now that releng-xci does not have any internal scenarios anymore, we can
simplify the way we plug scenarios to XCI. We keep cloning scenarios in
the cache directory but we also allow users to pass a special
'xci_scenarios_overrides' variable similar to the
'opnfv_scenario_requirements.yml' file to allow them to override
specific keys of the dictionaries. This can be used by Jenkins to test
incoming changes by altering the defaults values. For example, when
we want to test a Gerrit change we can create a file called foobar.yml
with the following contents

xci_scenarios_overrides:
  - scenario: os-odl-sfc
      version: 9fa5400012e02408b416eb7bd26307e7d179abce
      refspec: refs/changes/79/55879/7

and load it using

XCI_ANSIBLE_PARAMS="-e @foobar.yml"

This will make XCI checkout the refspec that we want instead of the
default version.

Change-Id: Ida49910b4c79b843582ddd70c00063fe9bc90dd4
Signed-off-by: Markos Chandras <mchandras@suse.de>

1 files changed, 16 insertions, 50 deletions

diff --git a/xci/playbooks/get-opnfv-scenario-requirements.yml b/xci/playbooks/get-opnfv-scenario-requirements.yml
index af97ceb2..c05d06c0 100644
--- a/xci/playbooks/get-opnfv-scenario-requirements.yml
+++ b/xci/playbooks/get-opnfv-scenario-requirements.yml
@@ -31,15 +31,21 @@
       loop_control:
         label: "{{ item[0].scenario }}"
 
-    - name: Create scenario directories
-      file:
-        path: "{{ role_path_default }}/{{ item.scenario }}"
-        state: directory
-      with_items: "{{ scenarios }}"
+    - name: Update scenarios with local overrides
+      set_fact:
+          scenarios: >
+            {%- for z in xci_scenarios_overrides -%}
+              {%- for x in scenarios if x.scenario == z.scenario  -%}
+                {%- set _ = x.update(z) -%}
+              {%- endfor -%}
+            {%- endfor -%}
+            {{- scenarios -}}
+      with_items: "{{ xci_scenarios_overrides }}"
       loop_control:
         label: "{{ item.scenario }}"
+      when: xci_scenarios_overrides is defined
 
-    - name: Clone git repos (with git)
+    - name: Clone git repos
       git:
         repo: "{{ item.src }}"
         dest: "{{ scenario_path_default }}/{{ item.scenario | default(item.src | basename) }}"
@@ -47,8 +53,6 @@
         refspec: "{{ item.refspec | default(omit) }}"
         update: true
         force: true
-      when:
-        - item.scm == "git" or item.scm is undefined
       with_items: "{{ scenarios }}"
       register: git_clone
       until: git_clone | success
@@ -57,52 +61,14 @@
       loop_control:
         label: "{{ item.scenario }}"
 
-    - name: Check that scenarios exist
-      stat:
-        path: "{{ scenario_path_default }}/{{ item.scenario }}/{{ item.role }}"
-      register: scenarios_list_exists
+    - name: Plug in the scenario Ansible roles to XCI
+      synchronize:
+        src: "{{ scenario_path_default }}/{{ item.scenario }}/{{ item.role }}/"
+        dest: "{{ role_path_default }}/{{ item.role | basename }}"
       with_items: "{{ scenarios }}"
       loop_control:
         label: "{{ item.scenario }}"
 
-    - name: Plug in the scenario to XCI
-      synchronize:
-        src: "{{ scenario_path_default }}/{{ item.item.scenario }}/{{ item.item.role }}/"
-        dest: "{{ role_path_default }}/{{ item.item.role | basename }}"
-      when: item.stat.exists
-      with_items: "{{ scenarios_list_exists.results }}"
-      loop_control:
-        label: "{{ item.item.scenario }}"
-
-    - name: Synchronize local changes to scenarios' master branch
-      synchronize:
-        src: "{{ xci_path }}/xci/scenarios/{{ item.item.scenario }}/{{ item.item.role | replace('xci/scenarios/' ~ item.item.scenario ~ '/', '') }}/"
-        dest: "{{ role_path_default }}/{{ item.item.role | basename }}"
-        archive: no
-        times: no
-        recursive: yes
-        checksum: yes
-        owner: yes
-        group: yes
-        perms: yes
-        links: yes
-      failed_when: false
-      when:
-        - item.stat.exists
-        - item.item.version == 'master'
-      with_items: "{{ scenarios_list_exists.results }}"
-      loop_control:
-        label: "{{ item.item.scenario }}"
-
-    - name: Plug in the scenario to XCI (fallback)
-      synchronize:
-        src: "{{ xci_path }}/{{ item.item.role }}/"
-        dest: "{{ role_path_default }}/{{ item.item.role | basename }}"
-      when: not item.stat.exists
-      with_items: "{{ scenarios_list_exists.results }}"
-      loop_control:
-        label: "{{ item.item.scenario }}"
-
     - name: Gather information about the selected {{ deploy_scenario }} scenario
       set_fact:
         deploy_scenario: "{{ item }}"