This page describes the supported language runtimes and base images for deploying services or functions from source, and container images built on scratch .
Base images are composed of an operating system stack and a language runtime:
- A stack
is made up of a Linux distribution version
and system packages, such as OpenSSL and
curl. - A language runtime is the specific version of the programming language used by your application.
Cloud Run supports multiple language runtimes, each of which is available through container base images provided by Google Cloud's buildpacks . Language runtimes are supported only as long as they are supported by their respective open source communities.
It is the developer's responsibility to upgrade services to newer language runtimes before it reaches end of support. Refer to the Cloud Run runtime lifecycle for details.
The Cloud Run lifecycle policy does not apply to containers built outside of Cloud Run.
Using language runtimes
Cloud Run language runtimes are used for the following:
- Deploying functions and services
- Enabling automatic security updates
- As base images for building containers
Security and maintenance updates
Security and maintenance updates are available for generally available language runtimes. You can apply these updates automatically or manually depending on how you configure automatic security updates . Automatic security updates are enabled by default when deploying functions and services to Cloud Run.
How to obtain base images
Base images are hosted in every region where Artifact Registry is available .
There are three methods for specifying a base image:
-
RUNTIME_ID: Gives you the base image for the specified language using its default stack. The base image will be taken from a repository in the sameREGIONwhere your service is deployed. We recommend you specify theRUNTIME_IDfor most cases. -
STACK / RUNTIME_ID: An alias for the full base image path. The base image will be taken from a repository in the sameREGIONwhere your service is deployed. Use this option if you need a specific system package in the stack . -
REGION -docker.pkg.dev/serverless-runtimes/ STACK /runtimes/ RUNTIME_ID: The full base image path. Use this option if you want full control over the specific base image and the region where it's downloaded from.
For the three methods for specifying a base image, replace:
- REGION
with the preferred region, for example
europe-west1. - STACK
with the preferred operating system stack
, for example
google-24-full. - RUNTIME_ID
with the language runtime ID used by your function, for
example
nodejs24.
For example, to reference the full base image path for the latest Node.js
base image using the google-24-full
stack, hosted in europe-west1
,
use the following URL:
europe-west1-docker.pkg.dev/serverless-runtimes/google-24-full/runtimes/nodejs24
Node.js
Python
Go
Java
Ruby
PHP
| Runtime | Runtime ID | Stacks | Runtime base image | Deprecation | Decommission |
|---|---|---|---|---|---|
|
PHP 8.5
|
php85 | google-24-full (default) | google-24-full/php85 | 2029-12-31 | 2030-06-30 |
|
PHP 8.4
|
php84 | google-22-full (default) | google-22-full/php84 | 2028-12-31 | 2029-06-30 |
|
PHP 8.3
|
php83 | google-22-full (default) | google-22-full/php83 | 2027-12-31 | 2028-06-30 |
|
PHP 8.2
|
php82 | google-22-full (default) | google-22-full/php82 | 2026-12-31 | 2027-06-30 |
|
PHP 8.1
|
php81 | google-18-full | google-18-full/php81 | 2025-12-31 | 2026-06-30 |
|
PHP 7.4
|
php74 | google-18-full | google-18-full/php74 | 2024-01-30 | 2025-01-30 |
.NET
OS only
| Runtime | Runtime ID | Stacks | Runtime base image | Deprecation | Decommission |
|---|---|---|---|---|---|
|
OS only 24
|
osonly24 | google-24 (default) | google-24/osonly24 | April 30, 2029 |
