环境:
CentOS 7.2
docker-engine-1.11.2
导入image(import)
[root@ct7 ~]#
docker import
centos7.xz centos:7.2
sha256:8f2b523f4f8a2b0640ae58b443b07537e5340c329fe743633be9044c43d24a03
查看image(images)
[root@ct7 ~]#
docker images
REPOSITORY
TAG
IMAGE ID
CREATED
SIZE
centos
7.2
8f2b523f4f8a
4 seconds
ago
434.8 MB
查看image历史记录(history)
[root@ct7
~]# docker images
REPOSITORY
TAG
IMAGE ID
CREATED
SIZE
centos
7.2
8557cab7403a
28 minutes
ago 434.8
MB
localhost:5000/centos
7.2
8557cab7403a
28 minutes
ago 434.8
MB
[root@ct7
~]# docker history
8557cab7403a
IMAGE
CREATED
CREATED BY
SIZE
COMMENT
8557cab7403a
28 minutes
ago
434.8 MB
Imported from -
tag到指定registry(tag)
[root@ct7
~]# docker tag centos:7.2
localhost:5000/centos:7.2
上传已经tag好的image到指定registry(push)
[root@ct7
~]# docker push
localhost:5000/centos:7.2
The push
refers to a repository [localhost:5000/centos]
6b93a697efc9:
Pushed
7.2:
digest:
sha256:58d4c29d47ad39cf11a0cff64c84329417da66306f581fd64caf7b750eaa3272
size: 529
[root@ct7
~]# docker images
REPOSITORY
TAG
IMAGE ID
CREATED
SIZE
centos
7.2
8557cab7403a
4 minutes
ago 434.8
MB
localhost:5000/centos
7.2
8557cab7403a
4 minutes ago
434.8
MB
运行容器(run)
[root@ct7 ~]#
docker run -idt centos:7.2
/bin/bash
46a559d88c3f5c2c9a56a2d03637ec0e11ae6d762ba3560eee346ad0fca55642
连接到指定容器console
i.attach
[root@ct7 ~]# docker
ps -a
CONTAINER ID
IMAGE
COMMAND
CREATED
STATUS
PORTS
NAMES
f7cd476208ec
centos:7
"/bin/bash"
6 seconds ago
Up 5
seconds
agitated_meitner
[root@ct7 ~]# docker
attach f7cd476208ec
[root@f7cd476208ec /]#
cd
[root@f7cd476208ec ~]# uname
-a
Linux f7cd476208ec
2.6.32-431.el6.x86_64 #1 SMP Fri Nov 22 03:15:09 UTC 2013 x86_64
x86_64 x86_64 GNU/Linux
[root@f7cd476208ec ~]# cat
/etc/redhat-release
CentOS Linux release 7.2.1511
(Core)
提示:Ctl+P+Q可以退出交互式shell后，容器仍后台运行
或
ii.exec
注意:exec一定要接上-it这两个参数
root@router:~#docker
exec -it
zookeeper1 /bin/bash
bash-4.3#
ls
CHANGES.txt
README.txt
build.xml
dist-maven
ivysettings.xml
src
zookeeper-3.4.8.jar.md5
LICENSE.txt
README_packaging.txt
conf
docs
lib
zookeeper-3.4.8.jar
zookeeper-3.4.8.jar.sha1
NOTICE.txt
bin
contrib
ivy.xml
recipes
zookeeper-3.4.8.jar.asc
bash-4.3#
root@router:~#
查看容器(ps,top)
[root@ct7
~]# docker ps -a
CONTAINER
ID
IMAGE
COMMAND
CREATED
STATUS
PORTS
NAMES
46a559d88c3f
centos:7.2
"/bin/bash"
7 minutes ago
Up 7
minutes
dreamy_knuth
[root@ct7 ~]#
docker top
myfirst_centos7
UID
PID
PPID
C
STIME
TTY
TIME
CMD
root
2997
2983
0
23:01
pts/1
00:00:00
/bin/bash
容器重命名(rename)
[root@ct7
~]# docker rename 46a559d88c3f
myfirst_centos7
[root@ct7
~]# docker ps
CONTAINER
ID
IMAGE
COMMAND
CREATED
STATUS
PORTS
NAMES
46a559d88c3f
centos:7.2
"/bin/bash"
8 minutes ago
Up 8
minutes
myfirst_centos7
实时资源状态(stats)
[root@ct7
~]# docker stats
CONTAINER
CPU %
MEM USAGE
/ LIMIT MEM %
NET I/O
BLOCK I/O
PIDS
46a559d88c3f
0.00%
4.768 MB / 1.52 GB 0.31%
0 B / 648 B
4.711 MB /
0 B
0
停止容器(stop)
在发送SIGTERM后等待10s，如果未正常停止随及发送SIGKILL，默认等待时间10s
[root@ct7
~]# docker stop
myfirst_centos7
