centos7安装docker

yum install -y yum-utils device-mapper-persistent-data lvm2
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
yum install -y docker-ce
systemctl start docker
systemctl enable docker

docker volumes 位置

1	var/lib/docker/volumes

拉去镜像

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docker pull jenkinsci/blueocean
或
docker pull jenkins/jenkins

启动jenkins镜像

docker run -u root --rm -d -p 8080:8080 -p 50000:50000  -v /usr/bin/docker:/usr/bin/docker -v /var/run/docker.sock:/var/run/docker.sock -v /usr/bin/mv:/usr/bin/mv -v /usr/java/jdk1.8.0_212-amd64:/usr/java/jdk1.8.0_212-amd64  -v /usr/maven/maven-3.6.1:/usr/maven/maven-3.6.1  -v /var/jenkins_home:/var/jenkins_home  jenkinsci/blueocean

启动springboot项目

1	docker run -v /etc/localtime:/etc/localtime:ro -p 8080:8080 -e "SPRING_PROFILES_ACTIVE=test" -d --add-host mysql.dxrj.cn:192.168.1.194 --name mall --restart=always --net=host mall

docker迁移存储文件位置

1.新建目标文件夹
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mkdir -p /mnt/vdb1/docker/lib

2.迁移原来的文件到目标文件夹

1	rsync -avz /var/lib/docker /mnt/vdb1/docker/lib

3.编辑配置文件（不存在就新建）

1 2	mkdir -p /etc/systemd/system/docker.service.d/ vi /etc/systemd/system/docker.service.d/devicemapper.conf

文件内容如下

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[Service]
ExecStart=
ExecStart=/usr/bin/dockerd --graph=/mnt/vdb1/docker/lib/docker

4.重新加载 docker

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systemctl daemon-reload
systemctl restart docker
systemctl enable docker