Linux安装docker

Linux安装docker

Red Hat安装docker

1. 清理已经安装的docker

sudo yum remove docker \
                  docker-client \
                  docker-client-latest \
                  docker-common \
                  docker-latest \
                  docker-latest-logrotate \
                  docker-logrotate \
                  docker-engine \
                  podman \
                  runc

• 对于Red Hat记得要移除旧的podman、runc，如果不移除可能后面安装docker时会有版本冲突

2. 安装必要工具

yum install -y yum-utils

3. 添加下载源

yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

• 不要用官网给的RHEL给的下载源https://download.docker.com/linux/rhel/docker-ce.repo

4. 查看可用版本列表

yum list docker-ce --showduplicates | sort -r
yum list docker-ce-cli --showduplicates | sort -r

5. 安装需要版本docker及docker-compose

yum install docker-ce-20.10.14 docker-ce-cli-20.10.14 containerd.io docker-compose-plugin

6. 确认安装版本及是否成功安装

docker version

docker compose version

7. 启动docker

systemctl start docker

CentOS安装docker

1. 清理已经安装的docker

sudo yum remove docker \
                  docker-client \
                  docker-client-latest \
                  docker-common \
                  docker-latest \
                  docker-latest-logrotate \
                  docker-logrotate \
                  docker-engine

2. 安装必要工具

yum install -y yum-utils epel-release

3. 添加下载源

yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

• 不要用官网给的RHEL给的下载源https://download.docker.com/linux/rhel/docker-ce.repo

4. 查看可用版本列表

yum list docker-ce --showduplicates | sort -r
yum list docker-ce-cli --showduplicates | sort -r

5. 安装需要版本docker及docker-compose

yum install docker-ce-20.10.14 docker-ce-cli-20.10.14 containerd.io docker-compose-plugin

6. 确认安装版本及是否成功安装

docker version

docker compose version

7. 启动docker

systemctl start docker

修改存储目录

1. 停用docker

systemctl stop docker

2. 创建存储目录

mkdir -p /user01/data/docker

3. 修改daemon.json文件,如果没有则新建

mkdir -p /etc/docker

cat > /etc/docker/daemon.json <<EOF
{
  "exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m"
  },
  "storage-driver": "overlay2",
  "storage-opts": [
    "overlay2.override_kernel_check=true"
  ],
  "registry-mirrors": ["https://uyah70su.mirror.aliyuncs.com"],
  "data-root": "/user01/data/docker"
}
EOF

4. 重启docker使配置生效

systemctl daemon-reload

systemctl restart docker

## 配置开机重启
systemctl enable docker

5. 确认修改是否生效

docker info