myfirst_centos7
[root@ct7
~]# docker ps -a
CONTAINER
ID
IMAGE
COMMAND
CREATED
STATUS
PORTS
NAMES
46a559d88c3f
centos:7.2
"/bin/bash"
14 minutes ago
Exited (137) 8 seconds ago
myfirst_centos7
强制摧毁容器(kill)
[root@ct7 ~]# docker kill 46a559d88c3f
docker kill $(docker ps -a -q) #kill掉所有
导出容器(export)
[root@ct7
~]# docker export 46a559d88c3f|xz -
>centos7.2.xz
[root@ct7
~]# ll -h centos7.2.xz
-rw-r--r--. 1 root
root 76M 6月 11 23:47 centos7.2.xz
容器另存为镜像(commit)
root@router:~#docker
ps
CONTAINER
ID
IMAGE
COMMAND
CREATED
STATUS
PORTS
NAMES
748a175ceb0a
shipyard/shipyard:latest "/bin/controller serv"
2 hours ago
Up 2
hours
0.0.0.0:8080->8080/tcp
shipyard-controller
44f09f936dcd
rethinkdb
"rethinkdb
--bind all" 2 hours ago
Up 2
hours
0.0.0.0:28015->28015/tcp,
8080/tcp, 0.0.0.0:29015->29015/tcp
shipyard-rethinkdb
5081f73ccfe1
swarm:latest
"/swarm manage --host"
2 hours ago
Up 2
hours
2375/tcp,
0.0.0.0:3375->3375/tcp
swarm-manager
root@router:~#docker
commit 748a175ceb0a container2image
sha256:d66074af31ebda0285e585085f99ae2c41c17d3d4e500d235811f431a73ce748
root@router:~#docker
images
REPOSITORY
TAG
IMAGE ID
CREATED
SIZE
container2image
latest
d66074af31eb
5 seconds
ago 58.89
MB
swarm
latest
a180b24e38ed
8 days
ago
19.34 MB
rethinkdb
latest
bda7967b3714
8 days ago
184.2 MB
shipyard/shipyard
latest
ab940e847950
2 weeks
ago
58.89 MB
consul
latest
55e81aa6b87d
6 weeks ago
32.4 MB
localhost:5000/consul
latest
55e81aa6b87d
6 weeks ago
32.4 MB
导出image(save)
[root@ct7
~]# docker images
REPOSITORY
TAG
IMAGE ID
CREATED
SIZE
192.168.8.254:5000/elasticsearch
2.3.3
15930a3e11bf
3 days ago
346.5 MB
[root@ct7
~]# docker save $(docker images
-q)|xz - >elasticsearch.xz
[root@ct7
~]# ll -h elasticsearch.xz
-rw-r--r--. 1 root
root 103M 6月 13 22:31 elasticsearch.xz
载入image(load)
[root@ct7
~]# docker images
REPOSITORY
TAG
IMAGE
ID
CREATED
SIZE
[root@ct7
~]# docker load -i
elasticsearch.xz
4dcab49015d4: Loading
layer 130.9 MB/130.9 MB
c751e06f6a36: Loading
layer 45.57 MB/45.57 MB
a1f0f0d373ba: Loading
layer 1.686 MB/1.686 MB
78e3064012ad: Loading
layer 3.584 kB/3.584 kB
20e1c27db3cb: Loading
layer 3.584 kB/3.584 kB
5203ce9caf88: Loading
layer 141.3 MB/141.3 MB
86df4b52a65a: Loading
layer 426 kB/426 kB
3107ee86e723: Loading
layer 2.703 MB/2.703 MB
8fd4a68bcb66: Loading
layer 5.632 kB/5.632 kB
cc850bd59217: Loading
layer 3.584 kB/3.584 kB
9a408a27d247: Loading
layer 31.79 MB/31.79 MB
63a90f5c074e: Loading
layer 4.608 kB/4.608 kB
18ec3e989c31: Loading
layer 5.12 kB/5.12 kB
a0d7cd401a94: Loading
layer 2.56 kB/2.56 kB
[root@ct7
~]# docker images
REPOSITORY
TAG
IMAGE
ID
CREATED
SIZE
15930a3e11bf
3 days
ago
346.5 MB
[root@ct7
~]# docker tag 15930a3e11bf
elasticsearch:2.3.2
[root@ct7
~]# docker images
REPOSITORY
TAG
IMAGE
ID
CREATED
SIZE
elasticsearch
2.3.2
15930a3e11bf
3 days
ago
346.5 MB
注意:load是载入save出来的image,如果用import来导入save出来的image可能会出现问题，如出现如下问题，请inspect看下镜像配置
docker: Error response from daemon: No command
specified.
