ubuntu安装docker环境

admin

安装docker
    各个操作系统的安装可以访问：
. V* u5 k$ U) V7 @8 u     https://docs.docker.com/engine/installation
0 G4 Q- U6 U6 z3 q0 _) o; G3 }docker分为开源的免费的CE版本和收费的EE版本：
7 J; m) }# o" _- W以下实验环境，采用在ubuntu16.04操作系统上安装，使用docker版本为Docker CE版本：
          配置docker的apt源
              安装包：允许apt命令https访问docker源：
$sudo apt-get install \ apt-transport-https \ ca-certificates \ curl \ software-properties-common
( t  E7 S& \4 M   $sudo apt-get install -y apt-transport-https ca-certificates curl software-properties-common
添加docker官方的GPG key
   
3 m0 B1 q& W3 I$ e: H) Ycurl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

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admin

将docker的源添加到/etc/apt/sources.list
    sudo add-apt-repository  "deb [arch=amd64] https://download.docker.com/linux/ubuntu \ $(lsb_release -cs) stable"
安装docker
3 o$ J8 M3 \" q4 b      更新源：
     sudo apt-get update
8 e) Q8 w2 g" s: g4 ^- w7 o7 v; [     安装docker-ce包
        apt-get install -y docker-ce
4 m3 e5 z4 F5 G9 K" i* p
- R. _+ c( l3 {1 V& E    安装更新了，安装失败：
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     sudo grep device-mapper /proc/devices
252 device-mapper


0 \+ G3 H3 C4 ^6 c: U3 x+ m如果没有出现就需要执行下面命令
    root@dockerserver:~# modprobe dm_mod
! N% S' Z, `0 F9 ?root@dockerserver:~# sudo grep device-mapper /proc/devices
8 Y7 H( Y  i% ?( _252 device-mapper

安装docker

这一步很关键，如果不是在天朝一个命令即可搞定：  $ sudo apt-get install -y docker.io，但是我们最好使用国内的镜像源安装docker，不然那个安装速度真是比乌龟都慢。

这里我们使用 DaoCloud 镜像站点(国内的一家公司)，高速安装Docker，这里附上DaoCloud 官方安装文档：http://guide.daocloud.io/dcs/docker-9152677.html
$ curl -sSL https://get.daocloud.io/docker | sh

安装完docker以后，可以使用docker info命令来确认docker是否已经正常安装并运行。
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admin

docker info
* J/ e* P. W$ F+ cContainers: 0
Running: 0
Paused: 0
- A8 w& W9 @) L4 N Stopped: 0
" @# e& U8 i/ S; D9 ^7 n, ZImages: 0
Server Version: 1.13.1
, t5 ^" M" s5 F. u" cStorage Driver: aufs
' M9 T1 m. X9 C7 y Root Dir: /var/lib/docker/aufs
7 s$ M6 F4 j. C( Y Backing Filesystem: extfs
Dirs: 0
Dirperm1 Supported: true
# T; x3 N' T! |8 i. J) R& QLogging Driver: json-file
Cgroup Driver: cgroupfs
* [/ v$ D3 H' ^# UPlugins:
& Q0 G  o* d& @, H1 } Volume: local
* {. ~6 _4 c9 [- W+ I" r/ M' X Network: bridge host macvlan null overlay
Swarm: inactive
( [! `' ]: u9 {5 LRuntimes: runc
  I/ \3 g) v' j7 ^  PDefault Runtime: runc
Init Binary: docker-init
6 u3 A  p. ]2 y5 R. ocontainerd version:  (expected: aa8187dbd3b7ad67d8e5e3a15115d3eef43a7ed1)
runc version: N/A (expected: 9df8b306d01f59d3a8029be411de015b7304dd8f)
init version: N/A (expected: 949e6facb77383876aeff8a6944dde66b3089574)
Security Options:
: c7 w  |' A9 W. R apparmor
" {1 Q, m' p' U seccomp
. B6 b) B8 I7 w* Q* [  Profile: default
4 g4 a2 ~! F3 I" d' l) EKernel Version: 4.4.0-21-generic
Operating System: Ubuntu 16.04 LTS
OSType: linux
, k3 K' k" W- y# R7 R  K& A( m9 sArchitecture: x86_64
5 \; g& m) i& Y2 ^) t- NCPUs: 1
Total Memory: 1.937 GiB
& ]6 F/ T% Y  {' M& J( |Name: dockerserver
ID: GIRM:EVPM:YTKL:DEVT:L2HM:ELGM:EYXU:3PDE:CHJB:D63L:KXWY:HSOD
Docker Root Dir: /var/lib/docker
7 T9 \) A( c  R( {9 j0 aDebug Mode (client): false
" }, I7 {1 d0 Q+ v0 jDebug Mode (server): false
Registry: https://index.docker.io/v1/
5 p" A& z. k4 \) UWARNING: No swap limit support
Experimental: false
9 k$ J# R$ |6 o! EInsecure Registries:
5 r- s9 J4 V1 J6 c. {# M7 [7 `0 | 127.0.0.0/8
7 g, G, _! k* v  i- ]Live Restore Enabled: false

admin

使用sudo systemctl status docker命令可以查看docker运行状态
sudo systemctl status docker
● docker.service - Docker Application Container Engine
   Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled)
9 G! X' e8 Q% i4 u+ M/ H- C  d" }- g   Active: active (running) since Thu 2018-02-15 23:51:11 CST; 2min 31s ago
     Docs: https://docs.docker.com
Main PID: 9615 (dockerd)
   CGroup: /system.slice/docker.service
           ├─9615 /usr/bin/dockerd -H fd://
           └─9620 containerd -l unix:///var/run/docker/libcontainerd/docker-containerd.sock --metrics-interval=0 --start-timeout 2m --state-dir /var/run/docker/libcontainerd/contai

