Wire the ComputedImplicitDestinations resource into the sidecar controller, replacing the inline version already present.
Also:
- Rewrite the controller to use the controller cache
- Rewrite it to no longer depend on ServiceEndpoints
- Remove the fetcher and (local) cache abstraction
* Use a full EndpointRef on ComputedRoutes targets instead of just the ID
Today, the `ComputedRoutes` targets have the appropriate ID set for their `ServiceEndpoints` reference; however, the `MeshPort` and `RoutePort` are assumed to be that of the target when adding the endpoints reference in the sidecar's `ProxyStateTemplate`.
This is problematic when the target lives behind a `MeshGateway` and the `Mesh/RoutePort` used in the sidecar's `ProxyStateTemplate` should be that of the `MeshGateway` instead of the target.
Instead of assuming the `MeshPort` and `RoutePort` when building the `ProxyStateTemplate` for the sidecar, let's just add the full `EndpointRef` -- including the ID and the ports -- when hydrating the computed destinations.
* Make sure the UID from the existing ServiceEndpoints makes it onto ComputedRoutes
* Update test assertions
* Undo confusing whitespace change
* Remove one-line function wrapper
* Use plural name for endpoints ref
* Add constants for gateway name, kind and port names
[OG Author: michael.zalimeni@hashicorp.com, rebase needed a separate PR]
* v2: support virtual port in Service port references
In addition to Service target port references, allow users to specify a
port by stringified virtual port value. This is useful in environments
such as Kubernetes where typical configuration is written in terms of
Service virtual ports rather than workload (pod) target port names.
Retaining the option of referencing target ports by name supports VMs,
Nomad, and other use cases where virtual ports are not used by default.
To support both uses cases at once, we will strictly interpret port
references based on whether the value is numeric. See updated
`ServicePort` docs for more details.
* v2: update service ref docs for virtual port support
Update proto and generated .go files with docs reflecting virtual port
reference support.
* v2: add virtual port references to L7 topo test
Add coverage for mixed virtual and target port references to existing
test.
* update failover policy controller tests to work with computed failover policy and assert error conditions against FailoverPolicy and ComputedFailoverPolicy resources
* accumulate services; don't overwrite them in enterprise
---------
Co-authored-by: Michael Zalimeni <michael.zalimeni@hashicorp.com>
Co-authored-by: R.B. Boyer <rb@hashicorp.com>
xRoute resource types contain a slice of parentRefs to services that they
manipulate traffic for. All xRoutes that have a parentRef to given Service
will be merged together to generate a ComputedRoutes resource
name-aligned with that Service.
This means that a write of an xRoute with 2 parent ref pointers will cause
at most 2 reconciles for ComputedRoutes.
If that xRoute's list of parentRefs were ever to be reduced, or otherwise
lose an item, that subsequent map event will only emit events for the current
set of refs. The removed ref will not cause the generated ComputedRoutes
related to that service to be re-reconciled to omit the influence of that xRoute.
To combat this, we will store on the ComputedRoutes resource a
BoundResources []*pbresource.Reference field with references to all
resources that were used to influence the generated output.
When the routes controller reconciles, it will use a bimapper to index this
influence, and the dependency mappers for the xRoutes will look
themselves up in that index to discover additional (former) ComputedRoutes
that need to be notified as well.
R.B. Boyer