docker的安装
Docker 是管理容器的工具, Docker 不等于 容器。
docker yum源设置
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| step 1 download docker-ce.repo file
wget https://download.docker.com/linux/centos/docker-ce.repo -P /etc/yum.repos.d/
--2020-09-06 20:46:09-- https://download.docker.com/linux/centos/docker-ce.repo 正在解析主机 download.docker.com (download.docker.com)... 13.35.50.117, 13.35.50.10, 13.35.50.93, ... 正在连接 download.docker.com (download.docker.com)|13.35.50.117|:443... 已连接。 已发出 HTTP 请求,正在等待回应... 200 OK 长度:2424 (2.4K) [binary/octet-stream] 正在保存至: “/etc/yum.repos.d/docker-ce.repo.1”
100%[==================================================>] 2,424 --.-K/s 用时 0s
2020-09-06 20:46:09 (210 MB/s) - 已保存 “/etc/yum.repos.d/docker-ce.repo.1” [2424/2424])
step 2 change docker yum repo from tsinghua web
sed -i 's#download.docker.com#mirrors.tuna.tsinghua.edu.cn/docker-ce#g' /etc/yum.repos.d/docker-ce.repo
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卸载旧版本docker
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| yum remove docker docker-client docker-client-latest docker-common docker-latest docker-latest-logrotate docker-logrotate docker-engine
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安装docker
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| yum -y install https://download.docker.com/linux/centos/7/x86_64/stable/Packages/containerd.io-1.2.6-3.3.el7.x86_64.rpm
yum -y install docker-ce
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启动docker
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| systemctl enable docker
Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.
systemctl start docker
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验证启动
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| systemctl status docker ● docker.service - Docker Application Container Engine Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; vendor preset: disabled) Active: active (running) since 四 2020-09-06 20:53:12 EST; 14s ago Docs: https://docs.docker.com Main PID: 1584 (dockerd) Tasks: 12 Memory: 60.7M CGroup: /system.slice/docker.service └─1584 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
11月 14 20:53:12 mnqz dockerd[1584]: time="2020-09-06T20:53:12.366007531-05:00" level=info msg="scheme \"unix\" not registered, fallback to defau...odule=grpc 11月 14 20:53:12 mnqz dockerd[1584]: time="2020-09-06T20:53:12.366028377-05:00" level=info msg="ccResolverWrapper: sending update to cc: {[{unix:...odule=grpc 11月 14 20:53:12 mnqz dockerd[1584]: time="2020-09-06T20:53:12.366036593-05:00" level=info msg="ClientConn switching balancer to \"pick_first\"" module=grpc 11月 14 20:53:12 mnqz dockerd[1584]: time="2020-09-06T20:53:12.404043665-05:00" level=info msg="Loading containers: start." 11月 14 20:53:12 mnqz dockerd[1584]: time="2020-09-06T20:53:12.547472878-05:00" level=info msg="Default bridge (docker0) is assigned with an IP a...P address" 11月 14 20:53:12 mnqz dockerd[1584]: time="2020-09-06T20:53:12.588359436-05:00" level=info msg="Loading containers: done." 11月 14 20:53:12 mnqz dockerd[1584]: time="2020-09-06T20:53:12.733704268-05:00" level=info msg="Docker daemon" commit=a872fc2f86 graphdriver(s)=o...on=19.03.3 11月 14 20:53:12 mnqz dockerd[1584]: time="2020-09-06T20:53:12.733826656-05:00" level=info msg="Daemon has completed initialization" 11月 14 20:53:12 mnqz systemd[1]: Started Docker Application Container Engine. 11月 14 20:53:12 mnqz dockerd[1584]: time="2020-09-06T20:53:12.753929596-05:00" level=info msg="API listen on /var/run/docker.sock" Hint: Some lines were ellipsized, use -l to show in full.
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验证版本
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Docker version 19.03.1, build 74b1e89
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