Docker 容器技術
前言：
以前感受Docker是一種小虛擬機，docker和KVM虛擬機之間有什麼區別、聯繫、能夠應用在什麼樣的生產環境？ php
1、Docker是什麼以及和KVM的區別
1.docker概念？html
Docker是基於LXC容器技術使用Go開發的開源軟件，能夠打包代碼的運行環境+代碼，而且移植性強，能夠把代碼的運行環境+代碼打包成docker鏡像，處處運行；java
2.docker的設計理念python
Docker的設計理念：構建（build）、運輸（ship）、運行（running）mysql
3.docker的架構nginx
docker是C/S 架構 docker server 是服務端，咱們執行的docker命令就是操做客戶端；git
[root@localhost zhanggen]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE ----------------------------------------------------------- [root@localhost zhanggen]# 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 2019-03-20 15:19:16 CST; 6min ago Docs: https://docs.docker.com Main PID: 55180 (dockerd) Memory: 75.6M CGroup: /system.slice/docker.service └─55180 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
4.論docker and kvmweb
Docker Server 掛了全部的docker容器都會掛掉 （kvm的管理軟件 和libvirtd徹底隔離）redis
kvm是在內核級別徹底虛擬化出來的虛擬機 虛擬機之間徹底隔離sql
docker 容器是在操做系統層面進行的資源的隔離
Docker和KVM均可以進行狀態的回滾
5.docker的優點和應用場景
簡化了系統配置、減小了代碼和系統環境間的依賴性（運行別人的代碼還要部署別人的運行環境）
代碼流水線管理 代碼開發---->代碼測試----》代碼到生產 一個docker容器搞定
減小開發部署系統環境工做，提升開發效率。
docker容器和虛擬機相比能夠快速得運行起來
面向產品：把本身的系統運行環境+代碼打包進docker容器，直接完產品交付；
面向開發：作爲一個python開發我不再用去裝什麼Python三、pip、Nginx了，我只關心個人代碼怎麼寫？
面向測試：測試的時候不用搭建多套系統環境了
面向運行：環境一致性，系統環境能夠回滾
面向架構：自動化擴容
6.docker安裝、配置、操做、
{ "registry-mirrors": ["https://pee6w651.mirror.aliyuncs.com"] }
查看docker日誌
這個很關鍵，遇到報錯必定不要心浮氣躁，也不要直接去百度搜索報錯內容， 科學的作法是：看日誌-----》鎖定問題-----》解決問題
[root@localhost zhanggen]# journalctl -xe Mar 20 14:28:31 localhost.localdomain polkitd[582]: Registered Authentication Agent for unix-process:55506:719734 (system bus name :1.510 [/ Mar 20 14:28:31 localhost.localdomain systemd[1]: Starting Docker Storage Setup... -- Subject: Unit docker-storage-setup.service has begun start-up -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit docker-storage-setup.service has begun starting up. Mar 20 14:28:31 localhost.localdomain container-storage-setup[55512]: INFO: Volume group backing root filesystem could not be determined Mar 20 14:28:31 localhost.localdomain systemd[1]: Started Docker Storage Setup. -- Subject: Unit docker-storage-setup.service has finished start-up -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit docker-storage-setup.service has finished starting up. -- -- The start-up result is done. Mar 20 14:28:31 localhost.localdomain systemd[1]: Starting Docker Application Container Engine... -- Subject: Unit docker.service has begun start-up -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit docker.service has begun starting up. Mar 20 14:28:31 localhost.localdomain dockerd-current[55557]: unable to configure the Docker daemon with file /etc/docker/daemon.json: inval Mar 20 14:28:31 localhost.localdomain systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE Mar 20 14:28:31 localhost.localdomain systemd[1]: Failed to start Docker Application Container Engine. -- Subject: Unit docker.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit docker.service has failed. -- -- The result is failed. Mar 20 14:28:31 localhost.localdomain systemd[1]: Unit docker.service entered failed state. Mar 20 14:28:31 localhost.localdomain systemd[1]: docker.service failed. Mar 20 14:28:31 localhost.localdomain polkitd[582]: Unregistered Authentication Agent for unix-process:55506:719734 (system bus name :1.510,
查看docker版本
[root@localhost zhanggen]# docker version Client: Version: 1.13.1 API version: 1.26 Package version: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
7.docker的組件
docker的組件分爲：鏡像image、容器container 、倉庫（repository）
鏡像：全部的docker容器都是由鏡像啓動構建的
倉庫：集中存放鏡像，用戶同網絡訪問倉庫得到想要鏡像 DockerHub，就是GitHub同樣；
容器：就是由鏡像建立的實例（簡化版的Linux環境）
2、docker快速入門
從docker的三大組件開始快速入門docker；
1.docker鏡像
去docker Hub 上搜素鏡像
[root@localhost zhanggen]# docker search centos NAME DESCRIPTION STARS OFFICIAL AUTOMATED centos The official build of CentOS. 5261 [OK] ansible/centos7-ansible Ansible on Centos7 121 [OK] jdeathe/centos-ssh CentOS-6 6.10 x86_64 / CentOS-7 7.5.1804 x86… 109 [OK] consol/centos-xfce-vnc Centos container with "headless" VNC session… 83 [OK] imagine10255/centos6-lnmp-php56 centos6-lnmp-php56 52 [OK] centos/mysql-57-centos7 MySQL 5.7 SQL database server 49 tutum/centos Simple CentOS docker image with SSH access 44 gluster/gluster-centos Official GlusterFS Image [ CentOS-7 + Glust… 40 [OK] openshift/base-centos7 A Centos7 derived base image for Source-To-I… 39 centos/postgresql-96-centos7 PostgreSQL is an advanced Object-Relational … 37 kinogmt/centos-ssh CentOS with SSH 26 [OK] centos/httpd-24-centos7 Platform for running Apache httpd 2.4 or bui… 22 openshift/jenkins-2-centos7 A Centos7 based Jenkins v2.x image for use w… 20 centos/php-56-centos7 Platform for building and running PHP 5.6 ap… 20 pivotaldata/centos-gpdb-dev CentOS image for GPDB development. Tag names… 10 openshift/wildfly-101-centos7 A Centos7 based WildFly v10.1 image for use … 6 openshift/jenkins-1-centos7 DEPRECATED: A Centos7 based Jenkins v1.x ima… 4 darksheer/centos Base Centos Image -- Updated hourly 3 [OK] pivotaldata/centos-mingw Using the mingw toolchain to cross-compile t… 2 pivotaldata/centos Base centos, freshened up a little with a Do… 2 pivotaldata/centos-gcc-toolchain CentOS with a toolchain, but unaffiliated wi… 1 blacklabelops/centos CentOS Base Image! Built and Updates Daily! 1 [OK] openshift/wildfly-81-centos7 A Centos7 based WildFly v8.1 image for use w… 1 smartentry/centos centos with smartentry 0 [OK] jameseckersall/sonarr-centos Sonarr on CentOS 7
去docker hub上下載鏡像
[root@localhost zhanggen]# docker pull centos Using default tag: latest latest: Pulling from library/centos 8ba884070f61: Pull complete Digest: sha256:8d487d68857f5bc9595793279b33d082b03713341ddec91054382641d14db861 Status: Downloaded newer image for centos:latest [root@localhost zhanggen]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE centos latest 9f38484d220f 6 days ago 2
docker鏡像保存爲文件（鏡像導出）
[root@localhost zhanggen]# docker save -o Centos.tart centos [root@localhost zhanggen]# ls Centos.tart Desktop Documents Downloads Music Pictures Public Templates Videos
文件還原爲docker鏡像（鏡像導入）
[root@localhost zhanggen]# docker load --input Centos.tar Loaded image: centos:latest [root@localhost zhanggen]#
刪除docker鏡像
[root@localhost zhanggen]# docker rmi -f centos Untagged: centos:latest Untagged: centos@sha256:8d487d68857f5bc9595793279b33d082b03713341ddec91054382641d14db861 [root@localhost zhanggen]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE <none> <none> 9f38484d220f 6 days ago 202MB [root@localhost zhanggen]# docker pull centos Using default tag: latest latest: Pulling from library/centos Digest: sha256:8d487d68857f5bc9595793279b33d082b03713341ddec91054382641d14db861 Status: Downloaded newer image for centos:latest [root@localhost zhanggen]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE centos latest 9f38484d220f 6 days ago 202MB [root@localhost zhanggen]#
2.docker容器
鏡像的管理就是這些，主要仍是本身能夠構建鏡像
[root@localhost zhanggen]# docker run centos /bin/echo 'hellow I wanna fuck you!!' WARNING: IPv4 forwarding is disabled. Networking will not work. hellow I wanna fuck you!! [root@localhost zhanggen]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES [root@localhost zhanggen]#
PS：爲何 我運行了一個 echo 程序 docker容器就立刻中止了？
由於docker容器默認會在docker容器的前臺運行1個進程，這個進程結束docker，容器也隨之中止了；（也許這就是它的一次性設計理念吧。。）
是否是很納悶 爲何docker運行的進程退出，容器怎麼就退出了？ 這就是docker的理念---不可變基礎設施理念！
docker就是給進程作隔離使用的，不一樣於虛擬機，虛擬機纔是給操做系統作隔離使用的；
docker只是個容器 不是虛擬機！
[root@261f12e2d6e4 /]# cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 78 model name : Intel(R) Core(TM) i7-6500U CPU @ 2.50GHz stepping : 3 microcode : 0x88 cpu MHz : 2591.294 cache size : 4096 KB physical id : 0 siblings : 1 core id : 0 cpu cores : 1 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 22 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon nopl xtopology tsc_reliable nonstop_tsc eagerfpu pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch arat fsgsbase tsc_adjust bmi1 avx2 smep bmi2 invpcid mpx rdseed adx smap clflushopt xsaveopt xsavec bogomips : 5184.39 clflush size : 64 cache_alignment : 64 address sizes : 43 bits physical, 48 bits virtual power management:
運行新的docker --name (容器名稱) mydocker -t (terminal 打開一個終端) -i （std input 打開標準輸入 ）
[root@localhost zhanggen]# docker run --name mydocker -t -i centos /bin/bash
WARNING: IPv4 forwarding is disabled. Networking will not work.
