CDK App deployer - Link

TL;DR

As a workshop studio writer I run

npx cdk-standalone-deployer setup-workshop --workshop-id 12345678-aabb-a12a-1234-1234567890 --cdk-project-path ./myCdkApp

As a blog post writer I run

npx cdk-standalone-deployer --github-repo-name <YOUR GITHUB ALIAS>/<YOUR REPO NAME>  --github-repo-branch <GITHUB BRANCH> --cdk-project-path <CDK PROJECT PATH> --public-read --install-command "npm install" --build-command "npm run build"

=>

What is it ?

This Command Line Interface (CLI) enables to easily create click to deploy link of an AWS CDK app code hosted on Github such as:

If you follow this link, it will deploy the example contains in the aws-samples/aws-cdk-examples repo typescript/lambda-layer folder (which consist of a simple Lambda layer CDK app) into your AWS account.

The CLI will take your CDK app repository name and public S3 bucket to publish the Deployer stack to. It will then synthesize and publish the template with the right configuration without any modification of your code.

This tool is leveraging the CDKStandaloneDeployer construct which will create a Cloud Formation template starting an AWS Code Build project which will run a cdk bootstrap and cdk deploy from the given source (being either a zip in an S3 bucket or a github repository). For details about the available properties, please refer to the CDKStandaloneDeployer construct API documentation.

Getting started example

Assuming you are the owner of the aws-samples/aws-cdk-examples and you want to create a click to deploy link, you just have to run the following command:

npx cdk-standalone-deployer --github-repo-name aws-samples/aws-cdk-examples --cdk-project-path typescript/lambda-layer --github-repo-branch master --public-read --install-command "npm install" --build-command "npm run build"

Check access permissions ...
Access granted !
Generating the deployer stack ...
Generating deployer for https://github.com/aws-samples/aws-cdk-examples/tree/master/typescript/lambda-layer CDK app ...
CDK Deployer CloudFormation template generated. Uploading it to S3 ...
Uploading CDK Deployer CloudFormation template to S3 bucket cdk-depl-aws-samples-aws-cdk-examples-master-9xf/cdk-standalone-deployer-cfn-template.json ...
You can now add the following markdown to your README.md : [![click-to-deploy](https://img.shields.io/badge/Click%20to-CDK%20Deploy-blue)](https://console.aws.amazon.com/cloudformation/home#/stacks/new?stackName=cdkDeployer&templateURL=https://cdk-depl-aws-samples-aws-cdk-examples-master-9xf.s3.amazonaws.com/cdk-standalone-deployer-cfn-template.json)

The CLI will

1. Check your AWS credentials
2. Generate the CDK Deployer CloudFormation template
3. Upload it to the S3 bucket cdk-depl-aws-samples-aws-cdk-examples-master-9xf
4. Print the markdown to add to your README.md

Your customer can then just click on the link and deploy your CDK app in their AWS account.

Usage

Prerequisite

You need to have AWS credentials exported in your environment. You can do so by running aws configure or by exporting the following environment variables:

export AWS_ACCESS_KEY_ID=XXXX
export AWS_SECRET_ACCESS_KEY=XXXX
export AWS_SESSION_TOKEN=XXXX

A minimal set of permissions has to be associated with your credentials to be able to:

• Create an S3 bucket (if bucket not provided)
• Put an object to the S3 bucket
• Get caller identity (to check crendentials validity)

The following policy will do the trick:

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "CDKDeployerCLIPermissions",
            "Effect": "Allow",
            "Action": [
                "s3:PutObject",
                "s3:CreateBucket",
                "sts:GetCallerIdentity",
            ],
            "Resource": "*"
        }
    ]
}

All options

npx cdk-standalone-deployer generate-link --help

Usage: cli [options]

A simple tool to make your CDK app deployable through a click to deploy button. 
 
 Prerequisite : Export AWS credentials !

