docker-slim build error

[syswu]

my command is

./slim build --target rancher/mirrored-coredns-coredns:1.10.1

but the output:

cmd=build state=http.probe.starting message="WAIT FOR HTTP PROBE TO FINISH" 
cmd=build info=continue.after mode='probe' message='no input required, execution will resume when HTTP probing is completed' 
cmd=build prompt='waiting for the HTTP probe to finish'
cmd=build state=http.probe.running
cmd=build info=http.probe.ports count='1' targets='32797' 
cmd=build info=http.probe.commands count='1' commands='GET /' 
cmd=build info=http.probe.call target='http://127.0.0.1:32797/' attempt='1' error='Get "http://127.0.0.1:32797/": EOF' time='2024-05-12T13:08:42Z' status='error' method='GET' 
cmd=build info=http.probe.call status='error' method='GET' target='http://127.0.0.1:32797/' attempt='2' error='Get "http://127.0.0.1:32797/": EOF' time='2024-05-12T13:09:01Z' 
cmd=build info=http.probe.call status='error' method='GET' target='http://127.0.0.1:32797/' attempt='3' error='Get "http://127.0.0.1:32797/": EOF' time='2024-05-12T13:09:20Z' 
cmd=build info=http.probe.call attempt='4' error='Get "http://127.0.0.1:32797/": EOF' time='2024-05-12T13:09:39Z' status='error' method='GET' target='http://127.0.0.1:32797/' 
cmd=build info=http.probe.call status='error' method='GET' target='http://127.0.0.1:32797/' attempt='5' error='Get "http://127.0.0.1:32797/": EOF' time='2024-05-12T13:09:58Z' 
cmd=build info=http.probe.summary successful='0' total='5' failures='5' 
cmd=build state=http.probe.done warning=no.successful.calls 
cmd=build info=event message='HTTP probe is done' 
cmd=build error=probe.error message='no.successful.calls'
slim: container stdout:
.:53
CoreDNS-1.10.1
linux/amd64, go1.20, 055b2c3
slim: container stderr:
slim: end of container logs =============
cmd=build state=exited code=-1
cmd=build info=container.inspector.cleanup name='slimk_259262_20240512130829' id='63546fd13a8e1dc7c7341aa60b31923dc70acb6f31ccc413b6529cc8c536566a' 
cmd=build state=container.target.shutdown.start
cmd=build state=container.target.shutdown.done
cmd=build info=report file='slim.report.json' 
cmd=build info=exit code='-1' version='linux/amd64|Transformer|1.40.11-21-g04aa5141|04aa51412d9fd14bd0171b2461825ecbbfe91431|2024-05-12_12:20:44PM' location='/mnt/data/codes/slim/dist_linux' 
app='slim' message='GitHub Discussions' info='https://github.com/slimtoolkit/slim/discussions'
app='slim' message='Join the CNCF Slack channel to ask questions or to share your feedback' info='https://cloud-native.slack.com/archives/C059QP1RH1S'
app='slim' message='Join the Discord server to ask questions or to share your feedback' info='https://discord.gg/9tDyxYS'
app='slim' message='Join the Gitter channel to ask questions or to share your feedback' info='https://gitter.im/docker-slim/community'

could you help me to solve the problem?

[kcq]

The error means that the app tried to run HTTP probes against the exposed tcp port in the container and it didn't get any successful responses, so it exited. You can disable this behavior, so it doesn't fail when it gets no successful probe responses or you can disable http probing.

This is what it would look like when you disable http probing:

./slim build --http-probe=false --continue-after=3 rancher/mirrored-coredns-coredns:1.10.1

A couple of notes... Basic DNS probing will be available in the upcoming release, so there won't be a need to disable probing explicitly (i'll post a note when it's available). The image you are trying to minify is already very small (probably as small as it gets). The official CoreDNS image is 59.8MB and the Rancher CoreDNS image is 53.6MB. CoreDNS is Go binary and the base image they use is pretty minimal already. Minifying the official CoreDNS image gives you 57.4MB and minifying the Rancher CoreDNS images doesn't really change the size (you get 53.6MB).