Docker 部署SpringBoot项目整合 Redis 镜像做访问计数Demo

最终效果如下

大概就几个步骤

1.安装 Docker CE
2.运行 Redis 镜像
3.Java 环境准备
4.项目准备
5.编写 Dockerfile
6.发布项目
7.测试服务

环境准备

系统：Ubuntu 17.04 x64
Docker 17.12.0-ce
IP:45.32.31.101

一、安装 Docker CE

国内不建议使用:“脚本进行安装”,会下载安装很慢,使用步骤 1 安装，看下面的链接：常规安装方式

1.常规安装方式

Ubuntu 17.04 x64 安装 Docker CE

2.脚本进行安装

国内安装不建议使用脚本：

安装Docker CE

$ curl -fsSL get.docker.com -o get-docker.sh
$ sudo sh get-docker.sh

<output truncated>

If you would like to use Docker as a non-root user, you should now consider
adding your user to the "docker" group with something like:

  sudo usermod -aG docker your-user

Remember that you will have to log out and back in for this to take effect!

WARNING: Adding a user to the "docker" group will grant the ability to run
         containers which can be used to obtain root privileges on the
         docker host.
         Refer to https://docs.docker.com/engine/security/security/#docker-daemon-attack-surface
         for more information.

验证Docker CE

通过运行hello-world 镜像验证是否正确安装了Docker CE

1	$ sudo docker run hello-world

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root@souyunku:~# sudo docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
hello-world         latest              f2a91732366c        7 weeks ago         1.85kB

二、运行 Redis 镜像

1.运行镜像

1	$ docker run --name redis-6379 -p 6379:6379 -d redis

Unable to find image 'redis:latest' locally
latest: Pulling from library/redis
c4bb02b17bb4: Pull complete 
58638acf67c5: Pull complete 
f98d108cc38b: Pull complete 
83be14fccb07: Pull complete 
5d5f41793421: Pull complete 
ed89ff0d9eb2: Pull complete 
Digest: sha256:0e773022cd6572a5153e5013afced0f7191652d3cdf9b1c6785eb13f6b2974b1
Status: Downloaded newer image for redis:latest
2f1f20f672e386a61644e1c08232ea34bdfd6a0c244b55fa833fcfd6dd207288

2.检查镜像

查看镜像

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root@souyunku:~# docker images redis
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
redis               latest              1e70071f4af4        4 weeks ago         107MB

查看镜像进程

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root@souyunku:~# docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
2f1f20f672e3        redis               "docker-entrypoint.s…"   14 seconds ago      Up 14 seconds       0.0.0.0:6379->6379/tcp   redis-6379

查看容器进程

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root@souyunku:~# docker container ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
2f1f20f672e3        redis               "docker-entrypoint.s…"   7 minutes ago       Up 7 minutes        0.0.0.0:6379->6379/tcp   redis-6379

3.测试Redis服务

通过 redis-cli 连接Redis 服务，测试存储数据

root@souyunku:~# docker run -it --link redis-6379:redis --rm redis redis-cli -h redis -p 6379
redis:6379> set count 1
OK
redis:6379> get count
"1"
redis:6379> exit
root@souyunku:~#

三、Java 环境准备

注意:阅读以下步骤！！！

1.Java 环境是为了，编译Github Maven SpringBoot 示例项目，准备
2.或者自己在本地编译好上传也行，那么以下Java 环境，安装:Jdk,Maven,Git,就可以不用配置

1.安装 Jdk

下载JDK 方式：1

下载Linux环境下的jdk1.8

下载JDK 方式：2

我在百度云盘分下的链接：YPSuperKey Brokenhttp://pan.baidu.com/s/1jIFZF9s 密码：u4n4

下载JDK 方式：3

使用wget下载，

$ wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/8u141-b15/336fa29ff2bb4ef291e347e091f7f4a7/jdk-8u141-linux-x64.tar.gz"

注意，如果使用：下载JDK 方式：3

那么以下步骤的，jdk1.8.0_144替换成jdk1.8.0_141

开始安装

上传在 /opt 目录

解压

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$ cd /opt
$ tar zxvf jdk-8u144-linux-x64.tar.gz
$ mv jdk1.8.0_144/ /lib/jvm

配置环境变量

$ vi /etc/profile
#jdk
export JAVA_HOME=/lib/jvm
export JRE_HOME=${JAVA_HOME}/jre   
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib   
export PATH=${JAVA_HOME}/bin:$PATH

使环境变量生效

1	$ source /etc/profile

验证

root@souyunku:~# java -version
java version "1.8.0_141"
Java(TM) SE Runtime Environment (build 1.8.0_141-b15)
Java HotSpot(TM) 64-Bit Server VM (build 25.141-b15, mixed mode)

