init: technical take home for gitlab operate

.gitlab-ci.yml

@@ -0,0 +1,83 @@
+stages:
+  - test
+  - build
+  - validate
+
+variables:
+  DOCKER_IMAGE: docker.io/uhryniuk/go-server
+  DOCKER_TAG: $CI_COMMIT_SHORT_SHA
+
+# Go build job
+go:build:
+  stage: test
+  image: golang:1.23-alpine
+  cache:
+    key: go-mod
+    paths:
+      - .go/pkg/mod/
+  variables:
+    GOPATH: $CI_PROJECT_DIR/.go
+  script:
+    - go build -o interview-server .
+  artifacts:
+    paths:
+      - interview-server
+    expire_in: 1 hour
+
+# Go unit tests
+go:test:
+  stage: test
+  image: golang:1.23-alpine
+  cache:
+    key: go-mod
+    paths:
+      - .go/pkg/mod/
+  variables:
+    GOPATH: $CI_PROJECT_DIR/.go
+  script:
+    - go test -v -cover
+
+# Docker build and push
+docker:build:
+  stage: build
+  image: docker:24
+  services:
+    - docker:24-dind
+  before_script:
+    - echo "$DOCKER_PASSWORD" | docker login -u "$DOCKER_USERNAME" --password-stdin docker.io
+  script:
+    - docker build -t $DOCKER_IMAGE:$DOCKER_TAG -t $DOCKER_IMAGE:latest .
+    - docker push $DOCKER_IMAGE:$DOCKER_TAG
+    - docker push $DOCKER_IMAGE:latest
+  only:
+    - main
+    - tags
+
+# Helm lint
+helm:lint:
+  stage: validate
+  image:
+    name: alpine/helm:4.0
+    entrypoint: [""]
+  script:
+    - helm lint ./helm
+
+# Helm template validation
+helm:template:
+  stage: validate
+  image: 
+    name: alpine/helm:4.0
+    entrypoint: [""]
+  script:
+    - helm version
+    - helm template test-release ./helm --debug > helm-output.yaml 2>&1 || (cat helm-output.yaml && exit 1)
+    - |
+      if [ ! -s helm-output.yaml ]; then
+        echo "Error: Helm template output is empty"
+        exit 1
+      fi
+    - echo "Helm template validation successful"
+  artifacts:
+    paths:
+      - helm-output.yaml
+    expire_in: 1 day