Upgrading Google Cloud Functions to New Runtimes via Batch Processing

[GudditiN]

I'm looking for a way to upgrade all of my Google Cloud Functions to a new runtime in one go. Currently, I have multiple Cloud Functions running in different runtimes, and I want to streamline the process of upgrading them to a newer runtime version.

Current Setup:

• I have several Google Cloud Functions deployed in various runtimes, such as Node.js 12, Node.js 14, and Node.js 18.
• These functions are critical to my application and are deployed across different projects and regions within Google Cloud Platform (GCP).

Goal:

• Upgrade all existing Cloud Functions to a new runtime, such as Node.js 20 to leverage the latest features and optimizations.

My expectation is to migrate all cloud functions to a new runtime simultaneously, akin to a batch process. I'm curious if there's a typed service available in GCP for this purpose or any alternative processes or scripts that could accomplish the same goal.

[juliadeanne]

Hello @GudditiN,

Welcome to the Google Cloud Community!

GCP doesn't have a built-in service for updating runtimes across multiple functions, projects, or regions all at once.

However, you can manually upgrade by scripting. This process requires looping through your Cloud Functions and redeploying them with the updated runtime.

You can use the `gcloud functions list` command to view details about your functions, such as project, region, and current runtime.

You can then write a script to change the runtime for each function and redeploy it with the new version.

Keep in mind to test your updates and check for compatibility issues and necessary code modifications.

Also, ensure you have backups or a rollback plan ready in case the updates cause any issues.