docker映象的匯入和匯出
阿新 • • 發佈:2018-12-26
gitlab 的docker使用
gitlab docker
啟動命令
docker run -d -p 3000:80 twang2218/gitlab-ce-zh:9.0.3
docker run -d -p 8080:80 gitlab/gitlab-ce:latest
將容器修改提交到映象
# 進入容器內部
[[email protected]#localhost docker]# docker run -ti ubuntu:14.04 /bin/bash
[email protected]812a997f614a:/# id
uid=0(root) gid=0 (root) groups=0(root)
#做了一些修改
[email protected]812a997f614a:/# echo update>update.txt
[email protected]812a997f614a:/# exit
exit
[[email protected]#localhost docker]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
812 a997f614a ubuntu:14.04 "/bin/bash" 7 minutes ago Exited (0) 22 seconds ago zealous_euler
69304dea46c7 gitlab/gitlab-ce:latest "/assets/wrapper" About an hour ago Exited (127) 44 minutes ago competent_minsky
67 ba866e21b0 gitlab/gitlab-ce:latest "/assets/wrapper" 2 hours ago Exited (137) About an hour ago hungry_hoover
2a3d08a0a2ff twang2218/gitlab-ce-zh:9.0.3 "/assets/wrapper" 2 hours ago Exited (137) About an hour ago nervous_wozniak
6db49540be99 twang2218/gitlab-ce-zh:9.0.3 "/assets/wrapper" 2 hours ago Exited (255) 2 hours ago 22/tcp, 443/tcp, 0.0.0.0:3000->80/tcp romantic_elion
b08a6d6ed716 gitlab/gitlab-ce:latest "/assets/wrapper" 2 hours ago Exited (255) 2 hours ago 22/tcp, 443/tcp, 0.0.0.0:8080->80/tcp competent_brahmagupta
33fd0b1ebd27 gitlab/gitlab-ce:latest "/assets/wrapper" 2 hours ago Exited (127) 2 hours ago loving_brattain
6f53620a930c twang2218/gitlab-ce-zh:9.0.3 "/assets/wrapper" 3 hours ago Exited (127) 2 hours ago brave_galileo
88df78f77c4e ubuntu:14.04 "sleep 360" 4 days ago Exited (137) 4 days ago testcopy
81a879a36bd3 wordpress "docker-entrypoint..." 4 days ago Exited (0) 4 days ago wordpress
a57a3cc492b7 mysql "docker-entrypoint..." 4 days ago Exited (0) 4 days ago mysqlwp
# 將修改多的映象儲存成一個新的
[[email protected]#localhost docker]# docker commit 812a997f614a ubuntu:update
sha256:317f102584605694da424bc96764559a1ccfda13943353f4cbdfd89c96515e6b
[[email protected]#localhost docker]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
ubuntu update 317f10258460 5 seconds ago 188 MB
twang2218/gitlab-ce-zh 9.0.3 36172b5fefab 44 hours ago 1.19 GB
gitlab/gitlab-ce latest 5eff2e44957c 2 days ago 1.11 GB
mysql latest 9546ca122d3a 8 days ago 407 MB
wordpress latest 4ad41adc2794 2 weeks ago 401 MB
ubuntu 14.04 7c09e61e9035 5 weeks ago 188 MB
daocloud.io/library/nginx 1.7.1 e3e043d3ed2f 2 years ago 499 MB
# 檢視修改多的映象和原來映象之間的差異
[[email protected]#localhost docker]# docker diff 812a997f614a
C /var
C /var/cache
C /var/cache/apt
D /var/cache/apt/srcpkgcache.bin
D /var/cache/apt/pkgcache.bin
C /var/lib
C /var/lib/apt
C /var/lib/apt/lists
A /var/lib/apt/lists/lock
A /var/lib/apt/lists/partial
A /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_trusty-updates_InRelease
A /update.txt
C /root
A /root/.bash_history
[[email protected]#localhost docker]#
映象的匯入和匯出
export 和improt
[[email protected]#localhost docker]# docker run -ti ubuntu:update /bin/bash
[email protected]:/# ls
bin boot dev etc home lib lib64 media mnt opt proc root run sbin srv sys tmp update.txt usr var
[[email protected]#localhost docker]#
[[email protected]#localhost docker]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
cbe3cb7799ed ubuntu:update "/bin/bash" 47 seconds ago Exited (1) 6 seconds ago adoring_kare
812a997f614a ubuntu:14.04 "/bin/bash" 16 minutes ago Exited (0) 8 minutes ago zealous_euler
69304dea46c7 gitlab/gitlab-ce:latest "/assets/wrapper" 2 hours ago Exited (127) 53 minutes ago competent_minsky
67ba866e21b0 gitlab/gitlab-ce:latest "/assets/wrapper" 2 hours ago Exited (137) 2 hours ago hungry_hoover
2a3d08a0a2ff twang2218/gitlab-ce-zh:9.0.3 "/assets/wrapper" 2 hours ago Exited (137) 2 hours ago nervous_wozniak