[root@261f12e2d6e4 /]#
啓動一個關閉的docker容器
[root@localhost zhanggen]# docker start mydocker mydocker [root@localhost zhanggen]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 261f12e2d6e4 centos "/bin/bash" About an hour ago Up 7 seconds mydocker d0dd5f7a79e8 centos "/bin/echo 'hellow I…" About an hour ago Exited (0) About an hour ago sharp_chandrasekhar
進如正在運行的容器看看
[root@localhost zhanggen]# docker attach mydocker
[root@261f12e2d6e4 /]#
刪除正在中止的容器
[root@localhost zhanggen]# docker rm -f e627d59e818c e627d59e818c [root@localhost zhanggen]# docker rm -f d0dd5f7a79e8 d0dd5f7a79e8 [root@localhost zhanggen]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES [root@localhost zhanggen]#
[root@localhost /]# docker rm $(docker ps -aq) eecdba33cb61 b2da31fc0100 06afb1402c3e [root@localhost /]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES [root@localhost /]#
3.進入正在運行中docker容器的2種最佳方式
查看正在運行容器的進程
[root@localhost zhanggen]# docker inspect -f "{{.State.Pid}}" mydocker 64721
經過進程ID反覆進入docker容器
[root@localhost zhanggen]# nsenter -t 64721 -m -u -i -n -p -bash: __vte_prompt_command: command not found [root@261f12e2d6e4 /]#
爲何經過 nsenter -t 64721 -m -u -i -n -p 進入docker容器exit以後不退出？
其實就是多開了一個bash進程
[root@localhost zhanggen]# nsenter -t 64721 -m -u -i -n -p -bash: __vte_prompt_command: command not found [root@261f12e2d6e4 /]# ps -ef UID PID PPID C STIME TTY TIME CMD root 1 0 0 08:43 pts/0 00:00:00 /bin/bash root 28 0 0 08:49 pts/0 00:00:00 -bash #其實就是多開了1個bash進程 root 42 28 0 08:52 pts/0 00:00:00 ps -ef -bash: __vte_prompt_command: command not found [root@261f12e2d6e4 /]# exit logout [root@localhost zhanggen]# nsenter -t 64721 -m -u -i -p -bash: __vte_prompt_command: command not found [root@261f12e2d6e4 /]#
docker exec 在不進入docker容器前提下 執行1個命令（一個程序）
root@localhost zhanggen]# docker exec mydocker whoami root [root@localhost zhanggen]# docker exec mydocker pwd / [root@localhost zhanggen]# docker exec mydocker ls anaconda-post.log bin dev etc
經過docker exec 打開bash程序之間進入docker容器
[root@localhost zhanggen]# docker exec -it mydocker /bin/bash [root@261f12e2d6e4 /]# exit exit [root@localhost zhanggen]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE centos latest 9f38484d220f 6 days ago 202MB [root@localhost zhanggen]#
在宿主機後臺運行docker容器
[root@localhost zhanggen]# docker run --name my_nginx -d nginx WARNING: IPv4 forwarding is disabled. Networking will not work. 3aafe4fe15248ec4cd526a1873b6fc1e50b9c87926f6504755ebd021f76f5d61 [root@localhost zhanggen]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 3aafe4fe1524 nginx "nginx -g 'daemon of…" 4 seconds ago Up 3 seconds 80/tcp my_nginx [root@localhost zhanggen]#
2、docker的網絡訪問
As a senior Web application developer，how to access it if I`ve I developed a Web application in docker container.
我在docker裏面寫了個Django程序，我怎麼訪問它的8001端口呢？這就須要給docker容器開通網絡訪問功能；
docker安裝以後會自動建立一個 docker0的橋接網卡
[root@localhost zhanggen]# ifconfig docker0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 172.17.0.1 netmask 255.255.0.0 broadcast 172.17.255.255 inet6 fe80::42:b4ff:fe4c:7745 prefixlen 64 scopeid 0x20<link> ether 02:42:b4:4c:77:45 txqueuelen 0 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 3 bytes 258 (258.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions
docker的網絡就是經過docker0這個網橋進行 NAT 轉換到docker容器的
配置centos7開啓IPV4轉發並重啓網卡
net.ipv4.ip_forward=1
開啓隨機端口訪問
[root@localhost zhanggen]# vim /usr/lib/sysctl.d/00-system.conf [root@localhost zhanggen]# docker run -d -P nginx 06afb1402c3eb177dbae8b72cd94be90c63713ce73a1bac7ab8f85ecdae50caa [root@localhost zhanggen]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 06afb1402c3e nginx "nginx -g 'daemon of…" 11 seconds ago Up 9 seconds 0.0.0.0:32769->80/tcp zen_hellman
指定端口進行訪問
[root@localhost zhanggen]# docker run --name mydocker -d -p 8001:80 nginx b2da31fc010033f378e0930a2b77cec498ba6cbc1d288353562e3d0c6b23ae3c [root@localhost zhanggen]#
3、docker的數據管理
說到docker的數據管理，首先得清楚docker鏡像的分層存儲結構？
docker鏡像是採用分層結構存儲的，Docker鏡像是隻讀、不可寫的，docker容器在docker鏡像之上是可寫的，用戶在docker容器的基礎上操做以後commit 修改爲只讀鏡像，蓋了一層再來一層....
As I mentioned docker 採用的是一種開箱 既用-->用完--->即仍 的一次性理念，那麼在docker運行中產生的一些日誌..如何持久化？有一下兩種方式；
1.數據卷
咱們把宿主機中的一個目錄mount 到docker容器的一個目錄裏面，docker容器運行中產生的數據寫得宿主機的目錄裏；
[root@localhost zhanggen]# docker run -d --name nginx-volume -v /data nginx
70d688ad2c40e4490d05da0fa8bdbc0cc342315f1bbc61e7a63d4422832512c5
若是你想知道docker容器的 /data目錄到底掛載到宿主機的哪一個目錄上了？
[root@localhost zhanggen]# docker run -d --name nginx-volume -v /data nginx 70d688ad2c40e4490d05da0fa8bdbc0cc342315f1bbc61e7a63d4422832512c5 [root@localhost zhanggen]# docker inspect -f {{.Mounts}} nginx-volume [{volume 4fbd49850452bcca0a867f09776f716b137c5f13f5a8b8a3a5e84e26496f9fcd /var/lib/docker/volumes/4fbd49850452bcca0a867f09776f716b137c5f13f5a8b8a3a5e84e26496f9fcd/_data /data local true }] [root@localhost zhanggen]# ls Centos.tart Desktop Documents Downloads Music Pictures Public Templates Videos [root@localhost zhanggen]# cd /var/lib/docker/volumes/4fbd49850452bcca0a867f09776f716b137c5f13f5a8b8a3a5e84e26496f9fcd/_data [root@localhost _data]# pwd /var/lib/docker/volumes/4fbd49850452bcca0a867f09776f716b137c5f13f5a8b8a3a5e84e26496f9fcd/_data [root@localhost _data]# ls [root@localhost _data]#
root@localhost _data]# docker inspect -f {{.Mounts}} nginx-volume
[{volume 4fbd49850452bcca0a867f09776f716b137c5f13f5a8b8a3a5e84e26496f9fcd /var/lib/docker/volumes/4fbd49850452bcca0a867f09776f716b137c5f13f5a8b8a3a5e84e26496f9fcd/_data /data local true }]
[root@localhost _data]# pwd
/var/lib/docker/volumes/4fbd49850452bcca0a867f09776f716b137c5f13f5a8b8a3a5e84e26496f9fcd/_data
[root@localhost _data]# touch 草你媽王X聰
[root@localhost _data]# docker exec -it nginx-volume /bin/bash
root@70d688ad2c40:/# ls
bin boot data dev etc home lib lib64 media mnt opt proc root run sbin srv sys tmp usr var
root@70d688ad2c40:/# cd d
data/ dev/
root@70d688ad2c40:/# cd data/
root@70d688ad2c40:/data# ls
FUCK_WANGSICHONGTAMA ??????????????????
