Setting empty string for `PREFECT_ORION_API_PORT` does not work

[liqwid]

First check

• [X] I added a descriptive title to this issue.
• [X] I used the GitHub search to find a similar issue and didn't find it.
• [X] I searched the Prefect documentation for this issue.
• [X] I checked that this issue is related to Prefect and not one of its dependencies.

Bug summary

PREFECT_ORION_API_PORT should be allowed to be empty to query API at just the host.

Use case is quite common and basic: Our on-prem prefect is deployed at prefect.example.com and we need to be able to access API at http://prefect.example.com/api (ideally option to turn on SSL for API is also required)

Should be a simple fix and will cover one of the most obvious use cases

Reproduction

Set PREFECT_ORION_API_PORT to ''

Error

Traceback (most recent call last):
  File "/usr/local/bin/prefect", line 5, in <module>
    from prefect.cli import app
  File "/usr/local/lib/python3.10/site-packages/prefect/__init__.py", line 26, in <module>
    from prefect.flows import flow, Flow
  File "/usr/local/lib/python3.10/site-packages/prefect/flows.py", line 36, in <module>
    from prefect.context import PrefectObjectRegistry, registry_from_script
  File "/usr/local/lib/python3.10/site-packages/prefect/context.py", line 522, in <module>
    GLOBAL_SETTINGS_CONTEXT: SettingsContext = root_settings_context()
  File "/usr/local/lib/python3.10/site-packages/prefect/context.py", line 487, in root_settings_context
    profiles = prefect.settings.load_profiles()
  File "/usr/local/lib/python3.10/site-packages/prefect/settings.py", line 1075, in load_profiles
    user_profiles_path = PREFECT_PROFILES_PATH.value()
  File "/usr/local/lib/python3.10/site-packages/prefect/settings.py", line 107, in value
    return self.value_from(get_current_settings())
  File "/usr/local/lib/python3.10/site-packages/prefect/settings.py", line 761, in get_current_settings
    return get_settings_from_env()
  File "/usr/local/lib/python3.10/site-packages/prefect/settings.py", line 777, in get_settings_from_env
    _FROM_ENV_CACHE[cache_key] = Settings()
  File "pydantic/env_settings.py", line 39, in pydantic.env_settings.BaseSettings.__init__
  File "pydantic/main.py", line 342, in pydantic.main.BaseModel.__init__
pydantic.error_wrappers.ValidationError: 1 validation error for Settings
PREFECT_ORION_API_PORT
  value is not a valid integer (type=type_error.integer)

Versions

0.5.1

Additional context

No response

[bunchesofdonald]

Hi @liqwid! Under the hood Prefect still needs a port to connect, so I don't believe that making it nullable is the right approach. Have you tried setting it to the default http port of 80? I believe that would solve your use case.

[github-actions[bot]]

This issue was closed because it has been stale for 14 days with no activity. If this issue is important or you have more to add feel free to re-open it.