aws-cdk | AWS Cloud Development Kit is a framework for defining cloud | Continuous Deployment library

 by   aws TypeScript Version: 2.127.0 License: Apache-2.0

kandi X-RAY | aws-cdk Summary

kandi X-RAY | aws-cdk Summary

aws-cdk is a TypeScript library typically used in Devops, Continuous Deployment, Docker applications. aws-cdk has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

The AWS Cloud Development Kit (AWS CDK) is an open-source software development framework to define cloud infrastructure in code and provision it through AWS CloudFormation. It offers a high-level object-oriented abstraction to define AWS resources imperatively using the power of modern programming languages. Using the CDK’s library of infrastructure constructs, you can easily encapsulate AWS best practices in your infrastructure definition and share it without worrying about boilerplate logic.

            kandi-support Support

              aws-cdk has a medium active ecosystem.
              It has 10320 star(s) with 3297 fork(s). There are 233 watchers for this library.
              There were 10 major release(s) in the last 6 months.
              There are 1649 open issues and 10666 have been closed. On average issues are closed in 180 days. There are 73 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of aws-cdk is 2.127.0

            kandi-Quality Quality

              aws-cdk has 0 bugs and 0 code smells.

            kandi-Security Security

              aws-cdk has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              aws-cdk code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              aws-cdk is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              aws-cdk releases are available to install and integrate.
              Installation instructions, examples and code snippets are available.
              It has 4299 lines of code, 276 functions and 3745 files.
              It has high code complexity. Code complexity directly impacts maintainability of the code.

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            aws-cdk Key Features

            No Key Features are available at this moment for aws-cdk.

            aws-cdk Examples and Code Snippets

            copy iconCopy
            aws_access_key_id = AS...SF  
            aws_secret_access_key = DNS...ebXs  
            aws_session_token = IQo...OM=  
            aws_access_key_id = A...LH  
            aws_secret_access_key = G...8vO2  
            aws_session_token = IQ...Qo=  
            cdk-eks-cluster-module,:clapper: Quick Start,Prerequisites
            TypeScriptdot img2Lines of Code : 124dot img2License : Permissive (Apache-2.0)
            copy iconCopy
            mkdir aws-quick-start-eks && cd aws-quick-start-eks
            npx cdk init sample-eks  --language typescript
            npx cdk bootstrap 
            npm install @smallcase/cdk-eks-cluster-module
            yarn add @smallcase/cdk-eks-cluster-module
            import {
            aws-cdk-microservice,A typical microservice architecture on AWS looks like:
            TypeScriptdot img3Lines of Code : 101dot img3License : Permissive (Apache-2.0)
            copy iconCopy
            import { Stack, StackProps } from '@aws-cdk/core';
            import { Construct } from 'constructs';
            import { MicroService } from '@smallcase/aws-cdk-microservice';
            import { App } from '@aws-cdk/core';
            export class UnknownAPIStackDev extends Stack {
            D3 Map XML Polygon ids to JSON data
            Lines of Code : 110dot img4License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            d3.selectAll("svg polygon")
            d3.selectAll("svg polygon, svg path")
            const data = [
              { "id": "polygon5256", "value": 39.5 }, // roof
              { "id": "pol
            Nginx proxy Wordpress http auth
            Lines of Code : 43dot img5License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            server {
                listen 443 ssl http2;
                listen [::]:443 ssl http2;
                set $forward_scheme https;
                # Logging
                access_log                  /var/log/nginx/alllectra.access.log;
            Nginx proxy Wordpress http auth
            Lines of Code : 38dot img6License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            server {
                listen 443 ssl http2;
                listen [::]:443 ssl http2;
                set $forward_scheme https;
                # Logging
                access_log                  /var/log/nginx/alllectra.access.log;
            How to use with F#
            Lines of Code : 59dot img7License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            open System
            open System.Threading.Tasks
            open Quartz
            open Quartz.Impl
            type Job() =
                interface IJob with
                    member _.Execute(_context) =
            task {
                // Grab the Schedu
            Cloudformation creating a Lamba with it's associated Role
            Lines of Code : 53dot img8License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            "Role" : {"Fn::GetAtt" : ["NFTCalculateCIDLambdaRole", "Arn"] }
                "AWSTemplateFormatVersion": "2010-09-09",
                "Description": "Lambda Function + IAM role Resources",
                "Resources": {
            Kotlin Lambda function as a parameter
            Javadot img9Lines of Code : 21dot img9License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
                    .thenApply({ response ->
                        val (success, error) = parseSuccessAndError(response.result!!)
            How to change title of the page of React-Router v6+ in history menu
            Lines of Code : 41dot img10License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            // App.jsx
              } />
              } />
            // App.jsx
              } />
              } />
            // HomePage.jsx
            export function HomePage(props) {
              useEffect(() => document.title = props.title, [])
              return ...

