Deploying Istio bookinfo app on OpenShift 4.12

The Bookinfo application consists of the following microservices:

The productpage microservice calls the details and reviews microservices to populate the page.
The details microservice contains book information.
The reviews microservice contains book reviews. It also calls the ratings microservice.
The ratings microservice contains book ranking information that accompanies a book review.

There are three versions of the reviews microservice:

Version v1 does not call the ratings Service.
Version v2 calls the ratings Service and displays each rating as one to five black stars.
Version v3 calls the ratings Service and displays each rating as one to five red stars.

Create the bookinfo project.

$ oc new-project bookinfo

Add the bookinfo project to the ServiceMeshMemberRoll

$ oc -n istio-system patch --type='json' smmr default -p '[{"op": "add", "path": "/spec/members", "value":["'"bookinfo"'"]}]'

Deploy the Bookinfo application in the bookinfo project by applying the bookinfo.yaml

$ oc apply -n bookinfo -f https://raw.githubusercontent.com/Maistra/bookinfo/maistra-1.0/bookinfo.yaml

Create the ingress gateway using port 80 by applying the bookinfo-gateway.yaml

apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: bookinfo-gateway
spec:
  selector:
    istio: ingressgateway # use istio default controller
  servers:
  - port:
      number: 80
      name: http
      protocol: HTTP
    hosts:
    - "*"
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: bookinfo
spec:
  hosts:
  - "*"
  gateways:
  - bookinfo-gateway
  http:
  - match:
    - uri:
        exact: /productpage
    - uri:
        exact: /login
    - uri:
        exact: /logout
    - uri:
        prefix: /api/v1/products
    route:
    - destination:
        host: productpage
        port:
          number: 9080

Set the value for the GATEWAY_URL variable

$ export GATEWAY_URL=$(oc -n istio-system get route istio-ingressgateway -o jsonpath='{.spec.host}')

Add default destination rules
when mutual TLS is disabled

$ oc apply -n bookinfo -f https://raw.githubusercontent.com/istio/istio/release-1.1/samples/bookinfo/networking/destination-rule-all.yaml

Validate Deployment

curl -o /dev/null -s -w "%{http_code}\n" http://$GATEWAY_URL/productpage

Or navigate to http://$GATEWAYURL/productpage in your browser.

echo http://$GATEWAY_URL/productpage

Or run a for loop

for i in {1..75}; do
  curl -o /dev/null -s -w "%{http_code}\n" http://$GATEWAY_URL/productpage
  sleep 2
done

You can now open tools like kiali

Deploying Istio bookinfo app on OpenShift 4.12

Links: