环境准备：
[Jack@test101 base]$ docker run -d --name app1 -p 10023:22 pcnk
/base
:v2
[Jack@test101 base]$ docker
ps
-a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c10446ab9620 pcnk
/base
:v2 "
/usr/bin/supervisor
9 seconds ago Up 7 seconds 0.0.0.0:10023->22
/tcp
app1
[Jack@test101 base]$ docker commit -m
"ssh,supervisor"
-a
"pcnk"
c10446ab9620 base:latest
29e0b4550969220103e7179df62f31f3f1345a364c4fb103f73a5ba3b6f8fc5d
[Jack@test101 base]$ docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
base latest 29e0b4550969 About a minute ago 251.3 MB
一、container的导入导出
保存：
[Jack@test101 base]$ docker
export
app1 >
/home/datacenter/docker/containers/app1
.
tar
删除：
[Jack@test101 base]$ docker stop app1
app1
[Jack@test101 base]$ docker
rm
app1
app1
恢复：
[Jack@test101 base]$
cat
/home/datacenter/docker/containers/app1
.
tar
|docker
import
- base_import
c9761ff46cf1ff3e0f1de04ed2fcf52b0b591b6fd0ea943611f2066046a17aae
[Jack@test101 base]$ docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
base_import latest c9761ff46cf1 15 seconds ago 228.1 MB
base latest 29e0b4550969 13 minutes ago 251.3 MB
website
/sync
latest 1bda5d872bf7 About an hour ago 508 MB
pcnk
/base
v2 064aa35dfcef 7 hours ago 251.3 MB
centos centos7 fd44297e2ddb 2 weeks ago 215.7 MB
centos latest fd44297e2ddb 2 weeks ago 215.7 MB
centos 7 fd44297e2ddb 2 weeks ago 215.7 MB
[Jack@test101 base]$ docker images -tree
Warning:
'-tree'
is deprecated, it will be removed soon. See usage.
├─c9761ff46cf1 Virtual Size: 228.1 MB Tags: base_import:latest
└─6941bfcbbfca Virtual Size: 0 B
└─41459f052977 Virtual Size: 215.7 MB
└─fd44297e2ddb Virtual Size: 215.7 MB Tags: centos:7, centos:centos7, centos:latest
└─751a85a0d00b Virtual Size: 215.7 MB
└─19b009f08542 Virtual Size: 228.1 MB
└─420cb9e73c70 Virtual Size: 251.3 MB
└─e97f94a79de0 Virtual Size: 251.3 MB
└─fde06c761bde Virtual Size: 251.3 MB
└─dbfae1099999 Virtual Size: 251.3 MB
└─064aa35dfcef Virtual Size: 251.3 MB Tags: pcnk
/base
:v2
└─b41b76b51e1a Virtual Size: 505.9 MB
└─1bda5d872bf7 Virtual Size: 508 MB Tags: website
/sync
:latest
没有之前的层的信息，变成了独立的一层：
├─c9761ff46cf1 Virtual Size: 228.1 MB Tags: base_import:latest
二、images的导入导出
注：据文档解释，这种方式，不会丢失提交历史和层，可以回滚，但，目前尚未操作过回滚。
保存：
[Jack@test101 base]$ docker save base >
/home/datacenter/docker/images/base
.
tar
删除：
[Jack@test101 base]$ docker rmi 29e0b4550969
Untagged: base:latest
Deleted: 29e0b4550969220103e7179df62f31f3f1345a364c4fb103f73a5ba3b6f8fc5d
恢复：
[Jack@test101 base]$ docker load <
/home/datacenter/docker/images/base
.
tar
[Jack@test101 base]$ docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
base_import latest c9761ff46cf1 About a minute ago 228.1 MB
base latest 29e0b4550969 17 minutes ago 251.3 MB
website
/sync
latest 1bda5d872bf7 About an hour ago 508 MB
pcnk
/base
v2 064aa35dfcef 7 hours ago 251.3 MB
centos 7 fd44297e2ddb 2 weeks ago 215.7 MB
centos centos7 fd44297e2ddb 2 weeks ago 215.7 MB
centos latest fd44297e2ddb 2 weeks ago 215.7 MB
[Jack@test101 base]$ docker images --tree
Warning:
'--tree'
is deprecated, it will be removed soon. See usage.
