dokcer基础命令-详解
Docker是否正确安装1
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# dockerinfo
Containers: 1
Images: 11
Storage Driver: aufs
Root Dir: /var/lib/docker/aufs
Backing Filesystem: extfs
Dirs: 13
Dirperm1 Supported: false
Execution Driver: native-0.2
Logging Driver: json-file
Kernel Version: 3.10.5-3.el6.x86_64
Operating System: <unknown>
CPUs: 1
Total Memory: 490 MiB
Name: oldboy
ID: GEKM:V4DM:4GEI:D64E:MYZC:AZ6B:HS2G:3LWR:BCP7:6DBC:3BGJ:YOJR
WARNING: No swap limit support
#
#
Docker帮助
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# docker pull --help
Usage: docker pull NAME[:TAG|@DIGEST]
Pull an image or a repository from the registry
-a, --all-tags=false Download all tagged images in the repository
--help=false Print usage
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Docker查询
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docker search 软件名称
docker searchcentos7
dockersearchnginx
dockersearchhttpd
Docker拉取一个预建的镜像并运行
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BusyBox是一个最小的Linux系统，它提供了主要的功能，不包含一些与GNU相关的功能和选项。
# docker pull busybox
latest: Pulling from busybox
4185ddbe03f8: Pull complete
b05baf071fd5: Pull complete
Digest: sha256:65ce39ce3eb0997074a460adfb568d0b9f0f6a4392d97b6035630c9d7bf92402
Status: Downloaded newer image for busybox:latest
# docker run busybox /bin/echo hello world
hello world
docker 基本操作命令启动删除保存
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# sample=$(docker run -d busybox /bin/sh -c "while true;do echo docker;sleep 2;done")
# docker logs $sample #dockerlogs查看job的当前状态
docker
docker
docker
docker
docker
docker
# docker stop $sample #停止名为sample的容器
# docker restart$sample #重新启动sample的docker
# docker stop$sample && dockerrm $sample #删除一个docker必须要先停止
3b7f9c8dc5d9449564345a75436d5cc21a9a64e6a738fa70b44aeab6b20d83ba
3b7f9c8dc5d9449564345a75436d5cc21a9a64e6a738fa70b44aeab6b20d83ba
# sample=$(docker run -d busybox /bin/sh -c "while true;do echo docker;sleep 2;done")
# docker commit $sample jobs01
4737ce9e8877704f7985b3bb8d04f0e69f01da5d5fac5d5ce3edd1d9e599570c
# dockerimages
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
jobs01 latest 4737ce9e8877 4 seconds ago 1.093 MB
centos centos6 273a1eca2d3a 4 days ago 194.6 MB
<none> <none> 3fbd5972aaac 4 days ago 196.7 MB
centos 6.8 c51f770ba2ca 4 weeks ago 194.5 MB
busybox latest b05baf071fd5 5 weeks ago 1.093 MB
#
删除一个镜像
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# dockerimages
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
jobs01 latest 4737ce9e8877 18 minutes ago 1.093 MB
centos centos6 273a1eca2d3a 4 days ago 194.6 MB
<none> <none> 3fbd5972aaac 4 days ago 196.7 MB
centos 6.8 c51f770ba2ca 4 weeks ago 194.5 MB
busybox latest
# dockerrmi jobs01
Untagged: jobs01:latest
Deleted: 4737ce9e8877704f7985b3bb8d04f0e69f01da5d5fac5d5ce3edd1d9e599570c
# dockerimages
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
centos centos6 273a1eca2d3a 4 days ago 194.6 MB
<none> <none> 3fbd5972aaac 4 days ago 196.7 MB
centos 6.8 c51f770ba2ca 4 weeks ago 194.5 MB
busybox latest b05baf071fd5 5 weeks ago 1.093 MB
#
# dockerrmi-f jobs02 #强制删除一个镜像
Untagged: jobs02:latest
Deleted: 910fad104843559d4e5b908305b4dae7a71cf9bda6e99b296e8d73f77192b043
# dockerimages
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
centos centos6 273a1eca2d3a 4 days ago 194.6 MB
<none> <none> 3fbd5972aaac 4 days ago 196.7 MB
centos 6.8 c51f770ba2ca 4 weeks ago 194.5 MB
busybox latest b05baf071fd5 5 weeks ago 1.093 MB
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查看正在运行的docker和删除一个docker和启动一个已经停止的docker
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# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
d01eb9c6bfcc busybox "/bin/sh -c 'while t 3 minutes ago Up 3 minutes drunk_davinci
0910014720e8 busybox "/bin/sh -c 'while t 23 minutes ago Up 23 minutes drunk_meitner
92b9a783fd63 busybox "/bin/echo hello wol 47 minutes ago Exited (0) 47 minutes ago hopeful_rosalind
5ed9622fe692 busybox "/bin/echo hello wor 52 minutes ago Exited (0) 52 minutes ago reverent_mayer
# docker stop d01eb9c6bfcc
# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
d01eb9c6bfcc busybox "/bin/sh -c 'while t 4 minutes ago Exited (137) 3 seconds ago drunk_davinci
0910014720e8 busybox "/bin/sh -c 'while t 24 minutes ago Up 24 minutes drunk_meitner
92b9a783fd63 busybox "/bin/echo hello wol 48 minutes ago Exited (0) 48 minutes ago hopeful_rosalind
5ed9622fe692 busybox "/bin/echo hello wor 53 minutes ago Exited (0) 53 minutes ago reverent_mayer
# docker start d01eb9c6bfcc
d01eb9c6bfcc
# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
d01eb9c6bfcc busybox "/bin/sh -c 'while t 6 minutes ago Up 2 seconds drunk_davinci
0910014720e8 busybox "/bin/sh -c 'while t 26 minutes ago Exited (137) About a minute ago drunk_meitner
92b9a783fd63 busybox "/bin/echo hello wol 50 minutes ago Exited (0) 50 minutes ago hopeful_rosalind
5ed9622fe692 busybox "/bin/echo hello wor 55 minutes ago Exited (0) 55 minutes ago reverent_mayer
#
使用一个镜像执行一个容器，容器内执行hello world 输出，输出后结束容器关闭
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# docker run busybox/bin/echo"hello world"
hello world
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docker镜像推送到docker仓库
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# dockerimages
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
jobs03 latest dd40474b2a4c 13 minutes ago 1.093 MB
centos centos6 273a1eca2d3a 4 days ago 194.6 MB
centos latest d83a55af4e75 4 days ago 196.7 MB
centos 6.8 c51f770ba2ca 4 weeks ago 194.5 MB
busybox latest b05baf071fd5 5 weeks ago 1.093 MB
# docker push jobs03
You cannot push a "root" repository. Please rename your repository to <user>/<repo> (ex: 123456/jobs03)
# docker tag jobs03 jb/jobs03
# docker push jb/jobs03
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