OpenShift: Developer productivity booster

It covers main OpenShift advantages from development process perspective

Transcript

1. OpenShift: Developer
   Productivity Booster
   Alexey Novakov, Ultra Tendency
   

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2. What is it?
   • Customized version of K8s (Origin Kubernetes Distribution)
   • Additional APIs (resources)
   • Nice UI, better than any Cloud provides has
   • Built-in image build/deploy (light CI/CD)
   • Developed by
   Helps a lot
   

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3. APIs
   • Additional Kubernetes resources:
   • BuildConfig
   • ImageStream
   • DeploymentConfig
   • Route
   

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4. $ oc
   OpenShift Client
   This client helps you develop, build, deploy, and run your applications on any
   OpenShift or Kubernetes compatible
   platform. It also includes the administrative commands for managing a cluster
   under the 'adm' subcommand.
   To create a new application, login to your server and then run new-app:
   oc login https://mycluster.mycompany.com
   oc new-app centos/ruby-25-centos7~https://github.com/sclorg/ruby-ex.git
   oc logs -f bc/ruby-ex
   oc - includes kubectl plus specific OpenShift commands
   

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5. BuildConfig resource
   Tag it
   Sources location
   Base image
   WebHook to start
   new build
   

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6. BuildConfig gives you
   basic CI/CD tool in few
   minutes...
   

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7. DeploymentConfig resource
   Like standard Deployment resource plus:
   - Automatic rollbacks
   - Triggers
   - Lifecycle Hooks
   - Custom Strategies
   Triggers new
   deployment upon
   new image version
   

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8. DeploymentConfig gives you
   Coninues Deployment skipping
   tedious kubetcl patch command
   

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9. ImageStream resource
   • OpenShift comes with built-in image registry
   • ImageStream represents a view of image repository
   • Can be used with DeploymentConfig, BuildConfig
   • Usually created with: oc new-build ...
   docker-registry.default.svc:5000//base-centos7
   

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10. Route resource
    

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11. Route resource
    Feature Ingress on OpenShift Route on OpenShift
    Standard Kubernetes object X
    External access to services X X
    Persistent (sticky) sessions X X
    Load-balancing strategies (e.g. round robin) X X
    Rate-limit and throttling X X
    IP whitelisting X X
    TLS edge termination for improved security X X
    TLS re-encryption for improved security X
    TLS passthrough for improved security X
    Multiple weighted backends (split traffic) X
    Generated pattern-based hostnames X
    Wildcard domains X
    

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12. Application Catalog (Templates)
    

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13. Template resource
    Like light version of Helm: parameters, variables
    

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14. Thanks! Questions?
    Twitter: @alexey_novakov GitHub: https://github.com/novakov-alexey
    

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