Have a way to disable Glance v1 in devstack

As part of the process of deprecating Glance's V1, the glance team would
like to start testing V2-only environments. Therefore, this change
provides a way to force other services to use V2.

Change-Id: I87e77d07964eac01e9a796817cbc88bd6e59c721

lib/cinder

@@ -342,6 +342,10 @@ function configure_cinder {
         iniset $CINDER_CONF DEFAULT glance_ca_certificates_file $SSL_BUNDLE_FILE
     fi
 
+    if [ "$GLANCE_V1_ENABLED" != "True" ]; then
+        iniset $CINDER_CONF DEFAULT glance_api_version 2
+    fi
+
     # Register SSL certificates if provided
     if is_ssl_enabled_service cinder; then
         ensure_certificates CINDER

lib/glance

@@ -57,6 +57,7 @@ GLANCE_SCHEMA_JSON=$GLANCE_CONF_DIR/schema-image.json
 GLANCE_SWIFT_STORE_CONF=$GLANCE_CONF_DIR/glance-swift-store.conf
 GLANCE_GLARE_CONF=$GLANCE_CONF_DIR/glance-glare.conf
 GLANCE_GLARE_PASTE_INI=$GLANCE_CONF_DIR/glance-glare-paste.ini
+GLANCE_V1_ENABLED=${GLANCE_V1_ENABLED:-True}
 
 if is_ssl_enabled_service "glance" || is_service_enabled tls-proxy; then
     GLANCE_SERVICE_PROTOCOL="https"
@@ -134,6 +135,12 @@ function configure_glance {
         iniset $GLANCE_API_CONF DEFAULT disk_formats "ami,ari,aki,vhd,vmdk,raw,qcow2,vdi,iso,ploop"
     fi
 
+    # NOTE(flaper87): To uncomment as soon as all services consuming Glance are
+    # able to consume V2 entirely.
+    if [ "$GLANCE_V1_ENABLED" != "True" ]; then
+        iniset $GLANCE_API_CONF DEFAULT enable_v1_api False
+    fi
+
     # Store specific configs
     iniset $GLANCE_API_CONF glance_store filesystem_store_datadir $GLANCE_IMAGE_DIR/
     if is_service_enabled g-glare; then

lib/tempest

@@ -292,6 +292,9 @@ function configure_tempest {
 
     # Image Features
     iniset $TEMPEST_CONFIG image-feature-enabled deactivate_image True
+    if [ "$GLANCE_V1_ENABLED" != "True" ]; then
+        iniset $TEMPEST_CONFIG image-feature-enabled api_v1 False
+    fi
 
     # Compute
     iniset $TEMPEST_CONFIG compute ssh_user ${DEFAULT_INSTANCE_USER:-cirros} # DEPRECATED