Add requirements for jobboard drivers

As Octavia allows to use RedisTaskFlowDriver or
ZookeeperTaskFlowDriver we should install python clients that
allows to work with redis and zookeeper backends.

Story: 2007892

Change-Id: I7312c8c1057618e909339aa7a4dfeb836f4b8f33

devstack/plugin.sh

@@ -9,7 +9,11 @@ set -ex
 GET_PIP_CACHE_LOCATION=/opt/stack/cache/files/get-pip.py
 
 function octavia_install {
-    setup_develop $OCTAVIA_DIR
+    if [[ ${OCTAVIA_ENABLE_AMPHORAV2_JOBBOARD} == True ]]; then
+        setup_develop $OCTAVIA_DIR redis
+    else
+        setup_develop $OCTAVIA_DIR
+    fi
     if [ $OCTAVIA_NODE == 'main' ] || [ $OCTAVIA_NODE == 'standalone' ] ; then
         if ! [ "$DISABLE_AMP_IMAGE_BUILD" == 'True' ]; then
             if [[ ${DISTRO} =~ (rhel|centos) ]]; then
@@ -243,7 +247,6 @@ function install_redis {
 
     start_service redis
 
-    pip_install_gr redis
 }
 
 function uninstall_redis {
@@ -257,7 +260,6 @@ function uninstall_redis {
 
     stop_service redis
 
-    pip_unistall redis
 }
 
 function octavia_configure {

doc/source/install/install-amphorav2.rst

@@ -28,6 +28,8 @@ Also to monitor progress on taskflow jobs amphorav2 provider uses
 jobboard. As jobboard backend could be used Redis or Zookeeper key-value
 storages. Operator should chose the one that is more preferable for specific
 cloud. The default is Redis.
+Key-values storage clients should be install with extras [zookeeper] or [redis]
+during installation of octavia packages.
 
 1. Create the database, complete these steps:
 

lower-constraints.txt

@@ -54,6 +54,7 @@ jmespath==0.9.3
 jsonpatch==1.21
 jsonpointer==2.0
 jsonschema==3.2.0
+kazoo==2.6.0
 keystoneauth1==3.4.0
 keystonemiddleware==4.17.0
 kombu==4.1.0
@@ -129,6 +130,7 @@ python-novaclient==9.1.0
 python-subunit==1.0.0
 pytz==2018.3
 PyYAML==3.12
+redis==2.10.0
 repoze.lru==0.7
 requests==2.14.2
 requests-mock==1.2.0
@@ -172,4 +174,5 @@ WebTest==2.0.29
 Werkzeug==0.14.1
 wrapt==1.10.11
 WSME==0.8.0
+zake==0.1.6
 python-cinderclient==3.3.0

setup.cfg

@@ -106,3 +106,12 @@ oslo.policy.enforcer =
     octavia = octavia.common.policy:get_no_context_enforcer
 oslo.middleware.healthcheck =
     octavia_db_check = octavia.api.healthcheck.healthcheck_plugins:OctaviaDBHealthcheck
+
+[extras]
+# Required in case of AmphoraV2 redis jobboard is used
+redis =
+    redis>=2.10.0
+# Required in case of AmphoraV2 zookeeper jobboard is used
+zookeeper =
+  kazoo>=2.6.0 # Apache-2.0
+  zake>=0.1.6 # Apache-2.0