Option to add custom tags like pod.Labels: We make use of labels to identify resources belonging to applications and/or teams. It would be really useful to have those as tags in sentry to filter by them. So I would propose adding labels as tags.
Option to set SampleRate: We should have option to specify SampleRate.
Option to set Event Message: This helps in grouping.
To fulfil my requirements i made changes by forking this repo: master...rajesh-dhakad:sentry-kubernetes:master
But if we can include this in parent repo would be great help.