Test retagging pipeline

.gitlab-ci.yml

+
+stages:
+- build
+- tag
+
+build:
+  stage: build
+  allow_failure: false
+  image:
+    name: gcr.io/kaniko-project/executor:v1.20.0-debug
+    entrypoint: [""]
+  rules:
+    - if: $CI_COMMIT_TAG
+  script:
+    - echo "{\"auths\":{\"$CI_REGISTRY\":{\"auth\":\"$(printf "%s:%s" "${CI_REGISTRY_USER}" "${CI_REGISTRY_PASSWORD}" | base64 | tr -d '\n')\"}}}" > /kaniko/.docker/config.json
+    - /kaniko/executor
+      --context "${CI_PROJECT_DIR}"
+      --dockerfile "${CI_PROJECT_DIR}/Dockerfile"
+      --destination "${CI_REGISTRY_IMAGE}:${CI_COMMIT_TAG}"
+
+tag-latest:
+  stage: tag
+  image: docker:24.0.7
+  rules:
+    - if: $CI_COMMIT_TAG
+      when: manual
+  script:
+  - docker buildx imagetools --tag $CI_REGISTRY_IMAGE:latest $CI_REGISTRY_IMAGE:$CI_COMMIT_TAG 
+
+tag-major:
+  stage: tag
+  image: docker:24.0.7
+  rules:
+    - if: $CI_COMMIT_TAG
+      when: manual
+  script:
+  - export newtag=$(echo $CI_COMMIT_TAG | cut -d. -f 1)
+  - docker buildx imagetools --tag $CI_REGISTRY_IMAGE:$newtag $CI_REGISTRY_IMAGE:$CI_COMMIT_TAG 
+
+tag-minor:
+  stage: tag
+  image: docker:24.0.7
+  rules:
+    - if: $CI_COMMIT_TAG
+      when: manual
+  script:
+  - export newtag=$(echo $CI_COMMIT_TAG | cut -d. -f 1-2)
+  - docker buildx imagetools --tag $CI_REGISTRY_IMAGE:$newtag $CI_REGISTRY_IMAGE:$CI_COMMIT_TAG 

Dockerfile

+FROM python:3.11