docker离线和在线安装

一.docker环境

1.在线安装

###########centos在线安装############# #1.更新yum源 wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo yum clean all yum makecache #2.添加docker国内镜像源 yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo #3.安装docker yum -y install docker-ce docker-ce-cli containerd.io ##########ubuntu在线安装######### apt install -y docker.io

2.离线安装

#1.自己准备docker离线包，本文自带 dockerBin.zip #2.解压移动文件 unzip dockerBin.zip cp ./docker/* /usr/bin/ #启动程序 cp ./docker/docker.service /etc/systemd/system #开机自启文件，末尾有，第4小节 #3.启动docker、开机自启、查看docker启动状态 systemctl daemon-reload #重新加载systemctl文件 systemctl start docker && systemctl enable docker && systemctl status docker #4.docker.service文件如下 cat docker.service [Unit] Description=Docker Application Container Engine Documentation=https://docs.docker.com # BindsTo=containerd.service After=network-online.target firewalld.service # containerd.service Wants=network-online.target # Requires=docker.socket [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 EnvironmentFile=-/etc/sysconfig/docker EnvironmentFile=-/etc/sysconfig/docker-storage EnvironmentFile=-/etc/sysconfig/docker-network Environment=GOTRACEBACK=crash ExecStart=/usr/bin/dockerd $OPTIONS \ $DOCKER_STORAGE_OPTIONS \ $DOCKER_NETWORK_OPTIONS \ $INSECURE_REGISTRY # -H fd:// --containerd=/run/containerd/containerd.sock ExecReload=/bin/kill -s HUP $MAINPID TimeoutSec=0 RestartSec=2 Restart=always # Note that StartLimit* options were moved from "Service" to "Unit" in systemd 229. # Both the old, and new location are accepted by systemd 229 and up, so using the old location # to make them work for either version of systemd. StartLimitBurst=3 # Note that StartLimitInterval was renamed to StartLimitIntervalSec in systemd 230. # Both the old, and new name are accepted by systemd 230 and up, so using the old name to make # this option work for either version of systemd. StartLimitInterval=60s # 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 # Comment TasksMax if your systemd version does not support it. # Only systemd 226 and above support this option. TasksMax=infinity # 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 [Install] WantedBy=multi-user.target

3.docker镜像加速配置

#编写/etc/docker/daemon.json配置文件 #1.基础版本，完全够用 tee /etc/docker/daemon.json <<-'EOF' { "registry-mirrors": ["https://ej3odski.mirror.aliyuncs.com"] } EOF #2.不理解不要配 tee /etc/docker/daemon.json <<-'EOF' { "log-driver": "json-file", "log-opts": { "max-size": "100m", "max-file": "3" }, "exec-opts": ["native.cgroupdriver=systemd"], "storage-driver": "overlay2", "storage-opts": [ "overlay2.override_kernel_check=true" ], "registry-mirrors": [ "https://docker.mirrors.ustc.edu.cn", "https://hub-mirror.c.163.com" ] } EOF #注意配置文件更新后需要重启docker systemctl restart docker