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Ubuntu中安裝Docker社區(qū)版（CE）
Docker社區(qū)版（CE）：為了開發(fā)人員或小團隊創(chuàng)建基于容器的應用,與團隊成員分享和自動化的開發(fā)管道。docker-ce提供了簡單的安裝和快速的安裝，以便可以立即開始開發(fā)。docker-ce集成和優(yōu)化，基礎(chǔ)設(shè)施。
實驗環(huán)境
操作系統(tǒng)：Ubuntu 18.04.4 LTS
LAN IP ：192.168.3.22
Docker是現(xiàn)代軟件開發(fā)和DevOps持續(xù)集成和部署管道中不可或缺的一部分,大部分公司都使用容器化技術(shù)，降低服務器成本。
安裝必要的系統(tǒng)資源庫
root@linuxcool:~# apt-get update
root@linuxcool:~# apt-get -y install apt-transport-https ca-certificates curl software-properties-common
安裝GPG證3書
root@linuxcool:~# curl -fsSL https://mirrors.nwafu.edu.cn/docker-ce/linux/ubuntu/gpg | apt-key add -
Docker服務器在國外，如果使用docker.io來安裝docker會非常慢，有時候還會超時斷開導致無法安裝成功；所以，我這里使用的是國內(nèi)“西北農(nóng)林科技大學網(wǎng)絡(luò)與教育技術(shù)中心”鏡像加速，國內(nèi)還有很多鏡像加速站點，比如：阿里云、騰訊云、網(wǎng)易、清華大學等，
更新系統(tǒng)并安裝Docker-CE
root@linuxcool:~# apt-get -y update
root@linuxcool:~# apt-get -y install docker-ce
通過以上命令安裝的是docker最新版本，如果要安裝docker，請繼續(xù)閱讀下文，
查找Docker-CE的版本
apt-cache madison docker-ce
docker-ce | 5:19.03.8~3-0~ubuntu-bionic | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 5:19.03.7~3-0~ubuntu-bionic | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 5:19.03.6~3-0~ubuntu-bionic | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 5:19.03.5~3-0~ubuntu-bionic | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 5:19.03.4~3-0~ubuntu-bionic | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 5:19.03.3~3-0~ubuntu-bionic | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 5:19.03.2~3-0~ubuntu-bionic | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 5:19.03.1~3-0~ubuntu-bionic | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 5:19.03.0~3-0~ubuntu-bionic | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 5:18.09.9~3-0~ubuntu-bionic | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 5:18.09.8~3-0~ubuntu-bionic | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 5:18.09.7~3-0~ubuntu-bionic | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 5:18.09.6~3-0~ubuntu-bionic | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 5:18.09.5~3-0~ubuntu-bionic | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 5:18.09.4~3-0~ubuntu-bionic | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 5:18.09.3~3-0~ubuntu-bionic | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 5:18.09.2~3-0~ubuntu-bionic | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 5:18.09.1~3-0~ubuntu-bionic | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 5:18.09.0~3-0~ubuntu-bionic | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 18.06.3~ce~3-0~ubuntu | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 18.06.2~ce~3-0~ubuntu | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 18.06.1~ce~3-0~ubuntu | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 18.06.0~ce~3-0~ubuntu | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
docker-ce | 18.03.1~ce~3-0~ubuntu | https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic/stable amd64 Packages
安裝指定版本的Docker-CE，比如要安裝19.03.8~3-0~ubuntu-bionic
root@linuxcool:~# apt-get -y install docker-ce=19.03.8~3-0~ubuntu-bionic
安裝校驗
root@linuxcool:~# docker version
Client: Docker Engine - Community
Version: 19.03.8
API version: 1.40
Go version: go1.12.17
Git commit: afacb8b7f0
Built: Wed Mar 11 01:25:46 2020
OS/Arch: linux/amd64
Experimental: false
Server: Docker Engine - Community
Engine:
Version: 19.03.8
API version: 1.40 (minimum version 1.12)
Go version: go1.12.17
Git commit: afacb8b7f0
Built: Wed Mar 11 01:24:19 2020
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.2.13
GitCommit: 7ad184331fa3e55e52b890ea95e65ba581ae3429
runc:
Version: 1.0.0-rc10
GitCommit: dc9208a3303feef5b3839f4323d9beb36df0a9dd
docker-init:
Version: 0.18.0
GitCommit: fec3683
配置鏡像加速
創(chuàng)建daemon.json配置文件
root@linuxcool:~# vim /etc/docker/daemon.json
{
"registry-mirrors": ["https://dockerhub.mirrors.nwafu.edu.cn/"]
}
默認daemon.json文件不存在，如果daemon.json文件不存在，自己創(chuàng)建
加載配置，重啟docker服務
root@linuxcool:~# systemctl daemon-reload
root@linuxcool:~# systemctl restart docker
驗證鏡像加速是否配置生效
root@linuxcool:~# docker info
Client:
Debug Mode: false
Server:
Containers: 0
Running: 0
Paused: 0
Stopped: 0
Images: 0
Server Version: 19.03.8
Storage Driver: overlay2
Backing Filesystem:
Supports d_type: true
Native Overlay Diff: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
Volume: local
Network: bridge host ipvlan macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 7ad184331fa3e55e52b890ea95e65ba581ae3429
runc version: dc9208a3303feef5b3839f4323d9beb36df0a9dd
init version: fec3683
Security Options:
apparmor
seccomp
Profile: default
Kernel Version: 5.3.0-51-generic
Operating System: Ubuntu 18.04.4 LTS
OSType: linux
Architecture: x86_64
CPUs: 8
Total Memory: 15.64GiB
Name: linuxcool
ID: K252:G32L:GWWN:J5FE:3MFZ:2ITG:UE7Y:Y26F:QT3Q:2PLS:HCUX:PJYZ
Docker Root Dir: /var/lib/docker
Debug Mode: false
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
Insecure Registries:
127.0.0.0/8
Registry Mirrors:
https://dockerhub.mirrors.nwafu.edu.cn/
Live Restore Enabled: false
WARNING: No swap limit support
Registry Mirrors默認是docker.io，如果看到Registry Mirrors變https://dockerhub.mirrors.nwafu.edu.cn說明配置已經(jīng)生效。
docker服務管理
#自啟服務
root@linuxcool:~# systemctl enable docker.service
#服務狀態(tài)
root@linuxcool:~# systemctl status docker.service
#啟動服務
root@linuxcool:~# systemctl start docker.service
#重啟服務
root@linuxcool:~# systemctl restart docker.service
#停止服務
root@linuxcool:~# systemctl stop docker.service
拉取鏡像
root@linuxcool:~# docker pull centos:8.1.1911
8.1.1911: Pulling from library/centos
8a29a15cefae: Pull complete
Digest: sha256:fe8d824220415eed5477b63addf40fb06c3b049404242b31982106ac204f6700
Status: Downloaded newer image for centos:8.1.1911
docker.io/library/centos:8.1.1911
本文題目：Ubuntu中安裝Docker社區(qū)版（CE）
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