应用程序镜像制作
准备好应用程序
[root@VM_8_24_centos testapp]# ls
Dockerfile testapp.tar.gz
编写Dockerfile
[root@VM_8_24_centos testapp]# cat Dockerfile
# 基础镜像
FROM core-harbor.minminmsn.com/public/jre-centos:1.8.0_212
# 维护信息
MAINTAINER minyt <minyongtao@minminmsn.com>
# 文件复制到镜像
RUN mkdir -p /data1/testapp-app && mkdir -p /data1/logs/testapp-app && mkdir -p /data1/run/testapp-app
ADD testapp.tar.gz /data1/testapp-app/
# 设置环境变量
# ENV JAVA_HOME /usr/local/jre1.8.0_212
# ENV PATH ${PATH}:${JAVA_HOME}/bin
# 容器启动时运行的命令
CMD ["/data1/testapp-app/bin/launch.sh", "start"]
# 暴漏端口
EXPOSE 10030
制作应用程序镜像
[root@VM_8_24_centos testapp]# docker build -t core-harbor.minminmsn.com/public/testapp:2.0 .
Sending build context to Docker daemon 58.24MB
Step 1/6 : FROM core-harbor.minminmsn.com/public/jre-centos:1.8.0_212
---> f27d47159f1e
Step 2/6 : MAINTAINER minyt <minyongtao@minminmsn.com>
---> Using cache
---> 3d2b8caf725b
Step 3/6 : RUN mkdir -p /data1/testapp-app && mkdir -p /data1/logs/testapp-app && mkdir -p /data1/run/testapp-app
---> Running in 8034eb452bfa
Removing intermediate container 8034eb452bfa
---> eea12a3c6093
Step 4/6 : ADD testapp.tar.gz /data1/testapp-app/
---> 1d155c1cd571
Step 5/6 : CMD ["/data1/testapp-app/bin/launch.sh", "start"]
---> Running in c7dab4cffaf9
Removing intermediate container c7dab4cffaf9
---> 45a1da4c0742
Step 6/6 : EXPOSE 10030
---> Running in 2618620aa185
Removing intermediate container 2618620aa185
---> b1d3a82bb34d
Successfully built b1d3a82bb34d
Successfully tagged core-harbor.minminmsn.com/public/testapp:2.0
本地启动镜像测试
[root@VM_8_24_centos testapp]# docker run -d -p 10030:10030 core-harbor.minminmsn.com/public/testapp:2.0
ce1cf6f8e29554187d8fc810f94e35b80ca0902d0e8fc7d43bc7f5fa5d9a7dc2
[root@VM_8_24_centos testapp]# netstat -tulpn |grep 10030
tcp6 0 0 :::10030 :::* LISTEN 28037/docker-proxy
浏览器访问测试
http://10.2.8.24:10030/
{"returncode":0,"message":"OK"}
上传到私有镜像库
[root@VM_8_24_centos testapp]# docker push core-harbor.minminmsn.com/public/testapp:2.0
The push refers to repository [core-harbor.minminmsn.com/public/testapp]
04b815b81c42: Pushed
8dae5abda95b: Pushed
b9049811dc7d: Layer already exists
89169d87dbe2: Layer already exists
2.0: digest: sha256:db7f866ec3f531161c2f6a82667f03896657c34ccaf25b310d519abac175c25e size: 1160
[root@VM_8_24_centos testapp]#
在kubernetes上发布应用
准备testapp.yaml文件
[root@elasticsearch01 testapp]# cat testapp.yaml
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
labels:
app.kubernetes.io/name: testapp
app.kubernetes.io/part-of: ingress-nginx
name: testapp
namespace: ingress-nginx
spec:
selector:
matchLabels:
app.kubernetes.io/name: testapp
app.kubernetes.io/part-of: ingress-nginx
strategy:
rollingUpdate:
maxSurge: 1
maxUnavailable: 1
type: RollingUpdate
template:
metadata:
labels:
app.kubernetes.io/name: testapp
app.kubernetes.io/part-of: ingress-nginx
spec:
containers:
- image: core-harbor.minminmsn.com/public/testapp:2.0
name: testapp
ports:
- containerPort: 10030
protocol: TCP
restartPolicy: Always
volumes:
- emptyDir: {}
name: data
---
apiVersion: v1
kind: Service
metadata:
name: testapp
namespace: ingress-nginx
labels:
app.kubernetes.io/name: testapp
app.kubernetes.io/part-of: ingress-nginx
spec:
ports:
- port: 10030
protocol: TCP
targetPort: 10030
selector:
app.kubernetes.io/name: testapp
app.kubernetes.io/part-of: ingress-nginx
type: NodePort
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: testapp-ingress
namespace: ingress-nginx
spec:
rules:
- host: testapp.minminmsn.com
http:
paths:
- path: /
backend:
serviceName: testapp
servicePort: 10030
部署应用
[root@elasticsearch01 testapp]# kubectl create -f testapp.yaml
deployment.extensions/testapp created
service/testapp created
ingress.extensions/testapp-ingress created
网友评论