container.training/slides/exercises/yaml-dockercoins-details.md

Exercise — Writing YAML

• We want to generate YAML manifests for the dockercoins app

• Reminder: it includes 5 Deployments and 4 Services

• Feel free to put everything in a single file, or one file per manifest

• The manifests can be:

  • authored (based on examples found in the Kubernetes docs or online)

  • generated (with kubectl create ... --dry-run -o yaml or some web app)

  • dumped (with kubectl get ... -o yaml) from existing resources

• Use whatever works best for you!

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Goal

• It should be possible to deploy dockercoins by doing:

  kubectl create namespace dockercoins
  kubectl apply --namespace dockercoins -f `...`
  

• Reminder: the argument given to -f can be a directory

  (in which case all the YAML files in the directory will be processed)

• Bonus: try to minimize the manifests by removing empty or optional fields

• Compare your manifests with the ones in the container.training repository