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ubuntu安装docker{ubuntu16.04下安装docker}

   一、开始安装

 第一步:   由于apt官方库里的docker版本可能比较旧,所以先卸载可能存在的旧版本:

$ sudo apt-get remove docker docker-engine docker-ce docker.io


 第二步、更新apt包索引:

                $ sudo apt-get update

第三步、  安装以下包以使apt可以通过HTTPS使用存储库(repository):

               $ sudo apt-get install -y apt-transport-https ca-certificates curl software-properties-common

第四步、 添加Docker官方的GPG密钥:

                $ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

 第五步: 使用下面的命令来设置stable存储库:

                $ sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"

第六步:     再更新一下apt包索引:

                $ sudo apt-get update

 第七步:    安装最新版本的Docker CE:

                $ sudo apt-get install -y docker-ce

    在生产系统上,可能会需要应该安装一个特定版本的Docker CE,而不是总是使用最新版本:

第八步:列出可用的版本:
            $ apt-cache madison docker-ce
选择要安装的特定版本,第二列是版本字符串,第三列是存储库名称,它指示包来自哪个存储库,以及扩展它的稳定性级别。要安装一个特定的版本,将版本字符串附加到包名中,并通过等号(=)分隔它们:

$ sudo apt-get install docker-ce=<VERSION> 


验证docker

查看docker服务是否启动:

$ systemctl status docker

1

若未启动,则启动docker服务:

$ sudo systemctl start docker

1

经典的hello world:

$ sudo docker run hello-world

ubuntu安装docker{ubuntu16.04下安装docker}_docker

二、运行报错:解决方案

昨天在使用docker 时,将 image 文件从仓库抓取到本地一直报错,经过尝试,终于得以解决。

错误信息如下:

[root@archlinux ~]# docker image pull library/hello-world 
Using default tag: latest
Error response from daemon: Get https://registry-1.docker.io/v2/library/hello-world/manifests/latest: dial tcp 52.20.146.203:443: i/o timeout

 

或者:

[root@archlinux quanxj]# docker image pull library/hello-world 
Using default tag: latest
latest: Pulling from library/hello-world
ca4f61b1923c: Pull complete
error pulling image configuration: Get https://registry-1.docker.io/v2/library/hello-world/blobs/sha256:f2a91732366c0332ccd7afd2a5c4ff2b9af81f549370f7a19acd460f87686bc7: dial tcp 35.169.231.249:443: i/o timeout

解决方法如下:
第一步:通过​​​dig @114.114.114.114 registry-1.docker.io​​找到可用IP

[root@archlinux ~]# dig @114.114.114.114 registry-1.docker.io 
; <<>> DiG 9.12.0 <<>> @114.114.114.114 registry-1.docker.io
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 37534
;; flags: qr rd ra; QUERY: 1, ANSWER: 8, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; COOKIE: 88f87a15f4ca45dc (echoed)
;; QUESTION SECTION:
;registry-1.docker.io. IN A
;; ANSWER SECTION:
registry-1.docker.io. 30 IN A 34.200.28.105
registry-1.docker.io. 30 IN A 52.22.181.254
registry-1.docker.io. 30 IN A 35.169.231.249
registry-1.docker.io. 30 IN A 52.5.185.86
registry-1.docker.io. 30 IN A 54.164.230.151
registry-1.docker.io. 30 IN A 34.200.90.16
registry-1.docker.io. 30 IN A 52.20.146.203
registry-1.docker.io. 30 IN A 52.206.156.207
;; Query time: 116 msec
;; SERVER: 114.114.114.114#53(114.114.114.114)
;; WHEN: 四 3月 08 09:27:12 CST 2018
;; MSG SIZE rcvd: 189

 

第二步:尝试修改/etc/hosts强制docker.io相关的域名解析到其它可用IP

vim /etc/hosts
  • 1

添加一个可用IP:

52.5.185.86 registry-1.docker.io
  • 1

保存之后重试:

[root@archlinux quanxj]# docker image pull library/hello-world 
Using default tag: latest
latest: Pulling from library/hello-world
ca4f61b1923c: Already exists
Digest: sha256:083de497cff944f969d8499ab94f07134c50bcf5e6b9559b27182d3fa80ce3f7
Status: Downloaded newer image for hello-world:latest

验证:

[root@archlinux quanxj]# docker image ls 
REPOSITORY TAG IMAGE ID CREATED SIZE
hello-world latest f2a91732366c 3 months ago 1.85kB


三、如果还不行,则用如下方法:

[root@teddy /]# docker search ubuntu
Error response from daemon: Get https://index.docker.io/v1/search?q=ubuntu: read tcp 52.200.132.201:443: i/o timeout


docker在中国已经有了仓库:https://www.docker-cn.com/registry-mirror


根据上面网站提供的修改方法。


进入/etc/docker

查看有没有 daemon.json。这是docker默认的配置文件。

如果没有新建touch daemon.json
,如果有,则修改。


[root@teddy docker]# vi daemon.json
{
"registry-mirrors": ["https://registry.docker-cn.com"]
}

保存退出。


重启docker服务

service docker restart

成功!


[root@teddy docker]# docker search ubuntu
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
ubuntu The official build of ubuntu. 3732 [OK]
ansible/ubuntu-ansible Ansible on ubuntu 102 [OK]
jdeathe/ubuntu-ssh ubuntu-6 6.9 x86_64 / ubuntu 7.4.1708 x8... 87 [OK]
tutum/ubuntu Simple ubuntu docker image with SSH access 33
imagine10255/ubuntu6-lnmp-php56 ubuntu6-lnmp-php56 31 [OK]
gluster/gluster-ubuntu Official GlusterFS Image [ ubuntu + Glu... 20 [OK]
kinogmt/ubuntu-ssh ubuntu with SSH 17 [OK]
ubuntu/php-56-ubuntu Platform for building and running PHP 5.6 ... 10
openshift/base-ubuntu A ubuntu derived base image for Source-To... 10
ubuntu/python-35-ubuntu Platform for building and running Python 3... 9
openshift/mysql-55-ubuntu DEPRECATED: A ubuntu based MySQL v5.5 ima... 6
openshift/jenkins-2-ubuntu A ubuntu based Jenkins v2.x image for use... 5
openshift/ruby-20-ubuntu DEPRECATED: A ubuntu based Ruby v2.0 imag... 3
darksheer/ubuntu Base ubuntu Image -- Updated hourly 3 [OK]
indigo/ubuntu-maven Vanilla ubuntu 7 with Oracle Java Developm... 1 [OK]
openshift/php-55-ubuntu DEPRECATED: A ubuntu based PHP v5.5 image... 1
pivotaldata/ubuntu-gpdb-dev ubuntu image for GPDB development. Tag nam... 1
pivotaldata/ubuntu-mingw Using the mingw toolchain to cross-compile... 1
miko2u/ubuntu6 ubuntu6 日本語環境 1 [OK]
blacklabelops/ubuntu ubuntu Base Image! Built and Updates Daily! 1 [OK]
smartentry/ubuntu ubuntu with smartentry 0 [OK]
pivotaldata/ubuntu Base ubuntu, freshened up a little with a ... 0
openshift/wildfly-101-ubuntu A ubuntu based WildFly v10.1 image for us... 0
jameseckersall/sonarr-ubuntu Sonarr on ubuntu 7 0 [OK]
pivotaldata/ubuntu-gcc-toolchain ubuntu with a toolchain, but unaffiliated ... 0
[root@teddy docker]#

 

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