Add a on-demand type of receivers to enable scrape data as needed

[larryck]

Component(s)

No response

Is your feature request related to a problem? Please describe.

In my case, I cannot scrape data all the time due to storage cost and performance impact. I need a way to start/stop the receivers as needed.

Describe the solution you'd like

1 divide receivers into on-demand receivers and long-running receivers.
2 develop a configuration service which user can send start/stop data scrape requests to;
3 the collector starts on-demand receivers after getting startup requests and stop them similarly;
4 the data processing pipelines work unchanged.

Describe alternatives you've considered

No response

Additional context

No response

[github-actions]

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