Propagate image registry regions to publish

And fix the image registry user parameter in publish to be
aligned with other parameters.

Signed-off-by: Andrea Frittoli <andrea.frittoli@uk.ibm.com>

tekton/publish.yaml

@@ -22,6 +22,9 @@ spec:
     - name: imageRegistryRegions
       description: The target image registry regions
       default: "us eu asia"
+    - name: imageRegistryUser
+      description: Username to be used to login to the container registry
+      default: "_json_key"
     - name: releaseAsLatest
       description: Whether to tag and publish this release as Pipelines' latest
       default: "true"
@@ -30,9 +33,6 @@ spec:
       default: linux/amd64,linux/arm,linux/arm64,linux/s390x,linux/ppc64le,windows/amd64
     - name: serviceAccountPath
       description: The name of the service account path within the release-secret workspace
-    - name: registryUser
-      description: Username to be used to login to the container registry
-      default: "_json_key"
   workspaces:
     - name: source
       description: >-
@@ -54,7 +54,7 @@ spec:
       - name: CONTAINER_REGISTRY
         value: "$(params.imageRegistry)/$(params.imageRegistryPath)"
       - name: CONTAINER_REGISTRY_USER
-        value: "$(params.registryUser)"
+        value: "$(params.imageRegistryUser)"
       - name: REGIONS
         value: "$(params.imageRegistryRegions)"
       - name: OUTPUT_RELEASE_DIR
@@ -80,7 +80,7 @@ spec:
       for region in ${REGIONS}
       do
         HOSTNAME=${region}.$(params.imageRegistry)
-        cat ${CONTAINER_REGISTRY_CREDENTIALS} | crane auth login -u _json_key --password-stdin ${HOSTNAME}
+        cat ${CONTAINER_REGISTRY_CREDENTIALS} | crane auth login -u ${CONTAINER_REGISTRY_USER} --password-stdin ${HOSTNAME}
       done
       cp ${DOCKER_CONFIG} /workspace/docker-config.json
 

tekton/release-pipeline.yaml

@@ -166,6 +166,8 @@ spec:
           value: $(params.imageRegistryPath)
         - name: imageRegistryUser
           value: $(params.imageRegistryUser)
+        - name: imageRegistryRegions
+          value: $(params.imageRegistryRegions)
         - name: releaseAsLatest
           value: $(params.releaseAsLatest)
         - name: serviceAccountPath