• k8s1.24 部署springboot项目

    1. k8s 1.24.x集群环境中   master节点需安装 docker环境

    2. 在/opt/docker 目录下上传 springboot  JAR包 。 编写Dockerfile文件

    把springboot包 上传到/opt/docker  下

     

     本人项目 端口 8081

    Dockerfile暴露8081端口

    vi Dockerfile

    1. FROM java:8
    2. MAINTAINER zq  
    3. VOLUME /tmp    
    4. ADD common-0.0.1-SNAPSHOT.jar demo.jar   
    5. RUN bash -c 'touch /demo.jar'
    6. ENTRYPOINT ["java","-jar","/demo.jar"]
    7. EXPOSE 8081   

    上传完成与编写Dockerfile完成效果图：

    3.在当前目录下 打包镜像

    docker build -t demo:1.0 .

    4.自己运行测试：

    docker run -d -p 8081:8081 demo:1.0

    看是否能运行成功。

    5.登录自己的dockerHub

    [root@master docker]# docker login

    登录dockerhub  ,打tag镜像，推送镜像到dockerhub

    docker tag 镜像id 用户名/镜像名称:版本号
    docker push 用户名/镜像名称:版本号


    docker tag 0696d2e82f48 heidaodageshiwo/demo:1.0
    docker push heidaodageshiwo/demo:1.0
     

    6.登录自己docekerhub查看是否推送成功镜像：

    7.查看当前k8s镜像仓库中并没有  刚才上传的镜像

    8.进入dockerhub查看上传镜像：

    拉取镜像：docker pull heidaodageshiwo/demo:1.0

    k8s 1.24版本使用   crictl pull heidaodageshiwo/demo:1.0   拉取镜像(

    把docker换成 crictl ) 

