• JonTechTips

    Jonny Hu

    Docker安装

    Container
    30
    2024-10-28
    Docker安装

    前排声明：文章方法部分为google得来，个人操作成功后汇总发出

    常规安装

    tar下载和解压

    wget  https://download.docker.com/linux/static/stable/x86_64/docker-26.0.0.tgz
传到你想要的目录，可能是/soft
tar -zxvf docker-26.0.0.tgz
cp -p docker/* /usr/bin

    注册服务

    vi /etc/systemd/system/docker.service
chmod +x /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
# the default is not to use systemd for cgroups because the delegate issues still
# exists and systemd currently does not support the cgroup feature set required
# for containers run by docker
ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix://var/run/docker.sock
ExecReload=/bin/kill -s HUP $MAINPID

# Having non-zero Limit*s causes performance problems due to accounting overhead
# in the kernel. We recommend using cgroups to do container-local accounting.
LimitNOFILE=infinity
LimitNPROC=infinity
LimitCORE=infinity

# Uncomment TasksMax if your systemd version supports it.
# Only systemd 226 and above support this version.
#TasksMax=infinity
TimeoutStartSec=0

# set delegate yes so that systemd does not reset the cgroups of docker containers
Delegate=yes

# kill only the docker process, not all processes in the cgroup
KillMode=process

# restart the docker process if it exits prematurely
Restart=on-failure
StartLimitBurst=3
StartLimitInterval=60s

[Install]
WantedBy=multi-user.target 

    cd /etc/systemd/system
systemctl daemon-reload

    启动Docker并设置开机自启

    systemctl start docker  
systemctl enable docker.service 

    验证
docker run hello-world

    如果出现问题

    可能在systemctl start docker 会出现问题，查看日志也并不能解决，这时候如果有外网 ，换一种操作形式

    确认yum源

    首先确认是否有可用的yum源来进行依赖的安装，如果没有，请google寻找

    https://blog.csdn.net/hanzheng260561728/article/details/51035629

#oracle linux 8
yum install -y http://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm

    oracle linux各个版本的yum源

    yum repoinfo

    如果缺少DNS解析

    可以重启网卡的情况：

    vi /etc/sysconfig/network-scripts/ifcfg-ens33
修改网卡配置文件，加一条DNS=8.8.8.8

#临时指定解析指定网站使用某DNS
dig @8.8.8.8 get.docker.com

    不重启网卡：

    这时使用一键命令安装可能还是会出现解析问题，这时可以修改临时文件，无需重启网卡

    vi /etc/resolv.conf
加一行
nameserver 8.8.8.8

    安装依赖（实际上一键安装就不需要了）

    yum install -y yum-utils

    一键安装命令

    curl -fsSL https://get.docker.com | bash -s docker

    oracle linux不支持docker此命令的一键安装，此处骚操作：

    报错内容：
Executing docker install script, commit:442e66405c304fa92af8aadaa1d9b31bf4b0ad94
ERROR: Unsupported distribution 'ol'

    更改/etc/os-release文件的ID属性，orcacle linux 为ol，修改为centos即可

    ​image​

    Apsara