sslmode=require is hard coded in zalando-operator initDbConn() method

Please, answer some short questions which should help us to understand your problem / question better?

• Which image of the operator are you using? e.g. registry.opensource.zalan.do/acid/postgres-operator:v1.10.0
• Where do you run it - cloud or metal? Kubernetes or OpenShift? k8s
• Are you running Postgres Operator in production? yes
• Type of issue? question

In pgConnectionString() func that provides string to initDbConnWithName() sslmode=require is hard-coded, that means zalando-operator will not able to init db connection to non-SSL db cause connection will fail.

So, the question is: can I prepare a pull request to make this option configurable?
Or is there workaround how to avoid and make operator create and sync up clusters that set up with SSL disabled?

Start in pkg/cluster/database.go at pgConnectionString() and follow how its result is passed to initDbConnWithName(). Reproduce the connection failure against a non-SSL PostgreSQL database and trace where the sslmode value is fixed; done means the operator can initialize and sync a cluster with SSL disabled without breaking the existing connection behavior.