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![Delivery Is Hard
How do we make sure our code works in
production-like environments?
● Test the code in a production-like environment
● Use automated tests to verify correct business functionality and
integration with other services
● Apply additional checks for security, compliance, etc.
Solution: Continuous Delivery!
“Continuous Delivery
doesn't mean every
change is deployed to
production ASAP. It
means every change is
proven to be deployable
at any time”
Carl Cacum[1]](https://image.slidesharecdn.com/fourstepstowardasafercontinuousdeliverypractice1-190123173951/75/Four-Steps-Toward-a-Safer-Continuous-Delivery-Practice-Hint-Add-Monitoring-5-2048.jpg)
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Four Steps Toward a Safer Continuous Delivery Practice (Hint: Add Monitoring)
This document outlines the principles and practices of continuous delivery in software development, emphasizing the importance of continuous integration and testing in production-like environments. It introduces Concourse CI as a tool for automating CI/CD workflows, highlighting its features like configuration as code, workflow visualization, and containerized execution. Additionally, it discusses techniques for monitoring and validating deployments to ensure software quality and resilience through feedback loops and automation.
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Four Steps Toward a Safer Continuous Delivery Practice (Hint: Add Monitoring)
- 1. © Copyright 2017Pivotal Software, Inc. All rights Reserved. Version 1.0 Four Steps Toward a Safer Continuous Delivery Practice James Ma Mike Villiger Product Manager Sr. Technical Partner Manager Pivotal Dynatrace Jan 23, 2019
- 2. Virtuous cycle of automatedand iterative progression, feedback, improvement of software Continuous Delivery to the Cloud Monitoring Securing Resiliency Develop Testing Experimenting Compliance Pivotal Cloud Foundry Deploy Operate Planning Test-Driven Dev CI Development Users
- 3. Developing & ReleasingSoftware Delivery How do we make sure our code works in production- like environments Integration How do we make sure our code works?
- 4. Integration Is Hard Howdo we make sure our code works? ● Integrate as early and as often as possible; ideally with each commit to your repository ● Invest in writing automated unit tests and integration tests ● Fix integration errors as soon as they appear Solution: Continuous Integration “Team programming isn’t a divide and conquer problem. It is a divide, conquer and integrate problem” Extreme Programming Explained, Kent Beck
- 5. Delivery Is Hard Howdo we make sure our code works in production-like environments? ● Test the code in a production-like environment ● Use automated tests to verify correct business functionality and integration with other services ● Apply additional checks for security, compliance, etc. Solution: Continuous Delivery! “Continuous Delivery doesn't mean every change is deployed to production ASAP. It means every change is proven to be deployable at any time” Carl Cacum[1]
- 6. Cerner: Modeling Processesinto Pipelines https://content.pivotal.io/inspiring-use-cases/concourse-in-the-real-world-a-case-study-in-ci-cd-and-devops-greg-meyer-bryan-kelly-cerner
- 7.
- 8. Concourse CI Built onthe simple mechanics of resources, tasks, and jobs, Concourse presents a general approach to automation that makes it great for CI/CD
- 9. Cover w/ Image ConcourseCI 1. Configuration as Code 2. Workflow Visualization 3. Containerized Execution 4. Rapid Local iteration 5. Asynchronous workflows powered by resources
- 10. Cover w/ Image Pipelineas Code ● Pipelines are declared using the simple, composable primitives of: resources, jobs and tasks ● Compelex workflows codified as human- readable YML ● Codified and tracked under Source Control for traceability
- 11. Cover w/ Image WorkflowVisualization ● Green is Good! ● red indicates a problem ● yellow indicates a step is actively executing ● Teams quickly aligned on issues with context
- 12. Cover w/ Image ContainerizedExecution Rather than sharing state, every task runs in its own container, controlling its own dependencies. > test.sh
- 13. Cover w/ Image RapidLocal Iteration The fly execute command executes a task as a one-off build, with your local changes. This will run your code in exactly the same way it would run in your pipeline, without you having to repeatedly push broken commits until it works. When a job fails, you can also use fly execute with -j flag to run with the same inputs as the failed job. You can then replace an input with your local changes with -i to test if your fix is valid.
