AWS::CloudFormation::Init 未安装软件包

Question

I'm trying to install a package when my EC2 instance initializes without success. CloudFormation doesn't throw any errors, but the package is not installed. What am I doing wrong?

Here is my template:

AWSTemplateFormatVersion: "2010-09-09"
Description: "MyCoolServer"
Resources:
  EC2Instance:
    Type: AWS::EC2::Instance
    Metadata:
      AWS::CloudFormation::Init:
        config:
          packages:
            apt:
              python: []
...

Answer 1

cfn-init function is now installed in your Ubuntu AMI. Then it doesn't execute.

cfn-helper utilities are automatically installed only in the latest Amazon Linux AMI.

More details follow this answer.