root@70d688ad2c40:/data#
在生產環境咱們通常會本身建立一個目錄 在掛載到docker目錄裏
[root@localhost _data]# docker run -d --name nginx-volume -v /data/docker/volume-nginx/:/data nginx 09fc60548e01040805d6de92ace28062055a91eb832129b075e7e2605c149b45 [root@localhost _data]# docker exec -it nginx-volume /bin/bash root@09fc60548e01:/# ls bin boot data dev etc home lib lib64 media mnt opt proc root run sbin srv sys tmp usr var root@09fc60548e01:/# cd data/ root@09fc60548e01:/data# ls root@09fc60548e01:/data# echo 'sss' > Martin.txt root@09fc60548e01:/data# ls Martin.txt root@09fc60548e01:/data# cat Martin.txt sss root@09fc60548e01:/data# exit exit [root@localhost _data]# pwd /var/lib/docker/volumes/4fbd49850452bcca0a867f09776f716b137c5f13f5a8b8a3a5e84e26496f9fcd/_data [root@localhost _data]# cd /data/docker/volume-nginx/ [root@localhost volume-nginx]# ls Martin.txt [root@localhost volume-nginx]# cat Martin.txt sss [root@localhost volume-nginx]#
2.數據卷容器
在容器是否運行、關閉的狀態下，容器之間均可以共享容器卷數據；（NFS）
使用--volumes-from 指定要和哪一個容器共享容器卷
[root@localhost volume-nginx]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 09fc60548e01 nginx "nginx -g 'daemon of…" 16 minutes ago Up 16 minutes 80/tcp nginx-volume [root@localhost volume-nginx]# docker run -it --name volume-test --volumes-from nginx-volume centos /bin/bash [root@c16407be0cf4 /]# ls data/ Martin.txt [root@c16407be0cf4 /]# exit exit [root@localhost volume-nginx]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 09fc60548e01 nginx "nginx -g 'daemon of…" 18 minutes ago Up 18 minutes 80/tcp nginx-volume [root@localhost volume-nginx]# docker exec -it nginx-volume /bin/bash root@09fc60548e01:/# ls data/ Martin.txt root@09fc60548e01:/#
生成環境：通常都會起 1個專門的容器掛載到宿主機的1個目錄上，之後其餘容器都 經過 --volumes-from 該容器 的形式來達到容器卷數據共享的效果；
4、docker鏡像的構建
docker鏡像是docker能夠傳播的介質，那麼如何製做本身的docker鏡像？分爲以下2種方式：
手動構建
本身在容器裏面作操做，操做完畢以後，commit成本身的鏡像，
Dockerfile構建
以文件的形式執行力裏面的命令進行快速構建，比較自動化化，相比容器較爲輕量也更易於傳播；
最後還會談談我在生產環境中使用dockerfile的經驗。
1.手動建立鏡像
docker run --name mynginx -it centos #使用基礎鏡像 centos 運行1個名爲 mynginx 的容器
vim /etc/nginx/nginx.conf 進入docker容器，修改Nginx配置文件
exit 退出容器
docker ps -a #查看剛剛exit的容器
docker commit -m 'MyNginx' cd35 zhanggen/mynginx:v1 #commit把中止的容器提交到本地分支
docker images #製做完成 docker run --name mynginxv1 -d -p 81:80 zhanggen/mynginx:v1 nginx #啓動
PS：麻蛋發現本身製做的docker鏡像啓動不起來咋辦？
查看容器啓動的報錯日誌----》從新進入容器-----》檢查操做，修改---》從新提交本地分支-----》從新啓動
docker ps -a #查看啓動失敗的鏡像ID docker logs container_id #查看報錯日誌 docker run -it zhanggen/mynginx:v1 /bin/bash #從新運行 該鏡像進去修改 docker commit -m 'MyNginx' cd35 zhanggen/mynginx:v1 #修改完畢從新提交到本地分支 docker run --name mynginxv1 -d -p 81:80 zhanggen/mynginx:v1 nginx #從新啓動鏡像
2.Docker file構建
Docker file語法
OM centos MAINTAINER Martin.Zhang RUN rpm -ivh http://mirrors.aliyun.com/epel/epel-release-latest-7.noarch.rpm RUN yum install -y nginx && yum clean all RUN echo "daemon off;" >> /etc/nginx/nginx.conf ADD index.html /usr/share/nginx/html/index.html EXPOSE 80 CMD ["nginx"]
<html> <body> <h1>ssssssssss！！！！</h1> </body> </html>
[root@localhost nginx]# pwd /dockerfile/nginx [root@localhost nginx]# ls Dockerfile index.html [root@localhost nginx]# docker build -t mynginx:v2 . Sending build context to Docker daemon 3.072kB Step 1/8 : FROM centos ---> 9f38484d220f Step 2/8 : MAINTAINER Martin.Zhang ---> Running in be6d86ffa2a9 Removing intermediate container be6d86ffa2a9 ---> 0dc16c8dadcc Step 3/8 : RUN rpm -ivh http://mirrors.aliyun.com/epel/epel-release-latest-7.noarch.rpm ---> Running in 3ce6b480a0a2 warning: /var/tmp/rpm-tmp.qHH8Wh: Header V3 RSA/SHA256 Signature, key ID 352c64e5: NOKEY Retrieving http://mirrors.aliyun.com/epel/epel-release-latest-7.noarch.rpm Preparing... ######################################## Updating / installing... epel-release-7-11 ######################################## Removing intermediate container 3ce6b480a0a2 ---> 6b2b42a8e360 Step 4/8 : RUN yum install -y nginx && yum clean all ---> Running in 3e228aab6696 Loaded plugins: fastestmirror, ovl Determining fastest mirrors * base: mirrors.aliyun.com * epel: mirrors.aliyun.com * extras: mirrors.aliyun.com * updates: mirrors.aliyun.com Resolving Dependencies --> Running transaction check ---> Package nginx.x86_64 1:1.12.2-2.el7 will be installed --> Processing Dependency: nginx-all-modules = 1:1.12.2-2.el7 for package: 1:nginx-1.12.2-2.el7.x86_64 --> Processing Dependency: nginx-filesystem = 1:1.12.2-2.el7 for package: 1:nginx-1.12.2-2.el7.x86_64 --> Processing Dependency: nginx-filesystem for package: 1:nginx-1.12.2-2.el7.x86_64 --> Processing Dependency: openssl for package: 1:nginx-1.12.2-2.el7.x86_64 --> Processing Dependency: libprofiler.so.0()(64bit) for package: 1:nginx-1.12.2-2.el7.x86_64 --> Running transaction check ---> Package gperftools-libs.x86_64 0:2.6.1-1.el7 will be installed ---> Package nginx-all-modules.noarch 1:1.12.2-2.el7 will be installed --> Processing Dependency: nginx-mod-http-geoip = 1:1.12.2-2.el7 for package: 1:nginx-all-modules-1.12.2-2.el7.noarch --> Processing Dependency: nginx-mod-http-image-filter = 1:1.12.2-2.el7 for package: 1:nginx-all-modules-1.12.2-2.el7.noarch --> Processing Dependency: nginx-mod-http-perl = 1:1.12.2-2.el7 for package: 1:nginx-all-modules-1.12.2-2.el7.noarch --> Processing Dependency: nginx-mod-http-xslt-filter = 1:1.12.2-2.el7 for package: 1:nginx-all-modules-1.12.2-2.el7.noarch --> Processing Dependency: nginx-mod-mail = 1:1.12.2-2.el7 for package: 1:nginx-all-modules-1.12.2-2.el7.noarch --> Processing Dependency: nginx-mod-stream = 1:1.12.2-2.el7 for package: 1:nginx-all-modules-1.12.2-2.el7.noarch ---> Package nginx-filesystem.noarch 1:1.12.2-2.el7 will be installed ---> Package openssl.x86_64 1:1.0.2k-16.el7_6.1 will be installed --> Processing Dependency: openssl-libs(x86-64) = 1:1.0.2k-16.el7_6.1 for package: 1:openssl-1.0.2k-16.el7_6.1.x86_64 --> Processing Dependency: make for package: 1:openssl-1.0.2k-16.el7_6.1.x86_64 --> Running transaction check ---> Package make.x86_64 1:3.82-23.el7 will be installed ---> Package nginx-mod-http-geoip.x86_64 1:1.12.2-2.el7 will be installed --> Processing Dependency: GeoIP for package: 1:nginx-mod-http-geoip-1.12.2-2.el7.x86_64 --> Processing Dependency: libGeoIP.so.1()(64bit) for package: 1:nginx-mod-http-geoip-1.12.2-2.el7.x86_64 ---> Package nginx-mod-http-image-filter.x86_64 1:1.12.2-2.el7 will be installed --> Processing Dependency: gd for package: 1:nginx-mod-http-image-filter-1.12.2-2.el7.x86_64 --> Processing Dependency: libgd.so.2()(64bit) for package: 1:nginx-mod-http-image-filter-1.12.2-2.el7.x86_64 ---> Package nginx-mod-http-perl.x86_64 1:1.12.2-2.el7 will be installed --> Processing Dependency: perl >= 5.006001 for package: 1:nginx-mod-http-perl-1.12.2-2.el7.x86_64 --> Processing Dependency: perl(:MODULE_COMPAT_5.16.3) for package: 1:nginx-mod-http-perl-1.12.2-2.el7.x86_64 --> Processing Dependency: perl(Exporter) for package: 1:nginx-mod-http-perl-1.12.2-2.el7.x86_64 --> Processing Dependency: perl(XSLoader) for package: 1:nginx-mod-http-perl-1.12.2-2.el7.x86_64 --> Processing Dependency: perl(constant) for package: 1:nginx-mod-http-perl-1.12.2-2.el7.x86_64 --> Processing Dependency: perl(strict) for package: 1:nginx-mod-http-perl-1.12.2-2.el7.x86_64 --> Processing Dependency: perl(warnings) for package: 1:nginx-mod-http-perl-1.12.2-2.el7.x86_64 --> Processing Dependency: libperl.so()(64bit) for package: 1:nginx-mod-http-perl-1.12.2-2.el7.x86_64 ---> Package nginx-mod-http-xslt-filter.x86_64 1:1.12.2-2.el7 will be installed --> Processing Dependency: libxslt.so.1(LIBXML2_1.0.11)(64bit) for package: 1:nginx-mod-http-xslt-filter-1.12.2-2.el7.x86_64 --> Processing Dependency: libxslt.so.1(LIBXML2_1.0.18)(64bit) for package: 1:nginx-mod-http-xslt-filter-1.12.2-2.el7.x86_64 --> Processing Dependency: libexslt.so.0()(64bit) for package: 1:nginx-mod-http-xslt-filter-1.12.2-2.el7.x86_64 --> Processing Dependency: libxslt.so.1()(64bit) for package: 1:nginx-mod-http-xslt-filter-1.12.2-2.el7.x86_64 ---> Package nginx-mod-mail.x86_64 1:1.12.2-2.el7 will be installed ---> Package nginx-mod-stream.x86_64 1:1.12.2-2.el7 will be installed ---> Package openssl-libs.x86_64 1:1.0.2k-16.el7 will be updated ---> Package openssl-libs.x86_64 1:1.0.2k-16.el7_6.1 will be an update --> Running transaction check ---> Package GeoIP.x86_64 0:1.5.0-13.el7 will be installed ---> Package gd.x86_64 0:2.0.35-26.el7 will be installed --> Processing Dependency: libpng15.so.15(PNG15_0)(64bit) for package: gd-2.0.35-26.el7.x86_64 --> Processing Dependency: libjpeg.so.62(LIBJPEG_6.2)(64bit) for package: gd-2.0.35-26.el7.x86_64 --> Processing Dependency: libpng15.so.15()(64bit) for package: gd-2.0.35-26.el7.x86_64 --> Processing Dependency: libjpeg.so.62()(64bit) for package: gd-2.0.35-26.el7.x86_64 --> Processing Dependency: libfreetype.so.6()(64bit) for package: gd-2.0.35-26.el7.x86_64 --> Processing Dependency: libfontconfig.so.1()(64bit) for package: gd-2.0.35-26.el7.x86_64 --> Processing Dependency: libXpm.so.4()(64bit) for package: gd-2.0.35-26.el7.x86_64 --> Processing Dependency: libX11.so.6()(64bit) for package: gd-2.0.35-26.el7.x86_64 ---> Package libxslt.x86_64 0:1.1.28-5.el7 will be installed ---> Package perl.x86_64 4:5.16.3-294.el7_6 will be installed --> Processing Dependency: perl(Socket) >= 1.3 for package: 4:perl-5.16.3-294.el7_6.x86_64 --> Processing Dependency: perl(Scalar::Util) >= 1.10 for package: 4:perl-5.16.3-294.el7_6.x86_64 --> Processing Dependency: perl-macros for package: 4:perl-5.16.3-294.el7_6.x86_64 --> Processing Dependency: perl(threads::shared) for package: 4:perl-5.16.3-294.el7_6.x86_64 --> Processing Dependency: perl(threads) for package: 4:perl-5.16.3-294.el7_6.x86_64 --> Processing Dependency: perl(Time::Local) for package: 4:perl-5.16.3-294.el7_6.x86_64 --> Processing Dependency: perl(Time::HiRes) for package: 4:perl-5.16.3-294.el7_6.x86_64 --> Processing Dependency: perl(Storable) for package: 4:perl-5.16.3-294.el7_6.x86_64 --> Processing Dependency: perl(Socket) for package: 4:perl-5.16.3-294.el7_6.x86_64 --> Processing Dependency: perl(Scalar::Util) for package: 4:perl-5.16.3-294.el7_6.x86_64 --> Processing Dependency: perl(Pod::Simple::XHTML) for package: 4:perl-5.16.3-294.el7_6.x86_64 --> Processing Dependency: perl(Pod::Simple::Search) for package: 4:perl-5.16.3-294.el7_6.x86_64 --> Processing Dependency: perl(Getopt::Long) for package: 4:perl-5.16.3-294.el7_6.x86_64 --> Processing Dependency: perl(Filter::Util::Call) for package: 4:perl-5.16.3-294.el7_6.x86_64 --> Processing Dependency: perl(File::Temp) for package: 4:perl-5.16.3-294.el7_6.x86_64 --> Processing Dependency: perl(File::Spec::Unix) for package: 4:perl-5.16.3-294.el7_6.x86_64 --> Processing Dependency: perl(File::Spec::Functions) for package: 4:perl-5.16.3-294.el7_6.x86_64 --> Processing Dependency: perl(File::Spec) for package: 4:perl-5.16.3-294.el7_6.x86_64 --> Processing Dependency: perl(File::Path) for package: 4:perl-5.16.3-294.el7_6.x86_64 --> Processing Dependency: perl(Cwd) for package: 4:perl-5.16.3-294.el7_6.x86_64 --> Processing Dependency: perl(Carp) for package: 4:perl-5.16.3-294.el7_6.x86_64 ---> Package perl-Exporter.noarch 0:5.68-3.el7 will be installed ---> Package perl-constant.noarch 0:1.27-2.el7 will be installed ---> Package perl-libs.x86_64 4:5.16.3-294.el7_6 will be installed --> Running transaction check ---> Package fontconfig.x86_64 0:2.13.0-4.3.el7 will be installed --> Processing Dependency: fontpackages-filesystem for package: fontconfig-2.13.0-4.3.el7.x86_64 --> Processing Dependency: dejavu-sans-fonts for package: fontconfig-2.13.0-4.3.el7.x86_64 ---> Package freetype.x86_64 0:2.8-12.el7_6.1 will be installed ---> Package libX11.x86_64 0:1.6.5-2.el7 will be installed --> Processing Dependency: libX11-common >= 1.6.5-2.el7 for package: libX11-1.6.5-2.el7.x86_64 --> Processing Dependency: libxcb.so.1()(64bit) for package: libX11-1.6.5-2.el7.x86_64 ---> Package libXpm.x86_64 0:3.5.12-1.el7 will be installed ---> Package libjpeg-turbo.x86_64 0:1.2.90-6.el7 will be installed ---> Package libpng.x86_64 2:1.5.13-7.el7_2 will be installed ---> Package perl-Carp.noarch 0:1.26-244.el7 will be installed ---> Package perl-File-Path.noarch 0:2.09-2.el7 will be installed ---> Package perl-File-Temp.noarch 0:0.23.01-3.el7 will be installed ---> Package perl-Filter.x86_64 0:1.49-3.el7 will be installed ---> Package perl-Getopt-Long.noarch 0:2.40-3.el7 will be installed --> Processing Dependency: perl(Pod::Usage) >= 1.14 for package: perl-Getopt-Long-2.40-3.el7.noarch --> Processing Dependency: perl(Text::ParseWords) for package: perl-Getopt-Long-2.40-3.el7.noarch ---> Package perl-PathTools.x86_64 0:3.40-5.el7 will be installed ---> Package perl-Pod-Simple.noarch 1:3.28-4.el7 will be installed --> Processing Dependency: perl(Pod::Escapes) >= 1.04 for package: 1:perl-Pod-Simple-3.28-4.el7.noarch --> Processing Dependency: perl(Encode) for package: 1:perl-Pod-Simple-3.28-4.el7.noarch ---> Package perl-Scalar-List-Utils.x86_64 0:1.27-248.el7 will be installed ---> Package perl-Socket.x86_64 0:2.010-4.el7 will be installed ---> Package perl-Storable.x86_64 0:2.45-3.el7 will be installed ---> Package perl-Time-HiRes.x86_64 4:1.9725-3.el7 will be installed ---> Package perl-Time-Local.noarch 0:1.2300-2.el7 will be installed ---> Package perl-macros.x86_64 4:5.16.3-294.el7_6 will be installed ---> Package perl-threads.x86_64 0:1.87-4.el7 will be installed ---> Package perl-threads-shared.x86_64 0:1.43-6.el7 will be installed --> Running transaction check ---> Package dejavu-sans-fonts.noarch 0:2.33-6.el7 will be installed --> Processing Dependency: dejavu-fonts-common = 2.33-6.el7 for package: dejavu-sans-fonts-2.33-6.el7.noarch ---> Package fontpackages-filesystem.noarch 0:1.44-8.el7 will be installed ---> Package libX11-common.noarch 0:1.6.5-2.el7 will be installed ---> Package libxcb.x86_64 0:1.13-1.el7 will be installed --> Processing Dependency: libXau.so.6()(64bit) for package: libxcb-1.13-1.el7.x86_64 ---> Package perl-Encode.x86_64 0:2.51-7.el7 will be installed ---> Package perl-Pod-Escapes.noarch 1:1.04-294.el7_6 will be installed ---> Package perl-Pod-Usage.noarch 0:1.63-3.el7 will be installed --> Processing Dependency: perl(Pod::Text) >= 3.15 for package: perl-Pod-Usage-1.63-3.el7.noarch --> Processing Dependency: perl-Pod-Perldoc for package: perl-Pod-Usage-1.63-3.el7.noarch ---> Package perl-Text-ParseWords.noarch 0:3.29-4.el7 will be installed --> Running transaction check ---> Package dejavu-fonts-common.noarch 0:2.33-6.el7 will be installed ---> Package libXau.x86_64 0:1.0.8-2.1.el7 will be installed ---> Package perl-Pod-Perldoc.noarch 0:3.20-4.el7 will be installed --> Processing Dependency: perl(parent) for package: perl-Pod-Perldoc-3.20-4.el7.noarch --> Processing Dependency: perl(HTTP::Tiny) for package: perl-Pod-Perldoc-3.20-4.el7.noarch --> Processing Dependency: groff-base for package: perl-Pod-Perldoc-3.20-4.el7.noarch ---> Package perl-podlators.noarch 0:2.5.1-3.el7 will be installed --> Running transaction check ---> Package groff-base.x86_64 0:1.22.2-8.el7 will be installed ---> Package perl-HTTP-Tiny.noarch 0:0.033-3.el7 will be installed ---> Package perl-parent.noarch 1:0.225-244.