Post-image-update hook

This hook runs only when the runtime image reference changes. Use it for setup that is lost when the container image changes, such as packages installed into non-persisted system paths.

File path

Create this file:

/home/node/.agent37/hooks/post-image-update.sh

When to use it

This hook is useful when you want to:

reinstall system packages
restore tools that are not part of your persisted home directory
rerun one-time setup after a runtime update

Timeout

15 minutes

If the hook fails or times out, startup continues. The image ref is not marked as completed, so the hook retries on the next container start.

Example

#!/usr/bin/env bash
set -euo pipefail

sudo apt-get update
sudo apt-get install -y --no-install-recommends ffmpeg

Get started

Build with Agent37

Hosting API

Agent API

Reference

Post-image-update hook

File path

When to use it

Timeout

Example

​File path

​When to use it

​Timeout

​Example

File path

When to use it

Timeout

Example