Centos8.1安装docker

yum方式安装

• 安装依赖

[root@lucky ~]# yum install -y yum-utils  device-mapper-persistent-data  lvm2

• 添加仓库

[root@lucky ~]#  yum-config-manager  --add-repo   https://download.docker.com/linux/centos/docker-ce.repo
[root@iZrj987jhi4cl38mj8px0eZ ~]# dnf install https://download.docker.com/linux/centos/7/x86_64/stable/Packages/containerd.io-1.2.6-3.3.el7.x86_64.rpm

• 安装最新版本的 Docker Engine-Community 和 containerd

[root@lucky ~]# yum install docker-ce docker-ce-cli  -y

• 启动服务

[root@iZrj987jhi4cl38mj8px0eZ ~]# systemctl start docker
[root@iZrj987jhi4cl38mj8px0eZ ~]# systemctl enable docker
Created symlink /etc/systemd/system/multi-user.target.wants/docker.service → /usr/lib/systemd/system/docker.service.

• 配置镜像加速器

[root@iZrj987jhi4cl38mj8px0eZ ~]# sudo mkdir -p /etc/docker
[root@iZrj987jhi4cl38mj8px0eZ ~]# 
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://00s5k4m1.mirror.aliyuncs.com"]
}
EOF
[root@iZrj987jhi4cl38mj8px0eZ ~]# sudo systemctl daemon-reload
[root@iZrj987jhi4cl38mj8px0eZ ~]# sudo systemctl restart docker

RPM 安装

• 下载docker-ce-cli

[root@iZrj987jhi4cl38mj8px0eZ ~]# wget https://download.docker.com/linux/centos/7/x86_64/stable/Packages/docker-ce-cli-19.03.9-3.el7.x86_64.rpm
[root@iZrj987jhi4cl38mj8px0eZ ~]# yum install docker-ce-cli-19.03.9-3.el7.x86_64.rpm -y

• 下载docker

[root@iZrj987jhi4cl38mj8px0eZ ~]# wget https://download.docker.com/linux/centos/7/x86_64/stable/Packages/docker-ce-19.03.9-3.el7.x86_64.rpm
[root@iZrj987jhi4cl38mj8px0eZ ~]# dnf install https://download.docker.com/linux/centos/7/x86_64/stable/Packages/containerd.io-1.2.6-3.3.el7.x86_64.rpm
[root@iZrj987jhi4cl38mj8px0eZ ~]# yum install -y docker-ce-19.03.9-3.el7.x86_64.rpm

• 启动服务

[root@iZrj987jhi4cl38mj8px0eZ ~]# systemctl start docker
[root@iZrj987jhi4cl38mj8px0eZ ~]# systemctl enable docker
Created symlink /etc/systemd/system/multi-user.target.wants/docker.service → /usr/lib/systemd/system/docker.service.

• 加速器

[root@iZrj987jhi4cl38mj8px0eZ ~]# sudo mkdir -p /etc/docker
[root@iZrj987jhi4cl38mj8px0eZ ~]# 
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://00s5k4m1.mirror.aliyuncs.com"]
}
EOF
[root@iZrj987jhi4cl38mj8px0eZ ~]# sudo systemctl daemon-reload
[root@iZrj987jhi4cl38mj8px0eZ ~]# sudo systemctl restart docker

二进制安装

[root@iZrj987jhi4cl38mj8px0eZ ~]# wget https://download.docker.com/linux/static/stable/x86_64/docker-19.03.9.tgz
[root@iZrj987jhi4cl38mj8px0eZ ~]# tar zxf docker-19.03.9.tgz 
[root@iZrj987jhi4cl38mj8px0eZ ~]#  cp -a docker/* /usr/bin/
[root@iZrj987jhi4cl38mj8px0eZ ~]#  chmod 755 /usr/bin/{containerd,containerd-shim,ctr,docker,dockerd,docker-init,docker-proxy,runc}

• 创建docker的systemd unit文件

[root@iZrj987jhi4cl38mj8px0eZ ~]# vim /etc/systemd/system/docker.service
[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target firewalld.service containerd.service
Wants=network-online.target
 