            Community Discussions


            Getting Error: Cannot find module 'js-yaml'
            Asked 2022-Apr-11 at 07:49

            I have installed js-yaml with this command



            Answered 2022-Apr-11 at 07:49

            The @types/js-yaml contains only type definitions used by TypeScript compiler to verify your code. However, it doesn't contain the actual implementation required at runtime.

            You should install npm install js-yaml --save.



            Trouble getting data from Amazon DynamoDB
            Asked 2022-Mar-26 at 17:25

            I am having some trouble getting all items from a DynamoDB table. I am following the example from the AWS GitHub repo. Here is the code I have



            Answered 2022-Mar-26 at 15:34

            You missed .promise(), so it don't await until the request is completed.



            When I add this BucketDeployment to my CDK CodePipeline, cdk synth never finishes
            Asked 2022-Mar-25 at 09:19

            I'm trying to use CDK and CodePipeline to build and deploy a React application to S3. After the CodePipeline phase, in my own stack, I defined the S3 bucket like this:



            Answered 2022-Jan-28 at 07:51

            For the first question:

            And if I change to Source.asset("./build") I get the error: ... Why is it searching for the build directory on my machine?

            This is happening when you run cdk synth locally. Remember, cdk synth will always reference the file system where this command is run. Locally it will be your machine, in the pipeline it will be in the container or environment that is being used by AWS CodePipeline.

            Dig a little deeper into BucketDeployment
            But also, there is some interesting things that happen here that could be helpful. BucketDeployment doesn't just pull from the source you reference in BucketDeployment.sources and upload it to the bucket you specify in BucketDeployment.destinationBucket. According to the BucketDeployment docs the assets are uploaded to an intermediary bucket and then later merged to your bucket. This matters because it will explain your error received Error: Cannot find asset at C:\Users\pupeno\Code\ww3fe\build because when you run cdk synth it will expect the dir ./build as stated in Source.asset("./build") to exist.

            This gets really interesting when trying to use a CodePipeline to build and deploy a single page app like React in your case. By default, CodePipeline will execute a Source step, followed a Synth step, then any of the waves or stages you add after. Adding a wave that builds your react app won't work right away because we now see that the output directory of building you react app is needed during the Synth step because of how BucketDeployment works. We need to be able to have the order be Source -> Build -> Synth -> Deploy. As found in this question, we can control the order of the steps by using inputs and outputs. CodePipeline will order the steps to ensure input/output dependencies are met. So we need the have our Synth step use the Build's output as its input.

            Concerns with the currently defined pipeline
            I believe that your current pipeline is missing a CodeBuildStep that would bundle your react app and output it to the directory that you specified in BucketDeployment.sources. We also need to set the inputs to order these actions correctly. Below are some updates to the pipeline definition, though some changes may need to be made to have the correct file paths. Also, set BucketDeployment.sources to the dir where your app bundle is written to.



            AWS CDK: Cognito with ApplicationLoadBalancedFargateService
            Asked 2022-Feb-15 at 11:41

            I'd like to secure my webapp running in an ECS Fargate container with Cognito. Using the convenient ecspatterns.ApplicationLoadBalancedFargateService with the Cognito example given at AuthenticateCognitoAction shown at is giving me a headache.

