[Bug]: Custom Proxy Base Url not working

[DanielOtter]

What happened?

I was trying to deploy litellm with custom proxy base url settings but get requests of /sso and /ui do not append the base url and call the wrong urls. Since I am using a url map in my setup to redirect requests with different base urls to their respective services, these requests go to the void.

I followed the docs and built my image with a slightly edited Dockerfile:

# Use the provided base image
FROM ghcr.io/berriai/litellm:litellm_fwd_server_root_path-dev

# Set the working directory to /app
WORKDIR /app

# Install Node.js and npm (adjust version as needed)
RUN apt-get update && apt-get install -y nodejs npm

# Copy the UI source into the container
COPY ./ui/litellm-dashboard /app/ui/litellm-dashboard

# Set an environment variable for UI_BASE_PATH
# This can be overridden at build time
# set UI_BASE_PATH to "<your server root path>/ui"
ENV UI_BASE_PATH="/litellm/ui"

# Build the UI with the specified UI_BASE_PATH
WORKDIR /app/ui/litellm-dashboard
RUN npm install
RUN UI_BASE_PATH=$UI_BASE_PATH npm run build

# Create the destination directory
RUN mkdir -p /app/litellm/proxy/_experimental/out

# Move the built files to the appropriate location
# Assuming the build output is in ./out directory
RUN rm -rf /app/litellm/proxy/_experimental/out/* && \
    mv ./out/* /app/litellm/proxy/_experimental/out/

# Switch back to the main app directory
WORKDIR /app
RUN pip install prisma 
RUN prisma generate

RUN chmod +x entrypoint.sh

COPY config.yaml config.yaml

EXPOSE 8080/tcp

ENTRYPOINT ["litellm"]
CMD ["--port", "8080", "--config", "config.yaml"]

The environment variable of the running container is set to:
SERVER_ROOT_PATH="/litellm"

Relevant log output

[01/Oct/2024:13:18:29 +0000] "GET /ui/favicon.ico HTTP/1.1" 200 944 "https://placeholderdomain.com/litellm/ui/" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36"

Twitter / LinkedIn details

No response

[krrishdholakia]

cc: @ishaan-jaff - i think you have more context on custom base url's

[max0uuuu]

I think I have the same issue

[ma-armenta]

I noticed this too. By reading source code, python code has multiple locations where /ui is hardcoded as the dashboard ui path.

@ishaan-jaff, I can look into it.

[ishaan-jaff]

that would be great- can you add testing + tag me on the PR @ma-armenta

[DanielOtter]

Hi, has there been progress with this issue. Is there any way I can assist?

[Jflick58]

@DanielOtter can you provide more info for your build flow? I'm running into issues with this as reported in #7318

[DanielOtter]

Well, it has been a few months, but basically, like I have said, I followed the guide in the documentation and set the UI_BASE_PATH in my dockerfile. Then I created a docker image with it and ran it with the environment variable SERVER_ROOT_PATH. What specifically do you want to know about the build flow?

In one of my projects several generic paths are already in use like for example /ui, that is why I wanted to change the path. And that is how I noticed quickly that something was wrong, when traffic was not going through the right endpoints.

[DanielOtter]

@Jflick58 If you look at my Dockerfile in my description of the issue the documentation then mentioned a specific base image: ghcr.io/berriai/litellm:litellm_fwd_server_root_path-dev. I have seen your issue, maybe the silent change to the main image introduced this bug.

[Jflick58]

Do you know what version you built off of?

[DanielOtter]

ghcr.io/berriai/litellm:litellm_fwd_server_root_path-dev refers to version 1.40.3 I think, while the actual version I was trying to build was 1.48.x.

[krrishdholakia]

i think i'm able to repro this

[krrishdholakia]

Screen.Recording.2025-02-04.at.3.11.15.PM.mov

Fixed a small bug in the redirect - this now works for me. Will try and get this out by EOD. If someone (@Jflick58 / @DanielOtter / @ma-armenta ) can help confirm this works, that would be great!