ubuntu安装docker环境

admin

安装docker
    各个操作系统的安装可以访问：
) _# }$ U* X+ m6 l5 b8 b5 }! t( }     https://docs.docker.com/engine/installation
7 G" w3 r: z( o1 ^1 r6 S; v" ^docker分为开源的免费的CE版本和收费的EE版本：
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：
3 A& ~2 V; J; j- B+ {          配置docker的apt源
4 Q: `1 {5 b* ~8 O/ C# w6 E              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
   $sudo apt-get install -y apt-transport-https ca-certificates curl software-properties-common
6 X+ _0 m: Q0 y添加docker官方的GPG key
   
, Z& X4 E4 m3 T. a3 \( A2 n+ Dcurl -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
# K0 f% p" P3 \    sudo add-apt-repository  "deb [arch=amd64] https://download.docker.com/linux/ubuntu \ $(lsb_release -cs) stable"
安装docker
      更新源：
     sudo apt-get update
     安装docker-ce包
; x: M9 U- A, f1 P( r1 e3 k( i        apt-get install -y docker-ce
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4 s: f8 ^8 d2 T" Q; w    安装更新了，安装失败：
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. P, Y$ Y1 L/ R! I; \3 X: u     sudo grep device-mapper /proc/devices
& K2 W4 ?0 b. `252 device-mapper
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: Y6 T8 {4 N. P  \如果没有出现就需要执行下面命令
    root@dockerserver:~# modprobe dm_mod
root@dockerserver:~# sudo grep device-mapper /proc/devices
252 device-mapper


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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
' E$ Y; G& E/ p* H" ~( F$ 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
Containers: 0
Running: 0
2 R1 z  Q* X- X; }6 f8 h Paused: 0
* {' G1 f6 x/ K2 s; Z# s4 c. w4 ^ Stopped: 0
Images: 0
Server Version: 1.13.1
; w0 y+ X0 R& t4 {- gStorage Driver: aufs
Root Dir: /var/lib/docker/aufs
Backing Filesystem: extfs
Dirs: 0
Dirperm1 Supported: true
Logging Driver: json-file
) x& B$ Z* F/ [8 N4 H6 U! LCgroup Driver: cgroupfs
Plugins:
- u8 e2 ?: L- | Volume: local
) V3 k, u$ V; W2 D Network: bridge host macvlan null overlay
1 _) }9 m6 t! W1 DSwarm: inactive
" w/ r: z+ Y- T7 S! VRuntimes: runc
; A6 r; N- q* }! YDefault Runtime: runc
5 U9 {0 [/ c! x4 IInit Binary: docker-init
containerd version:  (expected: aa8187dbd3b7ad67d8e5e3a15115d3eef43a7ed1)
runc version: N/A (expected: 9df8b306d01f59d3a8029be411de015b7304dd8f)
+ R( x* K# L( y2 r: \' Einit version: N/A (expected: 949e6facb77383876aeff8a6944dde66b3089574)
Security Options:
+ ~6 h5 U" j$ l apparmor
- \! W  k2 y, M" Q! r/ p3 k seccomp
  Profile: default
Kernel Version: 4.4.0-21-generic
Operating System: Ubuntu 16.04 LTS
) `$ [& G/ @& ZOSType: linux
0 ]% h- y3 U/ O: q: NArchitecture: x86_64
CPUs: 1
$ e1 d) f: |( c8 W. M; z/ z0 CTotal Memory: 1.937 GiB
, K3 }4 v2 K1 D3 I7 c. I; f2 fName: dockerserver
ID: GIRM:EVPM:YTKL:DEVT:L2HM:ELGM:EYXU:3PDE:CHJB:D63L:KXWY:HSOD
/ Y  m( d, k1 f$ d# M- A" QDocker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
" O* \' s- f, s2 ^* y. d4 E; c( g) \3 JWARNING: No swap limit support
Experimental: false
Insecure Registries:
, L% H! H5 L9 M* y 127.0.0.0/8
( U' A; _1 O6 R  mLive 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
; ?3 \* [* b, g3 K& l" V● docker.service - Docker Application Container Engine
& y/ c4 l* J9 S2 Q8 F1 F/ o" H   Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled)
   Active: active (running) since Thu 2018-02-15 23:51:11 CST; 2min 31s ago
     Docs: https://docs.docker.com
: L7 z: m. t7 K9 [ Main PID: 9615 (dockerd)
   CGroup: /system.slice/docker.service
% J4 P% d/ w( K5 m8 Q% m           ├─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 {5 I, j% ?; ]) @* T/ h. Y- kFeb 15 23:51:11 dockerserver dockerd[9615]: time="2018-02-15T23:51:11.836995993+08:00" level=info msg="Loading containers: done."
Feb 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
Feb 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:
& u' m. v9 o7 y* O# R9 ]( CFeb 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
0 T( _+ t# X8 I4 zFeb 15 23:51:11 dockerserver dockerd[9615]: time="2018-02-15T23:51:11.852810750+08:00" level=info msg="Daemon has completed initialization"
! U. L4 [. m$ ~+ y* sFeb 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
+ R* V- k8 g7 l) \# }4 {Feb 15 23:51:11 dockerserver systemd[1]: Started Docker Application Container Engine.
! E& S. I. P" g0 B0 KFeb 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:
2 q4 O( i$ f4 m8 Z+ b9 aFeb 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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' x  n8 p1 s" z! Q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
( ]* |0 t7 `0 U# y* Q0 s: k● docker.service - Docker Application Container Engine
   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
' d8 H1 [2 \# \: O. y% O+ }- `     Docs: https://docs.docker.com
Main PID: 12816 (dockerd)
$ c7 U9 q- U6 r0 `* |   CGroup: /system.slice/docker.service
           ├─12816 /usr/bin/dockerd -H fd://
$ q+ j4 e& f& R1 s( G4 _9 {; E1 l           └─12821 containerd -l unix:///var/run/docker/libcontainerd/docker-containerd.so

8 B# R1 e& c* zJun 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
Jun 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
- _8 {+ ~) L/ pJun 20 21:23:55 dockerserver dockerd[12816]: time="2018-06-20T21:23:55.265876607+08:00" le
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
' j5 l+ Z8 P! E* `+ {Jun 20 21:23:55 dockerserver dockerd[12816]: time="2018-06-20T21:23:55.268014925+08:00" le
7 ?0 e. E* o" ^& q8 rJun 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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