    看到镜像已经在  当前命名空间下：

    9.本机器命令：

    1.  
    2. [root@master docker]# vi Dockerfile
    3. [root@master docker]# docker build -t demo:1.0 .
    4. Sending build context to Docker daemon  26.78MB
    5. Step 1/7 : FROM java:8
    6. 8: Pulling from library/java
    7. 5040bd298390: Pull complete 
    8. fce5728aad85: Pull complete 
    9. 76610ec20bf5: Pull complete 
    10. 60170fec2151: Pull complete 
    11. e98f73de8f0d: Pull complete 
    12. 11f7af24ed9c: Pull complete 
    13. 49e2d6393f32: Pull complete 
    14. bb9cdec9c7f3: Pull complete 
    15. Digest: sha256:c1ff613e8ba25833d2e1940da0940c3824f03f802c449f3d1815a66b7f8c0e9d
    16. Status: Downloaded newer image for java:8
    17.  ---> d23bdf5b1b1b
    18. Step 2/7 : MAINTAINER zq
    19.  ---> Running in 53a67a6f03b9
    20. Removing intermediate container 53a67a6f03b9
    21.  ---> 3b18bb3da9e8
    22. Step 3/7 : VOLUME /tmp
    23.  ---> Running in 342c0bc5f02e
    24. Removing intermediate container 342c0bc5f02e
    25.  ---> a501a838d0a1
    26. Step 4/7 : ADD common-0.0.1-SNAPSHOT.jar demo.jar
    27.  ---> 718be419cca3
    28. Step 5/7 : RUN bash -c 'touch /demo.jar'
    29.  ---> Running in ed41bdb91fa4
    30. Removing intermediate container ed41bdb91fa4
    31.  ---> 4c87a3541bfb
    32. Step 6/7 : ENTRYPOINT ["java","-jar","/demo.jar"]
    33.  ---> Running in 1712e351f016
    34. Removing intermediate container 1712e351f016
    35.  ---> 022cf13c85c9
    36. Step 7/7 : EXPOSE 8081
    37.  ---> Running in 331249034e13
    38. Removing intermediate container 331249034e13
    39.  ---> 0696d2e82f48
    40. Successfully built 0696d2e82f48
    41. Successfully tagged demo:1.0
    42. [root@master docker]# docker run -d -p 8081:8081 demo:1.0
    43. 02f5ea6548252d8ac6d25baed43fa27036f6e8f30446f5882f965391ba909028
    44. [root@master docker]# docker ps
    45. CONTAINER ID   IMAGE      COMMAND                 CREATED         STATUS         PORTS                                       NAMES
    46. 02f5ea654825   demo:1.0   "java -jar /demo.jar"   4 seconds ago   Up 2 seconds   0.0.0.0:8081->8081/tcp, :::8081->8081/tcp   serene_hopper
    47. [root@master docker]# docker images
    48. REPOSITORY   TAG       IMAGE ID       CREATED          SIZE
    49. demo         1.0       0696d2e82f48   58 seconds ago   697MB
    50. java         8         d23bdf5b1b1b   5 years ago      643MB
    51. [root@master docker]# docker rm -f 02f5ea654825
    52. 02f5ea654825
    53. [root@master docker]# docker ps -a
    54. CONTAINER ID   IMAGE     COMMAND   CREATED   STATUS    PORTS     NAMES
    55. [root@master docker]# docker iamges
    56. docker: 'iamges' is not a docker command.
    57. See 'docker --help'
    58. [root@master docker]# docker images
    59. REPOSITORY   TAG       IMAGE ID       CREATED              SIZE
    60. demo         1.0       0696d2e82f48   About a minute ago   697MB
    61. java         8         d23bdf5b1b1b   5 years ago          643MB
    62. [root@master docker]# docker login
    63. Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://hub.docker.com to create one.
    64. Username: heidaodageshiwo
    65. Password: 
    66. WARNING! Your password will be stored unencrypted in /root/.docker/config.json.
    67. Configure a credential helper to remove this warning. See
    68. https://docs.docker.com/engine/reference/commandline/login/#credentials-store
    70. Login Succeeded
    71. [root@master docker]# docker images
    72. REPOSITORY   TAG       IMAGE ID       CREATED         SIZE
    73. demo         1.0       0696d2e82f48   2 minutes ago   697MB
    74. java         8         d23bdf5b1b1b   5 years ago     643MB
    75. [root@master docker]# docker tag 0696d2e82f48 heidaodageshiwo/demo:1.0
    76. [root@master docker]# docker images
    77. REPOSITORY             TAG       IMAGE ID       CREATED         SIZE
    78. heidaodageshiwo/demo   1.0       0696d2e82f48   4 minutes ago   697MB
    79. demo                   1.0       0696d2e82f48   4 minutes ago   697MB
    80. java                   8         d23bdf5b1b1b   5 years ago     643MB
    81. [root@master docker]# docker push heidaodageshiwo/demo:1.0
    82. The push refers to repository [docker.io/heidaodageshiwo/demo]
    83. 527bd9dadf74: Pushed 
    84. f5b6bd9d054c: Pushed 
    85. 35c20f26d188: Mounted from library/java 
    86. c3fe59dd9556: Mounted from library/java 
    87. 6ed1a81ba5b6: Mounted from library/java 
    88. a3483ce177ce: Mounted from library/java 
    89. ce6c8756685b: Mounted from library/java 
    90. 30339f20ced0: Mounted from library/java 
    91. 0eb22bfb707d: Mounted from library/java 
    92. a2ae92ffcd29: Mounted from library/java 
    93. 1.0: digest: sha256:006e9d9d6a34d99617d0d8e938fbd883cb42f84dd83c09ca9728fe13c4008fb9 size: 2424
    94. [root@master docker]# crictl iamges
    95. No help topic for 'iamges'