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: nginx x86_64 1:1.12.2-2.el7 epel 530 k Installing for dependencies: GeoIP x86_64 1.5.0-13.el7 base 1.5 M dejavu-fonts-common noarch 2.33-6.el7 base 64 k dejavu-sans-fonts noarch 2.33-6.el7 base 1.4 M fontconfig x86_64 2.13.0-4.3.el7 base 254 k fontpackages-filesystem noarch 1.44-8.el7 base 9.9 k freetype x86_64 2.8-12.el7_6.1 updates 380 k gd x86_64 2.0.35-26.el7 base 146 k gperftools-libs x86_64 2.6.1-1.el7 base 272 k groff-base x86_64 1.22.2-8.el7 base 942 k libX11 x86_64 1.6.5-2.el7 base 606 k libX11-common noarch 1.6.5-2.el7 base 164 k libXau x86_64 1.0.8-2.1.el7 base 29 k libXpm x86_64 3.5.12-1.el7 base 55 k libjpeg-turbo x86_64 1.2.90-6.el7 base 134 k libpng x86_64 2:1.5.13-7.el7_2 base 213 k libxcb x86_64 1.13-1.el7 base 214 k libxslt x86_64 1.1.28-5.el7 base 242 k make x86_64 1:3.82-23.el7 base 420 k nginx-all-modules noarch 1:1.12.2-2.el7 epel 16 k nginx-filesystem noarch 1:1.12.2-2.el7 epel 17 k nginx-mod-http-geoip x86_64 1:1.12.2-2.el7 epel 23 k nginx-mod-http-image-filter x86_64 1:1.12.2-2.el7 epel 26 k nginx-mod-http-perl x86_64 1:1.12.2-2.el7 epel 36 k nginx-mod-http-xslt-filter x86_64 1:1.12.2-2.el7 epel 26 k nginx-mod-mail x86_64 1:1.12.2-2.el7 epel 54 k nginx-mod-stream x86_64 1:1.12.2-2.el7 epel 76 k openssl x86_64 1:1.0.2k-16.el7_6.1 updates 493 k perl x86_64 4:5.16.3-294.el7_6 updates 8.0 M perl-Carp noarch 1.26-244.el7 base 19 k perl-Encode x86_64 2.51-7.el7 base 1.5 M perl-Exporter noarch 5.68-3.el7 base 28 k perl-File-Path noarch 2.09-2.el7 base 26 k perl-File-Temp noarch 0.23.01-3.el7 base 56 k perl-Filter x86_64 1.49-3.el7 base 76 k perl-Getopt-Long noarch 2.40-3.el7 base 56 k perl-HTTP-Tiny noarch 0.033-3.el7 base 38 k perl-PathTools x86_64 3.40-5.el7 base 82 k perl-Pod-Escapes noarch 1:1.04-294.el7_6 updates 51 k perl-Pod-Perldoc noarch 3.20-4.el7 base 87 k perl-Pod-Simple noarch 1:3.28-4.el7 base 216 k perl-Pod-Usage noarch 1.63-3.el7 base 27 k perl-Scalar-List-Utils x86_64 1.27-248.el7 base 36 k perl-Socket x86_64 2.010-4.el7 base 49 k perl-Storable x86_64 2.45-3.el7 base 77 k perl-Text-ParseWords noarch 3.29-4.el7 base 14 k perl-Time-HiRes x86_64 4:1.9725-3.el7 base 45 k perl-Time-Local noarch 1.2300-2.el7 base 24 k perl-constant noarch 1.27-2.el7 base 19 k perl-libs x86_64 4:5.16.3-294.el7_6 updates 688 k perl-macros x86_64 4:5.16.3-294.el7_6 updates 44 k perl-parent noarch 1:0.225-244.el7 base 12 k perl-podlators noarch 2.5.1-3.el7 base 112 k perl-threads x86_64 1.87-4.el7 base 49 k perl-threads-shared x86_64 1.43-6.el7 base 39 k Updating for dependencies: openssl-libs x86_64 1:1.0.2k-16.el7_6.1 updates 1.2 M Transaction Summary ================================================================================ Install 1 Package (+54 Dependent packages) Upgrade ( 1 Dependent package) Total download size: 21 M Downloading packages: Delta RPMs disabled because /usr/bin/applydeltarpm not installed. warning: /var/cache/yum/x86_64/7/base/packages/fontpackages-filesystem-1.44-8.el7.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY Public key for fontpackages-filesystem-1.44-8.el7.noarch.rpm is not installed Public key for freetype-2.8-12.el7_6.1.x86_64.rpm is not installed warning: /var/cache/yum/x86_64/7/epel/packages/nginx-all-modules-1.12.2-2.el7.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID 352c64e5: NOKEY Public key for nginx-all-modules-1.12.2-2.el7.noarch.rpm is not installed -------------------------------------------------------------------------------- Total 608 kB/s | 21 MB 00:35 Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 Importing GPG key 0xF4A80EB5: Userid : "CentOS-7 Key (CentOS 7 Official Signing Key) <security@centos.org>" Fingerprint: 6341 ab27 53d7 8a78 a7c2 7bb1 24c6 a8a7 f4a8 0eb5 Package : centos-release-7-6.1810.2.el7.centos.x86_64 (@CentOS) From : /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7 Importing GPG key 0x352C64E5: Userid : "Fedora EPEL (7) <epel@fedoraproject.org>" Fingerprint: 91e9 7d7c 4a5e 96f1 7f3e 888f 6a2f aea2 352c 64e5 Package : epel-release-7-11.noarch (installed) From : /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7 Running transaction check Running transaction test Transaction test succeeded Running transaction Warning: RPMDB altered outside of yum. Updating : 1:openssl-libs-1.0.2k-16.el7_6.1.x86_64 1/57 Installing : fontpackages-filesystem-1.44-8.el7.noarch 2/57 Installing : 2:libpng-1.5.13-7.el7_2.x86_64 3/57 Installing : freetype-2.8-12.el7_6.1.x86_64 4/57 Installing : dejavu-fonts-common-2.33-6.el7.noarch 5/57 Installing : dejavu-sans-fonts-2.33-6.el7.noarch 6/57 Installing : fontconfig-2.13.0-4.3.el7.x86_64 7/57 Installing : 1:make-3.82-23.el7.x86_64 8/57 Installing : 1:openssl-1.0.2k-16.el7_6.1.x86_64 9/57 Installing : libX11-common-1.6.5-2.el7.noarch 10/57 Installing : gperftools-libs-2.6.1-1.el7.x86_64 11/57 Installing : libXau-1.0.8-2.1.el7.x86_64 12/57 Installing : libxcb-1.13-1.el7.x86_64 13/57 Installing : libX11-1.6.5-2.el7.x86_64 14/57 Installing : libXpm-3.5.12-1.el7.x86_64 15/57 Installing : libxslt-1.1.28-5.el7.x86_64 16/57 Installing : 1:nginx-filesystem-1.12.2-2.el7.noarch 17/57 Installing : GeoIP-1.5.0-13.el7.x86_64 18/57 Installing : libjpeg-turbo-1.2.90-6.el7.x86_64 19/57 Installing : gd-2.0.35-26.el7.x86_64 20/57 Installing : groff-base-1.22.2-8.el7.x86_64 21/57 Installing : 1:perl-parent-0.225-244.el7.noarch 22/57 Installing : perl-HTTP-Tiny-0.033-3.el7.noarch 23/57 Installing : perl-podlators-2.5.1-3.el7.noarch 24/57 Installing : perl-Pod-Perldoc-3.20-4.el7.noarch 25/57 Installing : perl-Encode-2.51-7.el7.x86_64 26/57 Installing : perl-Text-ParseWords-3.29-4.el7.noarch 27/57 Installing : 1:perl-Pod-Escapes-1.04-294.el7_6.noarch 28/57 Installing : perl-Pod-Usage-1.63-3.el7.noarch 29/57 Installing : 4:perl-libs-5.16.3-294.el7_6.x86_64 30/57 Installing : 4:perl-macros-5.16.3-294.el7_6.x86_64 31/57 Installing : 4:perl-Time-HiRes-1.9725-3.el7.x86_64 32/57 Installing : perl-Exporter-5.68-3.el7.noarch 33/57 Installing : perl-constant-1.27-2.el7.noarch 34/57 Installing : perl-Time-Local-1.2300-2.el7.noarch 35/57 Installing : perl-Carp-1.26-244.el7.noarch 36/57 Installing : perl-Storable-2.45-3.el7.x86_64 37/57 Installing : perl-PathTools-3.40-5.el7.x86_64 38/57 Installing : perl-Scalar-List-Utils-1.27-248.el7.x86_64 39/57 Installing : 1:perl-Pod-Simple-3.28-4.el7.noarch 40/57 Installing : perl-File-Temp-0.23.01-3.el7.noarch 41/57 Installing : perl-File-Path-2.09-2.el7.noarch 42/57 Installing : perl-threads-shared-1.43-6.el7.x86_64 43/57 Installing : perl-threads-1.87-4.el7.x86_64 44/57 Installing : perl-Filter-1.49-3.el7.x86_64 45/57 Installing : perl-Socket-2.010-4.el7.x86_64 46/57 Installing : perl-Getopt-Long-2.40-3.el7.noarch 47/57 Installing : 4:perl-5.16.3-294.el7_6.x86_64 48/57 Installing : 1:nginx-mod-http-xslt-filter-1.12.2-2.el7.x86_64 49/57 Installing : 1:nginx-mod-http-geoip-1.12.2-2.el7.x86_64 50/57 Installing : 1:nginx-mod-stream-1.12.2-2.el7.x86_64 51/57 Installing : 1:nginx-mod-mail-1.12.2-2.el7.x86_64 52/57 Installing : 1:nginx-mod-http-image-filter-1.12.2-2.el7.x86_64 53/57 Installing : 1:nginx-1.12.2-2.el7.x86_64 54/57 Installing : 