Access from external applications to services in the mesh¶

This page explains how external applications can be configured to access services within the mesh.

precondition:

• The service bookinfo.com runs under the default namespace of the mesh global-service

• Mesh provides ingressgateway gateway instance

Configuration goal: realize the external exposure of the internal service bookinfo.com.

1. Through the URI matching method, realize the access routing of the specified page of the service bookinfo.com by external applications.

2. Click Traffic Governance -> Gateway Rules -> Create to create a gateway rule for the istio gateway, and expose the service and port to the outside.

   The YAML example after configuration is as follows:

   apiVersion: networking.istio.io/v1beta1
   kind: Gateway
   metadata:
     name: bookinfo-gateway
   spec:
     selector:
       istio: ingressgateway # use the default controller
     servers:
     - port:
         number: 80
         name: http
         protocol: HTTP
       hosts:
       -bookinfo.com
   

3. Click OK to return to the list of gateway rules, and you can see the prompt of successful creation.

4. Click Traffic Governance -> Virtual Service -> Create to create routing rules to route to specified pages based on the URI in the request.

   The YAML example after configuration is as follows:

   apiVersion: networking.istio.io/v1beta1
   kind: VirtualService
   metadata:
     name: bookinfo
   spec:
     hosts:
     -bookinfo.com
     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
   

5. Click OK to return to the virtual service list, and you can see the prompt that the creation is successful.

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