See
'docker run --help'.
还可以直接从标准输入载入image
root@router:~#curl
-u vadmin:123 ftp://192.168.8.254/elasticsearch.xz|docker
load
%
Total %
Received % Xferd Average
Speed Time
Time
Time Current
Dload Upload Total Spent
Left Speed
100 102M 100 102M
0
0 5277k
0 0:00:19 0:00:19
--:--:-- 9647k
4dcab49015d4:
Loading layer 130.9 MB/130.9 MB
c751e06f6a36:
Loading layer 45.57 MB/45.57 MB
a1f0f0d373ba:
Loading layer 1.686 MB/1.686 MB
78e3064012ad:
Loading layer 3.584 kB/3.584 kB
20e1c27db3cb:
Loading layer 3.584 kB/3.584 kB
5203ce9caf88:
Loading layer 141.3 MB/141.3 MB
86df4b52a65a:
Loading
layer 426
kB/426 kB
3107ee86e723:
Loading layer 2.703 MB/2.703 MB
8fd4a68bcb66:
Loading layer 5.632 kB/5.632 kB
cc850bd59217:
Loading layer 3.584 kB/3.584 kB
9a408a27d247:
Loading layer 31.79 MB/31.79 MB
63a90f5c074e:
Loading layer 4.608 kB/4.608 kB
18ec3e989c31:
Loading layer 5.12 kB/5.12
kB
a0d7cd401a94:
Loading layer 2.56 kB/2.56
kB
root@router:~#docker
images
REPOSITORY
TAG
IMAGE ID
CREATED
SIZE
15930a3e11bf
4 days ago
346.5 MB
copy文件(cp)
提示:cp可以在docker宿主机与容器之间进行文件拷贝,非常有用
[root@ela-client ~]#
docker ps
CONTAINER
ID
IMAGE
COMMAND
CREATED
STATUS
PORTS
NAMES
437a8f09aac9
elasticsearch:2.3.2 "/docker-entrypoint.s"
7 minutes ago
Up 7
minutes
0.0.0.0:9200->9200/tcp, 9300/tcp
elasticsearch-client
[root@ela-client ~]#
docker cp
elasticsearch-client:/usr/share/elasticsearch/config/elasticsearch.yml
.
[root@ela-client ~]#
ls
elasticsearch.yml
暂停容器(pause)
[root@ct7
~]# docker pause
afe3c167ad5e
afe3c167ad5e
[root@ct7
~]# docker ps -a
CONTAINER
ID
IMAGE
COMMAND
CREATED
STATUS
PORTS
NAMES
afe3c167ad5e
centos:7.2
"/bin/bash"
4 minutes ago
Up 4 minutes (Paused)
prickly_booth
恢复暂停容器(unpause)
[root@ct7
~]# docker unpause
afe3c167ad5e
afe3c167ad5e
[root@ct7
~]# docker ps -a
CONTAINER
ID
IMAGE
COMMAND
CREATED
STATUS
PORTS
NAMES
afe3c167ad5e
centos:7.2
"/bin/bash"
5 minutes ago
Up 5
minutes
prickly_booth
删除容器(rm)
[root@ct7
~]# docker rm -f
myfirst_centos7
myfirst_centos7
[root@ct7
~]# docker ps -a
CONTAINER
ID
IMAGE
COMMAND
CREATED
STATUS
PORTS
NAMES
删除image(rmi)
[root@ct7
~]# docker rmi -f
8f2b523f4f8a
Untagged:
centos:7.2
Deleted:
sha256:8f2b523f4f8a2b0640ae58b443b07537e5340c329fe743633be9044c43d24a03
Deleted:
sha256:6b93a697efc9d799ade79afe50b1be48cbe41c3533681bb7d4f8143839379af6
查看容器日志(logs)
[root@ela-client
~]# docker logs $(docker ps
-q)
[2016-06-13
16:09:51,308][INFO ][node
] [Sunfire] version[2.3.3],
pid[1], build[218bdf1/2016-05-17T15:40:04Z]
[2016-06-13
16:09:51,311][INFO ][node
] [Sunfire] initializing
...
...
...
