CFN-step-by-step-go

This is a go implementation of the Writing an AWS CloudFormation Resource Provider in Python: Step by Step, but translated to Go. I've not got the thing running far enough to tell if my translation is correct, but it compiles, which is the first step :-D

Installation

Follow Setting up your environment for developing extensions to setup your extension development environment.

Configuration

Generate the requisite files:

cfn generate

Create an event thus (if necessary, export your AWS environment variables - either AWS_PROFILE or AWS_ACCESS_KEY_ID/AWS_SECRET_KEY - to setup the correct account access):

./mybin/create_test_events.sh CREATE ./example_inputs/create.json >events/create.json

I am stuck at the sam local invoke TestEntrypoint --event events/create.json step:

(cfn-go) bash-5.0$ sam local invoke TestEntrypoint --event events/create.json 
Invoking handler (go1.x)
Skip pulling image and use local one: amazon/aws-sam-cli-emulation-image-go1.x:rapid-1.20.0.

Mounting /Users/tobyferguson/Development/CFN-step-by-step-go/bin/ as /var/task:ro,delegated inside runtime container
START RequestId: 72d0544c-7286-4421-8f86-9ae6ced76b63 Version: $LATEST
2021/03/09 04:17:39 Handler starting
2021/03/09 04:17:39 Handler received the CREATE action
Validation: Failed Validation
caused by: BearerToken: zero value, Region: zero value: baseError
null
END RequestId: 72d0544c-7286-4421-8f86-9ae6ced76b63
REPORT RequestId: 72d0544c-7286-4421-8f86-9ae6ced76b63	Init Duration: 0.37 ms	Duration: 191.97 ms	Billed Duration: 200 ms	Memory Size: 256 MB	Max Memory Used: 256 MB	
{"errorMessage":"Validation: Failed Validation\ncaused by: BearerToken: zero value, Region: zero value","errorType":"baseError"}

The zero valued BearerToken is completely unexpected. I've seen nothing about this in the SAM documentation regarding test events.

MyCorp::EC2::Keypair

Congratulations on starting development!

Next steps:

Populate the JSON schema describing your resource, mycorp-ec2-keypair.json
The RPDK will automatically generate the correct resource model from the schema whenever the project is built via Make. You can also do this manually with the following command: cfn-cli generate
Implement your resource handlers by adding code to provision your resources in your resource handler's methods.

Please don't modify files model.go and main.go, as they will be automatically overwritten.

isabella232 / cfn-step-by-step-go Goto Github PK