estetään image karkaaminen docker.io kun parametria ei ole asetettu (#33)

Co-authored-by: moilanik <niko.moilanen@tietoevry.com>
Reviewed-on: #33

.gitea/workflows/ci-container-build-push.yml

@@ -33,7 +33,9 @@ jobs:
           DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME || github.actor }}
           DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
         run: |
-          REGISTRY="${DOCKER_REGISTRY:?DOCKER_REGISTRY not set in conf}"
+          if [ -z "${DOCKER_REGISTRY}" ]; then echo "ERROR: DOCKER_REGISTRY not set in conf"; exit 1; fi
+          REGISTRY="${DOCKER_REGISTRY}"
+          REGISTRY_HOST="${REGISTRY%%/*}"
           DOCKERFILE="${{ inputs.dockerfile_path }}"
           IMAGE_NAME="${{ inputs.image_name }}"
           TAG="${{ inputs.tag }}"
@@ -46,8 +48,6 @@ jobs:
             -f "${DOCKERFILE}" \
             -t "${IMAGE_NAME}:${TAG}" .
 
-          REGISTRY_HOST="${REGISTRY%%/*}"
-
           FULL_IMAGE="${REGISTRY}/${IMAGE_NAME}:${TAG}"
           echo "Pushing ${FULL_IMAGE} ..."