[train][goal] Define new 'zaqar-tempest-swift-ipv6' job

As part of Train community goal 'Support IPv6-Only Deployments and Testing'[1],
we need to define the integration job which deploy services
on IPv6 and perform testing to make sure service listen and communicate
over IPv6 properly.

Zaqar has legacy zuul jobs so base zuulv3 IPv6 job 'devstack-ipv6' and
'devstack-tempest-ipv6' cannot be used and we have to copy the whole
run.yaml to set the IPv6 setting and run the IPv6 verification
script via post_test_hook.

This commit adds the new job 'zaqar-tempest-swift-ipv6'
run on gate and set the required IPv6 setting'.

Change-Id: I9aece13783a061c4214157c3f7cfc9cc9f2a3f96
Story: #2005477
Task: #35941

.zuul.yaml

@@ -69,6 +69,11 @@
     vars:
       database_backend: swift
 
+- job:
+    name: zaqar-tempest-swift-ipv6
+    parent: zaqar-tempest-swift
+    run: playbooks/legacy/tempest-devstack-zaqar-base/run-ipv6.yaml
+
 - job:
     name: zaqar-tox-integration
     parent: openstack-tox
@@ -125,6 +130,7 @@
         - zaqar-grenade-mongodb
         - zaqar-grenade-redis
         - zaqar-grenade-swift
+        - zaqar-tempest-swift-ipv6
         # TripleO jobs that deploy Zaqar.
         # Note we don't use a project-template here, so it's easier
         # to disable voting on one specific job if things go wrong.
@@ -142,5 +148,6 @@
         - zaqar-tempest-mongodb
         - zaqar-tempest-redis
         - zaqar-tempest-swift
+        - zaqar-tempest-swift-ipv6
         - tripleo-ci-centos-7-scenario002-standalone
         - heat-functional-convg-mysql-lbaasv2

devstack/plugin.sh

@@ -92,7 +92,7 @@ function configure_zaqar {
 
     # Enable pooling by default for now
     iniset $ZAQAR_CONF DEFAULT admin_mode True
-    iniset $ZAQAR_CONF 'drivers:transport:websocket' bind $ZAQAR_SERVICE_HOST
+    iniset $ZAQAR_CONF 'drivers:transport:websocket' bind $(ipv6_unquote $ZAQAR_SERVICE_HOST)
     iniset $ZAQAR_CONF 'drivers:transport:websocket' port $ZAQAR_WEBSOCKET_PORT
     iniset $ZAQAR_CONF drivers transport websocket
 

playbooks/legacy/tempest-devstack-zaqar-base/run-ipv6.yaml

@@ -0,0 +1,72 @@
+- hosts: all
+  name: Tempest Devstack Zaqar Base
+  tasks:
+
+    - name: Ensure legacy workspace directory
+      file:
+        path: '{{ ansible_user_dir }}/workspace'
+        state: directory
+
+    - shell:
+        cmd: |
+          set -e
+          set -x
+          cat > clonemap.yaml << EOF
+          clonemap:
+            - name: openstack/devstack-gate
+              dest: devstack-gate
+          EOF
+          /usr/zuul-env/bin/zuul-cloner -m clonemap.yaml --cache-dir /opt/git \
+              https://opendev.org \
+              openstack/devstack-gate
+        executable: /bin/bash
+        chdir: '{{ ansible_user_dir }}/workspace'
+      environment: '{{ zuul | zuul_legacy_vars }}'
+
+    - shell:
+        cmd: |
+          set -e
+          set -x
+          cat << 'EOF' >>"/tmp/dg-local.conf"
+          [[local|localrc]]
+          enable_plugin zaqar https://opendev.org/openstack/zaqar
+           # Enable Zaqar Tempest plugin
+          TEMPEST_PLUGINS='/opt/stack/new/zaqar-tempest-plugin'
+          SERVICE_IP_VERSION=6
+          SERVICE_HOST=""
+
+          EOF
+        executable: /bin/bash
+        chdir: '{{ ansible_user_dir }}/workspace'
+      environment: '{{ zuul | zuul_legacy_vars }}'
+
+    - shell:
+        cmd: |
+          set -e
+          set -x
+          export PROJECTS="openstack/python-zaqarclient $PROJECTS"
+          export PYTHONUNBUFFERED=true
+          export ENABLED_SERVICES=tempest
+          export DEVSTACK_GATE_TEMPEST_REGEX="zaqar_tempest_plugin.tests"
+          export DEVSTACK_GATE_TEMPEST=0
+          export DEVSTACK_GATE_USE_PYTHON3=True
+
+          function gate_hook {
+              cd /opt/stack/new/zaqar/devstack/gate
+              ./gate_hook.sh tempest "{{ database_backend }}"
+          }
+
+          export PROJECTS="openstack/zaqar-tempest-plugin $PROJECTS"
+          export -f gate_hook
+
+          function post_test_hook {
+              cd $BASE/new/tempest/tools
+              ./verify-ipv6-only-deployments.sh
+          }
+          export -f post_test_hook
+
+          cp devstack-gate/devstack-vm-gate-wrap.sh ./safe-devstack-vm-gate-wrap.sh
+          ./safe-devstack-vm-gate-wrap.sh
+        executable: /bin/bash
+        chdir: '{{ ansible_user_dir }}/workspace'
+      environment: '{{ zuul | zuul_legacy_vars }}'