服务部署
生产环境搭建
docker & k8s搭建
具体请看我的下一篇文章
git公有仓库 & 容器公有仓库 & CI、DI
具体请看我的下一篇文章
配置文件编写 & 生成
dockerfile
咱们先用网关局部代码来演示
- 执行代码
./cmd.sh gen dockerfile gateway- 生成文件
code/service/gateway/api/Dockerfile
### 加载根底镜像FROM golang:alpine AS builderLABEL stage=gobuilderENV CGO_ENABLED 0ENV GOOS linux### 设置 go module 代理ENV GOPROXY https://goproxy.cn,directWORKDIR /build/zero### 下载依赖文件ADD go.mod .ADD go.sum .RUN go mod downloadCOPY . .COPY service/gateway/api/etc /app/etc### 编译源代码RUN go build -ldflags="-s -w" -o /app/gateway service/gateway/api/gateway.go### 生成docker镜像FROM alpineRUN apk update --no-cache && apk add --no-cache ca-certificates tzdataENV TZ Asia/ShanghaiWORKDIR /appCOPY --from=builder /app/gateway /app/gatewayCOPY --from=builder /app/etc /app/etcCMD ["./gateway", "-f", "etc/gateway.prod.yaml"]从生成的Dockerfile能够看到次要有两个局部
- 加载golang根底镜像，将代码编译为二进制文件
- 加载运行环境根底镜像并生成gateway运行环境的docker镜像
为啥分为两个局部呢，咱们不能间接把编译代码和打包镜像放一起吗，这当然是能够的，然而这样会导致docker镜像包会很大，而把编译和打包离开后能够大大减少docker镜像包的大小，不便咱们疾速散发和部署。
编译代码&镜像打包
➜ go-zero-mall git:(master) ✗ ./cmd.sh docker build gateway-------- docker build gateway --------time: 2022-05-02 00:19:58 msg: ------------ docker build gateway ------------Untagged: gateway:latestDeleted: sha256:0eedc326b97f06a3c5d19665309369c4c163e430b6c3d17de8ba9a1ebaf37ca8[+] Building 31.9s (19/19) FINISHED => [internal] load build definition from Dockerfile 0.0s => => transferring dockerfile: 733B 0.0s => [internal] load .dockerignore 0.0s => => transferring context: 2B 0.0s => [internal] load metadata for docker.io/library/alpine:latest 3.7s => [internal] load metadata for docker.io/library/golang:alpine 3.4s => [builder 1/8] FROM docker.io/library/golang:alpine@sha256:42d35674864fbb57 0.0s => [internal] load build context 1.2s => => transferring context: 35.78MB 1.1s => [stage-1 1/5] FROM docker.io/library/alpine@sha256:4edbd2beb5f78b1014028f4 0.0s => CACHED [builder 2/8] WORKDIR /build/zero 0.0s => CACHED [builder 3/8] ADD go.mod . 0.0s => CACHED [builder 4/8] ADD go.sum . 0.0s => CACHED [builder 5/8] RUN go mod download 0.0s => [builder 6/8] COPY . . 0.6s => [builder 7/8] COPY service/gateway/api/etc /app/etc 0.0s => [builder 8/8] RUN go build -ldflags="-s -w" -o /app/gateway service/gatew 26.1s => CACHED [stage-1 2/5] RUN apk update --no-cache && apk add --no-cache ca-ce 0.0s => CACHED [stage-1 3/5] WORKDIR /app 0.0s => CACHED [stage-1 4/5] COPY --from=builder /app/gateway /app/gateway 0.0s => CACHED [stage-1 5/5] COPY --from=builder /app/etc /app/etc 0.0s => exporting to image 0.0s => => exporting layers 0.0s => => writing image sha256:0eedc326b97f06a3c5d19665309369c4c163e430b6c3d17de8 0.0s => => naming to docker.io/library/gateway:latest 0.0sUse 'docker scan' to run Snyk tests against images to find vulnerabilities and learn how to fix themdocker images查看docker镜像信息
➜ go-zero-mall git:(master) ✗ docker imagesREPOSITORY TAG IMAGE ID CREATED SIZEgateway latest 0eedc326b97f 7 days ago 41.6MB主动部署文件编写deploy.yaml
