add jobImagePullSecrets (#472)

* add jobImagePullSecrets to be used for the job pods for pulling the image

* fix golangci-lint

helm docs

add helm chart readme

add cron expression to version metric

Update controller.go (#233)

add custom logger for cotroller file operations

Add option to save pod container logs (#232)

* add logic go get pod container logs

* split into files

* save files in controller

* refactor method

get IP from env via Downward API

use podIP if service name is empty

add possibility to use pod IP for callback