背景

在新买的阿里云在线搭建docker环境

当前系统环境

lsb_release -a

# 查看系统详细信息命令
[root@iZbp18sxd8cxak3k30znshZ docker]# lsb_release -a
LSB Version:	:core-4.1-amd64:core-4.1-noarch
Distributor ID:	AlibabaCloud(AliyunLinux)
Description:	Alibaba Cloud Linux (Aliyun Linux) release 2.1903 LTS (Hunting Beagle) 
Release:	2.1903
Codename:	HuntingBeagle

uname -a

[root@iZbp18sxd8cxak3k30znshZ docker]# uname -a
Linux iZbp18sxd8cxak3k30znshZ 4.19.91-24.1.al7.x86_64 #1 SMP Wed Jul 21 17:40:23 CST 2021 x86_64 x86_64 x86_64 GNU/Linux

 安装docker

yum install docker

# 执行安装命令，中间会有个安装确认提示框选择yes就行了
[root@iZbp18sxd8cxak3k30znshZ docker]# vi /etc/docker/daemon.json.rpmsave 
[root@iZbp18sxd8cxak3k30znshZ docker]# yum install
Loaded plugins: fastestmirror, langpacks, update-motd
Error: Need to pass a list of pkgs to install
 Mini usage:

install PACKAGE...

Install a package or packages on your system

aliases: install-n, install-na, install-nevra
[root@iZbp18sxd8cxak3k30znshZ docker]# yum install docker
Loaded plugins: fastestmirror, langpacks, update-motd
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package docker.x86_64 2:1.13.1-108.git4ef4b30.1.al7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

==============================================================================================================================================================================================================================================================================
 Package                                                     Arch                                                        Version                                                                            Repository                                                   Size
==============================================================================================================================================================================================================================================================================
Installing:
 docker                                                      x86_64                                                      2:1.13.1-108.git4ef4b30.1.al7                                                      extras                                                       22 M

Transaction Summary
==============================================================================================================================================================================================================================================================================
Install  1 Package

Total download size: 22 M
Installed size: 77 M
Is this ok [y/d/N]: y
Downloading packages:
docker-1.13.1-108.git4ef4b30.1.al7.x86_64.rpm                                                                                                                                                                                                          |  22 MB  00:00:00     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : 2:docker-1.13.1-108.git4ef4b30.1.al7.x86_64                                                                                                                                                                                                                1/1 
  Verifying  : 2:docker-1.13.1-108.git4ef4b30.1.al7.x86_64                                                                                                                                                                                                                1/1 

Installed:
  docker.x86_64 2:1.13.1-108.git4ef4b30.1.al7                                                                                                                                                                                                                                 

Complete!

查看docker版本

docker version

有个提示cannot connect to the Docker.... 表示当前docker服务没有启动

[root@iZbp18sxd8cxak3k30znshZ docker]# docker version
Client:
 Version:         1.13.1
 API version:     1.26
 Package version: 
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

 启动docker服务

systemctl start docker

PS:如果不报错基本上就启动成功

再次查看docker版本

[root@iZbp18sxd8cxak3k30znshZ docker]# docker version
Client:
 Version:         1.13.1
 API version:     1.26
 Package version: docker-1.13.1-108.git4ef4b30.1.al7.x86_64
 Go version:      go1.13.3
 Git commit:      4ef4b30/1.13.1
 Built:           Fri Jan 31 15:01:11 2020
 OS/Arch:         linux/amd64

Server:
 Version:         1.13.1
 API version:     1.26 (minimum version 1.12)
 Package version: docker-1.13.1-108.git4ef4b30.1.al7.x86_64
 Go version:      go1.13.3
 Git commit:      4ef4b30/1.13.1
 Built:           Fri Jan 31 15:01:11 2020
 OS/Arch:         linux/amd64
 Experimental:    false

 配置docker日志

默认的路径为：/etc/docker/daemon.json(其中是空的)

vi /etc/docker/daemon.json

log-driver: 配置生成文件的类型

log-opts：配置文件的最大值和最大文件数量

{
  "log-driver":"json-file",
  "log-opts": {
    "max-size": "10m",
    "max-file": "3"
  }
}

 重新启动

systemctl restart docker

# 重启之后有可能会出现问题 （有可能是因为历史安装中指定了默认日志生成方式比如 log-driver=journald ）
[root@iZbp18sxd8cxak3k30znshZ docker]# systemctl restart docker 
Job for docker.service failed because the control process exited with error code.
 See "systemctl status docker.service" and "journalctl -xe" for details.

 详细错误日志

systemctl status docker.service

[root@iZbp18sxd8cxak3k30znshZ docker]# systemctl status docker.service
● docker.service - Docker Application Container Engine
   Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Wed 2021-07-28 13:20:10 CST; 2s ago
     Docs: http://docs.docker.com
  Process: 4754 ExecStart=/usr/bin/dockerd-current --add-runtime docker-runc=/usr/libexec/docker/docker-runc-current --default-runtime=docker-runc --exec-opt native.cgroupdriver=systemd --userland-proxy-path=/usr/libexec/docker/docker-proxy-current --init-path=/usr/libexec/docker/docker-init-current --seccomp-profile=/etc/docker/seccomp.json $OPTIONS $DOCKER_STORAGE_OPTIONS $DOCKER_NETWORK_OPTIONS $ADD_REGISTRY $BLOCK_REGISTRY $INSECURE_REGISTRY $REGISTRIES (code=exited, status=1/FAILURE)
 Main PID: 4754 (code=exited, status=1/FAILURE)

Jul 28 13:20:10 iZbp18sxd8cxak3k30znshZ systemd[1]: Starting Docker Application Container Engine...
Jul 28 13:20:10 iZbp18sxd8cxak3k30znshZ dockerd-current[4754]: unable to configure the Docker daemon with file /etc/docker/daemon.json: the following directives are specified both as a flag and in the configuration file: log-driver: (from flag: jour... from file: local)
Jul 28 13:20:10 iZbp18sxd8cxak3k30znshZ systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE
Jul 28 13:20:10 iZbp18sxd8cxak3k30znshZ systemd[1]: Failed to start Docker Application Container Engine.
Jul 28 13:20:10 iZbp18sxd8cxak3k30znshZ systemd[1]: Unit docker.service entered failed state.
Jul 28 13:20:10 iZbp18sxd8cxak3k30znshZ systemd[1]: docker.service failed.
Hint: Some lines were ellipsized, use -l to show in full.

 

产生原因

启动命令中的日志模式和守护进程中的模式产生了冲突

启动命令配置路径为：/etc/sysconfig/docker

 

 解决

在启动中的参数删除掉，在日志守护进程中配置日志生成的类型

 

 重新启动

systemctl restart docker

 配置开机启动

systemctl enable docker.service

查看所有的容器信息

 docker ps -a 

至此 完成安装

[root@iZbp18sxd8cxak3k30znshZ sysconfig]# docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

离线安装

如果想在内网离线安装可以修改yum的配置项将下载的文件都拷贝到目标机器安装

配置路径： /etc/yum.conf

配置项为： keepcache=1 （保存下载下来的安装包）

 

主要配置项

默认是： /var/cache/yum/****
也可以在 /etc/yum.conf 指定
cachedir=/var/cache/yum #存放目录
keepcache=1 ＃1为保存 0为不保存
metadata_expire=1800 ＃过期时间