6db49540be99 twang2218/gitlab-ce-zh:9.0.3 "/assets/wrapper" 2 hours ago Exited (255) 2 hours ago 22/tcp, 443/tcp, 0.0.0.0:3000->80/tcp romantic_elion
b08a6d6ed716 gitlab/gitlab-ce:latest "/assets/wrapper" 2 hours ago Exited (255) 2 hours ago 22/tcp, 443/tcp, 0.0.0.0:8080->80/tcp competent_brahmagupta
33fd0b1ebd27 gitlab/gitlab-ce:latest "/assets/wrapper" 3 hours ago Exited (127) 2 hours ago loving_brattain
6f53620a930c twang2218/gitlab-ce-zh:9.0.3 "/assets/wrapper" 3 hours ago Exited (127) 2 hours ago brave_galileo
88df78f77c4e ubuntu:14.04 "sleep 360" 4 days ago Exited (137) 4 days ago testcopy
81a879a36bd3 wordpress "docker-entrypoint..." 4 days ago Exited (0) 4 days ago wordpress
a57a3cc492b7 mysql "docker-entrypoint..." 4 days ago Exited (0) 4 days ago mysqlwp
# 將映象匯出到檔案
[[email protected]#localhost docker]# docker export cbe3cb7799ed > update.tar
# 建立一個新靜像從基於匯出的檔案
[[email protected]#localhost /]# docker import - update < update.tar
sha256:fd00d520a43eb5dc6cca8717fe0ca04cfdc53b02cad2fb5b50d877b8e6d6c3bc
[[email protected]#localhost /]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
update latest fd00d520a43e 13 seconds ago 165 MB
ubuntu update 317f10258460 11 minutes ago 188 MB
twang2218/gitlab-ce-zh 9.0.3 36172b5fefab 44 hours ago 1.19 GB
gitlab/gitlab-ce latest 5eff2e44957c 2 days ago 1.11 GB
mysql latest 9546ca122d3a 8 days ago 407 MB
wordpress latest 4ad41adc2794 2 weeks ago 401 MB
ubuntu 14.04 7c09e61e9035 5 weeks ago 188 MB
daocloud.io/library/nginx 1.7.1 e3e043d3ed2f 2 years ago 499 MB
[[email protected]#localhost /]#
save 和load
(像當與映象的備份和恢復)
# update是一個已經存在的映象
[[email protected]#localhost /]# docker save -o update1.tar update
[[email protected]#localhost /]# ls
bin boot dev etc home lib lib64 media mnt opt proc root run sbin srv sys tmp update1.tar update.tar usr var
[[email protected]#localhost /]# du -sh update1.tar
166M update1.tar
# 刪除update映象
[[email protected]#localhost /]# docker rmi update
Untagged: update:latest
Deleted: sha256:fd00d520a43eb5dc6cca8717fe0ca04cfdc53b02cad2fb5b50d877b8e6d6c3bc
Deleted: sha256:14cc8cd7b783152682835346e5fe90860a9feeb684866688692285319d4e97ad
[[email protected]#localhost /]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
ubuntu update 317f10258460 16 minutes ago 188 MB
twang2218/gitlab-ce-zh 9.0.3 36172b5fefab 44 hours ago 1.19 GB
gitlab/gitlab-ce latest 5eff2e44957c 2 days ago 1.11 GB
mysql latest 9546ca122d3a 8 days ago 407 MB
wordpress latest 4ad41adc2794 2 weeks ago 401 MB
ubuntu 14.04 7c09e61e9035 5 weeks ago 188 MB
daocloud.io/library/nginx 1.7.1 e3e043d3ed2f 2 years ago 499 MB
#匯入映象
[[email protected]#localhost /]# docker load < update1.tar
14cc8cd7b783: Loading layer [==================================================>] 173.8 MB/173.8 MB
Loaded image: update:latest
[[email protected]#localhost /]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
update latest fd00d520a43e 6 minutes ago 165 MB
ubuntu update 317f10258460 17 minutes ago 188 MB
twang2218/gitlab-ce-zh 9.0.3 36172b5fefab 44 hours ago 1.19 GB
gitlab/gitlab-ce latest 5eff2e44957c 2 days ago 1.11 GB
mysql latest 9546ca122d3a 8 days ago 407 MB
wordpress latest 4ad41adc2794 2 weeks ago 401 MB
ubuntu 14.04 7c09e61e9035 5 weeks ago 188 MB
daocloud.io/library/nginx 1.7.1 e3e043d3ed2f 2 years ago 499 MB
[[email protected]#localhost /]#
Dockerfile
[[email protected]#localhost ~]# mkdir docker_file
[[email protected]#localhost ~]# cd docker_file/
[[email protected]#localhost docker_file]# vi Dockerfile
[[email protected]#localhost docker_file]# cat Dockerfile
FROM ubuntu:14.04
ENTRYPOINT ["/bin/echo"]
[[email protected]#localhost docker_file]# docker build .
