used a simple disableTSDB flag to disable ingestion

Signed-off-by: Yash Sharma <[email protected]>

remove flag for ingestion mode, and decide internally

Signed-off-by: Yash Sharma <[email protected]>

moved grpc setup for both ingestion and distribution

Signed-off-by: Yash Sharma <[email protected]>

added an e2e test

Signed-off-by: Yash Sharma <[email protected]>

move dbs and writer outside scope

Signed-off-by: Yash Sharma <[email protected]>

test remove stray at /handler 467

Signed-off-by: Yash Sharma <[email protected]>

fixed a duplicate code in receiver.go

Signed-off-by: Yash Sharma <[email protected]>

removed stray line in handler

Signed-off-by: Yash Sharma <[email protected]>

added a e2e test for ingestion and distributor scenario

Signed-off-by: Yash Sharma <[email protected]>

uncommented other tests

Signed-off-by: Yash Sharma <[email protected]>

restored receiver to main branch implementation

Signed-off-by: Yash Sharma <[email protected]>

break down multiple logical parts of receiver into functions

Signed-off-by: Yash Sharma <[email protected]>