pub fn register_default_backends()Expand description
Registers the feature-enabled backend providers (backend-msb, backend-docker)
with rightsize::backends. Runs its body once per process, and the core
registry is itself idempotent by provider name, so calling this again — or also
registering a provider by hand — is harmless.
Every module’s start calls this on its way into the core, so consumers of this
crate write no backend wiring at all. Call it yourself only when the first
container your process starts is a plain rightsize::Container rather than one
of these modules (backend resolution happens at that first start and is cached
for the life of the process).