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Linux基础
Linux服务器搭建
网络基础

docker的安装

一、前提

安装一台Linux的主机（本人使用vmwere安装）

需要内核版本高于3.8

1 [root@localhost ~]# uname -r
2 3.10.0-1160.el7.x86_64

需要的系统版本（尽量使用centos7）

1 [root@localhost etc]# cat /etc/centos-release
2 CentOS Linux release 7.9.2009 (Core)

如果是需要连通网络，可以上网！！！

二、内核版本升级

1、下载安装内核（以6.5升级为例）

1 rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
2 rpm -ivh http://www.elrepo.org/elrepo-release-6-5.el6.elrepo.noarch.rpm
3 yum -y --enablerepo=elrepo-kernel install kernel-lt

2、修改配置文件

vi /etc/grub.conf

将default=1修改为default=0

3、重启机器

reboot/init 6

三、配置网络yum源

网络yum源（阿里云）

 1 # CentOS-Base.repo
 2 #
 3 # The mirror system uses the connecting IP address of the client and the
 4 # update status of each mirror to pick mirrors that are updated to and
 5 # geographically close to the client.  You should use this for CentOS updates
 6 # unless you are manually picking other mirrors.
 7 #
 8 # If the mirrorlist= does not work for you, as a fall back you can try the 
 9 # remarked out baseurl= line instead.
10 #
11 #
12  
13 [base]
14 name=CentOS-$releasever - Base - mirrors.aliyun.com
15 failovermethod=priority
16 baseurl=http://mirrors.aliyun.com/centos/$releasever/os/$basearch/
17         http://mirrors.aliyuncs.com/centos/$releasever/os/$basearch/
18         http://mirrors.cloud.aliyuncs.com/centos/$releasever/os/$basearch/
19 gpgcheck=1
20 gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
21  
22 #released updates 
23 [updates]
24 name=CentOS-$releasever - Updates - mirrors.aliyun.com
25 failovermethod=priority
26 baseurl=http://mirrors.aliyun.com/centos/$releasever/updates/$basearch/
27         http://mirrors.aliyuncs.com/centos/$releasever/updates/$basearch/
28         http://mirrors.cloud.aliyuncs.com/centos/$releasever/updates/$basearch/
29 gpgcheck=1
30 gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
31  
32 #additional packages that may be useful
33 [extras]
34 name=CentOS-$releasever - Extras - mirrors.aliyun.com
35 failovermethod=priority
36 baseurl=http://mirrors.aliyun.com/centos/$releasever/extras/$basearch/
37         http://mirrors.aliyuncs.com/centos/$releasever/extras/$basearch/
38         http://mirrors.cloud.aliyuncs.com/centos/$releasever/extras/$basearch/
39 gpgcheck=1
40 gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
41  
42 #additional packages that extend functionality of existing packages
43 [centosplus]
44 name=CentOS-$releasever - Plus - mirrors.aliyun.com
45 failovermethod=priority
46 baseurl=http://mirrors.aliyun.com/centos/$releasever/centosplus/$basearch/
47         http://mirrors.aliyuncs.com/centos/$releasever/centosplus/$basearch/
48         http://mirrors.cloud.aliyuncs.com/centos/$releasever/centosplus/$basearch/
49 gpgcheck=1
50 enabled=0
51 gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
52  
53 #contrib - packages by Centos Users
54 [contrib]
55 name=CentOS-$releasever - Contrib - mirrors.aliyun.com
56 failovermethod=priority
57 baseurl=http://mirrors.aliyun.com/centos/$releasever/contrib/$basearch/
58         http://mirrors.aliyuncs.com/centos/$releasever/contrib/$basearch/
59         http://mirrors.cloud.aliyuncs.com/centos/$releasever/contrib/$basearch/
60 gpgcheck=1
61 enabled=0
62 gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

四、docker安装

1、工具服务安装

yum install -y yum-utils

2、仓库加载

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

3、docker安装

yum install docker-ce

4、docker镜像加速（163的加速，也可以使用其他加速）

a、创建加速文件

1 mkdir -p /etc/docker
2 touch /etc/docker/daemon.json

b、书写文件

{
  "registry-mirrors": ["http://hub-mirror.c.163.com"]
}

5、启动docker并查看状态

[root@localhost ~]# systemctl start docker.service
[root@localhost ~]# systemctl status docker
● docker.service - Docker Application Container Engine
   Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)
   Active: active (running) since Wed 2021-03-24 07:28:44 EDT; 14s ago
     Docs: https://docs.docker.com
 Main PID: 9983 (dockerd)
    Tasks: 8
   Memory: 64.0M
   CGroup: /system.slice/docker.service
           └─9983 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock

Mar 24 07:28:43 localhost.localdomain dockerd[9983]: time="2021-03-24T07:28:43.301482007-04:00" level=info msg="scheme \"unix\" not registered, fallbac...ule=grpc
Mar 24 07:28:43 localhost.localdomain dockerd[9983]: time="2021-03-24T07:28:43.301523005-04:00" level=info msg="ccResolverWrapper: sending update to cc...ule=grpc
Mar 24 07:28:43 localhost.localdomain dockerd[9983]: time="2021-03-24T07:28:43.301545201-04:00" level=info msg="ClientConn switching balancer to \"pick...ule=grpc
Mar 24 07:28:43 localhost.localdomain dockerd[9983]: time="2021-03-24T07:28:43.409787456-04:00" level=info msg="Loading containers: start."
Mar 24 07:28:43 localhost.localdomain dockerd[9983]: time="2021-03-24T07:28:43.958929100-04:00" level=info msg="Default bridge (docker0) is assigned wi...address"
Mar 24 07:28:44 localhost.localdomain dockerd[9983]: time="2021-03-24T07:28:44.357555441-04:00" level=info msg="Loading containers: done."
Mar 24 07:28:44 localhost.localdomain dockerd[9983]: time="2021-03-24T07:28:44.924748381-04:00" level=info msg="Docker daemon" commit=363e9a8 graphdriv...=20.10.5
Mar 24 07:28:44 localhost.localdomain dockerd[9983]: time="2021-03-24T07:28:44.927455018-04:00" level=info msg="Daemon has completed initialization"
Mar 24 07:28:44 localhost.localdomain systemd[1]: Started Docker Application Container Engine.
Mar 24 07:28:45 localhost.localdomain dockerd[9983]: time="2021-03-24T07:28:45.040525036-04:00" level=info msg="API listen on /var/run/docker.sock"
Hint: Some lines were ellipsized, use -l to show in full.

五、失败总结

1、防火墙阻拦

解决方法：关闭防火墙

2、拉起的docker镜像无法访问属主机（有的内核不支持）

解决方法：升级内核

3、加速文件配置

解决方法：a、加速文件不可以有空格

　　　　　

posted @ 2021-03-24 19:34  冘冗  阅读(44)  评论(0)  编辑  收藏  举报