ci: clean up

.gitlab-ci.yml

 variables:
   DOCKER_TLS_CERTDIR: "" # HACK: see https://gitlab.com/gitlab-org/gitlab-runner/issues/4501
-  DOCKER_IMAGE: "docker:20.10.12"
 
 stages:
   - setup
@@ -8,7 +7,9 @@ stages:
   - build
   - deploy
 
-#==[ Node jobs templates ]======================================================
+# TODO: maybe stup some notifications as a last stage?
+
+#==[ JOB TEMPLATES ]============================================================
 
 .node-job: &node-job
   image: node:16-alpine
@@ -42,7 +43,9 @@ stages:
     - cd backend
     - npm ci --cache .npm --prefer-offline
 
-#==[ Frontent cache ]===========================================================
+#==[ SETUP STAGE ]==============================================================
+
+#--[ Frontend ]-----------------------------------------------------------------
 
 cache-fe-node-job:
   extends: .fe-node-job
@@ -50,7 +53,7 @@ cache-fe-node-job:
   script:
     - echo "Done!"
 
-#==[ Backend cache ]============================================================
+#--[ Backend ]------------------------------------------------------------------
 
 cache-be-node-job:
   extends: .be-node-job
@@ -58,7 +61,9 @@ cache-be-node-job:
   script:
     - echo "Done!"
 
-#==[ Frontend checks ]==========================================================
+#==[ CHECK STAGE ]==============================================================
+
+#--[ Frontend ]-----------------------------------------------------------------
 
 .check-fe-node-job: &check-fe-node-job
   extends: .fe-node-job
@@ -81,7 +86,7 @@ test-fe-node-job:
   script:
     - npm run test
 
-#==[ Backend checks ]===========================================================
+#--[ Backend ]------------------------------------------------------------------
 
 .check-be-node-job: &check-be-node-job
   extends: .be-node-job
@@ -104,12 +109,39 @@ test-be-node-job:
   script:
     - npm run test
 
-#==[ Backend build ]============================================================
+#==[ BUILD STAGE ]==============================================================
+
+#--[ Frontend ]-----------------------------------------------------------------
+
+.fe-build-job:
+  image: node:16-alpine
+  stage: build
+  tags:
+    - commul
+  cache:
+    - key:
+        files:
+          - frontend/package-lock.json
+      paths:
+        - frontend/node_modules
+  script:
+    - cd frontend
+    - npm install
+    - npm run build
+  artifacts:
+    paths:
+      - frontend/dist/
+    # TODO: set expiration in docker registry too
+    expire_in: 1 week
+  only:
+    - tags
+    - development
+
+#--[ Backend ]------------------------------------------------------------------
 
 # TODO: cache docker layers
-# TODO: build ts
 .be-build-job:
-  image: $DOCKER_IMAGE
+  image: docker:20.10.12
   stage: build
   tags:
     - commul
@@ -133,110 +165,86 @@ test-be-node-job:
     - tags
     - development
 
-#==[ Backend deployment ]=======================================================
+#==[ DEPLOY STAGE ]=============================================================
 
-.be-deploy-job:
+#--[ Frontend ]-----------------------------------------------------------------
+
+.fe-deploy-job:
   image: alpine:latest
   stage: deploy
   needs:
-    - job: be-build-job
-      artifacts: false
+    - job: fe-build-job
+      artifacts: true
   tags:
     - commul
-  variables:
-    IMAGE_NAME: $CI_REGISTRY_IMAGE/backend
   before_script:
-    - ./ci/install-kubectl-on-alpine.sh
+    - ./ci/install-butler-on-alpine.sh
   script:
-    - kubectl set image deployment/${K8S_DEPLOYMENT} oetzi=${IMAGE_NAME}:${CI_COMMIT_SHA} --namespace=${K8S_NAMESPACE}
+    - >
+      butler push
+      frontend/dist
+      eurac/$GAME_NAME:html5
+      --userversion ${CI_COMMIT_TAG:-$CI_COMMIT_SHORT_SHA}
 
