Add tempest tests to zuul

Add tempest tests to zuul check and gate. This includes two parts of
tests:
- Tests in tempest repo
- Tests in cinder-tempest-plugin

Change-Id: I6ea4d60f41bf0d312360c450e0038bc6f21a44ce
Signed-off-by: Liang Fang <liang.a.fang@intel.com>

.zuul.yaml

@@ -1,8 +1,31 @@
+- job:
+    name: devstack-plugin-open-cas-tempest
+    parent: tempest-full-py3
+    description: |
+      Base integration tests that runs with the open-cas devstack plugin and py3.
+    required-projects:
+      - opendev.org/openstack/cinder-tempest-plugin
+      - opendev.org/openstack/devstack-plugin-open-cas
+    timeout: 7200
+    vars:
+      devstack_localrc:
+        # Volume local cache don't support multiattach
+        ENABLE_VOLUME_MULTIATTACH: False
+      tempest_plugins:
+        - cinder-tempest-plugin
+      devstack_plugins:
+        devstack-plugin-open-cas: https://opendev.org/openstack/devstack-plugin-open-cas
+      tox_envlist: all
+      tempest_test_regex: (^tempest\.(api|scenario)|(^cinder_tempest_plugin))
+      tempest_test_blacklist: '{{ ansible_user_dir }}/{{ zuul.projects["opendev.org/openstack/tempest"].src_dir }}/tools/tempest-integrated-gate-storage-blacklist.txt'
+
 - project:
     check:
       jobs:
         - openstack-tox-bashate
+        - devstack-plugin-open-cas-tempest
 
     gate:
       jobs:
         - openstack-tox-bashate
+        - devstack-plugin-open-cas-tempest

devstack/plugin.sh

@@ -8,12 +8,19 @@ OPENCAS_CACHE_SIZE=${OPENCAS_CACHE_SIZE:-1048576}
 
 function git_clone_opencas {
     cd $OPENCAS_REPO_DIR
-    git_clone $OPENCAS_REPO_URL $OPENCAS_REPO_DIR $OPENCAS_REPO_BRANCH
+    git clone $OPENCAS_REPO_URL $OPENCAS_REPO_DIR/open-cas-linux -b $OPENCAS_REPO_BRANCH
     cd open-cas-linux
     git submodule update --init
 }
 
 function compile_opencas {
+    if is_ubuntu; then
+        install_package linux-headers-$(uname -r) gcc
+    elif is_fedora; then
+        install_package kernel-headers.x86_64 kernel-devel.x86_64 gcc
+    else
+        exit_distro_not_supported "installing packages"
+    fi
     sudo ./configure
     make
 }
@@ -73,6 +80,11 @@ if [[ "$1" == "stack" && "$2" == "pre-install" ]]; then
     install_opencas
     echo_summary "create cache instance"
     create_cache_instance
+elif [[ "$1" == "stack" && "$2" == "post-config" ]]; then
+    # configure open-cas in /path/to/nova-cpu.conf
+    iniset $NOVA_CPU_CONF compute volume_local_cache_driver opencas
+    iniset $NOVA_CPU_CONF compute volume_local_cache_instance_ids 1
+    iniset $TEMPEST_CONFIG volume-feature-enabled volume_local_cache True
 fi
 
 if [[ "$1" == "unstack" ]]; then