[SOLVED] How to set the volume size of aws ec2 for root volume in cloud formation template

Issue

How to I change the Disk size of the for the Root Disk volume in Cloud formation template

Solution

/dev/xvda is your root volume, so just add BlockDeviceMappng for it with the desired size.

Resources:
  EC2Instance:
    Type: AWS::EC2::Instance
    Properties:
      BlockDeviceMappings:
        # /root volume
        - DeviceName: /dev/xvda
          Ebs:
            DeleteOnTermination: true
            VolumeSize: 256
            VolumeType: gp2

Answered By - Anton