Add Devstack install support for searchlightclient

Provides devstack plugin support for python-searchlightclient

To Test this on devstack see review comments.

Change-Id: I9050ac6720dece11e855665b7f17a4717728e722
Partially-Implements: blueprint openstack-client-search-initial-plugin

devstack/plugin.sh

@@ -175,6 +175,12 @@ function install_searchlight {
     ${TOP_DIR}/pkg/elasticsearch.sh install
 }
 
+# install_searchlightclient - Collect source and prepare
+function install_searchlightclient {
+    git_clone $SEARCHLIGHTCLIENT_REPO $SEARCHLIGHTCLIENT_DIR $SEARCHLIGHTCLIENT_BRANCH
+    setup_develop $SEARCHLIGHTCLIENT_DIR
+}
+
 # start_searchlight - Start running processes, including screen
 function start_searchlight {
     if is_service_enabled searchlight-api; then
@@ -208,6 +214,9 @@ if is_service_enabled searchlight; then
     if [[ "$1" == "stack" && "$2" == "install" ]]; then
         echo_summary "Installing Searchlight"
         install_searchlight
+
+        echo_summary "Installing Searchlight client"
+        install_searchlightclient
     elif [[ "$1" == "stack" && "$2" == "post-config" ]]; then
         echo_summary "Configuring Searchlight"
         configure_searchlight

devstack/settings

@@ -1,4 +1,9 @@
 # Devstack settings
 
+#Searchlight client settings
+SEARCHLIGHTCLIENT_DIR=$DEST/python-searchlightclient
+SEARCHLIGHTCLIENT_REPO=${SEARCHLIGHTCLIENT_REPO:-${GIT_BASE}/openstack/python-searchlightclient.git}
+SEARCHLIGHTCLIENT_BRANCH=${SEARCHLIGHTCLIENT_BRANCH:-master}
+
 # we have to add searchlight to enabled services for screen_it to work
 enable_service searchlight