[2016-06-13
16:09:56,408][INFO ][node
]
[Sunfire] started
[2016-06-13
16:09:56,417][INFO ][gateway
] [Sunfire] recovered [0] indices into
cluster_state
docker环境基本信息(info)
[root@ct7
~]# docker info
Containers:
1
Running:
1
Paused:
0
Stopped:
0
Images:
1
Server
Version: 1.11.2
Storage
Driver: devicemapper
Pool
Name: docker-253:1-894992-pool
Pool
Blocksize: 65.54 kB
Base
Device Size: 10.74 GB
Backing
Filesystem: xfs
Data
file: /dev/loop0
Metadata
file: /dev/loop1
Data
Space Used: 508.9 MB
Data
Space Total: 107.4 GB
Data
Space Available: 2.52 GB
Metadata
Space Used: 954.4 kB
Metadata
Space Total: 2.147 GB
Metadata
Space Available: 2.147 GB
Udev
Sync Supported: true
Deferred
Removal Enabled: false
Deferred
Deletion Enabled: false
Deferred
Deleted Device Count: 0
Data
loop file:
/var/lib/docker/devicemapper/devicemapper/data
WARNING:
Usage of loopback devices is strongly discouraged for production
use. Either use `--storage-opt dm.thinpooldev` or use
`--storage-opt dm.no_warn_on_loop_devices=true` to suppress this
warning.
Metadata
loop file:
/var/lib/docker/devicemapper/devicemapper/metadata
Library
Version: 1.02.107-RHEL7 (2015-12-01)
Logging
Driver: json-file
Cgroup
Driver: cgroupfs
Plugins:
Volume:
local
Network:
null host bridge
Kernel
Version: 3.10.0-229.el7.x86_64
Operating
System: CentOS Linux 7 (Core)
OSType:
linux
Architecture:
x86_64
CPUs:
4
Total
Memory: 1.416 GiB
Name:
ct7.example.com
ID:
QFBN:O5KD:SGNG:SMHQ:PRCR:PRIF:SRCZ:RBAE:N627:WV5Z:7WWG:FG5C
Docker
Root Dir: /var/lib/docker
Debug
mode (client): false
Debug
mode (server): false
Registry:
https://index.docker.io/v1/
WARNING:
bridge-nf-call-iptables is disabled
WARNING:
bridge-nf-call-ip6tables is disabled
查看容器或镜像配置(inspect)
[root@ct7
~]# docker inspect e70a2b3c08cf
[
{
"Id":
"e70a2b3c08cf06f7f13c7f9a9059837d8d6c6ccabafa92755890fb2dcedbdf5a",
"Created":
"2016-06-12T05:39:29.246795305Z",
"Path":
"/usr/local/bin/run",
"Args":
[],
"State":
{
"Running":
true,
"Paused":
false,
"Restarting":
false,
"OOMKilled":
false,
"Dead":
false,
"Pid":
12924,
"ExitCode":
0,
"Error":
"",
"StartedAt":
"2016-06-12T06:15:19.635211813Z",
"FinishedAt":
"2016-06-12T06:04:46.333042454Z"
},
"Image":
"68102ad1785d019b337cd65366085c9f9bb5d66a8e4dd6f6650849e6ea71e70b",
"NetworkSettings": {
"Bridge":
"",
"EndpointID":
"e88fe632b62d5bb3fd7babc6c43a59be65a13b444467c2fcc2486032a9f034e7",
"Gateway":
"172.17.42.1",
"GlobalIPv6Address":
"",
"GlobalIPv6PrefixLen":
0,
"HairpinMode":
false,
"IPAddress":
"172.17.0.2",
"IPPrefixLen":
16,
"IPv6Gateway":
"",
"LinkLocalIPv6Address":
"",
"LinkLocalIPv6PrefixLen":
0,
"MacAddress":
"02:42:ac:11:00:02",
"NetworkID":
"02ce8fd5b42fae0295f721736985105fa7d56c2134b5cc8c865f41276c50985d",
"PortMapping":
null,
"Ports": {
"2375/tcp": [
{
"HostIp":
"0.0.0.0",
"HostPort":
"2375"
}
]
},
"SandboxKey":
"/var/run/docker/netns/e70a2b3c08cf",
"SecondaryIPAddresses":
null,
"SecondaryIPv6Addresses":
null
},
"ResolvConfPath":
"/var/lib/docker/containers/e70a2b3c08cf06f7f13c7f9a9059837d8d6c6ccabafa92755890fb2dcedbdf5a/resolv.conf",
"HostnamePath":
