supervisor: configurable opamp listener port range

[cforce]

Component(s)

cmd/opampsupervisor

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

In restricted environments with perimeter security, the firewall is preconfigured to allow specific ports or port ranges for designated users or processes. In this setup, it is essential that a service cannot choose ports on its own.

Instead, the configuration must be predetermined and statically assigned to the supervisor, with a dedicated network interface managing these settings.

Describe the solution you'd like

Configure the network interface and port range on which the opamp server will listen and setup the opamp cfg to connect to which is used by the collector.

Describe alternatives you've considered

No response

Additional context

No response

[github-actions]

Pinging code owners:

• cmd/opampsupervisor: @evan-bradley @atoulme @tigrannajaryan @BinaryFissionGames

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[dpaasman00]

I can take this on! I'll add a new parameter to the agent section of the supervisor config called opamp_server_port.

[dpaasman00]

This would run the supervisor's OpAMP server on localhost:<opamp_server_port>. Would this resolve your issue, or is there a use case to not use localhost?

[cforce]

It would be great if you can add the port . 👍
Ii will check next week if localhost is ok or a dedicated ip is needed. I assume as long not 0.0.0.0 (all) is used i think its fine, but i will check,