Docker save: No such image-CodePudding

When i run docker save nifi > nifi_backup.tar i get

Error response from daemon: No such image: nifi

When i run docker ps -a i got

$docker ps -a
CONTAINER ID   IMAGE               COMMAND                  CREATED         STATUS                      PORTS                                       NAMES
a8796cbf6cb1   apache/nifi:1.9.2   "../scripts/start.sh"    11 months ago   Exited (0) 33 minutes ago                                               nifi
f4ecf6ca0d16   apache/nifi         "../scripts/start.sh"    12 months ago   Exited (0) 12 months ago                                                nervous_poincare
9a68c235bb3a   apache/nifi         "../scripts/start.sh"    12 months ago   Exited (0) 12 months ago                                                jolly_mendel
d608287fe560   superset_superset   "/entrypoint.sh"         2 years ago     Up 27 hours (healthy)       0.0.0.0:8088->8088/tcp, :::8088->8088/tcp   superset_superset_1
fcea620b1983   postgres:10         "docker-entrypoint.s…"   2 years ago     Up 27 hours                 0.0.0.0:5433->5432/tcp, :::5433->5432/tcp   superset_postgres_1
380782e0a024   redis:3.2           "docker-entrypoint.s…"   2 years ago     Up 27 hours                 0.0.0.0:6379->6379/tcp, :::6379->6379/tcp   superset_redis_1

Also, i cant start nifi image

if i run docker start nifi

it try to start about a minute, but then stop silently.

And there is no logs in result.

docker events says exit code = 0:

Maybe it has some relation for unavailable saving, so i inform about it too.

How to fix No such image in such a case?

CodePudding user response：

As per documentation here, docker save command expects an image name, not a container. You're probably looking for docker export (export docs) command to achieve what you want.

The error about starting your container could be container-specific. As it exited already a year ago, maybe data is lost and the container cannot be started again. Using command docker events&, you can start the docker event listener in the background. This way you can obtain the hex value of this very start attempt and use it to search specific logs: docker logs <startId hex>. Maybe it can tell you more details about why the container did not properly start.

CodePudding user response：

Use the command docker images to see if there is an image named nifi. If not first build that image and than execute the command:

docker save nifi > nifi_backup.tar

It should not show the error No such image: nifi if the command docker images has an image named nifi.