Docker的安装_daemon.json daemon.conf

(一)Docker的安装

$ 1、更新update到最新的版本
yum update
$ 2、卸载老版本docker
yum remove docker docker-common docker-selinux docker-engine
$ 3、安装需要的软件包
yum install -y yum-utils device-mapper-persistent-data lvm2
$ 4、设置yum源
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-
ce.repo
$ 5、查看docker版本
yum list docker-ce --showduplicates|sort -r
$ 6、安装docker
yum install docker-ce-18.03.1.ce -y
# 查看docker的进程
ps -aux | grep docker
$ 7、启动docker
systemctl start docker
$ 8、加入开机自启
systemctl enable docker
$ 9、配置国内镜像
vi /etc/docker/daemon.json
{
 "registry-mirrors": ["https://cr.console.aliyun.com/"]
}
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(二)安装失败解决方案

2.1 启动docker失败

[root@dockercentos ~]# systemctl start docker
Job for docker.service failed because start of the service was attempted too often. See "systemctl status docker.service" and "journalctl -xe" for details.
To force a start use "systemctl reset-failed docker.service" followed by "systemctl start docker.service" again.
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2.2 解决方案

修改 daemon.json改成 daemon.conf

mv /etc/docker/daemon.json /etc/docker/daemon.conf
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查看docker服务是否启动

# 查看docker服务是否启动
[root@dockercentos /]# systemctl status docker.service
● docker.service - Docker Application Container Engine
   Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; vendor preset: disabled)
   Active: active (running) since 二 2021-04-20 14:15:31 CST; 6min ago
     Docs: https://docs.docker.com
 Main PID: 2058 (dockerd)
    Tasks: 15
   Memory: 71.1M
   CGroup: /system.slice/docker.service
           └─2058 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
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