[Service]
Type=notify
ExecStart=/usr/bin/dockerd
ExecReload=/bin/kill -s HUP $MAINPID
TimeoutSec=0
RestartSec=2
Restart=always
StartLimitBurst=3
StartLimitInterval=60s
LimitNOFILE=infinity
LimitNPROC=infinity
LimitCORE=infinity
TasksMax=infinity
Delegate=yes
KillMode=process
 
[Install]
WantedBy=multi-user.target

• 启动

[root@iZrj987jhi4cl38mj8px0eZ ~]# systemctl daemon-reload
[root@iZrj987jhi4cl38mj8px0eZ ~]# systemctl start docker
[root@iZrj987jhi4cl38mj8px0eZ ~]# systemctl enable docker
Created symlink /etc/systemd/system/multi-user.target.wants/docker.service → /etc/systemd/system/docker.service.
[root@iZrj987jhi4cl38mj8px0eZ ~]# systemctl status docker
● docker.service - Docker Application Container Engine
   Loaded: loaded (/etc/systemd/system/docker.service; enabled; vendor preset: disabled)
   Active: active (running) since Sat 2020-06-13 16:34:56 CST; 12s ago
     Docs: https://docs.docker.com
 Main PID: 3093 (dockerd)
    Tasks: 18
   Memory: 30.9M
   CGroup: /system.slice/docker.service
           ├─3093 /usr/bin/dockerd
           └─3100 containerd --config /var/run/docker/containerd/containerd.toml --log-level info

6月 13 16:34:56 iZrj987jhi4cl38mj8px0eZ dockerd[3093]: time="2020-06-13T16:34:56.016942822+08:00" level=info msg="ClientConn switching balancer to \"pick_first\"" module=grpc
6月 13 16:34:56 iZrj987jhi4cl38mj8px0eZ dockerd[3093]: time="2020-06-13T16:34:56.087396381+08:00" level=warning msg="Your kernel does not support cgroup blkio weight"
6月 13 16:34:56 iZrj987jhi4cl38mj8px0eZ dockerd[3093]: time="2020-06-13T16:34:56.087429346+08:00" level=warning msg="Your kernel does not support cgroup blkio weight_device"
6月 13 16:34:56 iZrj987jhi4cl38mj8px0eZ dockerd[3093]: time="2020-06-13T16:34:56.087604192+08:00" level=info msg="Loading containers: start."
6月 13 16:34:56 iZrj987jhi4cl38mj8px0eZ dockerd[3093]: time="2020-06-13T16:34:56.335135110+08:00" level=info msg="Default bridge (docker0) is assigned with an IP address 172.17.0.0/16. Daemon option --bip >
6月 13 16:34:56 iZrj987jhi4cl38mj8px0eZ dockerd[3093]: time="2020-06-13T16:34:56.450708028+08:00" level=info msg="Loading containers: done."
6月 13 16:34:56 iZrj987jhi4cl38mj8px0eZ dockerd[3093]: time="2020-06-13T16:34:56.518093214+08:00" level=info msg="Docker daemon" commit=9d988398e7 graphdriver(s)=overlay2 version=19.03.9
6月 13 16:34:56 iZrj987jhi4cl38mj8px0eZ dockerd[3093]: time="2020-06-13T16:34:56.518515655+08:00" level=info msg="Daemon has completed initialization"
6月 13 16:34:56 iZrj987jhi4cl38mj8px0eZ dockerd[3093]: time="2020-06-13T16:34:56.557843966+08:00" level=info msg="API listen on /var/run/docker.sock"
6月 13 16:34:56 iZrj987jhi4cl38mj8px0eZ systemd[1]: Started Docker Application Container Engine.

• 配置镜像加速

[root@iZrj987jhi4cl38mj8px0eZ ~]# sudo mkdir -p /etc/docker
[root@iZrj987jhi4cl38mj8px0eZ ~]# 
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://00s5k4m1.mirror.aliyuncs.com"]
}
EOF
[root@iZrj987jhi4cl38mj8px0eZ ~]# sudo systemctl daemon-reload
[root@iZrj987jhi4cl38mj8px0eZ ~]# sudo systemctl restart docker