ci: split dev image publishing by registry

.gitlab-ci.yml

@@ -0,0 +1,51 @@
+stages:
+  - docker
+
+workflow:
+  rules:
+    - if: '$CI_COMMIT_BRANCH == "dev"'
+    - when: never
+
+variables:
+  DOCKER_BUILDKIT: "1"
+  DOCKER_DRIVER: overlay2
+  DOCKER_HOST: tcp://docker:2375
+  DOCKER_TLS_CERTDIR: ""
+  GIT_DEPTH: "0"
+
+docker-dev:
+  stage: docker
+  image: docker:27.5.1
+  services:
+    - name: docker:27.5.1-dind
+      alias: docker
+  interruptible: true
+  parallel:
+    matrix:
+      - TARGET: backend
+        IMAGE: remnawave-minishop-backend
+      - TARGET: worker
+        IMAGE: remnawave-minishop-worker
+      - TARGET: frontend
+        IMAGE: remnawave-minishop-frontend
+  before_script:
+    - apk add --no-cache git
+    - test -n "$DOCKERHUB_USERNAME"
+    - test -n "$DOCKERHUB_TOKEN"
+    - echo "$DOCKERHUB_TOKEN" | docker login --username "$DOCKERHUB_USERNAME" --password-stdin
+    - docker buildx create --name gitlab-builder --use
+  script:
+    - git fetch origin dev --tags
+    - |
+      if [ "$(git rev-parse HEAD)" != "$(git rev-parse origin/dev)" ]; then
+        echo "A newer dev commit exists; skipping Docker Hub build for $IMAGE."
+        exit 0
+      fi
+    - docker buildx build --load --platform linux/amd64 --file deploy/docker/Dockerfile --target "$TARGET" --build-arg "CI_COMMIT_REF_NAME=$CI_COMMIT_REF_NAME" --tag "3252a8/$IMAGE:dev" .
+    - git fetch origin dev --tags
+    - |
+      if [ "$(git rev-parse HEAD)" != "$(git rev-parse origin/dev)" ]; then
+        echo "A newer dev commit exists; skipping Docker Hub push for $IMAGE."
+        exit 0
+      fi
+    - docker push "3252a8/$IMAGE:dev"