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---
icon: edit
date: 2021-10-16
category:
- Docker
- Linux
tag:
- Docker
- linux
headerDepth: 5
---
# Linux 安装 Docker
# centos下安装docker
> 其他系统参照如下文档
https://docs.docker.com/engine/install/centos/
## 1、移除以前docker相关包
``` shell
sudo yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine
```
## 2、配置yum源
``` shell
sudo yum install -y yum-utils
sudo yum-config-manager \
--add-repo \
http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
```
## 3、安装docker
``` shell
sudo yum install -y docker-ce docker-ce-cli containerd.io
#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
```
## 4、启动
```
systemctl enable docker --now #--now 立即执行
```
## 5、配置加速
这里额外添加了docker的生产环境核心配置cgroup
``` json
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
```