Receiver creator provides unsupported endpoint config field

[rmfitzpatrick]

Describe the bug
Not all receivers support endpoint and the receiver creator assumes this isn't the case. Adding it to the discovered config will lead to unmarshalling errors:

failed to start receiver	{"kind": "receiver", "name": "receiver_creator", "receiver": "prometheus", "error": "failed to load template config: error reading receivers configuration for \"prometheus\": prometheus receiver failed to parse config: 1 error(s) decoding:\n\n* '' has invalid keys: endpoint"}
github.com/open-telemetry/opentelemetry-collector-contrib/receiver/receivercreator.(*observerHandler).OnAdd

[rmfitzpatrick]

fwiw I will try to resolve this issue when next free.

[awx-fuyuanchu]

Any updates?

[CoderPoet]

I have this problem too

[matianjun1]

same for kafkametrics with receiver_creator

failed to start receiver	{"kind": "receiver", "name": "receiver_creator", "pipeline": "metrics", "receiver": "kafkametrics", "error": "failed to load template config: 1 error(s) decoding:\n\n* '' has invalid keys: endpoint"}

[github-actions]

This issue has been inactive for 60 days. It will be closed in 60 days if there is no activity. To ping code owners by adding a component label, see Adding Labels via Comments, or if you are unsure of which component this issue relates to, please ping @open-telemetry/collector-contrib-triagers. If this issue is still relevant, please ping the code owners or leave a comment explaining why it is still relevant. Otherwise, please close it.

[narmendariz]

@rmfitzpatrick able to circle back on this one soon?

[github-actions]

Pinging code owners for receiver/receivercreator: @rmfitzpatrick. See Adding Labels via Comments if you do not have permissions to add labels yourself.

[atoulme]

Closing as completed.