Right now all things that the docker-worker inserts into the logs is prefixed as [taskcluster]. To make it easier to designate what's a normal logging statement and an error, we should added error/exception specific prefixes such as [taskcluster-error] and [taskcluster-exception].

Spoke with Jonas and it appears that what would allow us some flexibility in the future is if the taskcluster infrastructure and tools log things such as: [component:event] message This would translate into something like this for taskcluster infrastructure errors that docker-worker logs: [taskcluster:error] Error: Pulling docker image "taskcluster/tester:0.3.6" Or in the case of tool we develop: [taskcluster-vcs:error] Unable to extract tar archive If it's purely an informational message, then the event can be omitted and the log message could be: [component] message

Fixed https://github.com/taskcluster/docker-worker/commit/62286f02cb26d885c19ee0ffcb73ac678c36ff5b