DCP Container Basics - degutos/wikis GitHub Wiki

How to display running container

[user@andregonzaga1 ~]$ docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

How to display all container already ran once

[user@andregonzaga1 ~]$ docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                     PORTS               NAMES
06cdf37f6a16        hello-world         "/hello"            2 minutes ago       Exited (0) 2 minutes ago                       wonderful_chan
drasekhar
fe92f29402e8        hello-world         "/hello"            20 hours ago        Exited (0) 20 hours ago                        inspiring_mont
alcini

How to create a container in an interactive way

[user@andregonzaga1 ~]$ docker run -it  centos:6

How to create container in an interactive way and set the container name and set /bin/bash to run as process

[user@andregonzaga1 ~]$ docker run -it --name testcontainer centos:6 /bin/bash

How to Stop a container running

[user@andregonzaga1 ~]$ docker stop testcontainer

How to remove all container

[user@andregonzaga1 ~]$ docker rm `docker ps -a -q`

How to create a container and delete automatically after running it

[user@andregonzaga1 ~]$ docker run -it --rm --name testcontainer centos:6 

How to create a container with VARIABLE

[user@andregonzaga1 ~]$ docker run -it --rm --env MYVAR=whatever --name testcontainer centos:6
[root@255701eed28c /]# echo $MYVAR
whatever

[user@andregonzaga1 ~]$ docker run -it --rm --env MYVAR=whatever --env MYVAR2=something --name testcontainer centos:6
[root@ec1db9bb60d0 /]# echo $MYVAR
whatever
[root@ec1db9bb60d0 /]# echo $MYVAR2
something

How to create a container in foreground state as a demon -d

[user@andregonzaga1 ~]$ docker run -d httpd
d53af8402fad2e905988ec8cb0206fe7dfceeee08b6f94155fcfb6b8cfe74f65
[user@andregonzaga1 ~]$ docker ps
CONTAINER ID        IMAGE               COMMAND              CREATED             STATUS              PORTS               NAMES
d53af8402fad        httpd               "httpd-foreground"   3 seconds ago       Up 2 seconds        80/tcp              kind_jepsen

How to attach to a running container with kill it after exit

[user@andregonzaga1 ~]$ docker exec -ti kind_jepsen  /bin/bash

OR

• To leave the container and leave it running Control + p + q