有离线部署的方式吗？离线部署的时候发现前端页面打不开

[litingyy]

Describe the bug
A clear and concise description of what the bug is.

Browser and Version

• Browser [e.g. chrome, safari]
• Version [e.g. 22]

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Screenshots
If applicable, add screenshots to help explain your problem.

Additional context
Add any other context about the problem here.

[dosubot]

Hey @litingyy, great to see you back! Running into a bit of a snag with Langflow offline, huh? Let's see what we can do about that.

Based on the information you've provided, it seems like the issue might be related to the configuration of your environment variables, specifically VITE_PROXY_TARGET and BACKEND_URL. These variables should be set to match the actual accessible URLs of your backend services. In an offline deployment, these URLs might need to be adjusted to point to the correct local or internal network addresses where the backend services are accessible.

Here are some potential reasons why the frontend page might not be loading:

1. Service Discovery Issue: The backend hostname might not be resolvable in your network. Ensure that the hostname backend is correctly resolved to the IP address of the machine where the backend service is running. This might involve editing your /etc/hosts file or configuring your DNS server.

2. Backend Service Not Running: Verify that the backend service is actually running and accessible at the specified port (7860). You can check this by accessing https://backend:7860/api/ directly from a browser or using a tool like curl.

3. Network Configuration: If you're deploying in an environment with network restrictions (like Docker containers), ensure that the network is correctly configured to allow communication between the frontend and backend services. This might involve configuring Docker networks or adjusting firewall rules.

4. Incorrect Environment Variables: If you've copied the .env.example file to create your .env file, ensure that all environment variables, especially VITE_PROXY_TARGET and BACKEND_URL, are correctly set for your deployment environment. They should point to the actual URLs where the backend services can be accessed.

To debug and resolve the issue, you can:

• Check the network connectivity and resolve any hostname or IP address issues.
• Ensure the backend service is running and accessible at the specified URL.
• Review and adjust your deployment's network configuration to allow communication between services.
• Verify and correct the VITE_PROXY_TARGET and BACKEND_URL values in your .env file to reflect the actual accessible URLs of your backend services.

Regarding the specific requirements for the VITE_PROXY_TARGET and BACKEND_URL environment variables in the .env file for an offline deployment of Langflow:

1. VITE_PROXY_TARGET: This environment variable is used to determine the target address for the proxy configuration in the Vite server setup. It is used to proxy requests matching certain routes (apiRoutes) to a specified target. If VITE_PROXY_TARGET is not provided, it defaults to "https://127.0.0.1:7860". This means for an offline deployment, you should set VITE_PROXY_TARGET to the local address where your backend server is running, if it's not running on the default address.

2. BACKEND_URL: The provided context does not mention or use a BACKEND_URL environment variable. Therefore, based on the given context, there are no specific requirements for a BACKEND_URL environment variable in the .env file for the configuration of the Vite project. It's possible that BACKEND_URL might be used elsewhere in the application, but it's not referenced in the provided vite.config.ts file.

Unfortunately, I wasn't able to find specific steps to deploy Langflow offline within the repository. However, the general approach would involve setting up the backend services to run locally or within your internal network, configuring the environment variables as described above, and then starting the frontend service.

Lastly, please ensure that your environment meets the system requirements and dependencies as listed in the pyproject.toml file for a successful deployment. You can find the detailed list of dependencies and system requirements in the context provided above.

I hope this helps! If you have any more questions or need further clarification, feel free to ask.

Sources

• deploy/.env.example
• src/frontend/vite.config.ts
• pyproject.toml

About Dosu

This response is meant to be useful and save you time. It is not meant to be a precise solution, but rather a starting point for your own research.

Help me be more useful! Please leave a 👍 if this is helpful and 👎 if it is irrelevant.

If you want to continue the conversation, start your reply with @dosu-bot.

[188140040]

Yes, open the page https://127.0.0.1:7860 It is blank content, both JavaScript and CSS are loaded correctly. But it didn't show up

[anovazzi1]

Hello,

Sorry for the delay. Could you please provide a more detailed description of the problem you're encountering and the steps you're taking? This will help me understand the issue better and offer more accurate assistance.

Thank you.

---

您好，

抱歉回复晚了。您能否更详细地描述一下您遇到的问题以及您采取的步骤？这将有助于我更好地了解问题并提供更准确的帮助。

谢谢。

[carlosrcoelho]

Hi @litingyy

We hope you're doing well. Just a friendly reminder that if we do not hear back from you within the next 3 days, we will close this issue. If you need more time or further assistance, please let us know.


Thank you for your understanding!

[carlosrcoelho]

Thank you for your contribution! This issue will be closed. If you have any questions or encounter another problem, please open a new issue and we will be ready to assist you.