apiVersion: apps/v1kind: Deploymentmetadata: labels: app: go-zero-mall-gateway name: go-zero-mall-gateway namespace: zero #肯定要写名称空间spec: progressDeadlineSeconds: 600 replicas: 3 selector: matchLabels: app: go-zero-mall-gateway strategy: rollingUpdate: maxSurge: 50% maxUnavailable: 50% type: RollingUpdate template: metadata: labels: app: go-zero-mall-gateway spec: imagePullSecrets: - name: aliyun-docker-hub #提前在我的项目下配置拜访阿里云的账号密码 affinity: podAntiAffinity: preferredDuringSchedulingIgnoredDuringExecution: - weight: 100 podAffinityTerm: labelSelector: matchLabels: app: go-zero-mall-gateway topologyKey: kubernetes.io/hostname containers: - image: $REGISTRY/$ALIYUNHUB_NAMESPACE/gateway:latest imagePullPolicy: Always name: app ports: - containerPort: 8000 protocol: TCP resources: limits: cpu: 200m memory: 60Mi terminationMessagePath: /dev/termination-log terminationMessagePolicy: File dnsPolicy: ClusterFirst restartPolicy: Always terminationGracePeriodSeconds: 30---apiVersion: v1kind: Servicemetadata: labels: app: go-zero-mall-gateway name: go-zero-mall-gateway namespace: zerospec: ports: - name: http port: 8000 protocol: TCP targetPort: 8000 selector: app: go-zero-mall-gateway sessionAffinity: None type: ClusterIP通过主动部署文件咱们能够指定一些要害指标
- 服务名称
- pod数量
- 主动扩容阀值
- 服务权重
- 容器端口
- cpu&memory最大使用量
通过这些指标咱们的服务根本能够稳固运行啦
Jenkins文件编写Jenkinsfile
pipeline { agent { node { label 'go' } } stages { stage('clone code') { agent none steps { git(url: 'https://gitee.com/go-open-project/go-zero-mall.git', changelog: true, poll: false) sh 'ls -al' } } stage('deploy user') { // agent none steps { container ('go') { withCredentials([ kubeconfigFile( credentialsId: env.KUBECONFIG_CREDENTIAL_ID, variable: 'KUBECONFIG' )]) { sh 'envsubst < code/service/user/rpc/deploy.yaml | kubectl apply -f -' } } } } stage('deploy product') { // agent none steps { container ('go') { withCredentials([ kubeconfigFile( credentialsId: env.KUBECONFIG_CREDENTIAL_ID, variable: 'KUBECONFIG' )]) { sh 'envsubst < code/service/product/rpc/deploy.yaml | kubectl apply -f -' } } } } stage('deploy order') { // agent none steps { container ('go') { withCredentials([ kubeconfigFile( credentialsId: env.KUBECONFIG_CREDENTIAL_ID, variable: 'KUBECONFIG' )]) { sh 'envsubst < code/service/order/rpc/deploy.yaml | kubectl apply -f -' } } } } stage('deploy gateway') { // agent none steps { container ('go') { withCredentials([ kubeconfigFile( credentialsId: env.KUBECONFIG_CREDENTIAL_ID, variable: 'KUBECONFIG' )]) { sh 'envsubst < code/service/gateway/api/deploy.yaml | kubectl apply -f -' } } } } } environment { DOCKER_CREDENTIAL_ID = 'dockerhub-id' GITHUB_CREDENTIAL_ID = 'github-id' KUBECONFIG_CREDENTIAL_ID = 'demo-kubeconfig' REGISTRY = 'registry.cn-shanghai.aliyuncs.com' DOCKERHUB_NAMESPACE = 'ttsimple' ALIYUNHUB_NAMESPACE = 'ttsimple' GITHUB_ACCOUNT = 'kubesphere' APP_NAME = 'go-zero-mall-gateway' } parameters { string(name: 'TAG_NAME', defaultValue: '', description: '') }}咱们在 DevOps 中设置好环境变量、仓库地址、webhook 后便可在咱们推送代码后主动部署咱们的我的项目
阐明：咱们的容器是在开发环境打包的，咱们当然也能够通过 Jenkins 来主动打包镜像
- 主动部署状态
- 服务运行状态
- 调用线上用户登录接口
总结
- 通过 go-zero 能够不便生成dockerfile
- 在
deploy.yaml中指定服务部署指标 - 在
Jenkinsfile中指定服务从哪里来，别离须要部署哪些服务，等等。 公有部署
- 镜像服务能够应用
Harbor搭建， - 镜像制品能够应用云服务或
Jenkins来打包生成， - 公有仓库能够应用云服务，gitee，开源仓库服务来搭建
- 镜像服务能够应用