Pre-deployment validation only WARNED when a data-sourced attribute had no
connection binding, so an instance with unresolved bindings still passed IsValid
and could deploy. There was also no check that a binding resolves to a connection
that actually exists at the target site.
- ValidationService.Validate gains an opt-in `enforceConnectionBindings` flag
(default false) plus a `siteConnectionNames` set. Default-false keeps the
template DESIGN-TIME path (ManagementActor.HandleValidateTemplate) non-blocking,
since bindings are legitimately set later at instance/deploy time. The DEPLOY
path (FlatteningPipeline) opts in (true) so:
* a data-sourced attribute with no binding is now a deploy-gating Error;
* a binding to a connection that does not exist on the target site is an Error.
Static (non-data-sourced) attributes are never flagged.
- FlatteningPipeline computes the site-connection-names set from the loaded site
data connections (mirroring M2.1's alarmCapableConnectionNames) and threads it in.
- Tests: TemplateEngine.Tests covers design-time warning / deploy-time error /
static-ok / exists-at-site / non-existent-connection. New
FlatteningPipelineConnectionBindingTests proves the deploy path enforces it.
Mark M2.7 + M2.8 completed in the plan task tracker.
Joseph Doherty