安装 docker 环境

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安装 Docker

  • 删除旧版本

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    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
    # 或者
    sudo yum remove flannel docker* -y
    sudo yum -y remove docker docker-common docker-selinux docker-engine docker-engine-selinux container-selinux docker-ce
    sudo rm -rf /var/lib/docker

  • 配置 repo

    yum-config-manager

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    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

    # 或者使用阿里云
    sudo yum-config-manager \
        --add-repo \
        https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

    # Optional
    sudo yum-config-manager --enable docker-ce-edge
    sudo yum-config-manager --enable docker-ce-test
    sudo yum-config-manager --disable docker-ce-edge

    yum 加速和代理

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    # 加速配置（阿里云加速）
    ## 备份原来的yum源
    cd /etc/yum.repos.d/
    sudo mv CentOS-Base.repo CentOS-Base.repo_bak
    ## 获取阿里云yum源
    sudo wget -O  /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
    # sudo wget -e "http_proxy=192.168.123.1:1234" -O  /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

    # 代理配置
    sudo sed -i '/^proxy=/d'  /etc/yum.conf
    sudo sh -c "echo proxy=http://192.168.123.1:1234 >> /etc/yum.conf"
    sudo cat /etc/yum.conf

    # 清除原有 yum 源缓存
    sudo yum clean all
    ## 生成 yum 源缓存
    sudo yum makecache
    ## 或者
    sudo rm -f /var/lib/rpm/__*
    sudo rpm --rebuilddb -v -v
    sudo yum clean dbcache
    sudo yum clean metadata
    sudo yum clean rpmdb
    sudo yum clean headers
    sudo yum clean all
    sudo rm -rf /var/cache/yum/timedhosts.txt
    sudo rm -rf /var/cache/yum/*
    sudo yum makecache

  • 安装 docker

    创建 docker 和 data 目录（可不创建，使用默认路径）

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    # docker 默认下载目录 /var/lib/docker/
    sudo mkdir -p /data/docker/lib/docker
    # 创建软连接
    sudo ln -s /data/docker/lib/docker /var/lib/docker
    # 删除软连接（注意：最后没有/，否则会把/var/lib/docker下的内容全部删除）
    # rm /var/lib/docker
    # sudo chmod 770 -R /var/lib/docker/
    # sudo chmod 777 -R /data/docker

    在线安装

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    # 安装最新版本
    sudo yum install docker-ce
    #安装指定版本 docker
    # 可以查看所有仓库中所有docker版本，并选择特定版本安装
    yum list docker-ce --showduplicates | sort -r
    docker-ce.x86_64            18.03.0.ce-1.el7.centos             docker-ce-stable
    sudo yum install docker-ce-<VERSION STRING>

    # 或者
    sudo curl https://releases.rancher.com/install-docker/20.10.sh | sh
    sudo curl --proxy 192.168.123.1:1234 https://releases.rancher.com/install-docker/20.10.sh | sh

离线安装

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# 需要按顺序执行
sudo yum install -y docker-ce-cli-19.03.12-3.el7.x86_64.rpm
# 下载路径：http://mirror.centos.org/centos/7/extras/x86_64/Packages/
sudo yum install -y container-selinux-2.107-3.el7.noarch.rpm
sudo yum install -y containerd.io-1.3.7-3.1.el7.x86_64.rpm
sudo yum install -y docker-ce-19.03.12-3.el7.x86_64.rpm

# 或者将以上 rpm 包放到一个文件夹，然后执行一下命令，会自动判断依赖
yum localinstall -y *.rpm

  • 启动并加入开机启动

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    # 启动 docker
    sudo systemctl start docker
    # 重启
    sudo systemctl restart docker
    # 停止运行 docker
    sudo systemctl stop docker
    # 开机启动
    sudo systemctl enable docker
    # 禁止开机启动
    sudo systemctl disable docker

  • 版本锁定

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sudo yum install yum-plugin-versionlock
sudo yum versionlock add docker-ce docker-ce-cli
sudo yum versionlock list
  • 将当前用户加入docker组，并重启docker
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sudo gpasswd -a ${USER} docker
sudo systemctl restart docker

  • 验证安装

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    $ docker version
    Client:
     Version:           18.06.1-ce
     API version:       1.38
     Go version:        go1.10.3
     Git commit:        e68fc7a
     Built:             Tue Aug 21 17:23:03 2018
     OS/Arch:           linux/amd64
     Experimental:      false

    Server:
     Engine:
      Version:          18.06.1-ce
      API version:      1.38 (minimum version 1.12)
      Go version:       go1.10.3
      Git commit:       e68fc7a
      Built:            Tue Aug 21 17:25:29 2018
      OS/Arch:          linux/amd64
      Experimental:     false

Docker 配置代理

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# 配置 docker pull 代理
# sudo rm -rf /etc/systemd/system/docker.service.d
# cat /etc/systemd/system/docker.service.d/http-proxy.conf
sudo mkdir -p /etc/systemd/system/docker.service.d
sudo tee /etc/systemd/system/docker.service.d/http-proxy.conf <<-'EOF'
[Service]
Environment="HTTP_PROXY=http://192.168.123.1:1234" "NO_PROXY=localhost,127.0.0.1,172.16.120.0/24"
EOF
sudo systemctl daemon-reload
sudo systemctl enable docker
sudo systemctl restart docker

其中172.16.120.0/24为宿主机 ip

Docker 配置加速源

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# sudo rm -rf /etc/docker/daemon.json
sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors":["https://docker.mirrors.ustc.edu.cn"],
  "default-address-pools": [
    {
      "base": "192.49.0.0/16",
      "size": 24
    }
  ],
  "log-driver":"json-file",
	"log-opts":{ "max-size" :"50m","max-file":"10"}
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

安装 docker-compose

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# 安装
sudo curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-`uname -s`-`uname -m`" -o /usr/local/bin/docker-compose

curl -L https://github.com/docker/compose/releases/download/1.29.2/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose

# https://github.com/docker/compose/releases/download/1.29.2/docker-compose-Linux-x86_64

# sudo curl --proxy 192.168.123.1:1234 -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-`uname -s`-`uname -m`" -o /usr/local/bin/docker-compose

# sudo curl --proxy 192.168.123.1:1234 -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

# 配置权限
sudo chmod +x /usr/local/bin/docker-compose
# sudo chmod 755 /usr/local/bin/docker-compose
# sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose

# 验证是否安装成功
docker-compose --version

# 安装后，如果提示 bash: docker-compose: command not found...，则执行以下命令
sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose

进入容器

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# centos
docker exec -it <container-name> /bin/bash

# alpine
docker exec -it <container-name> sh
  • 本文作者： forever杨
  • 本文链接： https://blog.yl-online.top/posts/2fff8f5e.html
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