手把手教你:Linux环境安装Docker的详细步骤

systemctl stop firewalld
systemctl disable firewalld

echo "net.ipv4.ip_forward=1" >> /etc/sysctl.conf
sysctl -p

setenforce 0
sed -i 's/^SELINUX=.*/SELINUX=permissive/' /etc/selinux/config

reboot

scp dockers.zip user@server:/desired/destination

unzip dockers.zip && rm -rf dockers.zip && chmod 755 *

cp -r * /usr/bin/

cat >/etc/systemd/system/containerd.service <<EOF
[Unit]
Description=containerd container runtime
Documentation=https://containerd.io
After=network.target local-fs.target

[Service]
ExecStartPre=-/sbin/modprobe overlay
ExecStart=/usr/bin/containerd
Type=notify
Delegate=yes
KillMode=process
Restart=always
RestartSec=5
LimitNPROC=infinity
LimitCORE=infinity
LimitNOFILE=1048576
TasksMax=infinity
OOMScoreAdjust=-999

[Install]
WantedBy=multi-user.target
EOF

cat >/etc/systemd/system/docker.service <<EOF
[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target firewalld.service containd.service
Wants=network-online.target
Requires=docker.socket containd.service

[Service]
Type=notify
ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
ExecReload=/bin/kill -s HUP $MAINPID
TimeoutSec=0
RestartSec=2
Restart=always
StartLimitBurst=3
StartLimitInterval=60s
LimitNOFILE=infinity
LimitNPROC=infinity
LimitCORE=infinity
TasksMax=infinity
Delegate=yes
KillMode=process
OOMScoreAdjust=-500

[Install]
WantedBy=multi-user.target
EOF

cat >/etc/systemd/system/docker.socket <<EOF
[Unit]
Description=Docker Socket for the API

[Socket]
ListenStream=/var/run/docker.sock
SocketMode=0660
SocketUser=root
SocketGroup=docker

[Install]
WantedBy=sockets.target
EOF

mkdir -p /etc/docker
cat >/etc/docker/daemon.json <<EOF
{
    //使用systemd作为cgroup驱动，推荐与现代Linux发行版的默认设置一致
    "exec-opts":["native.cgroupdriver=systemd"],
    //配置镜像加速器，加速国内访问DockerHub的镜像拉取速度
    "registry-mirrors":[
        "https://docker.mirrors.ustc.edu.cn",//中国科学技术大学镜像源
        "http://hub-mirror.c.163.com"//网易镜像源
    ],
    //设置不安全的私有镜像仓库地址，适用于没有配置HTTPS的镜像仓库
    "insecure-registries":["10.251.134.189"],
    //设置最大并发下载数，提高镜像拉取的效率
    "max-concurrent-downloads":10,
    //配置日志驱动为json-file，便于查看容器运行日志
    "log-driver":"json-file",
    //设置日志的详细程度，"warn"表示仅记录警告及以上级别的日志
    "log-level":"warn",
    //配置日志选项：限制单个日志文件大小为10MB，最多保留3个文件
    "log-opts":{
        "max-size":"10m",
        "max-file":"3"
    },
    //设置Docker数据存储路径，默认值为/var/lib/docker
    "data-root":"/var/lib/docker"
}
EOF

systemctl enable --now containerd.service

group add docker

systemctl enable --now docker.socketsystemctl enable --now docker.service

systemctl restart docker

systemctl enable docker

docker-compose -v

systemctl status dockersystemctl status containerd