linux安装docker - 立flag网

linux安装docker

1、用yum源安装

查看是否安装命令

yum list installed | grep docker

安装docker命令

yum -y install docker

-y表示不询问安装

启动docker命令

systemctl start docker

查看docker服务状态

systemctl status docker

2、离线安装模式

上传或者下载安装包

wget https://download.docker.com/linux/static/stable/x86_64/docker-18.06.3-ce.tgz

解压 复制到目录

tar -zxvf docker-18.06.3-ce.tgz
cp docker/* /usr/bin/

在/etc/systemd/system/目录下新增docker.service文件 这样可以将docker注册为service服务

[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target firewalld.service
Wants=network-online.target
  
[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 --selinux-enabled=false --insecure-registry=127.0.0.1
ExecReload=/bin/kill -s HUP $MAINPID
# 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
# 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

授权

chmod +x /etc/systemd/system/docker.service 

启动docker

重新加载配置文件 systemctl daemon-reload

启动systemctl start docker

systemctl daemon-reload

systemctl start docker

设置开机启动

systemctl enable docker.service

3、docker命令

进入镜像命令docker exec -it 89c5b9c81e74 bash

启动容器 docker run --name nginx

停止容器 docker stop nginx

删除容器 docker rm nginx

信息查看 docker info

[root@10-9-25-182 ~]# docker info
Containers: 0
 Running: 0
 Paused: 0
 Stopped: 0
Images: 0
Server Version: 18.06.3-ce
Storage Driver: overlay2
 Backing Filesystem: xfs
 Supports d_type: true
 Native Overlay Diff: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
 Volume: local
 Network: bridge host macvlan null overlay
 Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 468a545b9edcd5932818eb9de8e72413e616e86e
runc version: a592beb5bc4c4092b1b1bac971afed27687340c5
init version: fec3683
Security Options:
 seccomp
  Profile: default
Kernel Version: 4.18.0-147.5.1.el8_1.x86_64
Operating System: CentOS Linux 8 (Core)
OSType: linux
Architecture: x86_64
CPUs: 1
Total Memory: 1.701GiB
Name: 10-9-15-182
ID: 3VIG:ANXE:JRSP:OXY6:QJJG:UI4F:XFFE:GJO2:KRKX:INJJ:NTPN:BTRK
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
Insecure Registries:
 127.0.0.1
 127.0.0.0/8
Live Restore Enabled: false

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