Merge pull request #14 from Liquid-Reply/update-readme

Update readme

README.md

@@ -1 +1,6 @@
 # Spin Examples
+
+## Bookinfo
+
+This example ports the [Istio bookinfo sample applications](https://istio.io/latest/docs/examples/bookinfo/) to WASM and runs them
+on Kubernetes using the [kwasm-operator](https://kwasm.sh/) and [Spin](https://www.fermyon.com/spin). Check out the [bookinfo](bookinfo/) for more infos.

bookinfo/README.md

@@ -0,0 +1,37 @@
+# bookinfo demo
+
+## Steps to deploy
+
+1. Set up a kind cluster
+
+```bash
+kind create cluster
+```
+
+2. Install the kwasm-operator and annotate all nodes for kwasm
+
+```bash
+helm repo add kwasm http://kwasm.sh/kwasm-operator/
+helm install -n kwasm --create-namespace kwasm-operator kwasm/kwasm-operator
+kubectl annotate node --all kwasm.sh/kwasm-node=true
+```
+
+3. Deploy the Helm chart. Choose one of the provided value files:
+
+- `chart/values.istio.yaml` deploys the 4 bookinfo components as is from the Istio example
+- `chart/values.mixed.yaml` deploys the productinfo dashboard and the ratings service from the Istio image and the details and reviews service as wasm modules
+- `chart/values.spin.yaml` deploys all 4 services as wasm modules
+
+```bash
+helm upgrade --install bookinfo ./chart -f chart/values.istio.yaml
+```
+
+The same command with a different values file can be used to switch between the different combinations.
+
+4. (Create an image pull secret for pulling the wasm images)
+
+Should not be necessary any more, but in case we have set the package visibility to private again, you can try creating an image pull secret:
+
+```bash
+kubectl create secret docker-registry ghcr --docker-server=ghcr.io --docker-username="$GITHUB_USERNAME" --docker-password="$GITHUB_PERSONAL_ACCESS_TOKEN" --docker-email="[email protected]"
+```