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Docker - connect to container command line
6
points
Hi, today I would like to show you how we can login to docker container command line.
Quick solutions
Using /bin/sh
docker exec -t -i PUT_CONTAINER_NAME_HERE /bin/sh
Using /bin/bash
Second option when our linux doesn't have /bin/sh, we need to use another shell /bin/bash
docker exec -t -i PUT_CONTAINER_NAME_HERE /bin/bash
If we don't have /bin/bash then this command will output the error
(OCI runtime exec failed, more here: to problem description and solution)
Practical example
Practical example when our container name is: auth-service-container.
We simply replace 'PUT_CONTAINER_NAME_HERE' with our container name: 'auth-service-container'.
docker exec -t -i auth-service-container /bin/sh
Output from command line:
[root@localhost ~]# docker exec -t -i auth-service-container /bin/sh
/ # ls -al
total 46116
drwxr-xr-x 1 root root 42 Oct 8 15:06 .
drwxr-xr-x 1 root root 42 Oct 8 15:06 ..
-rwxr-xr-x 1 root root 0 Oct 8 15:06 .dockerenv
drwxr-xr-x 2 root root 4096 May 9 2019 bin
drwxr-xr-x 5 root root 340 Oct 8 15:06 dev
drwxr-xr-x 1 root root 66 Oct 8 15:06 etc
drwxr-xr-x 2 root root 6 May 9 2019 home
drwxr-xr-x 1 root root 132 May 11 2019 lib
drwxr-xr-x 3 root root 17 Oct 8 15:06 log
drwxr-xr-x 5 root root 44 May 9 2019 media
drwxr-xr-x 2 root root 6 May 9 2019 mnt
drwxr-xr-x 2 root root 6 May 9 2019 opt
dr-xr-xr-x 210 root root 0 Oct 8 15:06 proc
drwx------ 1 root root 52 Oct 15 12:17 root
drwxr-xr-x 2 root root 6 May 9 2019 run
drwxr-xr-x 2 root root 4096 May 9 2019 sbin
drwxr-xr-x 2 root root 6 May 9 2019 srv
dr-xr-xr-x 13 root root 0 Oct 8 12:24 sys
drwxrwxrwt 5 root root 115 Oct 8 15:06 tmp
drwxr-xr-x 1 root root 81 May 11 2019 usr
drwxr-xr-x 1 root root 19 May 9 2019 var
/ # exit
[root@localhost ~]#
We can read more about docker exec program here: