aws cloudformation validate-template

Validates a specified template. AWS CLI reference

1 example 2 options Its page in the AWS CLI reference

Examples

from aws-cli, each command read by CmdID

To validate an AWS CloudFormation template

The following validate-template example validates the sampletemplate.json template.

aws cloudformation validate-template --template-body file://sampletemplate.jsonIdentify

--template-bodyStructure that contains the template body with a minimum length of 1 byte and a maximum length of 51,200 bytes.

Contents of sampletemplate.json:

{
    "AWSTemplateFormatVersion": "2010-09-09",
    "Description": "AWS CloudFormation Sample Template S3_Bucket: Sample template showing how to create an S3 bucket. **WARNING** This template creates an S3 bucket. You will be billed for the AWS resources used if you create a stack from this template.",
    "Resources": {
        "S3Bucket": {
            "Type": "AWS::S3::Bucket",
            "DeletionPolicy": "Retain"
        }
    },
    "Outputs": {
        "BucketName": {
            "Value": {
                "Ref": "S3Bucket"
            },
            "Description": "Name of the sample Amazon S3 bucket."
        }
    }
}

Its output

{
    "Description": "AWS CloudFormation Sample Template S3_Bucket: Sample template showing how to create an S3 bucket. **WARNING** This template creates an S3 bucket. You will be billed for the AWS resources used if you create a stack from this template.",
    "Parameters": [],
    "Capabilities": []
}

For more information, see Working with CloudFormation templates in the AWS CloudFormation User Guide.

Options

2 in the AWS CLI reference

--template-bodyStructure that contains the template body with a minimum length of 1 byte and a maximum length of 51,200 bytes.

--template-urlThe URL of a file that contains the template body.