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helm-chart/README.md

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+# Helm chart for Online Boutique
+
+If you'd like to deploy Online Boutique via its Helm chart, you could leverage the following instructions.
+
+**Warning:** Online Boutique's Helm chart is currently experimental. If you have feedback or run into issues, let us know inside [GitHub Issue #1319](https://github.com/GoogleCloudPlatform/microservices-demo/issues/1319) or by creating a [new GitHub Issue](https://github.com/GoogleCloudPlatform/microservices-demo/issues/new/choose).
+
+Deploy the default setup of Online Boutique:
+```sh
+helm upgrade onlineboutique oci://us-docker.pkg.dev/online-boutique-ci/charts/onlineboutique \
+    --install
+```
+
+Deploy advanced scenario of Online Boutique:
+```sh
+helm upgrade onlineboutique oci://us-docker.pkg.dev/online-boutique-ci/charts/onlineboutique \
+    --install \
+    --create-namespace \
+    --set images.repository=us-docker.pkg.dev/my-project/microservices-demo \
+    --set frontend.externalService=false \
+    --set redis.create=false \
+    --set cartservice.database.type=spanner \
+    --set cartservice.database.connectionString=projects/my-project/instances/onlineboutique/databases/carts \
+    --set serviceAccounts.create=true \
+    --set authorizationPolicies.create=true \
+    --set networkPolicies.create=true \
+    --set sidecars.create=true \
+    --set frontend.virtualService.create=true \
+    --set 'serviceAccounts.annotations.iam\.gke\.io/gcp-service-account=spanner-db-user@my-project.iam.gserviceaccount.com' \
+    --set serviceAccounts.annotationsOnlyForCartservice=true \
+    -n onlineboutique
+```
+
+For the full list of configurations, see [values.yaml](./values.yaml).
+
+You could also find advanced scenarios with these blogs below:
+- [Online Boutique sample’s Helm chart, to simplify the setup of advanced and secured scenarios with Service Mesh and GitOps](https://medium.com/google-cloud/246119e46d53)
+- [gRPC health probes with Kubernetes 1.24+](https://medium.com/google-cloud/b5bd26253a4c)
+- [Use Google Cloud Spanner with the Online Boutique sample](https://medium.com/google-cloud/f7248e077339)