1:nginx-mod-http-perl-1.12.2-2.el7.x86_64 55/57 Installing : 1:nginx-all-modules-1.12.2-2.el7.noarch 56/57 Cleanup : 1:openssl-libs-1.0.2k-16.el7.x86_64 57/57 Verifying : perl-HTTP-Tiny-0.033-3.el7.noarch 1/57 Verifying : fontconfig-2.13.0-4.3.el7.x86_64 2/57 Verifying : 1:nginx-mod-http-xslt-filter-1.12.2-2.el7.x86_64 3/57 Verifying : perl-threads-shared-1.43-6.el7.x86_64 4/57 Verifying : 4:perl-Time-HiRes-1.9725-3.el7.x86_64 5/57 Verifying : 1:nginx-mod-http-geoip-1.12.2-2.el7.x86_64 6/57 Verifying : groff-base-1.22.2-8.el7.x86_64 7/57 Verifying : perl-Exporter-5.68-3.el7.noarch 8/57 Verifying : perl-constant-1.27-2.el7.noarch 9/57 Verifying : perl-PathTools-3.40-5.el7.x86_64 10/57 Verifying : 2:libpng-1.5.13-7.el7_2.x86_64 11/57 Verifying : dejavu-fonts-common-2.33-6.el7.noarch 12/57 Verifying : fontpackages-filesystem-1.44-8.el7.noarch 13/57 Verifying : 1:nginx-mod-stream-1.12.2-2.el7.x86_64 14/57 Verifying : libjpeg-turbo-1.2.90-6.el7.x86_64 15/57 Verifying : 1:perl-parent-0.225-244.el7.noarch 16/57 Verifying : GeoIP-1.5.0-13.el7.x86_64 17/57 Verifying : 4:perl-libs-5.16.3-294.el7_6.x86_64 18/57 Verifying : perl-Encode-2.51-7.el7.x86_64 19/57 Verifying : perl-File-Temp-0.23.01-3.el7.noarch 20/57 Verifying : 1:perl-Pod-Simple-3.28-4.el7.noarch 21/57 Verifying : perl-Getopt-Long-2.40-3.el7.noarch 22/57 Verifying : 1:nginx-all-modules-1.12.2-2.el7.noarch 23/57 Verifying : libxcb-1.13-1.el7.x86_64 24/57 Verifying : perl-Time-Local-1.2300-2.el7.noarch 25/57 Verifying : 4:perl-macros-5.16.3-294.el7_6.x86_64 26/57 Verifying : 4:perl-5.16.3-294.el7_6.x86_64 27/57 Verifying : libXpm-3.5.12-1.el7.x86_64 28/57 Verifying : perl-Text-ParseWords-3.29-4.el7.noarch 29/57 Verifying : 1:openssl-1.0.2k-16.el7_6.1.x86_64 30/57 Verifying : 1:nginx-filesystem-1.12.2-2.el7.noarch 31/57 Verifying : perl-Carp-1.26-244.el7.noarch 32/57 Verifying : libxslt-1.1.28-5.el7.x86_64 33/57 Verifying : libX11-1.6.5-2.el7.x86_64 34/57 Verifying : perl-Storable-2.45-3.el7.x86_64 35/57 Verifying : dejavu-sans-fonts-2.33-6.el7.noarch 36/57 Verifying : 1:nginx-mod-mail-1.12.2-2.el7.x86_64 37/57 Verifying : perl-Scalar-List-Utils-1.27-248.el7.x86_64 38/57 Verifying : gd-2.0.35-26.el7.x86_64 39/57 Verifying : 1:perl-Pod-Escapes-1.04-294.el7_6.noarch 40/57 Verifying : 1:nginx-mod-http-image-filter-1.12.2-2.el7.x86_64 41/57 Verifying : perl-Pod-Usage-1.63-3.el7.noarch 42/57 Verifying : 1:openssl-libs-1.0.2k-16.el7_6.1.x86_64 43/57 Verifying : 1:nginx-1.12.2-2.el7.x86_64 44/57 Verifying : perl-Pod-Perldoc-3.20-4.el7.noarch 45/57 Verifying : perl-podlators-2.5.1-3.el7.noarch 46/57 Verifying : libXau-1.0.8-2.1.el7.x86_64 47/57 Verifying : perl-File-Path-2.09-2.el7.noarch 48/57 Verifying : perl-threads-1.87-4.el7.x86_64 49/57 Verifying : gperftools-libs-2.6.1-1.el7.x86_64 50/57 Verifying : libX11-common-1.6.5-2.el7.noarch 51/57 Verifying : perl-Filter-1.49-3.el7.x86_64 52/57 Verifying : freetype-2.8-12.el7_6.1.x86_64 53/57 Verifying : 1:nginx-mod-http-perl-1.12.2-2.el7.x86_64 54/57 Verifying : perl-Socket-2.010-4.el7.x86_64 55/57 Verifying : 1:make-3.82-23.el7.x86_64 56/57 Verifying : 1:openssl-libs-1.0.2k-16.el7.x86_64 57/57 Installed: nginx.x86_64 1:1.12.2-2.el7 Dependency Installed: GeoIP.x86_64 0:1.5.0-13.el7 dejavu-fonts-common.noarch 0:2.33-6.el7 dejavu-sans-fonts.noarch 0:2.33-6.el7 fontconfig.x86_64 0:2.13.0-4.3.el7 fontpackages-filesystem.noarch 0:1.44-8.el7 freetype.x86_64 0:2.8-12.el7_6.1 gd.x86_64 0:2.0.35-26.el7 gperftools-libs.x86_64 0:2.6.1-1.el7 groff-base.x86_64 0:1.22.2-8.el7 libX11.x86_64 0:1.6.5-2.el7 libX11-common.noarch 0:1.6.5-2.el7 libXau.x86_64 0:1.0.8-2.1.el7 libXpm.x86_64 0:3.5.12-1.el7 libjpeg-turbo.x86_64 0:1.2.90-6.el7 libpng.x86_64 2:1.5.13-7.el7_2 libxcb.x86_64 0:1.13-1.el7 libxslt.x86_64 0:1.1.28-5.el7 make.x86_64 1:3.82-23.el7 nginx-all-modules.noarch 1:1.12.2-2.el7 nginx-filesystem.noarch 1:1.12.2-2.el7 nginx-mod-http-geoip.x86_64 1:1.12.2-2.el7 nginx-mod-http-image-filter.x86_64 1:1.12.2-2.el7 nginx-mod-http-perl.x86_64 1:1.12.2-2.el7 nginx-mod-http-xslt-filter.x86_64 1:1.12.2-2.el7 nginx-mod-mail.x86_64 1:1.12.2-2.el7 nginx-mod-stream.x86_64 1:1.12.2-2.el7 openssl.x86_64 1:1.0.2k-16.el7_6.1 perl.x86_64 4:5.16.3-294.el7_6 perl-Carp.noarch 0:1.26-244.el7 perl-Encode.x86_64 0:2.51-7.el7 perl-Exporter.noarch 0:5.68-3.el7 perl-File-Path.noarch 0:2.09-2.el7 perl-File-Temp.noarch 0:0.23.01-3.el7 perl-Filter.x86_64 0:1.49-3.el7 perl-Getopt-Long.noarch 0:2.40-3.el7 perl-HTTP-Tiny.noarch 0:0.033-3.el7 perl-PathTools.x86_64 0:3.40-5.el7 perl-Pod-Escapes.noarch 1:1.04-294.el7_6 perl-Pod-Perldoc.noarch 0:3.20-4.el7 perl-Pod-Simple.noarch 1:3.28-4.el7 perl-Pod-Usage.noarch 0:1.63-3.el7 perl-Scalar-List-Utils.x86_64 0:1.27-248.el7 perl-Socket.x86_64 0:2.010-4.el7 perl-Storable.x86_64 0:2.45-3.el7 perl-Text-ParseWords.noarch 0:3.29-4.el7 perl-Time-HiRes.x86_64 4:1.9725-3.el7 perl-Time-Local.noarch 0:1.2300-2.el7 perl-constant.noarch 0:1.27-2.el7 perl-libs.x86_64 4:5.16.3-294.el7_6 perl-macros.x86_64 4:5.16.3-294.el7_6 perl-parent.noarch 1:0.225-244.el7 perl-podlators.noarch 0:2.5.1-3.el7 perl-threads.x86_64 0:1.87-4.el7 perl-threads-shared.x86_64 0:1.43-6.el7 Dependency Updated: openssl-libs.x86_64 1:1.0.2k-16.el7_6.1 Complete! Loaded plugins: fastestmirror, ovl Cleaning repos: base epel extras updates Cleaning up list of fastest mirrors Removing intermediate container 3e228aab6696 ---> d31beb8cce1e Step 5/8 : RUN echo "daemon off;" >> /etc/nginx/nginx.conf ---> Running in e2770ee72af0 Removing intermediate container e2770ee72af0 ---> 56382e656884 Step 6/8 : ADD index.html /usr/share/nginx/html/index.html ---> 9a268246ca18 Step 7/8 : EXPOSE 80 ---> Running in 92412b2bb046 Removing intermediate container 92412b2bb046 ---> 05ce68ba1519 Step 8/8 : CMD ["nginx"] ---> Running in fa9037b49675 Removing intermediate container fa9037b49675 ---> 5aee9f4c1ada Successfully built 5aee9f4c1ada Successfully tagged mynginx:v2 [root@localhost nginx]# docker image Usage: docker image COMMAND Manage images Commands: build Build an image from a Dockerfile history Show the history of an image import Import the contents from a tarball to create a filesystem image inspect Display detailed information on one or more images load Load an image from a tar archive or STDIN ls List images prune Remove unused images pull Pull an image or a repository from a registry push Push an image or a repository to a registry rm Remove one or more images save Save one or more images to a tar archive (streamed to STDOUT by default) tag Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE Run 'docker image COMMAND --help' for more information on a command. [root@localhost nginx]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE mynginx v2 5aee9f4c1ada 14 seconds ago 307MB centos latest 9f38484d220f 10 days ago 202MB nginx latest 881bd08c0b08 2 weeks ago 109MB [root@localhost nginx]#
啓動鏡像
