Jenkins vs. AWS CodePipeline (AWS User Group Berlin)
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Talk at AWS User Group Berlin, 14.01.2020
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Jenkins vs. AWS CodePipeline (AWS User Group Berlin)
- 1. @rafaelbenvenuti @StGebert Jenkins vs. AWS CodePipeline Rafael Schleetz Benvenuti & Steffen Gebert Berlin AWS User Group Meetup – 14.01.2020
- 2. @rafaelbenvenuti @StGebert Abstract Who has not used Jenkins? Who does not have a love-hate relationship with it? At EMnify, we are heavy Jenkins users, but we re also always considering alternatives where hosted services could make our life easier. Therefore, we recently - once again - looked at AWS CodePipeline and its friends CodeCommit, CodeBuild, and CodeDeploy. In this talk, we will compare the current state of the two ecosystems regarding their simplicity and flexibility for implementing both trivial as well as complex pipelines. Further, we cover topics like: deployment, maintenance, security, costs, and usability. 2
- 4. @rafaelbenvenuti @StGebert Your Guides 4 Dr. Steffen Gebert @StGebert Director Technology, Infrastructure Würzburg Rafael Schleetz Benvenuti @rafaelbenvenuti Site Reliability Engineer Berlin
- 5. @rafaelbenvenuti @StGebert EMnify 5 One of the first cellular providers on AWS - dedicated for IoT businesses We’re where customers are - on AWS offering simple integrations (TGW, Kinesis) Programmable SIM that works all over the world in ~600 networks Web portal and APIs for managing SIMs and their policies
- 6. @rafaelbenvenuti @StGebert EMnify GmbH • Privately founded in 2014 • ~95 in total • ~25 people touching code • Engineering teams in Würzburg & Berlin • Technology stack: AWS, Terraform, Java, Akka, Perl, C++, Go 7
- 7. @rafaelbenvenuti @StGebert Jenkins and AWS CodePipeline Current State
- 8. @rafaelbenvenuti @StGebert Running Jenkins • Jenkins Master • EC2 instance, ECS+EFS, or EKS, Fargate (requires RWO file system) • Recommendation: run it in Docker and include your plugins • Build Agents • Optional J (building on master is usually a bad idea) • EC2 spot (using ec2 plugin) or EKS (using kubernetes plugin) 9
- 9. @rafaelbenvenuti @StGebert Job Definition Job DSL Organization Folder Everything as Code 10 Jenkins Pipeline Build Agents Configuration as Code Jenkins Master AWS CloudFormation
- 10. @rafaelbenvenuti @StGebert Out of Scope: Jenkins X 11
- 13. @rafaelbenvenuti @StGebert Jenkins Pipeline 14 Domain-specific language Built-in control structures Steps •sh, bat •readFile, readMavenPom •stash, archiveArtifacts •build pipeline { stages { stage("Build") { steps { echo "Starting engines.." sh "make" } } stage("Unit") { steps { sh "mvn test" } } } agent { docker { label "maven:latest" } } }
- 14. @rafaelbenvenuti @StGebert Jenkins Pipeline Steps • Plugins contribute additional steps • Online reference: https://jenkins.io/doc/pipeline/steps/ 15
- 16. @rafaelbenvenuti @StGebert CodePipeline Actions 17 Source BitBucket Github CodeCommit S3 ECR Build CodeBuild Cloudbees Jenkins Teamcity Test CodeBuild AWS Device Farm Jenkins Deploy CodeDeploy CloudFormation Elastic Beanstalk Service Catalog ECS S3 Invoke AWS Lambda
- 18. @rafaelbenvenuti @StGebert Jenkins Pricing 19 Setup Costs •Initial Setup Costs Usage Costs •Computing resources used •EC2 instance costs •On-Demand •Reserved •Spot •A bit of storage, traffic etc. Maintenance Costs •Operational Costs
