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raise warning if PUBLIC_HOST is not set

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Kafonek, Matt
2021-04-07 18:18:02 +00:00
parent a55ccce64e
commit a23bfd1769
1 changed files with 28 additions and 13 deletions
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41
examples/service-fastapi/jupyterhub_config.py
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@@ -1,16 +1,31 @@
import os import os
import warnings
service = { # When Swagger performs OAuth2 in the browser, it will set
"name": "fastapi", # the request host + relative path as the redirect uri, causing a
"url": "http://127.0.0.1:10202", # uri mismatch if the oauth_redirect_uri is just the relative path
"command": ["uvicorn", "app:app", "--port", "10202"], # is set in the c.JupyterHub.services entry (as per default).
} # Therefore need to know the request host ahead of time.
# If running behind a proxy, or in Docker / Kubernetes infrastructure, if "PUBLIC_HOST" not in os.environ:
# you probably need to set a different public Hub host than the msg = (
# internal JUPYTERHUB_API_URL host "env PUBLIC_HOST is not set, defaulting to http://127.0.0.1:8000. "
if "PUBLIC_HOST" in os.environ: "This can cause problems with OAuth. "
public_host = os.environ["PUBLIC_HOST"] "Set PUBLIC_HOST to your public (browser accessible) host."
service["oauth_redirect_uri"] = f"{public_host}/services/fastapi/oauth_callback" )
service["environment"] = {"PUBLIC_HOST": public_host} warnings.warn(msg)
public_host = "http://127.0.0.1:8000"
else:
public_host = os.environ["PUBLIC_HOST"].rstrip('/')
service_name = "fastapi"
oauth_redirect_uri = f"{public_host}/services/{service_name}/oauth_callback"
c.JupyterHub.services = [service] c.JupyterHub.services = [
{
"name": service_name,
"url": "http://127.0.0.1:10202",
"command": ["uvicorn", "app:app", "--port", "10202"],
"admin": True,
"oauth_redirect_uri": oauth_redirect_uri,
"environment": {"PUBLIC_HOST": public_host},
}
]