snapshot tag with commit short sha appended

.gitlab-ci.yml

@@ -44,6 +44,8 @@ verify:
   before_script:
     - export PROJECT_VERSION=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout $MAVEN_CLI_OPTS)
     - export PROJECT_ARTIFACTID=$(mvn help:evaluate -Dexpression=project.artifactId -q -DforceStdout $MAVEN_CLI_OPTS)
+    - export MERGE_REQUEST_TAG="MR-${CI_MERGE_REQUEST_IID}-${PROJECT_VERSION}"
+    - export SNAPSHOT_TAG="${CI_COMMIT_BRANCH}-${PROJECT_VERSION}-${CI_COMMIT_SHORT_SHA}"
     - export NEXUS_IMAGE_PREFIX="docker.ozg-sh.de/${PROJECT_ARTIFACTID}"
 
 # Merge request jobs
@@ -51,7 +53,7 @@ push-merge-request-image-gitlab:
   stage: publish
   extends: .get-version
   script:
-    - export IMAGE_TAGS="${CI_REGISTRY_IMAGE}:MR-${CI_MERGE_REQUEST_IID}-${PROJECT_VERSION}"
+    - export IMAGE_TAGS="${CI_REGISTRY_IMAGE}:${MERGE_REQUEST_TAG}"
     - mvn deploy -Pgitlab-deploy $MAVEN_DEPLOY_CLI_OPTS $MAVEN_CLI_OPTS
   rules:
     - if: $CI_PIPELINE_SOURCE == 'merge_request_event'
@@ -60,7 +62,7 @@ push-merge-request-image-nexus:
   stage: publish
   extends: .get-version
   script:
-    - export IMAGE_TAGS="${NEXUS_IMAGE_PREFIX}:MR-${CI_MERGE_REQUEST_IID}-${PROJECT_VERSION}"
+    - export IMAGE_TAGS="${NEXUS_IMAGE_PREFIX}:${MERGE_REQUEST_TAG}"
     - mvn deploy -Pnexus-deploy $MAVEN_DEPLOY_CLI_OPTS $MAVEN_CLI_OPTS
   rules:
     - if: $CI_PIPELINE_SOURCE == 'merge_request_event'
@@ -70,7 +72,7 @@ push-snapshot-image-gitlab:
   stage: publish
   extends: .get-version
   script:
-    - export IMAGE_TAGS="${CI_REGISTRY_IMAGE}:main-${PROJECT_VERSION},${CI_REGISTRY_IMAGE}:snapshot-latest"
+    - export IMAGE_TAGS="${CI_REGISTRY_IMAGE}:${SNAPSHOT_TAG},${CI_REGISTRY_IMAGE}:snapshot-latest"
     - mvn deploy -Pgitlab-deploy $MAVEN_DEPLOY_CLI_OPTS $MAVEN_CLI_OPTS
   only:
     - main
@@ -79,7 +81,7 @@ push-snapshot-image-nexus:
   stage: publish
   extends: .get-version
   script:
-    - export IMAGE_TAGS="${NEXUS_IMAGE_PREFIX}:main-${PROJECT_VERSION},${NEXUS_IMAGE_PREFIX}:snapshot-latest"
+    - export IMAGE_TAGS="${NEXUS_IMAGE_PREFIX}:${SNAPSHOT_TAG},${NEXUS_IMAGE_PREFIX}:snapshot-latest"
     - mvn deploy -Pnexus-deploy $MAVEN_DEPLOY_CLI_OPTS $MAVEN_CLI_OPTS
   only:
     - main