CI/CD on AWS

AWS Summit, London, May 8th, 2019

How can you accelerate the delivery of new, high-quality services? How can you be able to experiment and get feedback quickly from your customers? To get the most out of the agility afforded by serverless and containers, it is essential to build CI/CD pipelines that help teams iterate on code and quickly release features. In this talk, we demonstrate how developers can build effective CI/CD release workflows to manage their serverless or containerized deployments on AWS. We cover infrastructure-as-code (IaC) application models, such as AWS Serverless Application Model (AWS SAM) and new imperative IaC tools. We also demonstrate how to set up CI/CD release pipelines with AWS CodePipeline and AWS CodeBuild, and we show you how to automate safer deployments with AWS CodeDeploy.

Transcript

1. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
   S U M M I T
   CI/CD on AWS
   Danilo Poccia
   Principal Evangelist, Serverless
   AWS
   @danilop
   Tonino Greco
   Head of Infrastructure and DevOps
   Dunelm
   @toninog
   

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2. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
   S U M M I T
   Listen
   Iterate
   Experiment
   Innovation
   Flywheel
   Experiments power the engine of rapid innovation
   

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3. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
   S U M M I T
   Pillars of releasing modern applications
   

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4. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
   S U M M I T
   Pillars of releasing modern applications
   Infrastructure
   as code
   

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5. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
   S U M M I T
   Infrastructure as code goals
   1. Make infrastructure changes repeatable and predictable
   2. Release infrastructure changes using the same tools as code changes
   3. Replicate production environment in a staging environment to enable
   continuous testing
   

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6. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
   S U M M I T
   Release infrastructure-as-code with AWS CloudFormation
   “Master”
   branch
   Prepare
   template
   Create & execute
   change set
   Create & execute
   change set
   

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7. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
   S U M M I T
   Model function environments with AWS
   Serverless Application Model (SAM)
   • Open source framework for building serverless
   applications on AWS
   • Shorthand syntax to express functions, APIs,
   databases, and event source mappings
   • Transforms and expands SAM syntax into AWS
   CloudFormation syntax on deployment
   • Supports all AWS CloudFormation resource types
   https://aws.amazon.com/serverless/sam/
   

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8. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
   S U M M I T
   Model container environments with AWS
   Cloud Development Kit (CDK)
   • Open source framework to define cloud
   infrastructure in TypeScript, Java, C#, …
   • Provides library of higher-level resource types
   (“construct” classes) that have AWS best practices
   built in by default, packaged as npm modules
   • Provisions resources with CloudFormation
   • Supports all CloudFormation resource types
   AWS
   CDK
   https://awslabs.github.io/aws-cdk
   D
   eveloper
   Preview
   

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9. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
   S U M M I T
   AWS Cloud Development Kit (CDK)
   npm install -g aws-cdk
   cdk init app --language typescript
   cdk synth
   cdk deploy
   cdk diff
   cdk destroy
   CodePipeline
   Use CloudFormation
   deployment actions with
   any synthesized CDK
   application
   Jenkins
   Use CDK CLI
   D
   eveloper
   Preview
   TypeScript
   C#
   F#
   Java
   Python
   …
   

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10. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    CDK template
    import ec2 = require('@aws-cdk/aws-ec2');
    import ecs = require('@aws-cdk/aws-ecs');
    import cdk = require('@aws-cdk/cdk');
    class BonjourFargate extends cdk.Stack {
    constructor(parent: cdk.App, name: string, props?: cdk.StackProps) {
    super(parent, name, props);
    const vpc = new ec2.VpcNetwork(this, 'MyVpc', { maxAZs: 2 });
    const cluster = new ecs.Cluster(this, 'Cluster', { vpc });
    new ecs.LoadBalancedFargateService(
    this, "FargateService", {
    cluster,
    image: ecs.DockerHub.image("amazon/amazon-ecs-sample"),
    });
    }
    }
    const app = new cdk.App();
    new BonjourFargate(app, 'Bonjour');
    app.run();
    TypeScript
    

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11. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    import ec2 = require('@aws-cdk/aws-ec2');
    import ecs = require('@aws-cdk/aws-ecs');
    import cdk = require('@aws-cdk/cdk');
    class BonjourFargate extends cdk.Stack {
    constructor(parent: cdk.App, name: string, props?: cdk.StackProps) {
    super(parent, name, props);
    const vpc = new ec2.VpcNetwork(this, 'MyVpc', { maxAZs: 2 });
    const cluster = new ecs.Cluster(this, 'Cluster', { vpc });
    new ecs.LoadBalancedFargateService(
    this, "FargateService", {
    cluster,
    image: ecs.DockerHub.image("amazon/amazon-ecs-sample"),
    });
    }
    }
    const app = new cdk.App();
    new BonjourFargate(app, 'Bonjour');
    app.run();
    CDK template
    TypeScript
    

