Showcasing istio-workspace through simple services

[bartoszmajsak]

We already cover use cases such as HTTP or gRPC communication through our e2e tests, but these are very simple examples that are useful for hello-world apps. Very often the first question we get from people is "how do you deal with the state". We should provide a set of examples demonstrating our approach to such problems. Additionally, this can serve as the dogfooding ground for the tool itself and also can result in new features.

Each app and technology stack imposes different challenges and solutions for "develop on prod without affecting others" so we cannot really think about a unified solution as of yet. What we can do instead is to offer good practices and approaches through examples that can help users adopt the tool.

New use cases

• database
• messaging (send/receive)

Approach

• new repository
• built using tekton / supported
• potentially included in the docs in "use cases" section
  • snippets can be added to show how e.g. header propagation can be done in app
• covered by test scenario "DSL"

[bartoszmajsak]

Things to look at/evaluate during this exercise:

• how things are visualized by kiali
• monitoring aspects

[bartoszmajsak]

Other use cases

• cache
• transaction
• sending emails
• config change
• secrets
• volumes
• deployments
  • spec
  • port binding

[bartoszmajsak]

• check Quarkus examples for inspiration