Demystifying CI/CD
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Imagine you’re getting ready to ship something…
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You press the big red button
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click
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silence
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Do you… a) Sweat and wait to see if it blows up
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Do you… a) Sweat and wait to see if it blows up b) Pack up, go home & enjoy your weekend
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It all boils down to automation.
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The green pastures of automation Image source: Forbes
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Image source: Horizon Zero Dawn
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Image source: Demotivational
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Timeline.jerdog.me IAmJerdog jerdog Director, DevRel & Community /in/jeremymeiss
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“DEVOPS”
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The DevOps Lifecycle ○ Plan Image source: C-Sharp Corner
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The DevOps Lifecycle ○ Plan ○ Code Image source: C-Sharp Corner
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The DevOps Lifecycle ○ Plan ○ Code ○ Build Image source: C-Sharp Corner
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The DevOps Lifecycle ○ ○ ○ ○ Image source: C-Sharp Corner Plan Code Build Test
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The DevOps Lifecycle ○ ○ ○ ○ ○ Image source: C-Sharp Corner Plan Code Build Test Release
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The DevOps Lifecycle ○ ○ ○ ○ ○ ○ Image source: C-Sharp Corner Plan Code Build Test Release Deploy
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The DevOps Lifecycle ○ ○ ○ ○ ○ ○ ○ Image source: C-Sharp Corner Plan Code Build Test Release Deploy Operate
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The DevOps Lifecycle ○ ○ ○ ○ ○ ○ ○ ○ Image source: C-Sharp Corner Plan Code Build Test Release Deploy Operate Monitor
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Continuous {Integration|Deployment}
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Software Development without CI/CD Image source: Oursky
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Software Development with CI/CD Image source: Oursky
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CI == Continuous Integration the practice of merging all developers’ working copies to a shared code repository Code Shared Code Repo CI/CD Runtime Test Scan for Vulnerabilities Build Website
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CI == Continuous Integration ○ Merge code changes often Code Shared Code Repo CI/CD Runtime Test Scan for Vulnerabilities Build Website
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CI == Continuous Integration ○ Merge code changes often ○ Run automated tests to validate builds Code Shared Code Repo CI/CD Runtime Test Scan for Vulnerabilities Build Website
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CI == Continuous Integration ○ Merge code changes often ○ Run automated tests to validate builds ○ Only integrate tested code into code base Code Shared Code Repo CI/CD Runtime Test Scan for Vulnerabilities Build Website
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CI == Continuous Integration ○ ○ ○ ○ Merge code changes often Run automated tests to validate builds Only integrate tested code into code base Changes frequently merged into release branches Code Shared Code Repo CI/CD Runtime Test Scan for Vulnerabilities Build Website
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CD == Continuous Deployment the practice of automatically deploying new software releases to target environments Build Website Server deployment Active Users
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Continuous Deployment ○ Faster release cycles Build Website Server Deployment Active Users
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Continuous Deployment ○ Faster release cycles ○ Low-risk releases Build Website Server Deployment Active Users
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Continuous Deployment ○ Faster release cycles ○ Low-risk releases ○ Higher quality Build Website Server Deployment Active Users
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Continuous Deployment ○ ○ ○ ○ Build Website Faster release cycles Low-risk releases Higher quality Lower costs Server Deployment Active Users
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Is CI/CD a TOOL?
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Are there benefits to CI/CD?
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CI/CD Benefits ○ ○ ○ ○ ○ ○ Improve team productivity & efficiency Accelerate speed to market Identify product/market fit Release higher quality, more stable products Increase customer satisfaction Keep devs happy and shipping code
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I feel the need… the need for SPEED! ○ Customers get access to new features faster ○ Company gets a faster ROI from new features
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Implementing CI/CD
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Make sure everyone is on the same page
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Always start small
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Do what works for you
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Always measure
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CI/CD Benchmarks for high performance Throughput Duration At will <10 minutes Success Rate
90% Mean Time to Recovery <1 hour
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Better CI/CD Practices ○ Make testing an integral part of the dev process
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Better CI/CD Practices ○ Make testing an integral part of the dev process ○ Ensure testing environment mirrors production
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Better CI/CD Practices ○ Make testing an integral part of the dev process ○ Ensure testing environment mirrors production ○ Use coding better practices, i.e. pair programming
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Full Report https://circle.ci/ssd2020
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Better CI/CD Practices ○ ○ ○ ○ Make testing an integral part of the dev process Ensure testing environment mirrors production Use coding better practices, i.e. pair programming Streamline the deploy workflow
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Streamline deploy
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Do not try to automate everything
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Proof of concept ○ ○ ○ ○ A rigorous testing practice Consistent software environments Training on continuous integration practices. Reports to measure key metrics.
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Timeline.jerdog.me Thank you. For feedback and swag: circle.ci/jeremy IAmJerdog jerdog /in/jeremymeiss