9 s7 O, M0 V; k* P9 ]! ?Feb 15 23:51:11 dockerserver dockerd[9615]: time="2018-02-15T23:51:11.836995993+08:00" level=info msg="Loading containers: done."
( i$ \4 p+ E* `0 z' V- pFeb 15 23:51:11 dockerserver dockerd[9615]: time="2018-02-15T23:51:11.841195945+08:00" level=warning msg="Couldn't run auplink before unmount /var/lib/docker/tmp/docker-aufs-union3
' ]* v5 x: Y1 M' {* j6 s$ I" BFeb 15 23:51:11 dockerserver dockerd[9615]: time="2018-02-15T23:51:11.850940606+08:00" level=warning msg="failed to retrieve runc version: unknown output format: runc version spec:
3 c& A; X# n  D6 z  Z3 ^* V: KFeb 15 23:51:11 dockerserver dockerd[9615]: time="2018-02-15T23:51:11.852341493+08:00" level=warning msg="failed to retrieve docker-init version: unknown output format: tini versio
Feb 15 23:51:11 dockerserver dockerd[9615]: time="2018-02-15T23:51:11.852810750+08:00" level=info msg="Daemon has completed initialization"
) y# j' p  S: G2 y5 mFeb 15 23:51:11 dockerserver dockerd[9615]: time="2018-02-15T23:51:11.853033183+08:00" level=info msg="Docker daemon" commit=092cba3 graphdriver=aufs version=1.13.1
% H% @/ [" g9 M5 X0 i7 BFeb 15 23:51:11 dockerserver systemd[1]: Started Docker Application Container Engine.
) @; Y( m( C; f: q# m% h0 N, HFeb 15 23:51:11 dockerserver dockerd[9615]: time="2018-02-15T23:51:11.867400168+08:00" level=info msg="API listen on /var/run/docker.sock"
Feb 15 23:52:41 dockerserver dockerd[9615]: time="2018-02-15T23:52:41.318996443+08:00" level=warning msg="failed to retrieve runc version: unknown output format: runc version spec:
: r, a4 n* G* k0 a! `5 g8 D3 f2 CFeb 15 23:52:41 dockerserver dockerd[9615]: time="2018-02-15T23:52:41.322871285+08:00" level=warning msg="failed to retrieve docker-init version: unknown output format: tini versio
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+ G% W3 p; G1 O. h1 ~同样可以使用sudo systemctl stop/start/restart docker 来停止/启动/重启docker服务。
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admin

使用sudo systemctl stop/start/restart docker 来停止/启动/重启docker服务。

admin

root@dockerserver:~# service docker status
● docker.service - Docker Application Container Engine
2 d+ E! A4 L7 W7 I   Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled)
   Active: active (running) since Wed 2018-06-20 21:23:55 CST; 6min ago
     Docs: https://docs.docker.com
5 s1 N* p' k  p1 B% M Main PID: 12816 (dockerd)
   CGroup: /system.slice/docker.service
           ├─12816 /usr/bin/dockerd -H fd://
9 c3 }& D9 N" b$ Y1 U7 R/ i           └─12821 containerd -l unix:///var/run/docker/libcontainerd/docker-containerd.so
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: b3 S4 z0 S, C- AJun 20 21:23:55 dockerserver dockerd[12816]: time="2018-06-20T21:23:55.068545836+08:00" le
Jun 20 21:23:55 dockerserver dockerd[12816]: time="2018-06-20T21:23:55.180055748+08:00" le
- V) F% d4 Y7 d+ J1 t0 C2 q6 x2 TJun 20 21:23:55 dockerserver dockerd[12816]: time="2018-06-20T21:23:55.252103969+08:00" le
Jun 20 21:23:55 dockerserver dockerd[12816]: time="2018-06-20T21:23:55.257639954+08:00" le
1 \: c. |2 j8 I% x) C) B8 b; d& K* AJun 20 21:23:55 dockerserver dockerd[12816]: time="2018-06-20T21:23:55.265876607+08:00" le
$ n2 e0 G" H4 K& @Jun 20 21:23:55 dockerserver dockerd[12816]: time="2018-06-20T21:23:55.267256613+08:00" le
Jun 20 21:23:55 dockerserver dockerd[12816]: time="2018-06-20T21:23:55.267785022+08:00" le
9 ^' O6 Z- D1 C' z5 c% d. \Jun 20 21:23:55 dockerserver dockerd[12816]: time="2018-06-20T21:23:55.268014925+08:00" le
Jun 20 21:23:55 dockerserver systemd[1]: Started Docker Application Container Engine.
Jun 20 21:23:55 dockerserver dockerd[12816]: time="2018-06-20T21:23:55.284974707+08:00" le
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