adopted pipeline based on docker a container

.gitlab-ci.yml

@@ -1,41 +1,22 @@
 ---
-variables:
-  NIX_CONFIG: "experimental-features = nix-command flakes recursive-nix"
-
 default:
-  tags:
-    - nix
-  before_script:
-    - nix-shell -p nix-direnv
-    # - direnv allow
+  image: fabcityhamburg/k8s-tools
 
 stages:
   - test
   - build
 
-lint.nix:
+lint.yaml:
   stage: test
   script:
-    - env
-    - nix-linter || true
-    - nix develop
-    - env
-    - nix-linter || true
-    - nix-linter *.nix
-# lint.yaml:
-#   stage: test
-#   script:
-#     - nix develop
-#     - yamllint -f auto .
+    - yamllint -f auto .
 
-# lint.kustomize.dev:
-#   stage: build
-#   script:
-#     - nix develop
-#     - kubectl kustomize overlays/dev --enable-helm
+lint.kustomize.dev:
+  stage: build
+  script:
+    - kubectl kustomize overlays/dev --enable-helm
 
-# lint.kustomize.prod:
-#   stage: build
-#   script:
-#     - nix develop
-#     - kubectl kustomize overlays/prod --enable-helm
+lint.kustomize.prod:
+  stage: build
+  script:
+    - kubectl kustomize overlays/prod --enable-helm