CIRCLECI: push containers with latest tag when build master git branch

When using master branch, the quay.io images are reference as master.
The operator team wants to have the name as latest, so all components
can have the same naming.

FIX https://issues.redhat.com/browse/THREESCALE-7251

Signed-off-by: Eloy Coto <eloy.coto@acalustra.com>

.circleci/config.yml

@@ -146,7 +146,12 @@ jobs:
       - run: make test-runtime-image gateway-logs --keep-going
       - login-docker:
           command: |
-            IMAGE_NAME="apicast:${CIRCLE_TAG:-${CIRCLE_BRANCH}}"
+            IMAGE_TAG="${CIRCLE_TAG:-${CIRCLE_BRANCH}}"
+            if [ "${IMAGE_TAG}" == "master" ]
+            then
+              IMAGE_TAG="latest"
+            fi
+            IMAGE_NAME="apicast:${IMAGE_TAG}"
             docker tag apicast-runtime-image ${IMAGE_NAME}
             make push
       - cleanup-docker
@@ -174,7 +179,12 @@ jobs:
 
       - login-docker:
           command: |
-            IMAGE_NAME="apicast:${CIRCLE_TAG:-${CIRCLE_BRANCH}}-builder"
+            IMAGE_TAG="${CIRCLE_TAG:-${CIRCLE_BRANCH}}"
+            if [ "${IMAGE_TAG}" == "master-builder" ]
+            then
+              IMAGE_TAG="latest-builder"
+            fi
+            IMAGE_NAME="apicast:${IMAGE_TAG}"
             docker tag apicast-builder-image ${IMAGE_NAME}
             make push