├─c9761ff46cf1 Virtual Size: 228.1 MB Tags: base_import:latest
└─6941bfcbbfca Virtual Size: 0 B
└─41459f052977 Virtual Size: 215.7 MB
└─fd44297e2ddb Virtual Size: 215.7 MB Tags: centos:latest, centos:7, centos:centos7
└─751a85a0d00b Virtual Size: 215.7 MB
└─19b009f08542 Virtual Size: 228.1 MB
└─420cb9e73c70 Virtual Size: 251.3 MB
└─e97f94a79de0 Virtual Size: 251.3 MB
└─fde06c761bde Virtual Size: 251.3 MB
└─dbfae1099999 Virtual Size: 251.3 MB
└─064aa35dfcef Virtual Size: 251.3 MB Tags: pcnk
/base
:v2
├─29e0b4550969 Virtual Size: 251.3 MB Tags: base:latest
└─b41b76b51e1a Virtual Size: 505.9 MB
└─1bda5d872bf7 Virtual Size: 508 MB Tags: website
/sync
:latest
恢复出来的image，还是有原来的层的信息：
├─29e0b4550969 Virtual Size: 251.3 MB Tags: base:latest
三、查看
history
可以观察到这个image的build过程
[Jack@test101 base]$ docker
history
base_import
IMAGE CREATED CREATED BY SIZE
c9761ff46cf1 41 minutes ago 228.1 MB
[Jack@test101 base]$ docker
history
base
IMAGE CREATED CREATED BY SIZE
29e0b4550969 57 minutes ago 699 B
064aa35dfcef 8 hours ago
/bin/sh
-c
dbfae1099999 8 hours ago
/bin/sh
-c
fde06c761bde 8 hours ago
/bin/sh
-c
set
-x &&
/bin/sed
-i 's/. 12.99 kB
e97f94a79de0 8 hours ago
/bin/sh
-c
420cb9e73c70 8 hours ago
/bin/sh
-c rpm -ivh http:
//dl
.fedoraproject.o 23.25 MB
19b009f08542 8 hours ago
/bin/sh
-c yum -y update; yum clean all 12.41 MB
751a85a0d00b 8 hours ago
/bin/sh
-c
fd44297e2ddb 2 weeks ago
/bin/sh
-c
41459f052977 2 weeks ago
/bin/sh
-c
6941bfcbbfca 2 weeks ago
/bin/sh
-c
[Jack@test101 base]$ docker
history
--help
Usage: docker
history
[OPTIONS] IMAGE
Show the
history
of an image
--help=
false
Print usage
--no-trunc=
false
Don't truncate output
-q, --quiet=
false
Only show numeric IDs
[Jack@test101 base]$ docker
history
--no-trunc=
true
base
IMAGE CREATED CREATED BY SIZE
29e0b4550969220103e7179df62f31f3f1345a364c4fb103f73a5ba3b6f8fc5d 58 minutes ago 699 B
064aa35dfcef778713ad1b4cc02add4e8e48425741768595d7b5909961f74cee 8 hours ago
/bin/sh
-c
dbfae1099999316cc130ac467768e6c957a98682076b659642d0d8c5ec7587e2 8 hours ago
/bin/sh
-c
fde06c761bde092a37890e94c8d68e16ef0ced5f1c70357a2cc3c4aab51cbe3d 8 hours ago
/bin/sh
-c
set
-x &&
/bin/sed
-i
's/.*session.*required.*pam_loginuid.so.*/session optional pam_loginuid.so/g'
/etc/pam
.d
/sshd
&&
ssh
-keygen -t rsa -f
/etc/ssh/ssh_host_rsa_key
-N
''
&&
mkdir
/var/run/sshd
/etc/supervisor
.d &&
/usr/bin/echo_supervisord_conf
>
/etc/supervisord
.conf &&
sed
-i
's/nodaemon=false/nodaemon=true/'
/etc/supervisord
.conf &&
echo
-e
'[include]\nfiles=/etc/supervisor.d/*.ini'
>>
/etc/supervisord
.conf &&
grep
^[^\;]
/etc/supervisord
.conf &&
chmod
755
/root/start
.sh && .
/root/start
.sh 12.99 kB
e97f94a79de0fa89a437ace2a2d14d3cfbba83f8d2f0528660e9028832735d6e 8 hours ago
/bin/sh
-c
420cb9e73c70c2e7d20af40d66cae68ed32362072a9aae53e1855c700dc79718 8 hours ago
/bin/sh
-c rpm -ivh http:
//dl
.fedoraproject.org
/pub/epel/7/x86_64/e/epel-release-7-5
.noarch.rpm && yum -y
install
openssh-server
passwd
python-pip && yum clean all &&
/usr/bin/pip
install
supervisor 23.25 MB
19b009f08542bcd1e8a5e17e4b1bd60e3e1cadbafcf4eaae914a3ba67784b73e 8 hours ago
/bin/sh
-c yum -y update; yum clean all 12.41 MB
751a85a0d00bcbc6fac2051f79a978c9091ed03b6fa451ab4bfff53d28c1f40d 8 hours ago
/bin/sh
-c
fd44297e2ddb050ec4fa9752b7a4e3a8439061991886e2091e7c1f007c906d75 2 weeks ago
/bin/sh
-c
41459f052977938b824dd011e1f2bec2cb4d133dfc7e1aa0e90f7c5d337ca9c4 2 weeks ago
/bin/sh
-c
6941bfcbbfca7f4f48becd38f2639157042b5cf9ab8c080f1d8b6d047380ecfc 2 weeks ago
/bin/sh
-c