    96. [root@master docker]# crictl images
    97. IMAGE                                                             TAG                 IMAGE ID            SIZE
    98. docker.io/calico/cni                                              v3.23.2             a87d3f6f1b8fd       111MB
    99. docker.io/calico/node                                             v3.23.2             a3447b26d32c7       77.8MB
    100. docker.io/library/nginx                                           latest              670dcc86b69df       56.7MB
    101. registry.aliyuncs.com/google_containers/coredns                   v1.8.6              a4ca41631cc7a       13.6MB
    102. registry.aliyuncs.com/google_containers/etcd                      3.5.3-0             aebe758cef4cd       102MB
    103. registry.aliyuncs.com/google_containers/kube-apiserver            v1.24.0             529072250ccc6       33.8MB
    104. registry.aliyuncs.com/google_containers/kube-controller-manager   v1.24.0             88784fb4ac2f6       31MB
    105. registry.aliyuncs.com/google_containers/kube-proxy                v1.24.0             77b49675beae1       39.5MB
    106. registry.aliyuncs.com/google_containers/kube-scheduler            v1.24.0             e3ed7dee73e93       15.5MB
    107. registry.aliyuncs.com/google_containers/pause                     3.7                 221177c6082a8       311kB
    108. [root@master docker]# crictl pull heidaodageshiwo/demo:1.0
    109. Image is up to date for sha256:0696d2e82f48a36fb155691fe8c3a8bc35c52ce5c3236620e2e7fba13fa16aeb
    110. [root@master docker]# crictl images
    111. IMAGE                                                             TAG                 IMAGE ID            SIZE
    112. docker.io/calico/cni                                              v3.23.2             a87d3f6f1b8fd       111MB
    113. docker.io/calico/node                                             v3.23.2             a3447b26d32c7       77.8MB
    114. docker.io/heidaodageshiwo/demo                                    1.0                 0696d2e82f48a       292MB
    115. docker.io/library/nginx                                           latest              670dcc86b69df       56.7MB
    116. registry.aliyuncs.com/google_containers/coredns                   v1.8.6              a4ca41631cc7a       13.6MB
    117. registry.aliyuncs.com/google_containers/etcd                      3.5.3-0             aebe758cef4cd       102MB
    118. registry.aliyuncs.com/google_containers/kube-apiserver            v1.24.0             529072250ccc6       33.8MB
    119. registry.aliyuncs.com/google_containers/kube-controller-manager   v1.24.0             88784fb4ac2f6       31MB
    120. registry.aliyuncs.com/google_containers/kube-proxy                v1.24.0             77b49675beae1       39.5MB
    121. registry.aliyuncs.com/google_containers/kube-scheduler            v1.24.0             e3ed7dee73e93       15.5MB
    122. registry.aliyuncs.com/google_containers/pause                     3.7                 221177c6082a8       311kB
    123. [root@master docker]# crictl pull java:8
    124. Image is up to date for sha256:d23bdf5b1b1b1afce5f1d0fd33e7ed8afbc084b594b9ccf742a5b27080d8a4a8
    125. [root@master docker]# crictl images
    126. IMAGE                                                             TAG                 IMAGE ID            SIZE
    127. docker.io/calico/cni                                              v3.23.2             a87d3f6f1b8fd       111MB
    128. docker.io/calico/node                                             v3.23.2             a3447b26d32c7       77.8MB
    129. docker.io/heidaodageshiwo/demo                                    1.0                 0696d2e82f48a       292MB
    130. docker.io/library/java                                            8                   d23bdf5b1b1b1       243MB
    131. docker.io/library/nginx                                           latest              670dcc86b69df       56.7MB
    132. registry.aliyuncs.com/google_containers/coredns                   v1.8.6              a4ca41631cc7a       13.6MB
    133. registry.aliyuncs.com/google_containers/etcd                      3.5.3-0             aebe758cef4cd       102MB
    134. registry.aliyuncs.com/google_containers/kube-apiserver            v1.24.0             529072250ccc6       33.8MB
    135. registry.aliyuncs.com/google_containers/kube-controller-manager   v1.24.0             88784fb4ac2f6       31MB
    136. registry.aliyuncs.com/google_containers/kube-proxy                v1.24.0             77b49675beae1       39.5MB
    137. registry.aliyuncs.com/google_containers/kube-scheduler            v1.24.0             e3ed7dee73e93       15.5MB
    138. registry.aliyuncs.com/google_containers/pause                     3.7                 221177c6082a8       311kB
    139. [root@master docker]#

