Upgrading to 0.14.0 broke the openai_api_compatible model provider connection

[AugNSo]

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Dify version

0.14.0

Cloud or Self Hosted

Self Hosted (Docker)

Steps to reproduce

git pull
docker compose up -d

✔️ Expected Behavior

The previous version was 0.13.0 and the API worked.

❌ Actual Behavior

API Endpoint redacted for privacy.

[openai_api_compatible] Server Unavailable Error, HTTPConnectionPool(host='127.0.0.1', port=7890): Max retries exceeded with url: http://...:*/v1/chat/completions (Caused by ProxyError('Unable to connect to proxy', NewConnectionError('<urllib3.connection.HTTPConnection object at 0x79e63d47eab0>: Failed to establish a new connection: [Errno 111] Connection refused')))

[dosubot]

To resolve the "Server Unavailable Error" with the openai_api_compatible model provider connection after upgrading to Dify version 0.14.0 on a self-hosted Docker setup, you should ensure that the service is accessible from the Docker container. The error typically occurs because the Docker container cannot access the service using localhost. Instead, you should configure the service to use host.docker.internal to allow the Docker container to connect to the host machine's services.

Here's how you can configure it:

1. Replace localhost with host.docker.internal in your Dify configuration for the service:

   http://host.docker.internal:11434

This change allows the Docker container to access the service running on the host machine ^[1].

To continue talking to Dosu, mention @dosu.

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[crazywoola]

[openai_api_compatible] Server Unavailable Error, HTTPConnectionPool(host='127.0.0.1', port=7890): Max retries exceeded with url: http://...:*/v1/chat/completions (Caused by ProxyError('Unable to connect to proxy', NewConnectionError('<urllib3.connection.HTTPConnection object at 0x79e63d47eab0>: Failed to establish a new connection: [Errno 111] Connection refused')))

According to the url you provided, I don't think we support this if you use older version or not.

http://host.docker.internal:11434

Try this instead.

[AugNSo]

Pinpoint the problem to commit #11681, docker compose will read the system proxy env HTTP_PROXY and HTTPS_PROXY and in the case of HTTP_PROXY=127.0.0.1:7890, dify cannot access this endpoint. @crazywoola

Not sure what this fix is for but for people encountering the same problem, I think you can just comment out the 2 lines added if this fix is irrelevant to you or unset the system proxy env before docker compose.