[root@localhost nginx]# cat index.html <html> <body> <h1>首頁！！！！</h1> </body> </html> [root@localhost nginx]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE mynginx v2 5aee9f4c1ada 4 minutes ago 307MB centos latest 9f38484d220f 10 days ago 202MB nginx latest 881bd08c0b08 2 weeks ago 109MB [root@localhost nginx]# docker run --name mynginxv2 -d -p 81:80 mynginx:v2 nginx 8e269403c1b4181dd187eb20c74eb465f5f165ce0bfbc9b444d57164b1621e24 [root@localhost nginx]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 8e269403c1b4 mynginx:v2 "nginx" 4 seconds ago Up 3 seconds 0.0.0.0:81->80/tcp mynginxv2 [root@localhost nginx]# ip a s 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:0c:29:86:32:27 brd ff:ff:ff:ff:ff:ff inet 192.168.226.159/24 brd 192.168.226.255 scope global dynamic ens33 valid_lft 1636sec preferred_lft 1636sec inet6 fe80::6f1c:2b48:af8b:a03a/64 scope link valid_lft forever preferred_lft forever 3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN qlen 1000 link/ether 52:54:00:31:bf:a8 brd ff:ff:ff:ff:ff:ff inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0 valid_lft forever preferred_lft forever 4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 1000 link/ether 52:54:00:31:bf:a8 brd ff:ff:ff:ff:ff:ff 5: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP link/ether 02:42:b4:4c:77:45 brd ff:ff:ff:ff:ff:ff inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0 valid_lft forever preferred_lft forever inet6 fe80::42:b4ff:fe4c:7745/64 scope link valid_lft forever preferred_lft forever 79: veth3778ee4@if78: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP link/ether d2:b8:51:47:0d:1d brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet6 fe80::d0b8:51ff:fe47:d1d/64 scope link valid_lft forever preferred_lft forever [root@localhost nginx]# curl 192.168.226.159:81 <html> <body> <h1>首頁！！！！</h1> </body> </html> [root@localhost nginx]# docker run --name mynginxv2 -d -p 81:80 mynginx:v2 nginx
5、docker file生產實踐
docker file go live
1.目錄環境準備
[root@localhost docker_image]# ls apps runtime system [root@localhost docker_image]# tree . ├── apps │ └── work_order_api ├── runtime │ ├── java │ ├── php │ └── python └── system ├── centos └── centos-ssh
在架構設計裏面有個分層設計的理念，咱們也可把生產環境分爲：系統層、運行環境層、業務層，這也迎合了docker鏡像的分層，
Linux系統： centos、Ubuntu....
運行環境： Java 、Python 、PHP.....
App：API、WebAPP、BackGroundManagement ...
Docker file最大的亮點在於FROM，有了它就能夠基於不一樣的鏡像，衍生出多種鏡像，就和搭積木相似，分好層 能夠靈活組裝就好。
2.系統環境層docker file （centos7）
下載epel.repo源文件
[root@localhost centos]# pwd /docker_image/system/centos [root@localhost centos]# wget -O ./epel.repo http://mirrors.aliyun.com/repo/epel-7.repo --2019-03-26 09:34:20-- http://mirrors.aliyun.com/repo/epel-7.repo Resolving mirrors.aliyun.com (mirrors.aliyun.com)... 175.6.29.211, 175.6.29.218, 175.6.29.213, ... Connecting to mirrors.aliyun.com (mirrors.aliyun.com)|175.6.29.211|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 664 [application/octet-stream] Saving to: ‘./epel.repo’ 100%[==================================================================================================>] 664 --.-K/s in 0s 2019-03-26 09:34:20 (138 MB/s) - ‘./epel.repo’ saved [664/664] [root@localhost centos]# ls epel.repo
FROM centos MAINTAINER zhanggen ADD epel.repo /etc/yum.repos.d/ run yum install -y wget mysql-devel supervisor git redis tree net-toos sudo psmisc && yum clean all
[root@localhost centos]# ls Dockerfile epel.repo [root@localhost centos]# docker build -t zhanggen/centos:v1 .
3.開發環境層docker file （Python3.6.1）
[root@localhost python]# pwd /docker_image/runtime/python [root@localhost python]# ls Dockerfile Python-3.6.1.tgz [root@localhost python]#
FROM zhanggen/centos:v1 MAINTAINER Gen.Zhang RUN yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel gcc automake autoconf libtool make db4-devel libpcap-devel xz-devel RUN yum clean all ADD Python-3.6.1.tgz /python_packages/ RUN mkdir -p /zhanggen/python3.6.1 RUN cd /python_packages/Python-3.6.1 && ./configure --prefix=/zhanggen/python3.6.1 && make && make install RUN echo -e "PATH=$PATH:$HOME/bin:/zhanggen/python3.6.1/bin \n export PATH" > /etc/profile.d/python3.6.1.sh && source /etc/profile.d/python3.6.1.sh
構建python開發環境鏡像
[root@localhost runtime]# cd python/ [root@localhost python]# ls Dockerfile Python-3.6.1.tgz [root@localhost python]# docker build -t zhanggen/python3.6.1:v1 . Sending build context to Docker daemon 22.54MB Step 1/8 : FROM zhanggen/centos:v1 ---> 9c10a3b17a66 Step 2/8 : MAINTAINER Gen.Zhang ---> Using cache ---> 4c630636d1f9 Step 3/8 : RUN yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel gcc automake autoconf libtool make db4-devel libpcap-devel xz-devel ---> Using cache ---> ff12b7d7dbd3 Step 4/8 : RUN yum clean all ---> Using cache ---> 32c615445b0a Step 5/8 : ADD Python-3.6.1.tgz /python_packages/ ---> Using cache ---> ac70242e584b Step 6/8 : RUN mkdir -p /zhanggen/python3.6.1 ---> Using cache ---> 426627a6cb1f Step 7/8 : RUN cd /python_packages/Python-3.6.1 && ./configure --prefix=/zhanggen/python3.6.1 && make && make install ---> Using cache ---> d15daa242a06 Step 8/8 : RUN echo -e "PATH=$PATH:$HOME/bin:/zhanggen/python3.6.1/bin \n export PATH" > /etc/profile.d/python3.6.1.sh && source /etc/profile.d/python3.6.1.sh ---> Using cache ---> 20e32f2fde08 Successfully built 20e32f2fde08 Successfully tagged zhanggen/python3.6.1:v1 [root@localhost python]# docker build -t zhanggen/python3.6.1:v1 . Sending build context to Docker daemon 22.54MB Step 1/8 : FROM zhanggen/centos:v1 ---> 9c10a3b17a66 Step 2/8 : MAINTAINER Gen.Zhang ---> Using cache ---> 4c630636d1f9 Step 3/8 : RUN yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel gcc automake autoconf libtool make db4-devel libpcap-devel xz-devel ---> Using cache ---> ff12b7d7dbd3 Step 4/8 : RUN yum clean all ---> Using cache ---> 32c615445b0a Step 5/8 : ADD Python-3.6.1.tgz /python_packages/ ---> Using cache ---> ac70242e584b Step 6/8 : RUN mkdir -p /zhanggen/python3.6.1 ---> Using cache ---> 426627a6cb1f Step 7/8 : RUN cd /python_packages/Python-3.6.1 && ./configure --prefix=/zhanggen/python3.6.1 && make && make install ---> Using cache ---> d15daa242a06 Step 8/8 : RUN echo -e "PATH=$PATH:$HOME/bin:/zhanggen/python3.6.1/bin \n export PATH" > /etc/profile.d/python3.6.1.sh && source /etc/profile.d/python3.6.1.sh ---> Using cache ---> 20e32f2fde08 Successfully built 20e32f2fde08 Successfully tagged zhanggen/python3.6.1:v1 [root@localhost python]# pwd /docker_image/runtime/python
四、APP層 docker file（Django web app）
Docker容器只容許在前臺 運行1個進程，咱們如何破解？
Supervisor是Python開發的進程管理工具，能夠同時開啓、重啓、關閉多個進程，能夠啓動1個Supervisor進程使用Supercisor啓動、管理N個進程；
我發現Supervisor不只能夠統一管理進程，還能夠規範進程的日誌路徑，規範了日誌路徑以後，就能夠很方便得找得這些日誌，進行數據分析；
[root@localhost web_application]# pwd /docker_image/apps/web_application [root@localhost web_application]# ls django_app Dockerfile requirements.txt supervisord.conf supervisor.ini [root@localhost web_application]#
構建web app鏡像所須要的文件
APP項目---本身寫
ADD django_app/ /root/django_app/ ADD requirements.txt /root/django_app/ ADD supervisord.conf /etc/supervisord.conf ADD supervisor.ini /etc/supervisord.d/ RUN /zhanggen/python3.6.1/bin/pip3 install -r /root/django_app/requirements.txt -i http://pypi.douban.com/simple --trusted-host pypi.douban.com EXPOSE 22 8008 CMD ["/usr/bin/supervisord","-c","/etc/supervisord.conf"]
Django==1.11.4
nodaemon=true ; (start in foreground if true;default false)
配置supervisor須要啓動的啓動的 程序
ps:必定記得讓supervisord進程 在前臺運行（修改配置中件 nodaemon=true）
[program:django_project] command=/zhanggen/python3.6.1/bin/python3 /root/django_app/manage.py runserver 0.0.0.0:8008 process_name=%(program_name)s autostart=true user=root stdout_logfile=/tmp/app.log stderr_logfile=/tmp/app.error [program:sshd] command=/usr/sbin/sshd -D process_name=%(program_name)s autostart=true user=root stdout_logfile=/tmp/sshd.log stderr_logfile=/tmp/sshd.error
構建 web app鏡像
Successfully built 73fbd9076308 Successfully tagged zhanggen/django_app:v1 [root@localhost web_application]# pwd /docker_image/apps/web_application [root@localhost web_application]# docker build -t zhanggen/django_app:v1 .
