Implement Async Bindings
srueg opened this issue · 0 comments
Summary
As a service broker user
I want bindings to report an accurate status
So that I can rely on this status to know if a binding is ready and usable
Context
Currently bindings are always done synchronously. Using the accepts_incomplete query parameter a client can allow async bindings. Especially if it takes several minutes for the binding to become ready (e.g. user/grant provisioned) it's helpful to reflect the current state of a binding: https://github.com/openservicebrokerapi/servicebroker/blob/master/spec.md#polling-last-operation-for-service-bindings
It's important to still support sync bindings as well since not all clients support async bindings yet.
Out of Scope
- List aspects that are explicitly not part of this feature
Further links
- https://github.com/openservicebrokerapi/servicebroker/blob/master/spec.md#polling-last-operation-for-service-bindings
- https://github.com/openservicebrokerapi/servicebroker/blob/master/spec.md#request-creating-a-service-binding
Acceptance criteria
Given a client specifies accepts_incomplete=true
When a binding is created
Then it's being done in an asynchronous manner and the status is reported
Implementation Ideas
- Same as the implementation of async instance provisioning
- Create the Composite instance
- Poll the composite's status via
/last_operation - Return credentials once the composite is ready