diff --git a/.github/ci/values-ci.yaml b/.github/ci/values-ci.yaml
new file mode 100644
index 0000000..ed3b034
--- /dev/null
+++ b/.github/ci/values-ci.yaml
@@ -0,0 +1,59 @@
+image:
+  registry: ghcr.io
+  repository: raylabshq/gitea-mirror
+  tag: ""
+
+service:
+  type: ClusterIP
+  port: 8080
+
+ingress:
+  enabled: true
+  className: "nginx"
+  hosts:
+    - host: ci.example.com
+
+route:
+  enabled: true
+  forceHTTPS: true
+  domain: ["ci.example.com"]
+  gateway: "dummy-gw"
+  gatewayNamespace: "default"
+  http:
+    gatewaySection: "http"
+  https:
+    gatewaySection: "https"
+
+gitea-mirror:
+  nodeEnv: production
+  core:
+    databaseUrl: "file:data/gitea-mirror.db"
+    betterAuthSecret: "dummy"
+    betterAuthUrl: "http://localhost:4321"
+    betterAuthTrustedOrigins: "http://localhost:4321"
+  github:
+    username: "ci-user"
+    token: "not-used-in-template"
+    type: "personal"
+    privateRepositories: true
+    skipForks: false
+    skipStarredIssues: false
+  gitea:
+    url: "https://gitea.example.com"
+    token: "not-used-in-template"
+    username: "ci-user"
+    organization: "github-mirrors"
+    visibility: "public"
+  mirror:
+    releases: true
+    wiki: true
+    metadata: true
+    issues: true
+    pullRequests: true
+    starred: false
+  automation:
+    schedule_enabled: true
+    schedule_interval: "3600"
+  cleanup:
+    enabled: true
+    interval: "2592000"
diff --git a/.github/workflows/helm-test.yml b/.github/workflows/helm-test.yml
new file mode 100644
index 0000000..999efbc
--- /dev/null
+++ b/.github/workflows/helm-test.yml
@@ -0,0 +1,50 @@
+name: Helm Chart CI
+
+on:
+  pull_request:
+  push:
+    branches: [ main ]
+  workflow_dispatch:
+
+jobs:
+  yamllint:
+    name: Lint YAML
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.x'
+      - name: Install yamllint
+        run: pip install --disable-pip-version-check yamllint
+      - name: Run yamllint
+        run: |
+          yamllint -c helm/gitea-mirror/.yamllint helm/gitea-mirror
+
+  helm-template:
+    name: Helm lint & template
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Helm
+        uses: azure/setup-helm@v4
+        with:
+          version: v3.19.0
+      - name: Helm lint
+        run: |
+          helm lint ./helm/gitea-mirror
+      - name: Template with defaults
+        run: |
+          helm template test ./helm/gitea-mirror > /tmp/render-defaults.yaml
+          test -s /tmp/render-defaults.yaml
+      - name: Template with CI values
+        run: |
+          helm template test ./helm/gitea-mirror -f .github/ci/values-ci.yaml > /tmp/render-ci.yaml
+          test -s /tmp/render-ci.yaml
+      - name: Show a summary
+        run: |
+          echo "Rendered with defaults:"
+          awk 'NR<=50{print} NR==51{print "..."; exit}' /tmp/render-defaults.yaml
+          echo ""
+          echo "Rendered with CI values:"
+          awk 'NR<=50{print} NR==51{print "..."; exit}' /tmp/render-ci.yaml