    10.空运行测试生成我们的yaml文件
    1）命令：
         kubectl create deployment deployment名称 --image=我们项目的镜像名称 --dry-run -o yaml > 要生成的yaml文件
         注意：--dry-run表示空运行测试，不会真正的运行
                   -o 表示测试输出
    2）执行命令生成我们的yaml模板
          命令：kubectl create deployment springboot-k8s --image=docker.io/heidaodageshiwo/demo:1.0 --dry-run -o yaml > deploy.yaml

    对上面生成的deploy.yaml文件进行修改，让它使用本地的镜像，因为它默认是去中心仓库拉取镜像的

     加入：imagePullPolicy: "IfNotPresent"

    1. apiVersion: apps/v1
    2. kind: Deployment
    3. metadata:
    4.   creationTimestamp: null
    5.   labels:
    6.     app: springboot-k8s
    7.   name: springboot-k8s
    8. spec:
    9.   replicas: 1
    10.   selector:
    11.     matchLabels:
    12.       app: springboot-k8s
    13.   strategy: {}
    14.   template:
    15.     metadata:
    16.       creationTimestamp: null
    17.       labels:
    18.         app: springboot-k8s
    19.     spec:
    20.       containers:
    21.       - image: docker.io/heidaodageshiwo/demo:1.0
    22.         name: demo
    23.         imagePullPolicy: "IfNotPresent"
    24.         resources: {}
    25. status: {}

    11.运行：

    [root@master docker]# kubectl apply -f deploy.yaml

    12.查看：

    13.看到已经运行成功：

    暴露3万端口也可以写service.yml文件方式：

    kubectl expose deployment springboot-k8s --port=8081 --type=NodePort


    1. [root@master docker]# kubectl expose deployment springboot-k8s --port=8081 --type=NodePort
    2. service/springboot-k8s exposed
    3. [root@master docker]# kubectl get svc
    4. NAME             TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)          AGE
    5. kubernetes       ClusterIP   10.96.0.1                443/TCP          11d
    6. springboot-k8s   NodePort    10.109.223.141           8081:30395/TCP   5s
    7. [root@master docker]#

