How to restart my Docker container? - docker

Question

This is what ps -a gives us
NAMES
4514ea1b7b22 debian "--name gallant_spen…" 9 minutes ago Created peaceful_engelbart
df9bd2731a2b debian "--name gallant_spen…" 9 minutes ago Created happy_hodgkin
dd5b1f1b39ec redis "docker-entrypoint.s…" 32 minutes ago Up 31 minutes 6379/tcp myred
ffd6ef9d8bd5 redis "docker-entrypoint.s…" 32 minutes ago Exited (127) 32 minutes ago festive_jennings
9d01d321adad redis "docker-entrypoint.s…" 33 minutes ago Exited (0) 32 minutes ago agitated_shannon
eb7c13e7cdee debian "ls /data" 2 days ago Exited (0) 9 seconds ago gallant_spence
8991a31b1e38 debian "ls /data" 2 days ago Exited (0) 2 days ago determined_minsky
I have tried in this manner
docker start `docker ps -q -l` gallant_spence
But error ocurrs
Error response from daemon: OCI runtime create failed: container_linux.go:348: starting container process caused "exec: \"--name\": executable file not found in $PATH": unknown
gallant_spence
Error: failed to start containers: 4514ea1b7b22
I am interested in data volume that has been mounted in my previous work on this container
"Mounts": [
{
"Type": "bind",
"Source": "/home/mm/code/lesson_04",
"Destination": "/data",
"Mode": "",
"RW": true,
"Propagation": "rprivate"
}
],
If I try
mm#6830s:~$ docker start -ai gallant_spence
one_sample.py
parallel_series.py
Python files are added to data folder so I thought that it worked.Then I try again
docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
dd5b1f1b39ec redis "docker-entrypoint.s…" About an hour ago Up About an hour 6379/tcp myred
Hot to fix this?

Answer 1

You start a stopped container with
docker start [OPTIONS] CONTAINER [CONTAINER...]
For your case, you can use:
docker start gallant_spence or
docker start eb7c13e7cdee
As it is shown by the docker ps -a result, your container is configured with this CMD:
"ls /data"
This means that every time you start your container, this command will run and the container will then exit. This is how containers work. When their primary process finishes, they exit.
About the error you get and docker ps -q -l:
-q (from "quiet") tells the command to only print the container IDs
-l (from "last") tells the command to print the latest created container
This means that the above command brings you back: 4514ea1b7b22. If we put together all things...
your command:
docker start `docker ps -q -l` gallant_spence
turns to:
docker start 4514ea1b7b22 gallant_spence
The fail message you get is for 4514ea1b7b22 because it doesn't have a CMD set properly to start. I see something like: --name gallant_spen…