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Wellington Braga

03/15/2023, 1:36 PM
I'm running the prefect service (v.2.8.3) in a container and I'm getting this error when trying to access the web service from another domain. I found this issue reporting the same error but no solution. I've also tried setting the 
PREFECT_API_URL
variable to `0.0.0.0:4200/ap`i , but it's simply ignored. Is there any solution for this? issue: https://github.com/PrefectHQ/prefect/issues/5648
z

Zanie

03/15/2023, 2:03 PM
You need to set the 
--host
or https://docs.prefect.io/api-ref/prefect/settings/#prefect.settings.PREFECT_SERVER_API_HOST when starting the server.
w

Wellington Braga

03/15/2023, 2:15 PM
even passing the 
--host
flag or declaring the 
PREFECT_SERVER_API_HOST
setting to 
0.0.0.0
the error persists
z

Zanie

03/15/2023, 2:43 PM
The API URL should not be 
0.0.0.0
You’ll want that to be an actual URL that the API can be reached at from the UI user’s machine
w

Wellington Braga

03/15/2023, 2:48 PM
sure, but even changing to mydomain.com it returns: 
Can't connect to Server API at <http://127.0.0.1:4200/api>. Check that it's accessible from your machine.
apparently no variable is changing this value as anything I change keeps showing the IP 127.0.0.1
Remembering that I'm running the service inside a container
resolved by setting in Dockerfile 
ENV PREFECT_SERVER_API_HOST=<http://mydomain.com|mydomain.com>"
instead of directly inside the container 
prefect config PREFECT_SERVER_API_HOST="<http://mydomain.com|mydomain.com>"
✅ 1
z

Zanie

03/15/2023, 6:02 PM
PREFECT_UI_API_URL = Setting(
    str,
    default=None,
    value_callback=default_ui_api_url,
)
"""The connection url for communication from the UI to the API.
Defaults to `PREFECT_API_URL` if set. Otherwise, the default URL is generated from
`PREFECT_SERVER_API_HOST` and `PREFECT_SERVER_API_PORT`. If providing a custom value,
the aforementioned settings may be templated into the given string.
"""
:gratitude-thank-you: 1
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