Logs on Voroa: build logs and what your service prints
The difference between a build log and a runtime log, why each matters at a different moment, and how long logs are kept for a service running on Voroa.
What this covers
There are two kinds of log and they answer different questions. A build log covers everything from cloning your repository to finishing the build, and is where you look when a deploy never got as far as running. A runtime log is whatever your application prints while it is serving, and is where you look when the service is up but behaving wrongly. For runtime logs to be useful, your application has to print to standard output rather than to a file inside the container, because a file there is lost on the next deploy and nobody can read it in the meantime.
A single logging reference covering both kinds is not published in the Voroa docs today. Build logs and how long they are kept are covered below.