搭建及使用K8s集群 <k8s集群部署springcloud 单应用>
2017-10-16 10:55
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k8s集群部署springcloud 单应用
docker配置docker私库docker build 镜像
k8s集群部署 镜像
验证部署结果
1. docker配置docker私库
1.1 编辑/etc/sysconfig/docker
cat /etc/sysconfig/docker # /etc/sysconfig/docker # Modify these options if you want to change the way the docker daemon runs OPTIONS='--selinux-enabled --log-driver=journald --signature-verification=false --insecure-registry docker.hbg.io ' if [ -z "${DOCKER_CERT_PATH}" ]; then DOCKER_CERT_PATH=/etc/docker fi ADD_REGISTRY='--insecure-registry docker.hbg.io' # Do not add registries in this file anymore. Use /etc/containers/registries.conf # from the atomic-registries package. # # docker-latest daemon can be used by starting the docker-latest unitfile. # To use docker-latest client, uncomment below lines #DOCKERBINARY=/usr/bin/docker-latest #DOCKERDBINARY=/usr/bin/dockerd-latest #DOCKER_CONTAINERD_BINARY=/usr/bin/docker-containerd-latest #DOCKER_CONTAINERD_SHIM_BINARY=/usr/bin/docker-containerd-shim-latest
OPTIONS中添加 –insecure-registry docker.hbg.io
添加一行 ADD_REGISTRY=’–insecure-registry docker.hbg.io’
重启docker
docker.hbg.io 为私库地址
登录私库
# docker login docker.hbg.io Username: **** Password: Login Succeeded
部署时 如果私库需要登录则要创建一个secret ,如下:
kubectl create secret docker-registry docker.hbg.io --docker-server=docker.hbg.io --docker-username=【你的用户名】 --docker-password=【用户名密码】 --docker-email=【邮箱】
2. docker build 镜像
2.1 maven 打jar包
mvn install2.2 编写Dockerfile
[root@master eureka]# pwd /root/apps/eureka [root@master eureka]# ll 总用量 39112 -rwxrwxrwx 1 root root 118 10月 12 11:26 build.sh -rwxrwxrwx 1 root root 40039685 10月 12 13:00 cloud-eureka-server-1.0.0.jar -rwxrwxrwx 1 root root 182 10月 12 11:22 Dockerfile [root@master eureka]# cat Dockerfile FROM java:8 VOLUME /tmp ADD *.jar app.jar RUN sh -c 'touch /app.jar' ENV JAVA_OPTS="" CMD exec java $JAVA_OPTS -Djava.security.egd=file:/dev/./urandom -jar /app.jar [root@master eureka]# cat build.sh docker build -t docker.hbg.io/cdchen/eureka:1.0.0 /root/apps/eureka && docker push docker.hbg.io/cdchen/eureka:1.0.0
开始build
[root@master eureka]# ./build.sh Sending build context to Docker daemon 40.04 MB Step 1 : FROM java:8 Trying to pull repository docker.io/library/java ... 8: Pulling from docker.io/library/java 5040bd298390: Pull complete fce5728aad85: Pull complete 76610ec20bf5: Pull complete 60170fec2151: Pull complete e98f73de8f0d: Pull complete 11f7af24ed9c: Pull complete 49e2d6393f32: Pull complete bb9cdec9c7f3: Pull complete Digest: sha256:c1ff613e8ba25833d2e1940da0940c3824f03f802c449f3d1815a66b7f8c0e9d ---> d23bdf5b1b1b Step 2 : VOLUME /tmp ---> Running in c922ea759ecd ---> 90e6bfb979be Removing intermediate container c922ea759ecd Step 3 : ADD *.jar app.jar ---> 22693545d892 Removing intermediate container 1eae1ee6e02e Step 4 : RUN sh -c 'touch /app.jar' ---> Running in 4a3f242329a7 ---> 7655007ab702 Removing intermediate container 4a3f242329a7 Step 5 : ENV JAVA_OPTS "" ---> Running in f2e6a37c62e9 ---> 463cb7c6074d Removing intermediate container f2e6a37c62e9 Step 6 : CMD exec java $JAVA_OPTS -Djava.security.egd=file:/dev/./urandom -jar /app.jar ---> Running in 299051efb456 ---> 54c5b40ddedf Removing intermediate container 299051efb456 Successfully built 54c5b40ddedf The push refers to a repository [docker.hbg.io/cdchen/eureka] de6598ca7626: Pushed 818fc746fd69: Pushed 35c20f26d188: Pushed c3fe59dd9556: Pushed 6ed1a81ba5b6: Pushed a3483ce177ce: Pushed ce6c8756685b: Pushed 30339f20ced0: Pushed 0eb22bfb707d: Pushed a2ae92ffcd29: Pushed 1.0.0: digest: sha256:430e3db388ecc253acd64c97eae3b169732dc1c98e79e2c2f29c1aba679bbaec size: 2424
3. k8s部署镜像
3.1 部署
使用 k8s webUI部署 如下图点击 SHOW ADVANCED OPTIONS选择拉取镜像的秘钥
找到image pull secret
点击DEPLOY
4. 验证部署结果
查看nodePort# kubectl describe service/cloud-eureka-server Name: cloud-eureka-server Namespace: default Labels: app=cloud-eureka-server version=1.0.0 Selector: app=cloud-eureka-server,version=1.0.0 Type: LoadBalancer IP: 10.254.247.31 Port: tcp-8888-8888-c73x7 8888/TCP NodePort: tcp-8888-8888-c73x7 31427/TCP Endpoints: 172.17.26.2:8888 Session Affinity: None No events.
在 node1 和 node2 中执行docker ps 看pod运行在哪一台上。
浏览器访问:
http://node2:31427/
如下图,证明启动成功
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