# https://download.docker.com/linux/centos/7/x86_64/stable/Packages/

# wget https://download.docker.com/linux/centos/7/x86_64/stable/Packages/docker-ce-18.06.0.ce-3.el7.x86_64.rpm 

# 下载阿里的docker-ce源
# cd /etc/yum.repos.d/ && wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

# yum -y install docker-ce-18.06.0.ce-3.el7.x86_64.rpm

# mkdir -p /etc/docker/

# cat  >/etc/docker/daemon.json<<EOF

{

  "registry-mirrors": ["https://registry.docker-cn.com"]

}

EOF

# vim /usr/lib/systemd/system/docker.service 

[Unit]

Description=Docker Application Container Engine

Documentation=https://docs.docker.com

BindsTo=containerd.service

After=network-online.target firewalld.service containerd.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 --graph /home/meisoo/docker --insecure-registry=172.17.29.74 -H fd:// --containerd=/run/containerd/containerd.sock

ExecReload=/bin/kill -s HUP $MAINPID

TimeoutSec=

RestartSec=

Restart=always

# Note that StartLimit* options were moved from "Service" to "Unit" in systemd .

# Both the old, and new location are accepted by systemd  and up, so using the old location

# to make them work for either version of systemd.

StartLimitBurst=

# Note that StartLimitInterval was renamed to StartLimitIntervalSec in systemd .

# Both the old, and new name are accepted by systemd  and up, so using the old name to make

# this option work for either version of systemd.

StartLimitInterval=60s

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

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

LimitNOFILE=infinity

LimitNPROC=infinity

LimitCORE=infinity

# Comment TasksMax if your systemd version does not support it.

# Only systemd  and above support this option.

TasksMax=infinity

# 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

[Install]

WantedBy=multi-user.target

systemctl start docker.service

# docker version

Client:

 Version:           18.06.-ce

 API version:       1.38

 Go version:        go1.10.3

 Git commit:        0ffa825

 Built:             Wed Jul  ::

 OS/Arch:           linux/amd64

 Experimental:      false

Server:

 Engine:

  Version:          18.06.-ce

  API version:      1.38 (minimum version 1.12)

  Go version:       go1.10.3

  Git commit:       0ffa825

  Built:            Wed Jul  ::

  OS/Arch:          linux/amd64

  Experimental:     false