Description

• Define generic ways to handle interrupts in order to perform gracefull shutdown.
  sources:
  https://github.com/GoogleCloudPlatform/golang-samples/blob/main/run/sigterm-handler/main.go
  https://www.rudderstack.com/blog/implementing-graceful-shutdown-in-go/
  https://emretanriverdi.medium.com/graceful-shutdown-in-go-c106fe1a99d9
  https://www.developer.com/languages/os-signals-go/
  https://gobyexample.com/signals

Test Coverage

• This change is covered by existing or additional automated tests.
• Manual testing has been performed (and evidence provided) as automated testing was not feasible.
• Additional tests are not required for this change (e.g. documentation update).