Refactor Makefile, GH workflows and other project housekeeping tasks

.github/workflows/check-codegen.yml

@@ -0,0 +1,39 @@
+name: Check Codegen
+
+on:
+  pull_request:
+    paths-ignore:
+      - 'docs/**'
+      - '**/*.md'
+
+jobs:
+  check-codegen:
+    name: Run on Ubuntu
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
+
+      - uses: actions/setup-go@v5
+        with:
+          go-version-file: 'go.mod'
+
+      - name: Run make generate
+        run: make generate
+
+      - name: Run make docs
+        run: make docs
+
+      - name: Run make helm
+        run: make helm
+
+      - name: Run fmt
+        run: make fmt
+
+      - name: Compare the expected and actual generated/* directories
+        run: |
+          if [ "$(git diff | wc -l)" -gt "0" ]; then
+            echo "Detected uncommitted changes after build. Consider running 'make generate && make docs && make helm'."
+            echo "See status below:"
+            git diff
+            exit 1
+          fi

.github/workflows/goreleaser.yaml

@@ -1,11 +1,3 @@
-################################################################################
-# This file is AUTOGENERATED with <https://github.com/sapcc/go-makefile-maker> #
-# Edit Makefile.maker.yaml instead.                                            #
-################################################################################
-
-# SPDX-FileCopyrightText: 2024 SAP SE or an SAP affiliate company
-# SPDX-License-Identifier: Apache-2.0
-
 name: goreleaser
 "on":
   push:
@@ -16,7 +8,7 @@ permissions:
   packages: write
 jobs:
   release:
-    name: goreleaser
+    name: Run on Ubuntu
     runs-on: ubuntu-latest
     steps:
       - name: Check out code

.github/workflows/kustomize-validation.yml

@@ -0,0 +1,24 @@
+name: Kustomize Validation
+
+on:
+  pull_request:
+    types: [ assigned, opened, synchronize, reopened ]
+    paths-ignore:
+      - 'docs/**'
+      - '**/*.md'
+
+jobs:
+  kustomize-validation:
+    name: Run on Ubuntu
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v5
+
+      - name: Install Kustomize
+        run: |
+          make kustomize
+          mv ./bin/kustomize /usr/local/bin
+
+      - run: |
+          ./hack/validate-kustomize.sh

.github/workflows/lint.yml

@@ -0,0 +1,26 @@
+name: Lint
+
+on:
+  pull_request:
+    paths-ignore:
+      - 'docs/**'
+      - '**/*.md'
+
+jobs:
+  lint:
+    name: Run on Ubuntu
+    runs-on: ubuntu-latest
+    steps:
+      - name: Clone the code
+        uses: actions/checkout@v5
+
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+
+      - name: Run linter
+        run: |
+          make golangci-lint
+          cp ./bin/golangci-lint /usr/local/bin/
+          go list -f '{{.Dir}}' ./... | grep -v nxos/ | xargs golangci-lint run

.github/workflows/publish-chart.yaml

@@ -0,0 +1,85 @@
+name: Release Helm Chart
+
+on:
+  release:
+    types:
+      - published
+  push:
+    branches:
+      - main
+    tags:
+      - 'v*.*.*'
+    paths-ignore:
+      - 'docs/**'
+      - '**/*.md'
+  pull_request:
+    branches:
+      - main
+    paths-ignore:
+      - 'docs/**'
+      - '**/*.md'
+    types: [labeled, opened, synchronize, reopened]
+
+jobs:
+  helm-chart:
+    name: Run on Ubuntu
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    if: |
+      github.event_name == 'push' ||
+      (github.event_name == 'pull_request' && contains(github.event.pull_request.labels.*.name, 'ok-to-charts')) ||
+      (github.event_name == 'release' && github.event.action == 'published')
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Set up Helm
+        uses: azure/setup-helm@v4
+        with:
+          version: v3.17.0
+
+      - name: Determine chart version
+        id: chart_version
+        run: |
+          if [[ "${{ github.event_name }}" == "push" && "${{ github.ref }}" == "refs/heads/main" ]]; then
+            # Use SHA for main branch
+            CHART_VERSION="0.0.0-$(echo ${{ github.sha }} | cut -c1-7)"
+          elif [[ "${{ github.event_name }}" == "push" && "${{ github.ref }}" =~ ^refs/tags/v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+            # Use tag version (strip 'v' prefix)
+            CHART_VERSION="${GITHUB_REF#refs/tags/v}"
+          else
+            # Use PR SHA for dry run
+            CHART_VERSION="0.0.0-$(echo ${{ github.sha }} | cut -c1-7)"
+          fi
+          echo "version=$CHART_VERSION" >> $GITHUB_OUTPUT
+
+      - name: Install Kustomize
+        run: |
+          make kustomize
+          mv ./bin/kustomize /usr/local/bin
+
+      - name: Package Helm chart with crds folder in template
+        run: |
+          helm package charts/network-operator --version ${{ steps.chart_version.outputs.version }}-crds
+
+      - name: Prepare CRDs folder
+        run: |
+          mkdir -p charts/network-operator/crds
+          kustomize build config/default | yq ea 'select(.kind == "CustomResourceDefinition")' > charts/network-operator/crds/crds.yaml
+          rm -rf charts/network-operator/templates/crd
+
+      - name: Package Helm chart with removed crds folder from template folder
+        run: |
+          helm package charts/network-operator --version ${{ steps.chart_version.outputs.version }}
+
+      - name: Log in to GitHub Container Registry
+        run: |
+          echo "${{ secrets.GITHUB_TOKEN }}" | helm registry login ghcr.io -u ${{ github.actor }} --password-stdin
+
+      - name: Push Helm chart to GHCR
+        run: |
+          helm push network-operator-${{ steps.chart_version.outputs.version }}.tgz oci://ghcr.io/${{ github.repository_owner }}/charts
+          helm push network-operator-${{ steps.chart_version.outputs.version }}-crds.tgz oci://ghcr.io/${{ github.repository_owner }}/charts