feat: CD workflow for publishing helm charts

Author: Lissy93

.github/workflows/helm.yml

@@ -0,0 +1,55 @@
+name: 📊 Publish Helm Chart to GHCR
+
+on:
+  push:
+    tags:
+      - 'v*'
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'Optional version tag (e.g. 0.0.9)'
+        required: false
+
+permissions:
+  contents: write
+  packages: write
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - name: 🛎️ Check out repo
+        uses: actions/checkout@v4
+
+      - name: 🔧 Set up Helm
+        uses: azure/setup-helm@v4
+        with:
+          version: v3.14.4
+
+      - name: 🧰 Login to GHCR
+        run: echo "${{ secrets.GITHUB_TOKEN }}" | helm registry login ghcr.io -u ${{ github.actor }} --password-stdin
+
+      - name: 🏷️ Determine version tag
+        id: vars
+        run: |
+          if [[ "${GITHUB_REF}" == refs/tags/v* ]]; then
+            VERSION="${GITHUB_REF#refs/tags/v}"
+          elif [[ -n "${{ github.event.inputs.tag }}" ]]; then
+            VERSION="${{ github.event.inputs.tag }}"
+          else
+            echo "❌ No valid version provided."
+            exit 1
+          fi
+          echo "tag=$VERSION" >> $GITHUB_OUTPUT
+
+      - name: 📝 Patch Chart.yaml with version
+        run: |
+          sed -i "s/^version: .*/version: ${{ steps.vars.outputs.tag }}/" helm/Chart.yaml
+          sed -i "s/^appVersion: .*/appVersion: \"${{ steps.vars.outputs.tag }}\"/" helm/Chart.yaml
+
+      - name: 📦 Package Helm chart
+        run: helm package helm
+
+      - name: 🚀 Push Helm chart to GHCR
+        run: |
+          helm push domain-locker-${{ steps.vars.outputs.tag }}.tgz oci://ghcr.io/lissy93