feat!: GO rewrite

.cz.yaml

@@ -1,12 +1,11 @@
 ---
 commitizen:
   annotated_tag: true
-  bump_message: "bump(release): v$current_version \u2192 v$new_version"
+  bump_message: "bump(release): v$current_version → v$new_version"
   name: cz_conventional_commits
   tag_format: $major.$minor.$patch$prerelease
   update_changelog_on_bump: true
-  version: 1.1.1
+  version: 2.0.0
   version_files:
-  - build.gradle:version
   - charts/locust-k8s-operator/Chart.yaml:appVersion
   - charts/locust-k8s-operator/Chart.yaml:version

.dockerignore

@@ -0,0 +1,34 @@
+# More info: https://docs.docker.com/engine/reference/builder/#dockerignore-file
+
+# Test files
+test/
+*_test.go
+
+# Documentation
+docs/
+*.md
+LICENSE
+
+# Git
+.git/
+.gitignore
+
+# IDE
+.idea/
+.vscode/
+
+# CI
+.github/
+.golangci.yml
+
+# Build artifacts
+bin/
+cover.out
+coverage.out
+
+# Planning
+.planning/
+
+# Python
+venv/
+__pycache__/

.editorconfig

@@ -0,0 +1,29 @@
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+charset = utf-8
+trim_trailing_whitespace = true
+
+[*.go]
+indent_style = tab
+indent_size = 4
+
+[*.{yaml,yml}]
+indent_style = space
+indent_size = 2
+
+[*.{md,markdown}]
+trim_trailing_whitespace = false
+
+[Makefile]
+indent_style = tab
+
+[Dockerfile]
+indent_style = space
+indent_size = 4
+
+[*.sh]
+indent_style = space
+indent_size = 2

.github/ct.yaml

@@ -1,3 +1,3 @@
 debug: true
 validate-maintainers: false
-helm-extra-args: --timeout 600
+helm-extra-args: --timeout 300s

.github/workflows/ci.yaml

@@ -7,149 +7,183 @@ on:
     branches:
       - master
       - main
-  pull_request_target:
-    types: [ opened, synchronize, reopened, ready_for_review ]
+  pull_request:
+    types: [opened, synchronize, reopened, ready_for_review]
 
 # Sets default read-only permissions for the workflow.
 permissions: read-all
 
 jobs:
-  # Job to build and validate the project.
-  build:
-    name: 🏗️ Build & Validate
+  # ============================================
+  # Go Operator Build & Test
+  # ============================================
+  build-go:
+    name: 🏗️ Build Go Operator
     runs-on: ubuntu-latest
+    timeout-minutes: 30
     steps:
-      # Step 1: Checks out the repository code.
       - name: 📂 Checkout repo
         uses: actions/checkout@v4
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           repository: ${{ github.event.pull_request.head.repo.full_name }}
 
-      # Step 2: Sets up JDK 21.
-      - name: ☕ Set up JDK 21
-        uses: actions/setup-java@v4
+      - name: 🔧 Setup Go
+        uses: actions/setup-go@v5
         with:
-          java-version: 21
-          distribution: temurin
+          go-version-file: go.mod
 
-      # Step 3: Validates the Gradle wrapper to ensure its integrity.
-      - name: ✅ Validate Gradle wrapper
-        uses: gradle/wrapper-validation-action@v3.4.2
+      - name: 📥 Download dependencies
+        run: go mod download
 
-      # Step 4: Builds the project and generates a JaCoCo test report.
-      - name: 🛠️ Build
-        uses: gradle/gradle-build-action@v3.5.0
+      - name: 🔍 Run linter
+        uses: golangci/golangci-lint-action@v8
         with:
-          arguments: build jacocoTestReport -i
+          version: v2.1.0
+
+      - name: 🛠️ Build
+        run: make build
+
+      - name: ✅ Run tests
+        run: make test
 
