amazon-archives/aws-lambda-container-image-converter

SAM Deployment?

j opened this issue · 4 comments

j commented

Is it possible to have this workflow be a part of SAM / Cloudformation?

clareliguori commented

Great question! I'm open to suggestions on how to fit this into the SAM / CloudFormation workflow. Currently I think you'd have to parse the layers.json output and get it into your CFN template somehow.

cc @sooddhruv @sanathkr

austoonz commented

When used with the "--dry-run" switch, this works really well in a SAM / CloudFormation workflow! By using that switch, the tool creates a .zip file for each of the Lambda Layers found, and these can be referenced in your SAM / CloudFormation templates.

Some examples to demonstrate... note these examples assume the img2lambda binary is embedded in the repository.

  1. Repository structure
<root>
│   buildspec.yml
│   template.yml
│
├───bin
│       img2lambda
│
└───custom-runtime
        bootstrap
        Dockerfile
  1. Sample CodeBuild buildspec.yml file.
version: 0.2

phases:
  build:
    commands:
      # Compile Docker Images
      - cd custom-runtime
      - docker build -t custom-runtime .

      # Perform img2lambda conversion
      - cd $CODEBUILD_SRC_DIR
      - sudo chmod +x ./bin/img2lambda
      - sudo ./bin/img2lambda --image custom-runtime:latest --dry-run

      # Publish the Custom Runtime
      - cd $CODEBUILD_SRC_DIR
      - aws cloudformation package --template-file template.yml --s3-bucket <s3bucketname> --output-template-file updated.yml
      - aws cloudformation deploy --template-file updated.yml --stack-name custom-runtime --region us-east-1
  1. Sample SAM / CloudFormation Template.
AWSTemplateFormatVersion: '2010-09-09'
Transform: 'AWS::Serverless-2016-10-31'
Description: A Lambda Custom Runtime
Resources:
  CustomRuntime:
    Type: AWS::Serverless::LayerVersion
    Properties:
      LayerName: custom-runtime
      Description: A Lambda custom runtime
      ContentUri: './output/layer-1.zip'
      RetentionPolicy: Retain
  SecondLayer:
    Type: AWS::Serverless::LayerVersion
    Properties:
      LayerName: custom-runtime-second-layer
      Description: The second layer for the custom runtime
      ContentUri: './output/layer-2.zip'
      RetentionPolicy: Retain
Outputs:
  CustomRuntimeArn:
    Value: !Ref CustomRuntime
    Description: Lambda Layer Arn for the Custom Runtime
  SecondLayerArn:
    Value: !Ref SecondLayer
    Description: The second Layer Arn for the Custom Runtime
  • 🎉1
viezel commented

maybe turn this into a new example in this repo?