Port value resolves as the default port across shell invocations

[KitAmbraid]

Describe the bug
When using port allocation, the config.processes.xxx.ports.yyy.value value is correct only in the shell that starts the processes. Other shell invocations default to the ports.yyy.allocate value.

Misc information:

• env variables using those config values are pointing to the wrong port, except for other processes started in the same devenv up command
• postgres service port is affected as well (accessed through config.services.postgres.port), so other services using port allocation probably as well

To reproduce

{ pkgs, lib, config, inputs, ... }:

{
  processes = {
    first = {
      ports.http.allocate = 3000;
      exec = "sleep 100000";
    };
    second = {
      ports.http.allocate = 3000;
      exec = "sleep 100000";
    };
  };

  tasks."test:hello".exec = ''
    echo "first port: ${toString config.processes.first.ports.http.value} ; second port: ${toString config.processes.second.ports.http.value}";
  '';
}

kit@desktop ~/devenv-issue> devenv tasks run test:hello
✓ Configuring shell                                                                                                                                                                                 139ms
  └ ✓ Evaluating shell cached                                                                                                                                                                        51ms
✓ Loading tasks                                                                                                                                                                                      13ms
  └ ✓ Evaluating devenv.config.task.config cached                                                                                                                                                     0ms
✓ Running tasks                                                                                                                                                                                     139ms
  └ ✓ test:hello 1 lines → first port: 3000 ; second port: 3000                                                                                                                                     139ms
{}

Version
2.0.7 but truly 2.0.6 (✨ devenv 2.0.7 is newer than devenv input (2.0.6) in devenv.lock. Run 'devenv update' to sync.)

[antono]

Same problem with services.*.port. It seems these ports are dynamically allocated now but if you want to access service port from other task you'll always get default.

[domenkozar]

Relevant is #2684