How can I configure a custom node stack-size in n8n Docker environments?

Below is some clarification based on the available documentation:

No Dedicated Environment Variable for Stack-Size

Currently, there isn’t a dedicated environment variable in n8n or in the Docker configuration options specifically for setting a custom stack-size when launching an n8n node.

Alternative: Using Node.js Runtime Options

If you need to pass custom Node.js runtime flags (including those that might affect memory or stack size), you can use the standard Node.js flag mechanism via the NODE_OPTIONS environment variable. For example, if Node.js supported a flag (e.g., hypothetically --stack-size=1024) you could pass it like this when using Docker:

YAMLCopied
n8n:
  environment:
    - NODE_OPTIONS="--stack-size=1024"

Or via the command line:

BASHCopied
docker run -it --rm \
  --name n8n \
  -p 5678:5678 \
  -e NODE_OPTIONS="--stack-size=1024" \
  docker.n8n.io/n8nio/n8n

Summary

• There is no update or specific environment variable in n8n documentation to configure a custom stack-size.
• To pass custom Node.js runtime options you can use NODE_OPTIONS, keeping in mind any custom flags must be valid for your Node.js version.

If you experiment with such configurations, please ensure extensive testing as they are external to the n8n-specific configuration options.