# netlab: Applying Simple Configuration Changes

DevFeed: [netlab: Applying Simple Configuration Changes](<https://devfeed.tech/articles/netlab-applying-simple-configuration-changes-11264.md>)

Original publisher: [Read original article](<https://blog.ipspace.net/2025/10/netlab-simple-configuration-changes/>)

Published: 2025-10-02T08:19:00Z

Content type: tutorial

Language: en

Sources: [ipSpace.net blog](<https://devfeed.tech/sources/ipspace-net-blog.md>)

Topics: [configuration](<https://devfeed.tech/topics/configuration.md>), [BGP](<https://devfeed.tech/topics/bgp.md>), [YAML](<https://devfeed.tech/topics/yaml.md>)

Tags: [bgp](<https://devfeed.tech/tags/bgp.md>), [commands](<https://devfeed.tech/tags/commands.md>), [config](<https://devfeed.tech/tags/config.md>), [configuration](<https://devfeed.tech/tags/configuration.md>), [files](<https://devfeed.tech/tags/files.md>), [netlab](<https://devfeed.tech/tags/netlab.md>), [yaml](<https://devfeed.tech/tags/yaml.md>)

## AI overview

This tutorial explains how netlab release 25.09 simplifies small device configuration changes through the files plugin and inline config functionality. Using a BGP example, it shows how to add an extra command to an edge router and describes the behind-the-scenes file and template handling.

## Source excerpt

For years, netlab has had custom configuration templates that can be used to deploy custom configurations onto lab devices. The custom configuration templates can be Jinja2 templates, and you can create different templates (for the same functionality) for different platforms. However, using that functionality if you need an extra command or two makes approximately as much sense as using a Kubernetes cluster to deploy a BusyBox container. netlab release 25.09 solves that problem with the files plugin and the inline config functionality. Read more ...