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12. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    CDK template
    import ec2 = require('@aws-cdk/aws-ec2');
    import ecs = require('@aws-cdk/aws-ecs');
    import cdk = require('@aws-cdk/cdk');
    class BonjourFargate extends cdk.Stack {
    constructor(parent: cdk.App, name: string, props?: cdk.StackProps) {
    super(parent, name, props);
    const vpc = new ec2.VpcNetwork(this, 'MyVpc', { maxAZs: 2 });
    const cluster = new ecs.Cluster(this, 'Cluster', { vpc });
    new ecs.LoadBalancedFargateService(
    this, "FargateService", {
    cluster,
    image: ecs.DockerHub.image("amazon/amazon-ecs-sample"),
    });
    }
    }
    const app = new cdk.App();
    new BonjourFargate(app, 'Bonjour');
    app.run();
    TypeScript
    

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13. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    CDK Lambda cron example
    export class LambdaCronStack extends cdk.Stack {
    constructor(app: cdk.App, id: string) {
    super(app, id);
    const lambdaFn = new lambda.Function(this, 'Singleton', {
    code: new lambda.InlineCode(
    fs.readFileSync('lambda-handler.py', { encoding: 'utf-8' })),
    handler: 'index.main’,
    timeout: 300,
    runtime: lambda.Runtime.Python37,
    });
    const rule = new events.EventRule(this, 'Rule', {
    scheduleExpression: 'cron(0 18 ? * MON-FRI *)’,
    });
    rule.addTarget(lambdaFn);
    }
    }
    Lambda function
    CloudWatch Events rule
    CloudFormation Stack
    Set the target
    TypeScript
    

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14. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Model pipelines with AWS CDK
    • Minimize copy-and-paste by using object-oriented language
    • Define microservice pipeline “shape” in one class, then re-use it across
    many pipelines
    • CDK includes many high-level constructs for modeling a CodePipeline
    pipeline, including automatically configuring IAM role policies
    

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15. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    CDK pipelines: Construct
    export class MyMicroservicePipeline extends cdk.Construct {
    constructor(parent: cdk.Construct, name: string, props: MyMicroservicePipelineProps) {
    super(parent, name);
    const pipeline = new codepipeline.Pipeline(this, 'Pipeline', {
    pipelineName: props.serviceName,
    });
    const githubAccessToken = new cdk.SecretParameter(this, 'GitHubToken',
    { ssmParameter: 'GitHubToken' });
    new codepipeline.GitHubSourceAction(this, 'GitHubSource', {
    stage: pipeline.addStage('Source'),
    owner: 'myorg',
    repo: props.serviceName,
    oauthToken: githubAccessToken.value
    });
    …
    

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16. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    CDK pipelines: Stack
    import cdk = require('@aws-cdk/cdk');
    import { MyMicroservicePipeline } from './pipeline';
    class MyMicroservicePipelinesStack extends cdk.Stack {
    constructor(parent: cdk.App, name: string, props?: cdk.StackProps) {
    super(parent, name, props);
    new MyMicroservicePipeline(this, 'Pipeline1', { 'serviceName': 'Microservice1' });
    new MyMicroservicePipeline(this, 'Pipeline2', { 'serviceName': 'Microservice2' });
    new MyMicroservicePipeline(this, 'Pipeline3', { 'serviceName': 'Microservice3' });
    new MyMicroservicePipeline(this, 'Pipeline4', { 'serviceName': 'Microservice4' });
    }
    }
    const app = new cdk.App();
    new MyMicroservicePipelinesStack(app, 'MyMicroservicePipelines');
    app.run();
    

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17. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Pillars of releasing modern applications
    Infrastructure
    as code
    

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18. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Pillars of releasing modern applications
    

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19. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Pillars of releasing modern applications
    Continuous
    integration
    

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20. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Continuous integration goals
    Source Build Test Production
    

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21. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Continuous integration goals
    1. Automatically kick off a new release when new code is checked in
    2. Build and test code in a consistent, repeatable environment
    3. Continually have an artifact ready for deployment
    4. Continually close feedback loop when build fails
    

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22. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    AWS CodePipeline
    • Continuous delivery service for fast and reliable
    application updates
    • Model and visualize your software release process
    • Builds, tests, and deploys your code every time
    there is a code change
    • Integrates with third-party tools and AWS
    

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23. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    AWS CodePipeline: Supported sources
    Pick branch
    AWS CodeCommit
    GitHub
    Pick object or folder
    Amazon S3
    Pick Docker tag
    Amazon ECR
    Automatically kick off release and pull latest source code
    

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24. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    AWS CodePipeline: ECR source action
    Source code:
    “master” branch
    ECR repository:
    “release” tag
    