啓動web app
[root@localhost web_application]# docker run --name my_django_app -d -p 8008:8008 -p 8022:22 zhanggen/django_app:v1 185c311d6a951e33fa01d64a332127cf9ad6d45b0ee60d018ab25be68c0a86bf [root@localhost web_application]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 185c311d6a95 zhanggen/django_app:v1 "/usr/bin/supervisor…" 7 seconds ago Up 5 seconds 0.0.0.0:8008->8008/tcp, 0.0.0.0:8022->22/tcp my_django_app [root@localhost web_application]#
最後的最後
[root@localhost web_application]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE zhanggen/django_app v1 a25dd5479dd9 8 minutes ago 905MB zhanggen/python3.6.1 v1 20e32f2fde08 19 hours ago 882MB zhanggen/centos v1 9c10a3b17a66 20 hours ago 300MB [root@localhost web_application]# docker run --name my_django_app -d -p 8008:8008 -p 8022:22 zhanggen/django_app:v1
6、Docker倉庫（Docker Registry）
docker鏡像作好了，這些鏡像怎麼分享給其餘同事，其餘同事的鏡像 How to share with me？
因而私有Docker Hub-----Harbor閃亮登場了！
咱們能夠把這些鏡像 push / pull 到Docker倉庫裏面，經過Docker倉庫 使鏡像 得以分享、傳播；
2.Docker 添加--insecure-registry信任關係
ExecStart=/usr/bin/dockerd --insecure-registry=192.168.226.159:80
3.首次使用Harbor須要先登陸作一下認證 （Authenticating）
[root@localhost /]# docker login 192.168.226.159:80 Authenticating with existing credentials... WARNING! Your password will be stored unencrypted in /root/.docker/config.json. Configure a credential helper to remove this warning. See https://docs.docker.com/engine/reference/commandline/login/#credentials-store Login Succeeded
4.在提交到Harbor以前 要先對本地鏡像進行 docker tag
[root@localhost /]# docker tag 192.168.226.159/zhanggen/django_app:v1 192.168.226.159:80/zhanggen/django_app:v1 [root@localhost /]# docker push 192.168.226.159:80/zhanggen/django_app:v1 The push refers to repository [192.168.226.159:80/zhanggen/django_app] 1adfc5932576: Pushed f35015fe99dc: Pushed 130d88c10146: Pushed af1537967ae6: Pushed 8bc7239a5750: Pushed 4044728999b8: Pushed 7393a01b80a0: Pushed 8682a21900da: Pushed 4b12cdc82a32: Pushed 325cddbb1805: Pushed 5e3f3498e333: Pushed 9b0549f1a2e2: Pushed 5d14ce4c4502: Pushed d7180aa9852e: Pushed d69483a6face: Mounted from zhanggen/mycentos v1: digest: sha256:9b4aaeb6d37466a92d3705b68b20c5bf27db1a21ef75456dd2433822b0bf5b60 size: 3457
5.docker push ---->Harbor倉庫
[root@localhost harbor]# docker login http://192.168.226.159:80 Username: admin Password: WARNING! Your password will be stored unencrypted in /root/.docker/config.json. Configure a credential helper to remove this warning. See https://docs.docker.com/engine/reference/commandline/login/#credentials-store Login Succeeded [root@localhost harbor]# docker push 192.168.226.159:80/zhanggen/mycentos:v1 The push refers to repository [192.168.226.159:80/zhanggen/mycentos] d69483a6face: Pushed v1: digest: sha256:ca58fe458b8d94bc6e3072f1cfbd334855858e05e1fd633aa07cf7f82b048e66 size: 529 [root@localhost harbor]#
6.docker pull 本地 <--------Harbor倉庫
[root@localhost /]# docker rmi 192.168.226.159:80/zhanggen/mycentos:v1 Untagged: 192.168.226.159:80/zhanggen/mycentos:v1 Untagged: 192.168.226.159:80/zhanggen/mycentos@sha256:ca58fe458b8d94bc6e3072f1cfbd334855858e05e1fd633aa07cf7f82b048e66 [root@localhost /]# docker pull 192.168.226.159:80/zhanggen/mycentos:v1 v1: Pulling from zhanggen/mycentos Digest: sha256:ca58fe458b8d94bc6e3072f1cfbd334855858e05e1fd633aa07cf7f82b048e66 Status: Downloaded newer image for 192.168.226.159:80/zhanggen/mycentos:v1 [root@localhost /]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE 192.168.226.159/zhanggen/django_app v1 a25dd5479dd9 29 hours ago 905MB 192.168.226.159:80/zhanggen/django_app v1 a25dd5479dd9 29 hours ago 905MB zhanggen/django_app v1 a25dd5479dd9 29 hours ago 905MB zhanggen/python3.6.1 v1 20e32f2fde08 2 days ago 882MB zhanggen/centos v1 9c10a3b17a66 2 days ago 300MB 192.168.226.159/zhanggen/mycentos v1 9f38484d220f 13 days ago 202MB 192.168.226.159:80/zhanggen/mycentos v1 9f38484d220f 13 days ago 202MB centos latest 9f38484d220f 13 days ago 202MB goharbor/chartmuseum-photon v0.8.1-v1.7.4 7e2272c02339 3 weeks ago 113MB goharbor/harbor-migrator v1.7.4 968c31d07d2f 3 weeks ago 678MB goharbor/redis-photon v1.7.4 611d1ead0a28 3 weeks ago 99.7MB goharbor/clair-photon v2.0.7-v1.7.4 01090529ab14 3 weeks ago 165MB goharbor/notary-server-photon v0.6.1-v1.7.4 737518b1b943 3 weeks ago 135MB goharbor/notary-signer-photon v0.6.1-v1.7.4 495dc3326120 3 weeks ago 132MB goharbor/harbor-registryctl v1.7.4 723aed7bbf8d 3 weeks ago 102MB goharbor/registry-photon v2.6.2-v1.7.4 f4743bd7b0d9 3 weeks ago 86.7MB goharbor/nginx-photon v1.7.4 dda34e6afafe 3 weeks ago 35.9MB goharbor/harbor-log v1.7.4 bf4916eef530 3 weeks ago 81.4MB goharbor/harbor-jobservice v1.7.4 1b6a0445ae9c 3 weeks ago 84.1MB goharbor/harbor-core v1.7.4 e603b8750d26 3 weeks ago 95.6MB goharbor/harbor-portal v1.7.4 2ca1d845cafa 3 weeks ago 40.6MB goharbor/harbor-adminserver v1.7.4 5706c65d65dc 3 weeks ago 72.3MB goharbor/harbor-db v1.7.4 08d163f732f3 3 weeks ago 136MB [root@localhost /]#
7.Harbor的 後臺管理頁面
默認登陸密碼：Harbor12345
七.docker實踐總結
雖然結果只是build了3個鏡像，可是我發現docker 的優點在於它能夠經過鏡像的方式 把Linux系統、開發環境、代碼 進行了分層， 咱們能夠把這些鏡像 想象成一個個的積木，有了這些小積木，咱們就能夠在 實體機、甚至虛擬機裏面 靈活、搭建出 各式各樣的房子，分給不一樣需求的人，並且構建速度 快，構建的房子還能夠輕易的搬到其餘地方；
docker是1種能夠 靈活、快速得 構建出 多種不一樣得 開發、測試 環境的容器技術，Buddy.... 若是你的公司須要構建大量、不一樣的系統環境用docker 吧！
若是你的代碼須要在不少地方快速運行起來用docker吧！
Build-----> Ship---->Run
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