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ljacobsson authored Mar 5, 2021
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Expand Up @@ -4,11 +4,11 @@ Extract a subset of a CloudFromation template for quick deployments for i.e inte

**This is work in progress and may contain bugs**

![flow](images/flow.gif)
![flow](https://raw.githubusercontent.com/mhlabs/cfn-subset/main/images/flow.gif)

### Usage

When working on large CloudFormation templates it's likely that you will only be interested in a small subset of resources. This tool will extract these into a smaller deployable template which you can work on and, when happy, merge back in to the main template.

### SAM integration
If your project has a samconfig.toml file, a copy of that will be created with the stack_name parameter chnaged to `sub--<stackname>-<random adjective>-<random noun>`. This is so you can deploy your substack alongside the original stack without interfering with what's already deployed. A prerequisite is that you don't implicitly name any resources as there will be naming clash
If your project has a samconfig.toml file, a copy of that will be created with the stack_name parameter chnaged to `sub--<stackname>-<random adjective>-<random noun>`. This is so you can deploy your substack alongside the original stack without interfering with what's already deployed. A prerequisite is that you don't implicitly name any resources as there will be naming clash

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