docker和Docker Compose安装

忘是亡心i 2022-03-02 11:44 228阅读 0赞

# CentOS下安装docker #

# 命令自动补全
    yum -y install bash-completion
    
    # 启用firewall
    systemctl start firewalld
    systemctl enable firewalld
    
    # 升级
    yum -y update
    
    # 重启
    reboot

1,卸载旧版本，Docker 的早期版本称为 docker 或 docker-engine。如果安装了这些版本，请卸载它们及关联的依赖资源。

使用[官网][Link 1]给出的步骤安装Docker CE版

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

2.安装 Docker CE

sudo yum install -y yum-utils device-mapper-persistent-data lvm2
    sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
    【注意：
    当上面链接（官网）无法连接时，使用下面镜像地址
    sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
    】
    sudo yum-config-manager --enable docker-ce-edge
    sudo yum-config-manager --enable docker-ce-test
    sudo yum-config-manager --disable docker-ce-edge
    sudo yum makecache 
    sudo yum install docker-ce

3.centos8上准备安装个docker，抛出了一个报错

[root@localhost ~]# yum install docker-ce
    Extra Packages for Enterprise Linux 8 - x86_64                                                                                                                                                                              268 kB/s | 3.3 MB     00:12    
    Last metadata expiration check: 0:00:02 ago on Tue 12 Nov 2019 11:53:21 PM CST.
    Error: 
     Problem: package docker-ce-3:19.03.4-3.el7.x86_64 requires containerd.io >= 1.2.2-3, but none of the providers can be installed
      - cannot install the best candidate for the job
      - package containerd.io-1.2.10-3.2.el7.x86_64 is excluded
      - package containerd.io-1.2.2-3.3.el7.x86_64 is excluded
      - package containerd.io-1.2.2-3.el7.x86_64 is excluded
      - package containerd.io-1.2.4-3.1.el7.x86_64 is excluded
      - package containerd.io-1.2.5-3.1.el7.x86_64 is excluded
      - package containerd.io-1.2.6-3.3.el7.x86_64 is excluded
    (try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)

下载支持的containerd.io然后重新下载docker

wget https://download.docker.com/linux/centos/7/x86_64/edge/Packages/containerd.io-1.2.6-3.3.el7.x86_64.rpm
    yum install -y  containerd.io-1.2.6-3.3.el7.x86_64.rpm 
    yum install -y docker-ce

docker -v

4.启动docker

sudo systemctl start docker
    
    或者
    
    service docker start

5.验证

sudo docker run hello-world

6.设置开机启动

sudo chkconfig docker on
    或
    systemctl enable docker.service

# 使用脚本自动安装 #

在测试或开发环境中 Docker 官方为了简化安装流程，提供了一套便捷的安装脚本，CentOS 系统上可以使用这套脚本安装：

curl -fsSL get.docker.com -o get-docker.sh
    
    再执行
    
    sudo sh get-docker.sh --mirror Aliyun

# Docker Compose安装 #

官网安装步骤地址：[https://docs.docker.com/compose/install/][https_docs.docker.com_compose_install]

1、安装Run this command to download the latest version of Docker Compose
    sudo curl -L "https://github.com/docker/compose/releases/download/1.25.4/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
    
    
    如果github dockercompose速度较慢可以使用下面这个，效果一样
    curl -L https://get.daocloud.io/docker/compose/releases/download/1.25.4/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose
    
     
    2、赋权Apply executable permissions to the binary:
    sudo chmod +x /usr/local/bin/docker-compose
     
    3、Optionally, install command completion for the bash and zsh shell.
    sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose
    
    4、测试（查看版本）Test the installation
    docker-compose --version

[Link 1]: https://docs.docker.com/install/linux/docker-ce/centos/
[https_docs.docker.com_compose_install]: https://docs.docker.com/compose/install/