Dr. Kube und der Helm - Anatomie einer CD-Pipeline

Transcript

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3. 3
   Über 7 Stages must
   du gehen…
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   https://pxhere.com/de/photo/630731
   

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4. 4
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   Code
   Integration
   Test
   Manual
   Test
   Production
   master
   

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5. 5
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   Code
   Integration
   Test
   Manual
   Test
   Production
   master
   Integration
   Test
   Review
   Integration
   Test
   Review
   features/4711
   features/1337
   

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6. 6
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   Code
   Integration
   Test
   Manual
   Test
   Production
   master
   Integration
   Test
   Review
   Integration
   Test
   Review
   features/4711
   features/1337
   Local
   Development
   

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7. 7
   STEP 0: Local
   Development
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8. 8
   Optimize for fast roundtrips
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   A lot of innovation in the last year
   Old guard: skaffold, draft
   New kids on the block: tilt, garden, …
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9. 9
   STEP 1: Build
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10. 10
    Fresh environment on every build
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    Scalable infrastructure
    Use resources as you go
    Parallel Builds
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11. 11
    Possible solution: Docker-in-Docker (still need
    priviledged access to the linux kernel)
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    Evaluate alternative builders: kaniko, jib
    Mitigation: Split clusters between development and
    other stages
    Caveat: If building in cluster, look at serviceaccount,
    too!
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12. 12
    Step 2: Integration
    Test
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13. 13
    Deploy new instance of application and dependencies
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    Run black-box tests
    Evaluate application in production-like environment
    Destroy after test
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14. • Package manager for Kubernetes
    • Templating for needed Kubernetes
    objects
    • Manage dependencies
    • Rollout history
    • Now a CNCF incubator project
    • https://helm.sh
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15. • Create generic deployment
    descriptions
    • Replace configurable values with
    variables
    • Full power of go string templates
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16. • Keep track of rollouts:
    • Charts
    • Values
    • User
    • …
    • History
    • Rollback
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17. • Reference other charts
    • Atomic installation
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18. • Helm Hub
    • Lua Templates
    • Tiller-less Helm
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19. 19
    Step 3: Review
    Application
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20. 20
    Deploy new instance of application and dependencies
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    Manuel test of specific features of a branch
    Separated environment for product owners and testers
    Destroy after merge of branch
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21. 21
    Step 4: Production
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22. 22
    nicolas.byl@codecentric.de
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    http://www.twitter.com/NicolasByl
    

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