ShelbySAM

ShelbySAM is a transformative npm package that streamlines SAM templates. Simplify your cloudformation journey with ShelbySAM's intuitive "construction" and "deconstruction" features, making cloud management a breeze.It effortlessly splits a complex YAML file into individual resource-specific files, fostering easy maintenance and scalability.

You can also seamlessly add new resources, Shelbysam dynamically fetches essential parameters from the CloudFormation registry. Plus you can clone or remove existing resources.

Installation

The NPM package is available here. Install the package globally using the following command.

npm install -g @antstackio/shelbysam

Configuration

shelbysam config

This creates the shelbysam-config.toml which is used to store the configurations. There are 4 parameters being stored

1. region - Sets the region of the deployment.
2. sam_template_file - The template file used for deploying the SAM Application. Defaults to template.yaml
3. shelbysam_template_file = The deconstructed template file name. Defaults to shelbysam.yaml
4. shelbysam_template_folder = The folder to store the deconstructed resources. Defaults to infra_resources

Deconstruct using ShelbySAM

shelbysam deconstruct

The deconstruct command takes an existing template (sam_template_file) file as input and deconstructs it onto the specified folder (shelbysam_template_folder). It will also create a deconstructed template file (shelbysam_template_file) file which will be used for further processing.

Flags

--template, -t : The template file to be deconstructed. Defaults to sam_template_file or template.yaml

--path, -p : The folder to store deconstructed resources. Defaults to shelbysam_template_folder or infra_resources

Both the flags are optional. If the flags are not specified ShelbySAM will pick up the information from the shelbysam-config.toml.

Construct using ShelbySAM

shelbysam construct

The construct command creates the final SAM template file from the ShelbySAM template file.

Flags

--itemplate, -i : Input template file. Defaults to shelbysam_template_file or shelbysam.yaml

--otemplate, -o : Output template file. Defaults to sam_template_file or template.yaml

Both the flags are optional. If the flags are not specified ShelbySAM will pick up the information from the shelbysam-config.toml.

Add Resource using ShelbySAM

The add command creates resource file with the respective template and adds it to the final template

Flags

--type, -t : The cloudformation type. eg : `AWS::Lambda::Function"

--lid, -i : The logical id for the new resource

Clone Resource using ShelbySAM

The clone command clones a resource in the existing template.

Flags

--slid, -s : The source logical id of the resource from shelbysam_template_file

--dlid, -d : The destination logical if of the resource to be created in shelbysam_template_file

--group, -g : If specified, ShelbySAM will clone all the resources in the group

Remove using ShelbySAM

The remove command creates resource file with the respective template and also removes it to the final template

Flags

--lid, -i : The logical id for the resource to be removed

Path References

• Resource1: "${file:./infra/resource1.yml}" - Direct file reference.
• Resource1: "${file:./infra/resource.yml:resource1}" - File reference with nested resources / Group Resources.