Options:
  --github-repo-name <string>        Name of the repo example: "aws-samples/aws-cdk-examples"
  --s3-bucket-name <string>          S3 bucket to use to upload the CDK Deployer stack and potentially the zip file. If not provided, one will be created for you after approval.
  --s3-key-prefix <string>           S3 key prefix to use to upload the CDK Deployer stack and potentially the zip file
  --s3-bucket-region <string>        S3 bucket region to use to upload the CDK Deployer stack and potentially the zip file (default: "us-east-1")
  --public-read                      Make the S3 bucket public read (default: false)
  --github-repo-branch <string>      Branch to use (default: "main")
  --cdk-project-path <string>        Path to the cdk app (default: "./")
  --stack-name <string>              Name of the stack to deploy
  --enable-docker                    Enable building Docker images when deploying the CDK stacks
  --deploy-buildspec-name <string>   Name of the buildspec available in the cdk app to deploy the stack. (Required if --destroy-buildspec-name is provided)
  --destroy-buildspec-name <string>  Name of the buildspec available in the cdk app to destroy the stack. (Required if --deploy-buildspec-name is provided)
  --install-command <string>         Command to run to install dependencies
  --build-command <string>           Command to run to build the cdk app
  --bootstrap-command <string>       Command to run to build the cdk app (default: "npx cdk bootstrap --qualifier $CDK_QUALIFIER --toolkit-stack-name CDKToolkit-$CDK_QUALIFIER")
  --deploy-command <string>          Command to run to deploy the cdk app (default: "npx cdk deploy $PARAMETERS --all --require-approval never -c @aws-cdk/core:bootstrapQualifier=$CDK_QUALIFIER")
  --destroy-command <string>         Command to run to destroy the cdk app (default: "npx cdk destroy --all --force -c @aws-cdk/core:bootstrapQualifier=$CDK_QUALIFIER")
  --cdk-qualifier <string>           CDK qualifier to use (default: "deployer")
  --cdk-parameters [pair...]         add an entry (or several separated by a space) key=value that will be passed to the cdk app through context (--context)

BuildSpec focus

As mentionned before the CDKStandaloneDeployer construct rely on AWS CodeBuild. It provides default install/build/bootstrap/deploy/destroy command but you can as well specify your own.

To do so, you have 2 options:

• if you have a deploy and destroy buildspec yaml file already existing in your CDK app repository, you can use them by specify --deploy-buildspec-name and --destroy-buildspec-name options.
• Or you an specify the install/build/bootstrap/deploy/destroy command using --install-command, --build-command, --bootstrap-command, --deploy-command and --destroy-command. Only --install-command is required then.

CDK parameters

You can also pass parameters to your CDK app through context using the --cdk-parameters option. It takes a list of key=value pair separated by a space. Those parameters will be then customizable by the user when deploying the stack through the AWS CloudFormation Console.

Architecture

CDK App deployer - Workshop Studio

TL;DR

npx cdk-standalone-deployer setup-workshop --workshop-id 12345678-aabb-a12a-1234-1234567890 --cdk-project-path ./myCdkApp

=> CDK App automatically deployed in your Workshop Studio attendees AWS account

What is it ?

**This Command Line Interface (CLI) eases the deployment of CDK app for Wokshop studio accounts provisionning.

This is tipically used by Workshop editor that want to pre provision resources in teams accounts for events and want to use CDK to create this initial infrastructure.**

This tool is leveraging the CDKStandaloneDeployer construct which will create a Cloud Formation template starting an AWS Code Build project which will run a cdk bootstrap and cdk deploy from the given source (automatically zipped from the cdk app path provided). For details about the available properties, please refer to the CDKStandaloneDeployer construct API documentation.

Getting started example

Assuming you have a workshop repo locally cloned:

tfc-analytics-ara-demo on  mainline [!] on ☁️  (us-east-1) took 25s 
❯ ls
README.md        myCdkApp          assets           content          contentspec.yaml static

Assuming this repo contains a cdk app (myCdkApp here) committed in this repo.

tfc-analytics-ara-demo on  mainline [!] on ☁️  (us-east-1) 
❯ ls myCdkApp 
README.md            app.py               cdk.out              requirements.txt     tests
als_ara              cdk.json             requirements-dev.txt source.bat

Provding your Workshop ID and your path of your cdk app to the cdk-standalone-deployer npx executable, will setup your CDKApp to be deployed as part of your workshop event for you.