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25. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    AWS CodePipeline: Supported triggers
    Automatically kick off release
    Amazon CloudWatch Events
    • Scheduled (nightly release)
    • AWS Health events (Fargate
    platform retirement)
    Available in CloudWatch Events
    console, API, SDK, CLI, and AWS
    CloudFormation
    Webhooks
    • DockerHub
    • Quay
    • Artifactory
    Available in CodePipeline API,
    SDK, CLI, and CloudFormation
    

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26. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    AWS CodeBuild
    • Fully managed build service that compiles source
    code, runs tests, and produces software packages
    • Scales continuously and processes multiple builds
    concurrently
    • No build servers to manage
    • Pay by the minute, only for the compute
    resources you use
    • Monitor builds through CloudWatch Events
    

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27. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    AWS CodeBuild
    • Each build runs in a new Docker container for a
    consistent, immutable environment
    • Docker and AWS CLI are installed in every official
    CodeBuild image
    • Provide custom build environments suited to
    your needs through the use of Docker images
    

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28. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    AWS CodeBuild: Lambda buildspec
    version: 0.2
    phases:
    build:
    commands:
    - npm ci
    - npm test
    - >
    aws cloudformation package
    --template-file template.yaml
    --output-template packaged.yaml
    --s3-bucket $BUCKET
    artifacts:
    type: zip
    files:
    - packaged.yaml
    

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29. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    AWS CodeBuild: Lambda buildspec using SAM CLI
    version: 0.2
    phases:
    install:
    commands:
    - pip install --upgrade awscli aws-sam-cli
    build:
    commands:
    - sam build
    - sam package --s3-bucket $BUCKET --output-template-file packaged.yaml
    artifacts:
    type: zip
    files:
    - packaged.yaml
    

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30. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    AWS CodeBuild: Docker buildspec
    version: 0.2
    phases:
    build:
    commands:
    - $(aws ecr get-login --no-include-email)
    - docker build -t $IMAGE_REPO_NAME:$IMAGE_TAG .
    - docker tag $IMAGE_REPO_NAME:$IMAGE_TAG $ECR_REPO:$IMAGE_TAG
    - docker push $ECR_REPO:$IMAGE_TAG
    

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31. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Pillars of releasing modern applications
    Continuous
    integration
    

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32. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Pillars of releasing modern applications
    

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33. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Pillars of releasing modern applications
    Continuous
    deployment
    

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34. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Continuous deployment goals
    Source Build Test Production
    

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35. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Continuous deployment goals
    1. Automatically deploy new changes to staging environments for testing
    2. Deploy to production safely without impacting customers
    3. Deliver to customers faster: Increase deployment frequency,
    and reduce change lead time and change failure rate
    

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36. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    AWS CodeDeploy
    • Automates code deployments to any instance
    and Lambda
    • Handles the complexity of updating your
    applications
    • Avoid downtime during application deployment
    • Roll back automatically if failure detected
    • Deploy to Amazon EC2, Lambda, ECS, or on-
    premises servers
    

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37. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    CodeDeploy – Lambda canary deployment
    API
    Gateway
    Lambda
    function
    weighted
    alias “live”
    v1 Lambda
    function
    code
    100%
    

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38. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    CodeDeploy – Lambda canary deployment
    API
    Gateway
    Lambda
    function
    weighted
    alias “live”
    v1 code
    100%
    Run PreTraffic hook against v2 code before it receives traffic
    v2 code
    0%
    

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39. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    CodeDeploy – Lambda canary deployment
    API
    Gateway
    Lambda
    function
    weighted
    alias “live”
    v1 code
    90%
    Wait for 10 minutes, roll back in case of alarm
    v2 code
    10%
    

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40. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    CodeDeploy – Lambda canary deployment
    API
    Gateway
    Lambda
    function
    weighted
    alias “live”
    v1 code
    0%
    Run PostTraffic hook and complete deployment
    v2 code
    100%
    

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41. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    CodeDeploy – Lambda deployments in SAM templates
    Resources:
    GetFunction:
    Type: AWS::Serverless::Function
    Properties:
    AutoPublishAlias: live
    DeploymentPreference:
    Type: Canary10Percent10Minutes
    Alarms:
    - !Ref ErrorsAlarm
    - !Ref LatencyAlarm
    Hooks:
    PreTraffic: !Ref PreTrafficHookFunction
    PostTraffic: !Ref PostTrafficHookFunction
    Canary10Percent30Minutes
    Canary10Percent5Minutes
    Canary10Percent10Minutes
    Canary10Percent15Minutes
    Linear10PercentEvery10Minutes
    Linear10PercentEvery1Minute
    Linear10PercentEvery2Minutes
    Linear10PercentEvery3Minutes
    AllAtOnce
    

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42. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    API Gateway canary stage
    API
    Gateway
    Production
    stage
    v1 code
    v2 code
    99.5%
    0.5%
    Canary
    stage
    