-      # Step 5: Reports code coverage to Codecov.
       - name: 📊 Report coverage
+        if: always()
         uses: codecov/codecov-action@v5
         with:
-          name: branch-${{ github.ref }}
-          verbose: true
+          files: cover.out
+          flags: go-unit-tests
+          name: go-coverage
           fail_ci_if_error: false
 
-      # Step 6: Runs the Codacy coverage reporter.
-      - name: 📈 Run codacy coverage reporter
-        uses: codacy/codacy-coverage-reporter-action@v1
+      - name: 📦 Upload Go test artifacts on failure
+        if: failure()
+        uses: actions/upload-artifact@v4
         with:
-          project-token: ${{ secrets.CODACY_PROJECT_TOKEN }}
-
-      # Step 7: Uploads build artifacts.
-      - name: 📦 Upload build artifacts
-        uses: actions/upload-artifact@v4.4.0
-        with:
-          name: Build Artifacts
+          name: go-test-artifacts
           path: |
-            **/build/reports
+            cover.out
+          retention-days: 7
 
-  # Job to lint and test the Helm chart.
+  # ============================================
+  # Helm Chart Lint & Test
+  # ============================================
   lint-test-helm:
     name: 🌊 Lint & Test chart
     runs-on: ubuntu-latest
-    needs:
-      - build
+    timeout-minutes: 30
     steps:
-      # Step 1: Checks out the repository code.
       - name: 📂 Checkout
-        uses: actions/checkout@v4.1.1
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
           ref: ${{ github.event.pull_request.head.sha }}
           repository: ${{ github.event.pull_request.head.repo.full_name }}
 
-      # Step 2: Sets up Helm.
       - name: 🌊 Set up Helm
         uses: azure/setup-helm@v4
         with:
-          version: v3.10.0
+          version: v3.14.0
 
-      # Step 3: Sets up Python.
       - name: 🐍 Set up Python
         uses: actions/setup-python@v5
         with:
           python-version: '3.9'
           check-latest: true
 
-      # Step 4: Sets up chart-testing.
       - name: 📊 Set up chart-testing
         uses: helm/chart-testing-action@v2.7.0
 
-      # Step 5: Lists the Helm charts that have changed.
       - name: 📋 Run chart-testing (list-changed)
         id: list-changed
         run: |
           changed=$(ct list-changed --target-branch ${{ github.event.repository.default_branch }})
           if [[ -n "$changed" ]]; then
-            echo "::set-output name=changed::true"
+            echo "changed=true" >> $GITHUB_OUTPUT
           fi
 
-      # Step 6: Lints the Helm charts.
       - name: 🔎 Run chart-testing (lint)
         run: ct lint --target-branch ${{ github.event.repository.default_branch }} --config .github/ct.yaml
 
-      # Step 7: Creates a KinD cluster if any charts have changed.
       - name: ⛵ Create kind cluster
         uses: helm/kind-action@v1.12.0
         if: steps.list-changed.outputs.changed == 'true'
 
-      # Step 8: Installs the Helm charts.
+      - name: 🔧 Setup Go
+        if: steps.list-changed.outputs.changed == 'true'
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+
+      - name: 🛠️ Install ko
+        if: steps.list-changed.outputs.changed == 'true'
+        uses: ko-build/setup-ko@v0.7
+
+      - name: 🐳 Build operator image with ko
+        if: steps.list-changed.outputs.changed == 'true'
+        env:
+          KO_DOCKER_REPO: lotest/locust-k8s-operator
+        run: |
+          CHART_VERSION=$(grep '^appVersion:' charts/locust-k8s-operator/Chart.yaml | awk '{print $2}' | tr -d '"')
+          ko build ./cmd --local --bare --tags=${CHART_VERSION}
+
+      - name: 📦 Load image into kind cluster
+        if: steps.list-changed.outputs.changed == 'true'
+        run: |
+          CHART_VERSION=$(grep '^appVersion:' charts/locust-k8s-operator/Chart.yaml | awk '{print $2}' | tr -d '"')
+          kind load docker-image lotest/locust-k8s-operator:${CHART_VERSION} --name chart-testing
+
       - name: 🚀 Run chart-testing (install)
-        run: ct install --target-branch ${{ github.event.repository.default_branch }} --config .github/ct.yaml
+        run: ct install --target-branch ${{ github.event.repository.default_branch }} --config .github/ct.yaml --helm-extra-set-args "--set=image.pullPolicy=Never"
+
+      - name: 📦 Collect kind cluster logs on failure
+        if: failure() && steps.list-changed.outputs.changed == 'true'
+        run: kind export logs kind-logs --name chart-testing
+
+      - name: 📦 Upload Helm test artifacts on failure
+        if: failure() && steps.list-changed.outputs.changed == 'true'
+        uses: actions/upload-artifact@v4
+        with:
+          name: helm-test-artifacts
+          path: |
+            kind-logs/
+          retention-days: 7
 
