一,安装docker

1,服务器安装 docker

yum install docker

直接yum安装版本太低

2,卸载:老版本的Docker在yum中名称为docker或docker-engine,通过下面命令卸载docker和相关依赖

yum remove docker \
docker-common \
docker-selinux \
docker-engine

3,新的Docker CE在yum中被称为docker-ce。(因为分化为docker-ce和docker-ee,后者为企业版)设置yum docker repository 指定版本安装

(1),搭建Docker CE的REPOSITORY

# Install required packages. yum-utils provides the yum-config-manager utility, and device-mapper-persistent-data and lvm2 are required by the devicemapper storage driver.
yum install -y yum-utils \
device-mapper-persistent-data \
lvm2
# Use the following command to set up the stable repository. You always need the stablerepository, even if you want to install builds from the edge or test repositories as well.
yum-config-manager \
--add-repo \
https://download.docker.com/linux/centos/docker-ce.repo

(2),下面这个例子是使用sort -r 命令来排序docker-ce的版本,从高到低。

yum list docker-ce --showduplicates | sort -r

(3) 安装命令

# Install the latest version of Docker CE, or go to the next step to install a specific version.
yum install docker-ce

yum install docker-ce-18.06..ce

3,使用Docker 中国加速器

vim  /etc/docker/daemon.json

添加下面代码

{
"registry-mirrors": ["https://registry.docker-cn.com"],
"live-restore": true
}

(这个文件 初始状态是空的 只有“{}”)

启动服务

systemctl start docker
systemctl restart docker
systemctl stop docker

查看版本

 docker version

查看状态

service docker status

二,开启docker远程访问

vim  /etc/sysconfig/docker

在下面代码中添加红色部分

# /etc/sysconfig/docker

# Modify these options if you want to change the way the docker daemon runs
OPTIONS='--selinux-enabled --log-driver=journald --signature-verification=false'
if [ -z "${DOCKER_CERT_PATH}" ]; then
DOCKER_CERT_PATH=/etc/docker
fi DOCKER_OPTS="-H unix:///var/run/docker.sock -H 0.0.0.0:2376" # Do not add registries in this file anymore. Use /etc/containers/registries.conf
# instead. For more information reference the registries.conf() man page. # Location used for temporary files, such as those created by
# docker load and build operations. Default is /var/lib/docker/tmp
# Can be overriden by setting the following environment variable.
# DOCKER_TMPDIR=/var/tmp # Controls the /etc/cron.daily/docker-logrotate cron job status.
# To disable, uncomment the line below.
# LOGROTATE=false # docker-latest daemon can be used by starting the docker-latest unitfile.
# To use docker-latest client, uncomment below lines
#DOCKERBINARY=/usr/bin/docker-latest
#DOCKERDBINARY=/usr/bin/dockerd-latest
#DOCKER_CONTAINERD_BINARY=/usr/bin/docker-containerd-latest
#DOCKER_CONTAINERD_SHIM_BINARY=/usr/bin/docker-containerd-shim-latest

修改服务配置:

vim /lib/systemd/system/docker.service

在下面代码中添加红色部分

[Unit]
Description=Docker Application Container Engine
Documentation=http://docs.docker.com
After=network.target
Wants=docker-storage-setup.service
Requires=docker-cleanup.timer [Service]
Type=notify
NotifyAccess=main
EnvironmentFile=-/run/containers/registries.conf
EnvironmentFile=-/etc/sysconfig/docker
EnvironmentFile=-/etc/sysconfig/docker-storage
EnvironmentFile=-/etc/sysconfig/docker-network
Environment=GOTRACEBACK=crash
Environment=DOCKER_HTTP_HOST_COMPAT=1
Environment=PATH=/usr/libexec/docker:/usr/bin:/usr/sbin
ExecStart=/usr/bin/dockerd-current \
--add-runtime docker-runc=/usr/libexec/docker/docker-runc-current \
--default-runtime=docker-runc \
--exec-opt native.cgroupdriver=systemd \
--userland-proxy-path=/usr/libexec/docker/docker-proxy-current \
--init-path=/usr/libexec/docker/docker-init-current \
--seccomp-profile=/etc/docker/seccomp.json \
$OPTIONS \
$DOCKER_STORAGE_OPTIONS \
$DOCKER_NETWORK_OPTIONS \
$ADD_REGISTRY \
$BLOCK_REGISTRY \
$INSECURE_REGISTRY \
$REGISTRIES \
$DOCKER_OPTS
ExecReload=/bin/kill -s HUP $MAINPID
LimitNOFILE=1048576
LimitNPROC=1048576
LimitCORE=infinity
TimeoutStartSec=0
Restart=on-abnormal
KillMode=process [Install]
WantedBy=multi-user.target

重启docker网络

systemctl daemon-reload

重启docker服务

systemctl restart docker

 在浏览器输入:http://xxx.xxx.xxx:2376/info 或http://xxx.xxx.xxx:2376/version 显示版本信息表示开启成功

配置pom.xml

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion> <groupId>cn.meylink.test</groupId>
<artifactId>docker</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging> <name>docker</name>
<description>Demo project for Spring Boot</description> <parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.0.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent> <properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version> <docker.image.prefix>springboot</docker.image.prefix> </properties> <dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<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>
<!-- Docker maven plugin -->
<plugin>
<groupId>com.spotify</groupId>
<artifactId>docker-maven-plugin</artifactId>
<version>1.2.0</version>
<configuration>
<imageName>${docker.image.prefix}/${project.artifactId}</imageName>
<baseImage>java</baseImage>
<dockerHost>http://39.105.164.124:2376</dockerHost>
<!--<entryPoint>["java", "-jar", "/${project.build.finalName}.jar"]</entryPoint>-->
<!-- copy the service's jar file from target into the root directory of the image -->
<resources>
<resource>
<targetPath>/</targetPath>
<directory>${project.build.directory}</directory>
<include>${project.build.finalName}.jar</include>
</resource>
</resources>
</configuration>
</plugin> <!-- Docker maven plugin -->
</plugins>
</build> </project>

查看远程服务器镜像

docker images

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