Cloud functions with heavy dependencies

[Lance Jabr]

I'm building a web app with Firebase that involves video rendering. I currently have a node.js server running locally that processes rendering requests. I'm considering porting this to a Firebase cloud function, but it has a lot of dependencies like FFmpeg, Cairo, Pango, as well as a bunch of npm modules.

Does it make sense to build a function which installs these dependencies each time it runs? Is that even possible? Or does it make more sense to get a dedicated server on AWS or something so that I can manage the environment with more control?

Advice appreciated!

-Lance

[Hiranya Jayathilaka]

You can package all your dependencies and code as a container and deploy it on Cloud Run: https://cloud.google.com/run

That way you still run your code on-demand (paying for exact compute time), but without the overhead of repeatedly installing dependencies.

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Hiranya Jayathilaka | Software Engineer | h...@google.com | 650-203-0128

[Lance Jabr]

Thanks so much for the tip! I am new to web development so it means a lot to me.

Can you trigger Cloud Run from Firebase Database events? 

Thanks,

Lance

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[Sam Stern]

Hi Lance,

At the moment that's not possible, Cloud Run only has HTTP and PubSub triggers. But we do hope to bring more Firebase events to Cloud Run in the future. 

In the meantime you could maybe use a Cloud Function to catch the Database event and then send a PubSub to trigger Cloud Run. It's a bit convoluted but maybe still better than trying to squeeze heavy dependencies into Functions. 

- Sam

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