docker java 环境_java 访问docker的环境

1.   配置环境

新增 ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix://var/run/docker.sock

root@ros-OptiPlex-3050:~# nano /lib/systemd/system/docker.service

root@ros-OptiPlex-3050:~# cat  /lib/systemd/system/docker.service

[Unit]

Description=Docker Application Container Engine

Documentation=https://docs.docker.com

After=network-online.target docker.socket firewalld.service

Wants=network-online.target

Requires=docker.socket

[Service]

Type=notify

# the default is not to use systemd for cgroups because the delegate issues still

# exists and systemd currently does not support the cgroup feature set required

# for containers run by docker

ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix://var/run/docker.sock

ExecReload=/bin/kill -s HUP $MAINPID

LimitNOFILE=1048576

# Having non-zero Limit*s causes performance problems due to accounting overhead

# in the kernel. We recommend using cgroups to do container-local accounting.

LimitNPROC=infinity

LimitCORE=infinity

# Uncomment TasksMax if your systemd version supports it.

# Only systemd 226 and above support this version.

TasksMax=infinity

TimeoutStartSec=0

# set delegate yes so that systemd does not reset the cgroups of docker containers

Delegate=yes

# kill only the docker process, not all processes in the cgroup

KillMode=process

# restart the docker process if it exits prematurely

Restart=on-failure

StartLimitBurst=3

StartLimitInterval=60s

[Install]

WantedBy=multi-user.target

重启docker

root@ros-OptiPlex-3050:~# service docker reload

Warning: docker.service changed on disk. Run ‘systemctl daemon-reload‘ to reload units.

root@ros-OptiPlex-3050:~# systemctl daemon-reload

root@ros-OptiPlex-3050:~# systemctl docker restart

Unknown operation docker.

root@ros-OptiPlex-3050:~# service docker restart

检测配置的端口

root@ros-OptiPlex-3050:~# netstat -antp | grep 2375

tcp6       0      0 :::2375                 :::*                    LISTEN      19143/dockerd

2. Java访问客户端

加载docker-java的jar

com.github.docker-java

docker-java

3.0.14

初始化客户端访问

DockerClient dockerClient = DockerClientBuilder.getInstance().build();