My dockerfile runs an entryscript that configures various system settings for the started container. The log output from the commands run in the entrypoint is captured by the host’s “main” service. I can see the that output if I go to the specific device on the https://dashboard.balena-cloud.com/devices/xxx.
Is there any ways of accessing that log info from inside the running container?
/ abaldur
If you install strace into your container, you can capture the output of your application using strace -p <PID> -e write=1,2 where <PID> is the pid of your application process. If you want to read these logs regularly it might be worth redirecting your application’s log output to a static file.
Thank you for the reply.
Whats the easiest way to get access to the application PID from inside the container?
/ abaldur
Hello @abaldur, you can get the PID of a given application with the command pidof <app name>.
Then with that information, you can run the strace.
Good luck 