-.be-prd-deploy-job:
-  extends: .be-deploy-job
+.fe-prd-deploy-job:
+  extends: .fe-deploy-job
   environment:
-    name: production/backend
+    name: production/frontend
     deployment_tier: production
-    url: https://kommul.eurac.edu/oetzi
+    url: https://eurac.itch.io/oetzi
   variables:
-    K8S_NAMESPACE: kommul
-    K8S_DEPLOYMENT: oetzi-webserver-deployment
+    GAME_NAME: oetzi
   only:
     - tags
 
-.be-stg-deploy-job:
-  extends: .be-deploy-job
+.fe-stg-deploy-job:
+  extends: .fe-deploy-job
   environment:
-    name: staging/backend
+    name: staging/frontend
     deployment_tier: staging
-    url: https://kommul-dev.eurac.edu/oetzi
+    url: https://eurac.itch.io/oetzi-staging
   variables:
-    K8S_NAMESPACE: kommul-dev
-    K8S_DEPLOYMENT: oetzi-webserver-deployment
-  only:
-    - development
-
-#==[ Frontend build ]===========================================================
-
-.fe-build-job:
-  image: node:16-alpine
-  stage: build
-  tags:
-    - commul
-  cache:
-    - key:
-        files:
-          - frontend/package-lock.json
-      paths:
-        - frontend/node_modules
-  script:
-    - cd frontend
-    - npm install
-    - npm run build
-  artifacts:
-    paths:
-      - frontend/dist/
-    # TODO: set expiration in docker registry too
-    expire_in: 1 week
+    GAME_NAME: oetzi-staging
   only:
-    - tags
     - development
 
-#==[ Frontend deployment ]======================================================
+#--[ Backend ]------------------------------------------------------------------
 
-.fe-deploy-job:
+.be-deploy-job:
   image: alpine:latest
   stage: deploy
   needs:
-    - job: fe-build-job
-      artifacts: true
+    - job: be-build-job
+      artifacts: false
   tags:
     - commul
+  variables:
+    IMAGE_NAME: $CI_REGISTRY_IMAGE/backend
   before_script:
-    - ./ci/install-butler-on-alpine.sh
+    - ./ci/install-kubectl-on-alpine.sh
   script:
-    - >
-      butler push
-      frontend/dist
-      eurac/$GAME_NAME:html5
-      --userversion ${CI_COMMIT_TAG:-$CI_COMMIT_SHORT_SHA}
+    - kubectl set image deployment/${K8S_DEPLOYMENT} oetzi=${IMAGE_NAME}:${CI_COMMIT_SHA} --namespace=${K8S_NAMESPACE}
 
-.fe-prd-deploy-job:
-  extends: .fe-deploy-job
+.be-prd-deploy-job:
+  extends: .be-deploy-job
   environment:
-    name: production/frontend
+    name: production/backend
     deployment_tier: production
-    url: https://eurac.itch.io/oetzi
+    url: https://kommul.eurac.edu/oetzi
   variables:
-    GAME_NAME: oetzi
+    K8S_NAMESPACE: kommul
+    K8S_DEPLOYMENT: oetzi-webserver-deployment
   only:
     - tags
 
-.fe-stg-deploy-job:
-  extends: .fe-deploy-job
+.be-stg-deploy-job:
+  extends: .be-deploy-job
   environment:
-    name: staging/frontend
+    name: staging/backend
     deployment_tier: staging
-    url: https://eurac.itch.io/oetzi-staging
+    url: https://kommul-dev.eurac.edu/oetzi
   variables:
-    GAME_NAME: oetzi-staging
+    K8S_NAMESPACE: kommul-dev
+    K8S_DEPLOYMENT: oetzi-webserver-deployment
   only:
     - development