资源
https://it.baiked.com/kubernetes/3425.html
https://www.servicemesher.com/blog/istio-envoy-grpc-metrics-winning-with-service-mesh-in-practice/
使用docker部署grpc示例
构建grpc-server及grpc-client镜像
[root@vm02 grpc-test]# ls
client-0.0.1-SNAPSHOT.jar grpc-client.yml grpc-server.yml server-0.0.1-SNAPSHOT.jar
[root@vm02 grpc-test]# cat grpc-server.yml
FROM openjdk:8-jdk
COPY ./server-0.0.1-SNAPSHOT.jar /usr/local
EXPOSE 8001
ENTRYPOINT ["java", "-jar", "/usr/local/server-0.0.1-SNAPSHOT.jar"]
[root@vm02 grpc-test]# cat grpc-client.yml
FROM openjdk:8-jdk
COPY ./client-0.0.1-SNAPSHOT.jar /usr/local
EXPOSE 8002
ENTRYPOINT ["java", "-jar", "/usr/local/client-0.0.1-SNAPSHOT.jar"]
docker build -t grpc-server:1.0 -f ./grpc-server.yml .
docker build -t grpc-client:1.0 -f ./grpc-client.yml .
docker run --name grpcserver -P -d grpc-server:1.0
docker run --name grpcclient -P --link grpcserver --env GRPC_ADDRESS=grpcserver -d grpc-client:1.0
[root@vm02 grpc-test]# curl localhost:32768/hello
this is grpc server!
[root@vm02 grpc-test]# curl localhost:32769/hello
this is grpc client!
[root@vm02 grpc-test]# curl localhost:32769/grpc
Hello wu jingang!
使用istio部署grpc示例
应用资源文件apps.yml
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: grpcserver
spec:
replicas: 1
template:
metadata:
labels:
name: grpcserver
app: grpcserver
spec:
serviceAccountName: default
containers:
- name: grpcserver
image: grpc-server:1.0
ports:
- containerPort: 8001
name: http-port
- containerPort: 5001
name: grpc-port
---
apiVersion: v1
kind: Service
metadata:
name: grpc-server-svc
spec:
ports:
- name: http
port: 8001
targetPort: 8001
- name: grpc-port
port: 5001
targetPort: 5001
selector:
name: grpcserver
type: NodePort
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: grpcclient
spec:
replicas: 1
template:
metadata:
labels:
name: grpcclient
app: grpcclient
spec:
serviceAccountName: default
containers:
- name: grpcclient
image: grpc-client:1.0
ports:
- containerPort: 8002
name: http-port
env:
- name: GRPC_ADDRESS
value: grpc-server-svc
---
apiVersion: v1
kind: Service
metadata:
name: grpc-client-svc
spec:
ports:
- name: http
port: 8002
targetPort: 8002
selector:
name: grpcclient
type: NodePort
部署
[root@vm01 grpc-test]# kubectl create ns n2
namespace/n2 created
[root@vm01 grpc-test]# kubectl label ns n2 istio-injection=enabled
namespace/n2 labeled
[root@vm01 grpc-test]# kubectl apply -f apps.yml -n n2
deployment.extensions/grpcserver created
service/grpcserver created
deployment.extensions/grpcclient created
service/grpcclient created
[root@vm01 ~]# kubectl get po -n n2
NAME READY STATUS RESTARTS AGE
grpcclient-89485c74c-258tz 2/2 Running 0 32s
grpcserver-b5b8d5964-jnjv5 2/2 Running 0 32s
# 端口转发kiali，使得虚拟机外可访问
[root@vm01 grpc-test]# kubectl -n istio-system port-forward --address 0.0.0.0 svc/kiali 20001:20001
测试
[root@vm01 grpc-test]# kubectl get svc -n n2
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
grpc-client-svc NodePort 10.1.116.151 <none> 8002:31148/TCP 18m
grpc-server-svc NodePort 10.1.132.57 <none> 8001:31462/TCP,5001:31926/TCP 18m
# 访问grpc client hello接口
[root@vm01 grpc-test]# curl http://192.168.11.11:31148/hello
this is grpc client!
# 访问grpc client grpc接口，内部使用gRPC调用grpc server
[root@vm01 grpc-test]# curl http://192.168.11.11:31148/grpc
Hello wu jingang!
# 访问grpc server hello接口
[root@vm01 grpc-test]# curl http://192.168.11.11:31462/hello
this is grpc server!
访问多次后生成的调用链图
调用链
