A common theme with database operators that bugs me...

• labs

  1 4 0.0 Go
  

Cool! I would be interested in knowing how it goes. From experience one thing I would like to mention is to give due consideration on how you model the Spec properties of your Custom Resource. Say, for user creation, you could take just user names as input or you could take the actual command to create user as input. If you do latter then the Operator essentially just acts like a pass-through for running whatever commands that are provided in the Spec. While this might seem appealing, especially since you are targeting multiple different databases, it is also problematic since such an approach is not 'declarative'. For a purely declarative approach you want to just take the names of the users to be created as input and not the actual command. The command should be part of the Operator's implementation. Advantage of such a declarative approach is that if say the Custom Resource users were to re-apply a Custom Resource, then your Operator will be easily able to determine if from the provided usernames, which ones already exist in the underlying database and which ones need to be added new. Btw, the reason I say from experience is because we made this mistake while implementing our Postgres Operator. Here is an example Custom Resource YAML from our Operator for reference - https://github.com/cloud-ark/labs/blob/master/postgres-crd-v2/artifacts/examples/add-user.yaml . Originally we were taking complete commands as input and ran into problem when determining the diffs.

• kubeplus

  38 602 7.9 Go

  Kubernetes Operator to create Multi-Instance Multi-tenancy (SaaS) from Helm charts

  

Also, here are some Operator development guidelines that might come in handy while you develop your Operator: https://github.com/cloud-ark/kubeplus/blob/master/Guidelines.md

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

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