Permission issue inside my docker container GitHub Runner

[leahy268]

I am attempting to get docker to slim down my github actions runner.

When the GitHub actions runs it runs this code:
while :;
do
cp -f "$DIR"/run-helper.sh.template "$DIR"/run-helper.sh
"$DIR"/run-helper.sh $* &
PID=$!
wait -f $PID
returnCode=$?
if [[ $returnCode -eq 2 ]]; then
echo "Restarting runner..."
else
echo "Exiting runner..."
# Unregister signal handling before exit
trap - INT TERM
# wait for last parts to be logged
wait $PID
exit $returnCode
fi
done
}
Essentially this copies run-helper.sh.template to run-helper.sh

However when I run this using slim build it fails to cp the file.

I have ran this with the option --run-target-as-user --keep-perms as the runner is running under the user 'runner'. However this doesn't change the outcome.

Any thoughts?

[iximiuz]

Hi @leahy268! Thanks for the report!

Could you provide the complete slim build command that leads to that error and the actual output of the failed cp command?

[leahy268]

Hi, I'll have to go back and try again.
In the mean time I've given up and moved a different direction.

I can run the image locally without an issue and it connects to github as a runner. I can run everything I need to and it works without issue.

When running it through slimbuild I end up with an image 1/4 of the size but as the GitHub runner won't start it contains none of the things that I need in the image. In the next couple of days I'll try again and see if I can get you more details.

Thanks