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                ## 4 Docker的安裝 ### [](#41-安裝dockercentos7x)4.1 安裝docker(centos7.x) * 卸載原始docker ~~~sh $ sudo yum remove docker \ docker-client \ docker-client-latest \ docker-common \ docker-latest \ docker-latest-logrotate \ docker-logrotate \ docker-engine ~~~ * 安裝docker依賴 ~~~shell $ sudo yum install -y yum-utils \ device-mapper-persistent-data \ lvm2 ~~~ * 設置docker的yum源 ~~~bash $ sudo yum-config-manager \ --add-repo \ https://download.docker.com/linux/centos/docker-ce.repo ~~~ * 安裝最新版的docker ~~~bash $ sudo yum install docker-ce docker-ce-cli containerd.io ~~~ * 指定版本安裝docker ~~~bash $ yum list docker-ce --showduplicates | sort -r $ sudo yum install docker-ce-<VERSION_STRING> docker-ce-cli-<VERSION_STRING> containerd.io $ sudo yum install docker-ce-18.09.5-3.el7 docker-ce-cli-18.09.5-3.el7 containerd.io ~~~ * 啟動docker ~~~bash $ sudo systemctl enable docker $ sudo systemctl start docker ~~~ * 關閉docker ~~~bash $ sudo systemctl stop docker ~~~ * 測試docker安裝 ~~~bash $ sudo docker run hello-world ~~~ ### [](#42-bash安裝通用所有平臺)4.2 bash安裝(通用所有平臺) * 在測試或開發環境中 Docker 官方為了簡化安裝流程,提供了一套便捷的安裝腳本,CentOS 系統上可以使用這套腳本安裝,另外可以通過`--mirror`選項使用國內源進行安裝:執行這個命令后,腳本就會自動的將一切準備工作做好,并且把 Docker 的穩定(stable)版本安裝在系統中。 ~~~bash $ curl -fsSL get.docker.com -o get-docker.sh $ sudo sh get-docker.sh --mirror Aliyun ~~~ * 啟動docker ~~~bash $ sudo systemctl enable docker $ sudo systemctl start docker ~~~ * 創建docker用戶組 ~~~bash $ sudo groupadd docker ~~~ * 將當前用戶加入docker組 ~~~bash $ sudo usermod -aG docker $USER ~~~ * 測試docker安裝是否正確 ~~~bash $ docker run hello-world ~~~ ### 6.2 docker配置阿里云鏡像加速 * `訪問阿里云登錄自己賬號查看docker鏡像加速服務` ~~~shell sudo mkdir -p /etc/docker sudo tee /etc/docker/daemon.json <<-'EOF' { "registry-mirrors": ["https://lz2nib3q.mirror.aliyuncs.com"] } EOF sudo systemctl daemon-reload sudo systemctl restart docker ~~~ * `驗證docker的鏡像加速是否生效` ~~~shell [root@localhost ~]# docker info .......... 127.0.0.0/8 Registry Mirrors: 'https://lz2nib3q.mirror.aliyuncs.com/' Live Restore Enabled: false Product License: Community Engine ~~~
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