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43. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    CodeDeploy-ECS blue-green deployments
    • Provisions “green” tasks, then flips
    traffic at the load balancer
    • Validation “hooks” enable testing at
    each stage of the deployment
    • Fast rollback to “blue” tasks in seconds if
    case of hook failure or CloudWatch
    alarms
    • Monitor deployment status and history
    via console, API, Amazon SNS
    notifications, and CloudWatch Events
    • Use “CodeDeploy-ECS” deploy action in
    CodePipeline or “aws ecs deploy”
    command in Jenkins
    

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44. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    CodeDeploy-ECS appspec
    version: 1.0
    Resources:
    - TargetService:
    Type: AWS::ECS::Service
    Properties:
    - TaskDefinition: "my_task_definition:8"
    LoadBalancerInfos:
    - ContainerName: "SampleApp"
    ContainerPort: 80
    Hooks:
    - BeforeInstall: "LambdaFunctionToExecuteAnythingBeforeNewRevisionInstalltion"
    - AfterInstall: "LambdaFunctionToExecuteAnythingAfterNewRevisionInstallation"
    - AfterAllowTestTraffic: "LambdaFunctionToValidateAfterTestTrafficShift"
    - BeforeAllowTraffic: "LambdaFunctionToValidateBeforeTrafficShift"
    - AfterAllowTraffic: "LambdaFunctionToValidateAfterTrafficShift"
    

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45. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    CodeDeploy-ECS blue-green deployment
    100%
    Prod
    traffic
    

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46. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    CodeDeploy-ECS blue-green deployment
    Target
    group 2
    100%
    Prod
    traffic
    Test traffic listener
    (port 9000)
    

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47. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    CodeDeploy-ECS blue-green deployment
    Green tasks:
    v2 code
    100%
    Prod
    traffic
    Provision green tasks
    

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48. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    CodeDeploy-ECS blue-green deployment
    100%
    Prod
    traffic
    Run hook against test endpoint before green tasks receive prod traffic
    0%
    Prod
    traffic
    

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49. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    CodeDeploy-ECS blue-green deployment
    Flip traffic to green tasks, rollback in case of alarm
    0%
    Prod
    traffic
    100%
    Prod
    traffic
    

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50. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    CodeDeploy-ECS blue-green deployment
    100%
    Prod
    traffic
    Drain blue tasks
    

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51. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    AWS Deployment Framework (ADF)
    https://github.com/awslabs/aws-deployment-framework
    

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52. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Pillars of releasing modern applications
    Continuous
    deployment
    

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53. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Pillars of releasing modern applications
    

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54. S U M M I T © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    

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55. View Slide

56. CHALLENGES
    • Multiple independent tribes deploying to AWS
    • Complex Serverless deployments
    • Deploy rapid and often
    Our Answer
    • SAM CLI - Wrapped in Ansible
    • Part of a Pipeline library – functions for the developer
    • Jenkins Pipeline as code
    • Extensible, reproducible and simple
    • Slack integrations
    Dunelm Ltd
    

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57. Git Commit
    Jenkins
    Webhook
    Automation Code Product Code
    Code
    Linting
    Prepare
    Worker
    Node
    Install Software
    Security
    Validation
    Build / compile
    Run
    Tests
    Deploy
    Install Software for building
    Vulnerability and Library scan
    Compile the software
    Run Unit and functional tests
    Deploy to AWS
    

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58. THE BENEFITS
    ü Simple, reproducible and security conscious
    ü Scalable for performance – each pipeline has it’s
    own worker node (on Spot instances)
    ü Highly customisable for each tribe – self serve
    ü Centrally managed library of functions – easy to
    adapt to change
    ü Rapid onboarding of new developers – easy to use
    ü Rapid development of CI/CD pipelines
    ü Over 100 developers using the pipelines (across all
    Dunelm technology tribes)
    Dunelm Ltd
    

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59. THE BENEFITS – THE STATS
    • Daily there are
    • >200 pipelines active
    • each deploying > 15 times / day
    • Having > 10 stages per pipeline
    • Productivity gains
    • > 95% of pipelines are successful
    • Allow tribes to be > 30% more effective (based
    on burnup charts and sprint reviews)
    • Allows us to test and security audit automatically
    Dunelm Ltd
    

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60. ADDITIONAL BENEFITS
    • Slack integration with Jenkins
    • Status updates in Tribe channels
    • Kick off adhoc builds from Slack
    • Slack integration with AWS
    • Able to delete stacks (AWS CloudFormation)
    • Add parameters to AWS Systems Manager
    • Create Amazon Route53 DNS entries
    • AWS Lambda function to delete AWS CloudFormation
    stacks once they are removed from BitBucket
    Dunelm Ltd
    

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61. Thank you!
    S U M M I T © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    Danilo Poccia
    @danilop
    Tonino Greco
    @toninog
    

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