"/var/lib/docker/containers/e70a2b3c08cf06f7f13c7f9a9059837d8d6c6ccabafa92755890fb2dcedbdf5a/hostname",
"HostsPath":
"/var/lib/docker/containers/e70a2b3c08cf06f7f13c7f9a9059837d8d6c6ccabafa92755890fb2dcedbdf5a/hosts",
"LogPath":
"/var/lib/docker/containers/e70a2b3c08cf06f7f13c7f9a9059837d8d6c6ccabafa92755890fb2dcedbdf5a/e70a2b3c08cf06f7f13c7f9a9059837d8d6c6ccabafa92755890fb2dcedbdf5a-json.log",
"Name":
"/shipyard-proxy",
"RestartCount": 0,
"Driver":
"devicemapper",
"ExecDriver": "native-0.2",
"MountLabel": "",
"ProcessLabel": "",
"Volumes":
{
"/var/run/docker.sock":
"/var/run/docker.sock"
},
"VolumesRW": {
"/var/run/docker.sock":
true
},
"AppArmorProfile": "",
"ExecIDs":
null,
"HostConfig": {
"Binds": [
"/var/run/docker.sock:/var/run/docker.sock"
],
"ContainerIDFile":
"",
"LxcConf":
[],
"Memory":
0,
"MemorySwap":
0,
"CpuShares":
0,
"CpuPeriod":
0,
"CpusetCpus":
"",
"CpusetMems":
"",
"CpuQuota":
0,
"BlkioWeight":
0,
"OomKillDisable":
false,
"Privileged":
false,
"PortBindings":
{
"2375/tcp": [
{
"HostIp":
"",
"HostPort":
"2375"
}
]
},
"Links":
null,
"PublishAllPorts":
false,
"Dns":
null,
"DnsSearch":
null,
"ExtraHosts":
null,
"VolumesFrom":
null,
"Devices":
[],
"NetworkMode":
"bridge",
"IpcMode":
"",
"PidMode":
"",
"UTSMode":
"",
"CapAdd":
null,
"CapDrop":
null,
"RestartPolicy":
{
"Name": "always",
"MaximumRetryCount": 0
},
"SecurityOpt":
null,
"ReadonlyRootfs":
false,
"Ulimits":
null,
"LogConfig":
{
"Type": "json-file",
"Config": {}
},
"CgroupParent":
""
},
"Config":
{
"Hostname":
"node-a",
"Domainname":
"example.com",
"User": "",
"AttachStdin":
false,
"AttachStdout":
false,
"AttachStderr":
false,
"PortSpecs":
null,
"ExposedPorts":
{
"2375/tcp": {}
},
"Tty":
true,
"OpenStdin":
true,
"StdinOnce":
false,
"Env": [
"PORT=2375",
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
],
"Cmd":
null,
"Image":
"shipyard/docker-proxy:latest",
"Volumes":
null,
"VolumeDriver":
"",
"WorkingDir":
"",
"Entrypoint":
[
"/usr/local/bin/run"
],
"NetworkDisabled":
false,
"MacAddress":
"",
"OnBuild":
null,
"Labels":
{}
}
}
]
报错:
Error response from daemon: driver failed programming external
connectivity on endpoint prickly_turing
(081405caf9fe991605f89d0ada69f3cbbd54e0526b9a85fa9b8ea6619e5161ee):
iptables failed: iptables --wait -t nat -A DOCKER -p tcp -d 0/0
--dport 8888 -j DNAT --to-destination 172.17.0.2:8080 ! -i docker0:
iptables: No chain/target/match by that
name.
(exit status 1)
Error: failed to start containers: 29683c3b68ac
原因:
docker服务启动时定义的自定义链DOCKER由于某种原因被清掉
重启docker服务及可重新生成自定义链DOCKER
Chain PREROUTING (policy ACCEPT)
target
prot opt
source
destination
DOCKER
all --
0.0.0.0/0
0.0.0.0/0
ADDRTYPE match dst-type LOCAL
Chain INPUT (policy ACCEPT)
target
prot opt
source
destination
Chain OUTPUT (policy ACCEPT)
target
prot opt
source
destination
DOCKER
all --
0.0.0.0/0
!127.0.0.0/8
ADDRTYPE match dst-type LOCAL
Chain POSTROUTING (policy ACCEPT)
target
prot opt
source
destination
MASQUERADE all
--
172.17.0.0/16
0.0.0.0/0
MASQUERADE tcp
--
172.17.0.2
172.17.0.2
tcp dpt:8080
Chain DOCKER (2 references)
target
prot opt
source
destination
RETURN
all --
0.0.0.0/0