Sending build context to Docker daemon 2.048 kB
Step 1/2 : FROM ubuntu:14.04
---> 7c09e61e9035
Step 2/2 : ENTRYPOINT /bin/echo
---> Running in d53f31b93355
---> 26dd06d2e5a5
Removing intermediate container d53f31b93355
Successfully built 26dd06d2e5a5
#執行映象
[[email protected]#localhost docker_file]# docker run 26dd06d2e5a5
#加入一個引數
[[email protected]#localhost docker_file]# docker run 26dd06d2e5a5 hello world
hello world
[[email protected]#localhost docker_file]# vi Dockerfile
[[email protected]#localhost docker_file]# docker run 26dd06d2e5a5 hello world
hello world
#
[[email protected]#localhost docker_file]# cat Dockerfile
FROM ubuntu:14.04
#ENTRYPOINT ["/bin/echo","Hi world!"]
CMD ["/bin/echo","Hi world!"]
[[email protected]#localhost docker_file]# docker build .
[[email protected]#localhost docker_file]# docker run 12458a717ced
Hi world!
[[email protected]#localhost docker_file]# docker run 12458a717ced /bin/date
Sat Apr 8 12:08:14 UTC 2017
構建的時候打個標籤
[[email protected]#localhost docker_file]# docker build -t yang:01 .
Sending build context to Docker daemon 3.584 kB
Step 1/2 : FROM ubuntu:14.04
---> 7c09e61e9035
Step 2/2 : CMD /bin/echo Hi world!
---> Running in 94e510f085d7
---> 6b33c8a6a32f
Removing intermediate container 94e510f085d7
Successfully built 6b33c8a6a32f
[[email protected]#localhost docker_file]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
yang 01 6b33c8a6a32f 5 seconds ago 188 MB
update latest fd00d520a43e 29 minutes ago 165 MB
ubuntu update 317f10258460 41 minutes ago 188 MB
twang2218/gitlab-ce-zh 9.0.3 36172b5fefab 44 hours ago 1.19 GB
gitlab/gitlab-ce latest 5eff2e44957c 2 days ago 1.11 GB
mysql latest 9546ca122d3a 8 days ago 407 MB
wordpress latest 4ad41adc2794 2 weeks ago 401 MB
ubuntu 14.04 7c09e61e9035 5 weeks ago 188 MB
daocloud.io/library/nginx 1.7.1 e3e043d3ed2f 2 years ago 499 MB
[[email protected]#localhost docker_file]#
構建例項
將flask應用 打包的映象中
編寫python程式 hellp.py
#!/usr/bin/env python
from flask import Flask
app = Flask(__name__)
@app.route('/hi')
def hello_world():
return 'Hello World!'
if __name__ == '__main__':
app.run(host='0.0.0.0', port=5000)
編寫Dockerfile
FROM ubuntu:14.04
RUN apt-get update
RUN apt-get install -y python
RUN apt-get install -y python-pip
RUN apt-get clean all
RUN pip install flask
ADD hello.py /tmp/hello.py
EXPOSE 5000
CMD ["python","/tmp/hello.py"]