2.安装 Maven

1	$ apt-get install maven

验证Maven

root@souyunku:~# mvn -v
Apache Maven 3.3.9
Maven home: /usr/share/maven
Java version: 1.8.0_141, vendor: Oracle Corporation
Java home: /lib/jvm/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "4.10.0-35-generic", arch: "amd64", family: "unix"

3.安装 Git

1	$ apt-get install git

验证Git

1 2	root@souyunku:~# git --version git version 2.11.0

四、项目准备

1.编译项目

1.自己在服务器Maven编译项目

使用 git 克隆项目

1	$ git clone https://github.com/souyunku/other-projects.git

使用 maven 编译项目

1	$ cd other-projects/docker-spring-boot-demo/

2.修改项目

修改 Redis 服务器地址spring.redis.host=45.32.44.217,为本地IP, 在运行 Redis 镜像时候已经把 Redis 做成外网服务了0.0.0.0:6379->6379/tcp

1	$ vi src/main/resources/application.properties

Redis服务器地址

1	spring.redis.host=45.32.44.217

1	$ mvn package

复制target/ 目录下的docker-spring-boot-demo-0.0.1-SNAPSHOT.jar项目到/opt 目录稍后会用到

$ cp target/docker-spring-boot-demo-0.0.1-SNAPSHOT.jar /opt/

2.自己在本地Maven编译项目，然后上传到/opt 目录稍后会用到

修改application.properties 的 Redis 服务器地址

1	other-projects/docker-spring-boot-demo/src/main/resources/application.properties

Redis服务器地址

1	spring.redis.host=45.32.44.217

五、编写 Dockerfile

编写 Dockerfile 基于java:8镜像为基础

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$ cd /opt/
$ touch Dockerfile
$ vi Dockerfile

编辑内容个如下

# 基于哪个镜像
FROM java:8

# 将本地文件夹挂载到当前容器
VOLUME /tmp

# 拷贝文件到容器，也可以直接写成ADD docker-spring-boot-demo-0.0.1-SNAPSHOT.jar /souyunku-app.jar
ADD docker-spring-boot-demo-0.0.1-SNAPSHOT.jar souyunku-app.jar
RUN bash -c 'touch /souyunku-app.jar'

# 开放80端口
EXPOSE 80

# 配置容器启动后执行的命令
ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/souyunku-app.jar"]

六、发布项目

1.编译镜像

1 2	$ cd /opt/ $ docker build -t souyunku-app:v1 .

看到如下信息，就证明你的Dockerfile写的没毛病，而且镜像也编译成功了

Sending build context to Docker daemon  18.72MB
Step 1/6 : 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 2/6 : VOLUME /tmp
 ---> Running in 0559a62b0cd5
Removing intermediate container 0559a62b0cd5
 ---> b1f3846913a4
Step 3/6 : ADD docker-spring-boot-demo-0.0.1-SNAPSHOT.jar souyunku-app.jar
 ---> 9f60dad5d2ac
Step 4/6 : RUN bash -c 'touch /souyunku-app.jar'
 ---> Running in 39d5c09ab614
Removing intermediate container 39d5c09ab614
 ---> 2b691adf7922
Step 5/6 : EXPOSE 80
 ---> Running in 11a577437a23
Removing intermediate container 11a577437a23
 ---> 78815d6fe6b2
Step 6/6 : ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/souyunku-app.jar"]
 ---> Running in eca10fed3d02
Removing intermediate container eca10fed3d02
 ---> 8ec4e85a0f05
Successfully built 8ec4e85a0f05
Successfully tagged souyunku-app:v1

2.查看镜像

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root@souyunku:/opt# docker images souyunku-app
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
souyunku-app        v1                  8ec4e85a0f05        2 minutes ago       681MB

3.运行镜像

后台守护进程运行，然后把容器端口映射到，外网端口80

1 2	root@souyunku:/opt# docker run --name MySpringBoot -d -p 80:80 souyunku-app:v1 e68d438603619e363883d4eae65d3918e1c3e00f867731207bccf06f5690dc64

4.查看进程

查看容器进程，可以看到redis 在 6379端口，MySpringBoot 项目在 80端口

root@souyunku:/opt# docker container ps
CONTAINER ID        IMAGE               COMMAND                  CREATED              STATUS              PORTS                    NAMES
e68d43860361        souyunku-app:v1     "java -Djava.securit…"   About a minute ago   Up About a minute   0.0.0.0:80->80/tcp       MySpringBoot
0f9646171edd        redis               "docker-entrypoint.s…"   39 minutes ago       Up 39 minutes       0.0.0.0:6379->6379/tcp   redis-6379