1.编写Dockerfile

进入项目目录：

cd /var/apps/my-app

编写Dockerfile

vim Dockerfile

Dockerfile文件内容

# 基镜像java8 FROM java:8 # 作者 MAINTAINER jeikerxiao # 添加my-app-0.0.1.jar 到容器镜像中，并重命名 app.jar ADD my-app-0.0.1.jar app.jar # 运行容器，监听8080端口 EXPOSE 8080 # 启动时运行 java -jar app.jar ENTRYPOINT ["java","-jar","/app.jar"]

2.编译镜像

build当前目录下的Dockerfile 文件，命名为wisely/my-app。

➜ docker build -t wisely/my-app .

构建过程 ：

Sending build context to Docker daemon 28.88MB Step 1/5 : FROM java:8 8: Pulling from 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 Status: Downloaded newer image for java:8 ---> d23bdf5b1b1b Step 2/5 : MAINTAINER jeikerxiao ---> Running in beda82b0d593 ---> cc1e343348b6 Removing intermediate container beda82b0d593 Step 3/5 : ADD my-app-0.0.1.jar app.jar ---> 603da4e8c0f0 Removing intermediate container 7f72c9eb16a8 Step 4/5 : EXPOSE 8080 ---> Running in 1fdd169fe9cc ---> 410b920c0879 Removing intermediate container 1fdd169fe9cc Step 5/5 : ENTRYPOINT java -jar /app.jar ---> Running in 7f4405748fbf ---> f6a29955727e Removing intermediate container 7f4405748fbf Successfully built f6a29955727e Successfully tagged wisely/my-app:latest

3.查看镜像

➜ docker images REPOSITORY TAG IMAGE ID CREATED SIZE wisely/my-app latest f6a29955727e 4 minutes ago 672MB java 8 d23bdf5b1b1b 5 months ago 643MB hello-world latest 48b5124b2768 5 months ago 1.84kB

4.运行镜像

运行命令，–name 重命名：-p 端口暴露 当前服务器端口：容器端口 镜像名。

➜ docker run -d --name my-app -p 8088:8080 wisely/my-app cb9022fd451eb05eba014ce6fb79144f6b50309742cf2bdbe1de638cdef351bf

5.查看容器状态

➜ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES cb9022fd451e wisely/my-app "java -jar /app.jar" 12 seconds ago Up 10 seconds 0.0.0.0:8088->8080/tcp my-app

6.测试项目

http://192.168.191.32:8080/