This is a redesign of my first attampt to make a database operator: https://github.com/kabisa/postgresdb-operator
The goal of this operator is to provide databases for preview environments. It expects that there's already a DbServer available. This operator does not and (in the foreseable future) will not create Database Servers, RDS instances or absolve you of your DBA duties.
Mainly:
- Ansible was slow. Every step in Ansible takes quite some time. And there were quite a few steps to go through with ansible. Golang however is a lot faster. Ansible was resource heavy. Golang is lean and nimble.
- I learned that Ansible, and in particular
Yaml, is not well suited to implement logic. It's great that I didn't have to think about how to apply the required changes in Postgres. But what was really painful was to gather state information and make reconcilation decisions.
But also:
- I wanted a good project to learn Golang
- I believe preview environments are important
- By using the name
DbOperatorI give myself the option to support other Databases as well in the future. For now however, the code does not support different databases. - I thought it was a cool project to do (still do)