官方文档更新较慢,记录一下部署在kubernetes上卻的问题。
1. 源码编译
1.1 clone源码
git clone https://github.com/micro/micro.git
1.2 修改main.go
在Import中增加
_ "github.com/micro/go-plugins/registry/kubernetes/v2"
1.3 编译
cd micro
make build
1.4 打包镜像
FROM alpine:latest RUN apk add ca-certificates && \ rm -rf /var/cache/apk/* /tmp/* && \ [ ! -e /etc/nsswitch.conf ] && echo 'hosts: files dns' > /etc/nsswitch.conf RUN mkdir /lib64 && ln -s /lib/libc.musl-x86_64.so.1 /lib64/ld-linux-x86-64.so.2 COPY ./micro /
打包完成后上传到镜像仓库
2. 准备k8s配置文件
2.1 rbac配置
apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRole metadata: name: micro-registry rules: - apiGroups: - "" resources: - pods verbs: - list - patch - watch --- apiVersion: rbac.authorization.k8s.io/v1 kind: RoleBinding metadata: name: micro-registry roleRef: apiGroup: rbac.authorization.k8s.io kind: ClusterRole name: micro-registry subjects: - kind: ServiceAccount name: micro-services namespace: default
手动创建 serviceaccount
kubectl create serviceaccount micro-services
2.2 准备deployment, service, ingress
apiVersion: apps/v1 kind: Deployment metadata: namespace: default name: micro-gateway spec: replicas: 2 selector: matchLabels: name: micro-gateway strategy: rollingUpdate: maxSurge: 1 maxUnavailable: 1 template: metadata: labels: name: micro-gateway spec: serviceAccountName: micro-services containers: - name: api image: xxxxx/micro:v2.6.0 imagePullPolicy: Always ports: - containerPort: 8080 name: gateway-port command: [ "/micro", "--registry=kubernetes", "--api_handler=http", "--api_namespace=go.micro.api", "--enable_stats", "api", ]
apiVersion: v1 kind: Service metadata: name: micro-gateway namespace: default labels: app: micro spec: selector: name: micro-gateway ports: - port: 8080 protocol: TCP name: gateway-port
apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: name: gateway-ingress namespace: default spec: rules: - http: paths: - path: / backend: serviceName: micro-gateway servicePort: gateway-port
2.3 启动服务
kubectl apply -f .
micro-gateway-7568767d67-9z97x 1/1 Running 12 16h micro-gateway-7568767d67-flt8q 1/1 Running 12 16h
2.4 验证
curl http://<host>/
{"version": "v2.6.0-7beb185-1588844537"}
3. 参考文档
https://micro.mu/docs/deploy-kubernetes.html
https://github.com/micro/go-plugins/issues/463
https://github.com/micro/examples/tree/master/kubernetes#installing-micro
https://github.com/micro/go-plugins/tree/master/registry/kubernetes