    14.访问：

    我的springboot 访问接口

    界面访问：暴露的30395端口

    springboot-k8s   NodePort    10.109.223.141          8081:30395/TCP   5s
     

     15.本机命令：

    1.  
    2. [root@master docker]# ll
    3. 总用量 26152
    4. -rw-r--r-- 1 root root 26775474 7月  29 16:23 common-0.0.1-SNAPSHOT.jar
    5. -rw-r--r-- 1 root root      168 7月  29 16:22 Dockerfile
    6. [root@master docker]# kubectl create deployment springboot-k8s --image=docker.io/heidaodageshiwo/demo:1.0 --dry-run -o yaml > deploy.yaml
    7. W0729 16:46:32.594741   18750 helpers.go:636] --dry-run is deprecated and can be replaced with --dry-run=client.
    8. [root@master docker]# ls
    9. common-0.0.1-SNAPSHOT.jar  deploy.yaml  Dockerfile
    10. [root@master docker]# kubectl apply -f deploy.yaml
    11. deployment.apps/springboot-k8s created
    12. [root@master docker]# kubectl get po
    13. NAME                              READY   STATUS              RESTARTS   AGE
    14. springboot-k8s-645899cbc4-8dqvm   0/1     ContainerCreating   0          6s
    15. [root@master docker]# kubectl get po
    16. NAME                              READY   STATUS              RESTARTS   AGE
    17. springboot-k8s-645899cbc4-8dqvm   0/1     ContainerCreating   0          10s
    18. [root@master docker]# kubectl get po
    19. NAME                              READY   STATUS              RESTARTS   AGE
    20. springboot-k8s-645899cbc4-8dqvm   0/1     ContainerCreating   0          11s
    21. [root@master docker]# kubectl get po
    22. NAME                              READY   STATUS              RESTARTS   AGE
    23. springboot-k8s-645899cbc4-8dqvm   0/1     ContainerCreating   0          12s
    24. [root@master docker]# kubectl get po
    25. NAME                              READY   STATUS              RESTARTS   AGE
    26. springboot-k8s-645899cbc4-8dqvm   0/1     ContainerCreating   0          13s
    27. [root@master docker]# kubectl get po
    28. NAME                              READY   STATUS              RESTARTS   AGE
    29. springboot-k8s-645899cbc4-8dqvm   0/1     ContainerCreating   0          31s
    30. [root@master docker]# kubectl get po -o wide
    31. NAME                              READY   STATUS              RESTARTS   AGE   IP       NODE    NOMINATED NODE   READINESS GATES
    32. springboot-k8s-645899cbc4-8dqvm   0/1     ContainerCreating   0          35s      node2              
    33. [root@master docker]# kubectl get po -o wide
    34. NAME                              READY   STATUS              RESTARTS   AGE   IP       NODE    NOMINATED NODE   READINESS GATES
    35. springboot-k8s-645899cbc4-8dqvm   0/1     ContainerCreating   0          95s      node2              
    36. [root@master docker]# kubectl get po -o wide
    37. NAME                              READY   STATUS              RESTARTS   AGE   IP       NODE    NOMINATED NODE   READINESS GATES
    38. springboot-k8s-645899cbc4-8dqvm   0/1     ContainerCreating   0          98s      node2              
    39. [root@master docker]# kubectl get po -o wide
    40. NAME                              READY   STATUS              RESTARTS   AGE   IP       NODE    NOMINATED NODE   READINESS GATES
    41. springboot-k8s-645899cbc4-8dqvm   0/1     ContainerCreating   0          99s      node2              
    42. [root@master docker]# kubectl get po -o wide
    43. NAME                              READY   STATUS              RESTARTS   AGE     IP       NODE    NOMINATED NODE   READINESS GATES
    44. springboot-k8s-645899cbc4-8dqvm   0/1     ContainerCreating   0          2m15s      node2              
    45. [root@master docker]# kubectl get po -o wide
    46. NAME                              READY   STATUS    RESTARTS   AGE     IP             NODE    NOMINATED NODE   READINESS GATES
    47. springboot-k8s-645899cbc4-8dqvm   1/1     Running   0          2m46s   10.244.104.3   node2              
    48. [root@master docker]# kubectl get po -o wide
    49. NAME                              READY   STATUS    RESTARTS   AGE     IP             NODE    NOMINATED NODE   READINESS GATES
    50. springboot-k8s-645899cbc4-8dqvm   1/1     Running   0          2m48s   10.244.104.3   node2              
    51. [root@master docker]# kubectl get po -o wide
    52. NAME                              READY   STATUS    RESTARTS   AGE     IP             NODE    NOMINATED NODE   READINESS GATES
    53. springboot-k8s-645899cbc4-8dqvm   1/1     Running   0          2m49s   10.244.104.3   node2              
    54. [root@master docker]# kubectl expose deployment springboot-k8s --port=8081 --type=NodePort
    55. service/springboot-k8s exposed
    56. [root@master docker]# kubectl get svc
    57. NAME             TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)          AGE
    58. kubernetes       ClusterIP   10.96.0.1                443/TCP          11d
    59. springboot-k8s   NodePort    10.109.223.141           8081:30395/TCP   5s
    60. [root@master docker]#

    16.看到 本项目被调度到node2 节点：

    查看node2节点镜像：可以看到 demo 与java8镜像都已经拉取到了本空间中

    17.结束

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  • 原文地址：https://blog.csdn.net/hunheidaode/article/details/126059715