            I've tried to first create the LoadBalancer shown in the Cognito example and then pass it as the loadBalancer parameter in ApplicationLoadBalancedFargateService constructor. And I've also tried first creating the ApplicationLoadBalancedFargateService and then doing fargateService.loadBalancer.addListener to add the Cognito Listener. Both solutions fail with:



            Answered 2022-Feb-15 at 11:41

            Thanks to this demo stack I found that you:

            1. create the Cognito User Pool and Client
            2. create ApplicationLoadBalancedFargateService
            3. add a AuthenticateCognitoAction to the fargateService listener like this:



            Remove unnecessary AWS resources, VPC + NAT gateway
            Asked 2022-Feb-11 at 11:08

            I recently set up an application on AWS via CDK. The application consists of a Dockerized nodejs application, which connects to an RDS instance, and has a Redis caching layer as well. After having the application deployed for a few days, the costs are much higher than I had anticipated, even with minimal traffic. After looking through the cost explorer, it looks like half of the cost is coming from the NAT gateways.

            In my current setup, I have created two VPCs. One is used for the application stack, and the other is for the CodePipeline. I needed to add one for the pipeline because without it I was hitting rate limits when trying to pull Docker images during the CodeBuildAction steps.

            I'm not very comfortable with the networking bits, but I feel like there are extra resources involved. The pipeline VPC has three NAT gateways and three EIPs. These end up just sitting there waiting for the next deployment, which seems like a huge waste. It seems like a new gateway + EIP is allocated for each construct the VPC is attached to in CDK. Can I just make it reuse the same one? Is there an alternative to adding a VPC at all and not getting rate limited by Docker?

            I also find it very surprising (I might just be naive) that the NAT gateway is so far equally as expensive as my current Fargate task costs. Is there an alternative that would serve my purposes, but come at a little lower cost?

            Anyways, here are my two stacks:



            Answered 2022-Feb-11 at 11:08

            I would strongly advise moving from the Docker directory to ECR public gallery to avoid ratelimit issues:

            That said, to answer the question about the number of NATs created. As you can see in the CDK docs, what you're seeing reflects the default behavior (emphasis mine):

            A VPC consists of one or more subnets that instances can be placed into. CDK distinguishes three different subnet types:

            Public (SubnetType.PUBLIC) - public subnets connect directly to the Internet using an Internet Gateway. If you want your instances to have a public IP address and be directly reachable from the Internet, you must place them in a public subnet.

            Private with Internet Access (SubnetType.PRIVATE_WITH_NAT) - instances in private subnets are not directly routable from the Internet, and connect out to the Internet via a NAT gateway. By default, a NAT gateway is created in every public subnet for maximum availability. Be aware that you will be charged for NAT gateways.

            Isolated (SubnetType.PRIVATE_ISOLATED) - isolated subnets do not route from or to the Internet, and as such do not require NAT gateways. They can only connect to or be connected to from other instances in the same VPC. A default VPC configuration will not include isolated subnets,

            A default VPC configuration will create public and private subnets. However, if natGateways:0 and subnetConfiguration is undefined, default VPC configuration will create public and isolated subnets.

            So a separate NAT is created for every Public subnet.

            Also, the docs for the natGateways parameter mentioned above also describe the default behavior:

            (default: One NAT gateway/instance per Availability Zone)

            To limit the number of AZs used by the VPC, specify the maxAzs parameter. Set it to 1 to only have a single NAT per VPC.

            If you're fine with making the resources in the VPC publicly reachable from the internet, you can place them in Public subnets and avoid the creation of NATs altogether.



            CDK Unable to Add CodeStarNotification to CodePipeline
            Asked 2022-Feb-09 at 09:02

            I use CDK to deploy a codepipeline. It works fine until I try to add notification for codepipeline success/fail events. It gives CREATE_FAILED error with message Resource handler returned message: "Invalid request provided: AWS::CodeStarNotifications::NotificationRule" (RequestToken: bb566fd0-1ac9-5d61-03fe-f9c27b4196fa, HandlerErrorCode: InvalidRequest). What could be the reason? Thanks.



            Answered 2022-Feb-09 at 09:02

            This is because imported resources cannot be modified. As you pointed out in the comments, setting up the notification involves modifying the Topic resource, specifically its access policy.




            How many times do I need to run cdk bookstrap?
            Asked 2022-Feb-07 at 07:04

            I am trying to understand how cdk bootstrap works. I have read the doc: and tried to run the command in my AWS account. I can see a new cf stack is created CDKToolkit which includes s3 bucket, iam roles etc.