-  # Job to test the documentation.
   docs-test:
     name: 📚 Test documentation
     runs-on: ubuntu-latest
-    needs:
-      - lint-test-helm
+    timeout-minutes: 15
     steps:
-      # Step 1: Checks out the repository code.
       - name: 📂 Checkout
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
           ref: ${{ github.event.pull_request.head.sha }}
           repository: ${{ github.event.pull_request.head.repo.full_name }}
 
-      # Step 2: Sets up Python.
       - name: 🐍 Setup python
         uses: actions/setup-python@v5
         with:
           python-version: 3.x
 
-      # Step 3: Installs dependencies.
       - name: 📦 Install dependencies
         run: |
           pip install \
           mkdocs-material \
-          mkdocs-git-revision-date-localized-plugin
+          mkdocs-git-revision-date-localized-plugin \
+          mkdocs-minify-plugin
 
-      # Step 4: Builds the documentation.
       - name: 📄 Build documentation
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
           python -m mkdocs build
+
+      - name: 📦 Upload docs build artifacts on failure
+        if: failure()
+        uses: actions/upload-artifact@v4
+        with:
+          name: docs-build-artifacts
+          path: |
+            site/
+          retention-days: 7

.github/workflows/docs-preview.yml

@@ -43,6 +43,7 @@ jobs:
         run: |
           pip install mkdocs-material
           pip install mkdocs-git-revision-date-localized-plugin
+          pip install mkdocs-minify-plugin
 
       - name: 🔧 Configure MkDocs for preview
         run: |

.github/workflows/go-test-e2e.yml

@@ -0,0 +1,61 @@
+name: 🚀 Go E2E Tests
+
+on:
+  push:
+    branches: [main, master]
+    paths:
+      - 'cmd/**'
+      - 'api/**'
+      - 'internal/**'
+      - 'test/**'
+      - 'go.mod'
+      - 'go.sum'
+      - 'Makefile'
+  pull_request:
+    paths:
+      - 'cmd/**'
+      - 'api/**'
+      - 'internal/**'
+      - 'test/**'
+      - 'go.mod'
+      - 'go.sum'
+      - 'Makefile'
+
+permissions: read-all
+
+jobs:
+  test-e2e:
+    name: 🎯 Run E2E Tests
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - name: 📥 Clone the code
+        uses: actions/checkout@v4
+
+      - name: 🔧 Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+
+      - name: ☸️ Create Kind cluster
+        uses: helm/kind-action@v1.12.0
+        with:
+          cluster_name: locust-k8s-operator-test-e2e
+          wait: 120s
+
+      - name: 🔍 Verify go mod tidy
+        run: |
+          go mod tidy
+          git diff --exit-code -- go.mod go.sum
+
+      - name: 🎯 Run E2E tests
+        run: make test-e2e
+
+      - name: 📦 Upload E2E test artifacts on failure
+        if: failure()
+        uses: actions/upload-artifact@v4
+        with:
+          name: e2e-test-artifacts
+          path: |
+            cover.out
+          retention-days: 7