docker

1.docker开启远程访问

修改文件 /lib/systemd/system/docker.service 中
ExecStart=/usr/bin/dockerd -H unix:// -> ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix://var/run/docker.sock

2.关闭防火墙或通行端口

systemctl start firewalld 开启
systemctl stop firewalld 关闭
systemctl enable firewalld 开机启动
sytemctl disable firewalld 关闭并禁止开机启动
systemctl status firewalld或者 firewall-cmd --state
firewall-cmd --zone=public --add-port=80/tcp(永久生效再加上 --permanent)

3.新建文件Dockerfile

拷贝需要的文件到此目录

4.mvn package 构建jar

5.docker build

docker build -t imageTag .

6.run

docker run -p 3012:8082 first-demo

maven docker 插件构建

mvn package docker:build

docker_host

export DOCKER_HOST="tcp://ip:port"