            My question is whether I need to run this command for every cdk project I have? Or is it just one time execution? If I have projects using different cdk version v1 and v2, do I use the same cf stack? Will it cause version conflicts?



            Answered 2022-Feb-07 at 07:04

            It's typically a one time thing per account per region. The infrastructure in that stack is shared among your CDK apps.

            There was a change in format a while ago that required an update of the stack, but since then it has remained largely unchanged.

            The docs on bootstrap are probably more helpful than the Github Link: CDK Bootstrapping.

            Each CloudFormation stack created by a CDK app only belongs to one CDK app, they shouldn't be shared. The outputs can be referenced from other apps, but each stack should belong to one app.

            That's why you can mix and match CDK versions across different stacks. Usually each CDK app maps to one or more CloudFormation stacks.



            AWS CDK pipeline : how to assign a CodeBuild output to a Lambda code?
            Asked 2022-Feb-04 at 15:36

            I have the following AWS CDK pipeline which works. It basically takes source from 2 different GitHub repositories (one for the application code, one for the cdk code) and builds the application code and the cdk code :



            Answered 2022-Feb-04 at 15:36

            So I found a solution. Maybe not the solution. Indeed, this seems quite convoluted ... and I am sure there is a better way.

            So the solution lies in the fact that the ShellStep in the CodePipeline construct attaches the output of additionalInputs (so the result of the previous CodeBuildStep i.e. lambdaBuildStep) in a specific directory which is dynamically generated but stored in an environment variable called CODEBUILD_SRC_DIR_BuildLambda_lambda_repo so you can see it's a combination of the name of the CodeBuildStep and the repo (with the dash changed to underscores).

            So my solution was to use this environment variables as my Lambda code asset.



            How do I make my CloudFormation / CodePipeline update a domain name to point to an S3 bucket when using CDK?
            Asked 2022-Jan-31 at 20:00

            I'm using CDK to deploy a CodePipeline that builds and deploys a React application to S3. All of that is working, but I want the deployment to update a domain name to point that S3 bucket.

            I already have the Zone defined in Route53 but it is defined by a different cloud formation stack because there are a lot of details that are not relevant for this app (MX, TXT, etc). What's the right way for my Pipeline/Stacks to set those domain names?

            I could think of two solutions:

            • Delegate the domain to another zone, so zone delegates
            • Have my pipeline inject records into the existing zone.

            I didn't try the delegation zone method. I was slightly concerned about manually maintaining the generated nameservers from into my CloudFormation for zone

            I did try injecting the records into the existing zone, but I run into some issues. I'm open to either solving these issues or doing this whichever way is correct.

            In my stack (full pipeline at the bottom) I first define and deploy to the bucket:



            Answered 2022-Jan-31 at 16:31

            You cannot depend on CDK pipeline to fix itself if the synth stage is failing, since the Pipeline CloudFormation Stack is changed in the SelfMutate stage which uses the output of the synth stage. You will need to do one of the following options to fix your pipeline:

            1. Run cdk synth and cdk deploy PipelineStack locally (or anywhere outside the pipeline, where you have the required AWS IAM permissions). Edit: You will need to temporarily set selfMutatation to false for this to work (Reference)

            2. Temporarily remove route53.HostedZone.fromLookup and route53.CnameRecord from your MainStack while still keeping the rolePolicyStatements change. Commit and push your code, let CodePipeline run once, making sure that the Pipeline self mutates and the IAM role has the required additional permissions. Add back the route53 constructs, commit, push again and check whether your code works with the new changes.



            "AssertDescription: CDK bootstrap stack version 6 required"
            Asked 2022-Jan-29 at 18:42

            I'm fairly new (today its the first day) with Amazon CDK. I have been currently following the initial tutorial in Amazon's CDK page.

            I have installed aws and cdk:



            Answered 2022-Jan-05 at 19:25

            This is extremely stupid mistake. I currently have 2 users in my machine setup and I was using the wrong one to deploy.

            After performing aws configure with the credentials of the correct account I was able to deploy


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install aws-cdk

            For a detailed walkthrough, see the tutorial in the AWS CDK Developer Guide.


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