docker离线和在线安装_docker 离线

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