docker环境配置

一.docker远程环境配置

1.1 完成docker安装

参照：centos docker 安装指南
1）卸载老版本docker文件

 $ sudo yum remove docker \
                  docker-client \
                  docker-client-latest \
                  docker-common \
                  docker-latest \
                  docker-latest-logrotate \
                  docker-logrotate \
                  docker-engine

2）安装yum工具包

 $ sudo yum install -y yum-utils

3）设置docker镜像仓库

$ sudo yum-config-manager \
    --add-repo \
    https://download.docker.com/linux/centos/docker-ce.repo

4）安装docker engine

$ sudo yum install docker-ce docker-ce-cli containerd.io

启动docker

$ sudo systemctl start docker

docker 安装结束。

1.2 docker配置

1）docker开启远程API
方式一：
使用vi编辑器修改docker.service文件
vi /usr/lib/systemd/system/docker.service
修改
ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
为
ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix://var/run/docker.sock
方式二
在daemon.json中添加
"hosts":["tcp://0.0.0.0:2375","unix:///var/run/docker.sock"]
2）重启docker服务
$ systemctl restart docker
使用方式二需要在重启前执行：systemctl daemon-reload
3）开通防火墙
$ firewall-cmd --zone=public --add-port=2375/tcp --permanentfirewall-cmd --reload

1.3 Docker支持http上传镜像

不上传可不进行配置

1）在daemon.json中添加
"insecure-registries":["192.168.0.43:8082"]

2）重启docker服务
$ systemctl daemon-reload
$ systemctl restart docker

二、本地环境配置

2.1 window系统添加环境变量

环境变量

2.2 pom.xml引入插件

dockerfile-maven-plugin

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.5.1</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>cn.sinocontrol</groupId>
    <artifactId>hello</artifactId>
    <version>0.0.2</version>
    <name>hello</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
        <!-- 私服地址-->
        <docker.image.prefix>192.168.0.43:8082</docker.image.prefix>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>com.spotify</groupId>
                <artifactId>dockerfile-maven-plugin</artifactId>
                <version>1.4.13</version>
                <executions>
                    <execution>
                        <id>default</id>
                        <goals>
                            <!-- dockerfile:build 构建docker镜像-->
                            <goal>build</goal>
                            <!-- dockerfile：push 上传至私服-->
                            <goal>push</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <!--私服用户名-->
                    <username>docker</username>
                    <!--私服用户名-->
                    <password>123456</password>
                    <!--私服连接地址-->
                    <repository>${docker.image.prefix}/${project.artifactId}</repository>
                    <tag>${project.version}</tag>
                    <buildArgs>
                        <JAR_FILE>${project.build.finalName}.jar</JAR_FILE>
                    </buildArgs>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

2）编写Dockerfile
可参考：Dockerfile指南

FROM java:8
ARG JAR_FILE
ADD target/${JAR_FILE} /app.jar
ENTRYPOINT ["java", "-jar","/app.jar"]

3）使用mvn clean package进行镜像打包上传

maven整合dockerfile