[modern.js SSR] How to update remote modules in a server environment without restarting the server

[seungjaey]

Background

We are configuring the following POC to apply module federation to our internal products.

Components

• shell: host application
• product-service: modern.js-based remote module
• sample-package: webpack-based remote module
• federation-manager: Remote module version management/resource serving server (mf-manager.example.com)
  • GET /api/packages/$remote_package_name/assets/static/[...args]
  • The URL is converted to the hash value of the latest version stored in the DB, then fetched from the server environment and provided.

EX> When requesting as follows
https://mf-manager.example.com/api/packages/sample-packag/asssets/staic/mf-manifest.json

- If the currently set hash value is 1.0.0

Convert to the following path, retrieve the resource, and return it
S3://static-resources/sample-package/1.0.0/static/mf-manifest.json

Note

This is a structure in which the path of mf-manifest.json or remoteEntry.js of the remote module does not change.

Issue details

If the remote module is changed, the SSR environment continues to look at the previous version of the remote module and updates are not possible.

What I tried

• Initialize global objects
  (__FEDERATION__, __GLOBAL_LOADING_REMOTE_ENTRY__, __VMOK__)
• Attempt to reload with performReload(true) of @module-federation/node
• clear require, __non_webpack_require__ cache

Question

In a structure where the path of the remote module does not change, is there a way to reload the currently set remote module without restarting the server when the remote module is changed?

[2heal1]

You can try registerRemotes with { force: true } option . It allow override registered remotes.

[zllkjc]

Additional, in Modern.js, this API might need to be exported from @module-federation/modern-js/runtime :)

[seungjaey]

I tried registerRemotes, but it still isn't updating. 😢

I've set up the repository to share so you can reproduce the issue.
(I have written the operating instructions in README.md.)

https://github.com/seungjaey/mf-poc