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k8s部署java项目

Lfei5120 人气:0

下载jar的包

[root@master test]# wget https://dl.halo.run/release/halo-1.4.16.jar
[root@master ~]# ls
anaconda-ks.cfg  flannel.yml  halo-1.4.16.jar  init
[root@master ~]# 

编写Dockerfile并制作镜像

[root@master ~]# mkdir -p test/files
[root@master ~]# mv halo-1.4.16.jar test/files/
[root@master ~]# cd test/
[root@master test]# touch Dockerfile
[root@master test]# ls
Dockerfile  files
[root@master test]# 
[root@master test]# cat Dockerfile 
FROM centos

COPY files/halo-1.4.16.jar /usr/local/halo-1.4.16.jar

ENTRYPOINT ["java","-jar","/usr/local/halo-1.4.16.jar"]
[root@master test]# 
[root@master test]# docker build -t 3199560936/halo:v1 .
Sending build context to Docker daemon  79.63MB
Step 1/3 : FROM centos
 ---> 5d0da3dc9764
Step 2/3 : COPY files/halo-1.4.16.jar /usr/local/halo-1.4.16.jar
 ---> 099645e57a21
Step 3/3 : ENTRYPOINT ["java","-jar","/usr/local/halo-1.4.16.jar"]
 ---> Running in d1e44734578c
Removing intermediate container d1e44734578c
 ---> a38d07129607
Successfully built a38d07129607
Successfully tagged 3199560936/halo:v1
[root@master test]# docker images
REPOSITORY                                                        TAG        IMAGE ID       CREATED         SIZE
3199560936/halo                                                   v1         a38d07129607   3 seconds ago   311MB
[root@master test]# 

上传镜像到docker仓库

[root@master ~]# docker login
[root@master ~]# docker push 3199560936/halo:v1
The push refers to repository [docker.io/3199560936/halo]
5906a49ee250: Pushed 
74ddd0ec08fa: Mounted from library/centos 
v1: digest: sha256:fb8cb538526b4d73e1a16b9b1b8a3e4ab4b171f0dbaadfbf6673def9620367f2 size: 741
[root@master ~]# 

编写k8s的资源清单

[root@master test]# cat halo.yml 
apiVersion: apps/v1
kind: Deployment
metadata:
  name: halo
  labels:
    app: halo
spec:
  replicas: 1
  selector:
    matchLabels:
      app: halo
  template:
    metadata:
      name: halo
      labels:
        app: halo
    spec:
      containers:
      - image: 3199560936/halo:v1
        imagePullPolicy: IfNotPresent
        name: halo
---
apiVersion: v1
kind: Service
metadata:
  name: halo
spec:
  ports:
  - port: 8090
    targetPort: 8090
    nodePort: 32767
  selector:
    app: halo
  type: NodePort
[root@master test]# 

创建

[root@master test]# kubectl apply -f halo.yml
deployment.apps/halo created
service/halo created

查看

[root@master test]# kubectl get deploy,pod,svc
NAME                   READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/halo   1/1     1            1           32s

NAME                        READY   STATUS    RESTARTS   AGE
pod/halo-6d4cb5dc7b-nzdpw   1/1     Running   0          32s

NAME                 TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)          AGE
service/halo         NodePort    10.106.13.87   <none>        8090:32767/TCP   32s
service/kubernetes   ClusterIP   10.96.0.1      <none>        443/TCP          46h

使用本机IP:32767访问

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