Ref values break the generation of cloudformation

[wenisman]

Describe the bug Currently basic support for !Ref isnt working. Whilst trying to parse in a single parameter the compiled output will have no Resources

To Reproduce Steps to reproduce the behavior:

1. create a basic vpc.yaml

   AWSTemplateFormatVersion: 2010-09-09
   Description: The base VPC
   Parameters:
   CidrBlock:
   Description: The range of IPs for the VPC
   Type: String
   Resources:
   Vpc:
   Type: AWS::EC2::VPC
   Properties:
     CidrBlock: !Ref CidrBlock

2. Run Generate

   > kombustion upsert  --param CidrBlock=10.0.0.0/16 stacks/vpc.yaml

Current behaviour:

AWSTemplateFormatVersion: "2010-09-09"
Description: The base VPC for the ECS cluster
Parameters:
  CidrBlock:
    Description: The range of IPs for the VPC
    Type: String
Resources: {}

Expected behavior A basic cloudformation with the reference value populated should be created.

Screenshots NA

Desktop (please complete the following information):

• macOS High Sierra
• Version 0.3.6

[ojkelly]

Hey @wenisman,

Thanks for the detailed report. This sounds like it might be related to #113, which nearly has a fix. I'll try and reproduce after that fix is merged.

[wenisman]

Thanks @ojkelly ill have a read through the code and see whats happening.

113 looks like it has to do with incorrect outputs being generated. I got around that by just disabling default outputs. I was getting both subnet and vpc failures when i had default outputs enabled