- 19. @rafaelbenvenuti @StGebert AWS Pricing 20 CodePipeline • Each pipeline costs $1.00 per month (when active) • Pipelines are free for the first 30 days after creation CodeCommit • Free for first active 5 users per month • Each additional active user costs $1.00 per month CodeBuild • Small instance (2 vCPUs, 3 GB RAM) - $0.005/min • Medium instance (4 vCPUs, 7 GB RAM) - $0.01/min • Large instance (8 vCPUs, 15 GB RAM) - $0.02/min CodeDeploy • Free
- 20. @rafaelbenvenuti @StGebert Price Comparison for Build Capacity 21 Jenkins Master Instance Jenkins Agent Instance c5.large RESERVED c5.large SPOT 2 vCPUS | 4 GB Ram 2 vCPUS | 4 GB Ram $39.42/month $0.000325/min CodeBuild Instance general1.small 2 vCPUS | 3 GB Ram $0.005 / min
- 21. @rafaelbenvenuti @StGebert Price Comparison for Active Pipelines 22 Jenkins Master Instance c5.large RESERVED 2 vCPUS | 4 GB Ram CodePipelines No Instances Required No Resources Required
- 34. @rafaelbenvenuti @StGebert Access Control • Jenkins • Users and groups, built-in or via SSO/OAuth • Per-project/folder permissions 35 • CodePipeline • IAM users and roles • Configure and run permissions AWS Identity and Access Management
- 37. @rafaelbenvenuti @StGebert Jenkins Build Environments • Any agent (running Java) connecting to the master (Linux, Windows, MacOS, ..) • Docker images • Kubernetes Pod with multiple containers
- 38. @rafaelbenvenuti @StGebert CodeBuild Build Environments • A CodeBuild build environment represents a combination of: • operating system / programming language runtime / set of tools • Essentially, a build environment is a Docker Image by definition. • You can use Docker Images stored in: • The Official Codebuild Image Repository • AWS ECR Repositories • DockerHub
- 44. @rafaelbenvenuti @StGebert Jenkins: Collecting Test Results 45
- 45. @rafaelbenvenuti @StGebert CodeBuild: Collecting Test Results 46
- 47. @rafaelbenvenuti @StGebert Different Behavior per Branch 48
- 48. @rafaelbenvenuti @StGebert Implementing Gitflow in CodePipeline 49 Source: https://aws.amazon.com/blogs/devops/implementing-gitflow-using-aws-codepipeline-aws-codecommit-aws-codebuild-and-aws-codedeploy/
- 51. @rafaelbenvenuti @StGebert Getting Input • Input step • Simple approval • Values/text can be dynamically computed • During pipeline execution • Jenkins Parametrized build • Only supplied with job execution • Can come from other job / via POST 52
- 53. @rafaelbenvenuti @StGebert Jenkins Scripted Pipelines • More power compared to Declarative Pipelines • Full Groovy power • Control/data structures • Classes • Variable assignment • Groovy errors only triggered during execution • Build error handling up to user (try/catch) • Greater flexibility in build agent allocation • Declarative: use script{} for super powers • Shared libraries to maintain custom steps 54
- 57. @rafaelbenvenuti @StGebert Deploying to EC2 Instances 58 AWS CodeDeploy Jenkins Master Jenkins Agent Security Group EKS
- 58. @rafaelbenvenuti @StGebert CodeDeploy AppSpec Example for EC2 59
- 61. @rafaelbenvenuti @StGebert From CodePipeline to Jenkins • AWS CodePipeline Plugin (polls for build jobs, publishes results) 62
- 62. @rafaelbenvenuti @StGebert From Jenkins to AWS 63
- 64. @rafaelbenvenuti @StGebert Summary & Conclusion • The best CI/CD tool depends on your situation and requirements (still in 2020) • Accepting that one tool can‘t cover everything makes switching easier • Integrating both together allows: • Getting the best of both / Cheaper solution / Smoother migration • Advice: Please give CodeDeploy a chance, it is a pretty interesting tool 65