feat: add JSON output format for Hadolint report

Signed-off-by: Christophe Mathias <christophe.mathias@orange.com>

templates/gitlab-ci-docker.yml

@@ -451,18 +451,20 @@ docker-hadolint:
     - autoconfig_hadolint
     - mkdir -p reports
     - chmod o+rwx reports
-    - hadolint_report_name="hadolint-$(md5sum "$DOCKER_FILE" | cut -d" " -f1).json"
-    # Force one run with tty format in order to have a nice output without failure
-    - hadolint --no-fail $DOCKER_HADOLINT_ARGS $hadolint_config_opts "$DOCKER_FILE"
-    # Make one run with ad hoc output for gitlab integration
-    - hadolint -f gitlab_codeclimate $DOCKER_HADOLINT_ARGS $hadolint_config_opts "$DOCKER_FILE" > "reports/$hadolint_report_name"
+    - dockerfile_hash=$(md5sum "$DOCKER_FILE" | cut -d" " -f1)
+    # Output in Code Climate format (GitLab integration)
+    - hadolint --no-fail -f gitlab_codeclimate $DOCKER_HADOLINT_ARGS $hadolint_config_opts "$DOCKER_FILE" > "reports/hadolint-cc-${dockerfile_hash}.json"
+    # Output in JSON format
+    - hadolint --no-fail -f json $DOCKER_HADOLINT_ARGS $hadolint_config_opts "$DOCKER_FILE" > "reports/hadolint-json-${dockerfile_hash}.json"
+    # las run with console output (with failure)
+    - hadolint $DOCKER_HADOLINT_ARGS $hadolint_config_opts "$DOCKER_FILE"
   artifacts:
     name: "$CI_JOB_NAME artifacts from $CI_PROJECT_NAME on $CI_COMMIT_REF_SLUG"
     expire_in: 1 day
     when: always
     reports:
       codequality:
-        - "reports/hadolint-*.json"
+        - "reports/hadolint-cc-*.json"
     paths:
       - "reports/hadolint-*.json"
   rules: