Linux 安装docker
大约 2 分钟Dockerdocker
一、安装前须知
(可选)卸载之前的docker
方法一:
查询docker状态
systemctl status docker
停止docker状态
systemctl stop docker
卸载docker
sudo yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine
方法二:
查询docker状态
systemctl status docker
查询docker安装过的包
yum list installed | grep docker
删除安装包
yum remove docker-ce.x86_64 ddocker-ce-cli.x86_64 -y
删除镜像/容器等
rm -rf /var/lib/docker
二、在线安装Docker
配置相关yum源
sudo yum install -y yum-utils
sudo yum-config-manager \
--add-repo \
http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
安装docker
#以下是在安装k8s的时候使用
yum install -y docker-ce-20.10.7 docker-ce-cli-20.10.7 containerd.io-1.4.6
或
#安装最新版docker
sudo yum install -y docker-ce docker-ce-cli containerd.io
启动docker
systemctl enable docker --now
配置加速
#这里额外添加了docker的生产环境核心配置cgroup
sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": ["https://82m9ar63.mirror.aliyuncs.com"],
"exec-opts": ["native.cgroupdriver=systemd"],
"log-driver": "json-file",
"log-opts": {
"max-size": "100m"
},
"storage-driver": "overlay2"
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker
在线安装docker-compose
-- 这个命令会下载最新版本的 Docker Compose 并保存到 /usr/local/bin/docker-compose。
curl -L https://github.com/docker/compose/releases/latest/download/docker-compose-$(uname -s)-$(uname -m) -o /usr/local/bin/docker-compose
赋予执行权限:
chmod +x /usr/local/bin/docker-compose
安装完成后,可以运行以下命令来验证 Docker Compose 是否成功安装:
docker-compose --version
三、离线安装Docker
下载安装包
- Docker版本必须大于
19.03.8+
- Docker下载地址:https://download.docker.com/linux/static/stable/x86_64/
选择合适的docker版本
解压缩
tar -zxvf docker-19.03.9.tgz
移动文件
解压的docker文件夹全部移动至/usr/bin目录
cp docker/* /usr/bin/
将Docker注册为系统服务
vi /etc/systemd/system/docker.service
[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target firewalld.service
Wants=network-online.target
[Service]
Type=notify
ExecStart=/usr/bin/dockerd
ExecReload=/bin/kill -s HUP $MAINPID
LimitNOFILE=infinity
LimitNPROC=infinity
LimitCORE=infinity
TimeoutStartSec=0
Delegate=yes
KillMode=process
Restart=on-failure
StartLimitBurst=3
StartLimitInterval=60s
[Install]
WantedBy=multi-user.target
#依次执行以下脚本
chmod +x /etc/systemd/system/docker.service
#刷新配置&&启动服务&&开启自启
systemctl daemon-reload && systemctl start docker && systemctl enable docker.service
#查看版本
docker -v
配置dcker仓库路径
vi /etc/docker/daemon.json填入以下内容:(私仓IP改成自己的,也可事先预留装好harbor后再修改)
#镜像加速(可不配):registry-mirrors
#仓库地址:insecure-registries
#额外参数:exec-opts
{
"registry-mirrors": [
"https://sq9p56f6.mirror.aliyuncs.com"
],
"insecure-registries": ["私服ip:8088"],
"exec-opts":["native.cgroupdriver=systemd"]
}
#刷新配置&&启动服务&&开启自启
systemctl daemon-reload && systemctl restart docker
四、离线安装Docker-compose
下载安装包
所有版本下载路径: https://github.com/docker/compose/releases
Docker-Compose下载路径:https://github.com/docker/compose/releases/download/1.24.1/docker-compose-Linux-x86_64
选择合适的docker版本
配置
mv docker-compose-Linux-x86_64 /usr/local/bin/docker-compose
chmod +x /usr/local/bin/docker-compose
ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose
验证
docker-compose version