- 14. Cover w/ Image PipelinesPowered by Resources Concourse does not have a complex plugin system. Instead, relies on the concept of Resources Concourse Resources track versions of external artifacts used for CI/CD Resources can track any external entity by implementing the Resource API e.g. git repositories, Amazon S3 Buckets, Docker Images, or a custom implementation
- 15.
- 16. Concourse Resources 100+ OSSresources to external systems and tools (Community Resources)
- 17.
- 18. Dev Perf/Test OpsBiz Shift-Left: Break Pipeline Earlier Path to NoOps: Self-Healing, … Shift-Right: Tags, Deploys, Events Actionable Feedback Loops
- 19. Semi-continuous-deployment – goodbut not great Concourse CloudFoundry(Tag=Staging) CloudFoundry Tag=Production) AppTeam Manual RollbackManual ApprovalManual Approval Users Concourse
- 20. Unbreakable Pipeline Dynatrace Concourseresource Pushes Deployment Info to Dynatrace Entities Validate-via-monspec task Compares Builds and Approves/Rejects Pipeline Dynatrace Concourse resource Pushes Deployment Info to Dynatrace Entities Validate-via-monspec task Validates Production and Approves/Rejects Pipeline Build 6 Build 7 Production Production Auto-Approve! Auto-Reject! Auto-Approve! Auto-Reject!
- 21. Shifting Right: CloudFoundrymanifests used for Staging & Production: Validated in Dynatrace Staging Production and green Dynamically configured in Pipeline
- 22. Dynatrace Concourse Resource PullsInformation from Monspec Issues REST API request to Dynatrace Dynatrace Events REST API Pushes Event for Entities with Tag DeploymentGroup:Staging Shifting Right: Monitoring as Code (Monspec): Define Services and their Environments as Code
- 23. Shifting Right: Monitoringas Code (Monspec): Define Services and their Environments as Code smplmonspec.json
- 24. Shifting Right: Servicemetadata parsed via rules #1: Service renamed based on rules #2 Our DeploymentGroup tag #3 Our Deployment Event Created by Dynatrace Concourse Resource
- 25. Shifting Right: Processmetadata parsed via rules DT_CUSTOM_PROP CF Appname, transformed with naming rule
- 26. Shifting Right: PassDeployment Information to Deployed Entities Dynatrace Events REST API Dynatrace Concourse Resource Pulls Information from Monspec Issues REST API request to Dynatrace
- 27. Shifting Left: ValidateNonfunctional Requirements defined in Monspec!
- 28. Shifting Left: Monitoringas Code: Compare Metrics of Services of Different Environments/Builds Entity: SampleJSonService Environment: Staging Tag: DeploymentGroup:Staging Environment: Production Tag: DeploymentGroup:Production Compare: StagingToProduction Source: Staging; Compare: Prod Factor: Staging = 10% Slower Compare: StagingToProdYesterday Source: Staging; Compare: Prod Factor: 10%, Timeshift: 86400s Compare: StagingToStagingLastHour Source: Staging; Compare: Staging Factor: 0; Timeshift: 3600s Compare: StageToStageYesterday Source: Staging; Compare: Staging Factor: 0; Timeshift: 86400s Metrics: ResponseTime (Avg) Metrics: ResponseTime(Max) < 10s Metrics: FailureRate(Avg) Metrics: ResponseCount Factor: 90% Less vs Production Environment: Staging Environment: Production Source (Staging): 1.64ms Compare (Production): 1.41ms Threshold (+10%): 1.56ms Status: VIOLATION Pipeline Run: Validate Build with StagingToProduction Different Metrics Different Comparisons
- 29. Shifting Left: Automatethe Comparison: Trigger it for each Build and Automate Approval! Metrics Comparisons Entity Comparisons
- 30. Monitoring as Code:The Full Picture Environments: Tell us how we can detect these entities in Dynatrace Entity: What Entity do we want to validate?
- 31. Monitoring as Code:The Full Picture Comparision: Which environments do we compare and how!
- 32. Monitoring as Code:The Full Picture Metrics: Which Metrics, Aggregation, Upper/Lower Boundaries
- 33. More Resources Sample Pipelineshttps://github.com/akirasoft/spring-music
- 34.
- 35. Transforming How TheWorld Builds Software © Copyright 2017 Pivotal Software, Inc. All rights Reserved.