tfc-analytics-ara-demo on  mainline [!] on ☁️  (us-east-1) 
❯npx cdk-standalone-deployer setup-workshop --workshop-id 12345678-aabb-a12a-1234-1234567890 --cdk-project-path ./myCdkApp

Check access permissions ...
Access granted !
Creating zip file cdk_app.zip for project located at ./myCdkApp
zip file cdk_app.zip for project located at ./myCdkApp created
Uploading cdk_app.zip ws-assets-us-east-1/12345678-aabb-a12a-1234-1234567890/cdk_app.zip to S3 ...
Successfully uploaded cdk_app.zip to S3 bucket ws-assets-us-east-1
Generating the deployer stack ...
Deployer stack generated !
Writing the deployer stack to disk ...
Deployer stack written at static/CDKDeployer.template.json !
Populating Content Spec ...
Template reference already found. skipping spec update.
contentspec.yaml now reference the static/CDKDeployer.template.json template !
Pushing change to git ...
? Are you ok to push the following listed files ? (if you answer 
no, you will have to do it manually for your changes to be taken 
into account by workshop studio using git add, commit and push 
command.) 
 Files to be pushed : 

 [
  "contentspec.yaml",
  "static/CDKDeployer.template.json"
] 
 Yes
The following files have been added, modified, moved, or removed:
********************************************************************

M       static/CDKDeployer.template.json


********************************************************************
remote: Validating objects: 100%        
To codecommit://tfc-analytics-ara-demo
   37ef83e..d83d0d4  mainline -> mainline
You are all done ! You can now test your workshop in the studio by pin

Usage

Prerequisite

1. To have a Workshop repo created and clone from https://studio.us-east-1.prod.workshops.aws/workshops
2. Your workshop credentials exported in your shell environment (using the "Credentials" top left button on workshop studio UI)
3. An AWS CDK app folder part of a git repository (it can be the same as the workshop, but only committed file will be added to the deployable zip)
4. node installed

All options

npx cdk-standalone-deployer setup-workshop --help

Usage: cli [options]

A simple tool to make your CDK app deployable through Through Workshop studio. 
 
 Prerequisite : Export AWS credentials !

Options:
  --workshop-id <string>             ID of the workshop
  --cdk-project-path <string>        Path to the cdk app. It needs to be commited into a git repository
  --stack-name <string>              Name of the stack to deploy
  --enable-docker                    Enable building Docker images when deploying the CDK stacks
  --deploy-buildspec-name <string>   Name of the buildspec available in the cdk app to deploy the stack.
                                     (Required if --destroy-buildspec-name is provided)
  --destroy-buildspec-name <string>  Name of the buildspec available in the cdk app to destroy the stack.
                                     (Required if --deploy-buildspec-name is provided)
  --install-command <string>         Command to run to install dependencies
  --build-command <string>           Command to run to build the cdk app
  --bootstrap-command <string>       Command to run to build the cdk app (default: "npx cdk bootstrap
                                     --qualifier $CDK_QUALIFIER --toolkit-stack-name
                                     CDKToolkit-$CDK_QUALIFIER")
  --deploy-command <string>          Command to run to deploy the cdk app (default: "npx cdk deploy
                                     $PARAMETERS --all --require-approval never -c
                                     @aws-cdk/core:bootstrapQualifier=$CDK_QUALIFIER")
  --destroy-command <string>         Command to run to destroy the cdk app (default: "npx cdk destroy
                                     --all --force -c @aws-cdk/core:bootstrapQualifier=$CDK_QUALIFIER")
  --cdk-qualifier <string>           CDK qualifier to use (default: "deployer")
  --cdk-parameters [pair...]         add an entry (or several separated by a space) key=value that will
                                     be passed to the cdk app through context (--context)
  --verbose                          Verbose mode
  -h, --help                         display help for command

Architecture

TODO

• [ ] Add integ test for S3 source
• [ ] Add integ test for custom buildspec

Credits

This package is inspired by @pahud work (https://github.com/pahud/lambda-url-demo) and @gromav work (https://github.com/aws-samples/aws-analytics-reference-architecture)