3, docker common commands

1, help command

1、docker version

2、docker info

3, focus on mastering: docker --help

2, the mirror command

1, docker, mirror image, the relationship between the container

2、docker images

(1) are listed on the local host mirroring

# Various options Description: 
the REPOSITORY: represents the repository of the source image
TAG: Mirror labels
IMAGE ID: ID mirroring
CREATED: image creation time
SIZE: image size

The same warehouse source can have multiple TAG, on behalf of the warehouse source different versions, we use REPOSITORY: TAG to define different image.
If you do not specify a mirrored version of the label, for example, you only use ubuntu, docker will default ubuntu: latest image

(2) OPTIONS DESCRIPTION

- A: List all the local mirror (image-containing intermediate layer)
 - Q: Displays the mirror ID.
- Digests: mirrored display summary information
 --no-trunc: display the complete image information

Pastry

Unique primary key

3, docker search a name XXX mirror

（1）dockerhub

website
https://hub.docker.com

One correspondence

(2) docker search [OPTIONS] mirrorname

# The OPTIONS DESCRIPTION: 
--no- the trunc: Complete image display Description
 - S: List Favorite Number value not less than the specified image.
- Automated: automated build list only type mirror;
docker pull a mirror name XXX

Like a number of more than 30 points

Show Details

4, docker pull a mirror name

docker pull mirroring name [: TAG]

docker pull tomcat

Pastry

5, docker rmi XXX mirrored a name ID

(1) Remove Mirror

docker rmi hello-world

is using

(2) delete individual: docker rmi -f ID mirroring

Forced to delete docker rmi -f hello-world

Delete the layer 2

tomcat 400M ???

(3) Remove plurality
docker rmi -f mirror name 1: TAG name Mirror 2: TAG

docker pull hello-world
docker pull nginx

docker images
docker rmi -f hello-world nginx
docker images

(4) Delete all
docker rmi -f $ (docker images -qa )

Equivalent to

docker images -qa # past and all

docker rmi  -f  $(docker images -qa)

6, thinking

Combined with our Git learning experience, I guess whether there will docker commit / docker push? ?

3, container command

There are mirrors to create the container, which is the fundamental premise (download a demo CentOS mirrors)

docker pull centos

docker images

Only 200M

And start a new container
Docker RUN [the OPTIONS] the IMAGE [the COMMAND] [ARG ...]
the OPTIONS DESCRIPTION
start interactive container

.................

docker images

docker run -it xxxx

-i Interactive

-t pseudo-terminal

XXX in a mirror, generating vessel, and into the container centos

pwd

ps -if

Lists all currently running container

There are several containers whale back

PS Docker [the OPTIONS]
the OPTIONS DESCRIPTION

。。。。。。。。。。。。

On a docker ps -l #

docker ps -a # past

docker ps on 3 -n 3 #

docker ps -ql # display only the container number, batch delete container

docker ps

Contrast of each other

Names were randomly assigned

Exit container
two kinds of exit
exit
container stop exit

Exit from the container inside

docker ps

No docker run

docker images centos

docker run -it --name mycentos0111 centos

View running container docker ps

My name is specified

ctrl + P + Q
container does not stop Exit

Leave without closing, run in the background

In the container ctrl + p + q

On the desktop docker ps

State up

docker ps -n 2

----------------

Start container
docker start container vessel name or ID

docker start xxxx

Desktop View docker ps

Restart container
docker restart container or containers ID name

Stop the container
docker stop container vessel name or ID

docker stop xxx slowly flameout, normal shutdown

docker ps

Forcibly stop the container
docker kill container or containers ID name

docker kill xxx unplug

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To delete a stopped container
docker rm container ID

docker ps -n 2

docker rm xxxx

docker ps -n 2

Forced to delete

docker rm -f xxx

Delete multiple containers
docker rm -f $ (docker ps -a -q)

docker ps -q -a # previous container, all

docker ps -a -q | xargs docker rm

The value passed to a command 1

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Important to
start the daemon container
docker run -d container name
to view the container logs
docker logs -f -t --tail container ID
* -t is to add a timestamp
* -f to follow the latest log print
* --tail figures show that last how many
view processes running within the container
docker top container ID
to view internal details of the container
docker inspect container ID
into the container and running a command line interactive
docker exec -it container ID bashShell
re-entering the container ID docker attach
these two distinguished
attach directly into the container start command terminals will not start a new process
exec is opening a new terminal in the container, and may start a new process of
copying files from the vessel to the host
docker cp container ID: path to the destination host path within the container