consul/internal/resource/mappers/bimapper
Nitya Dhanushkodi 78b170ad50
xds controller: setup watches for and compute leaf cert references in ProxyStateTemplate, and wire up leaf cert manager dependency (#18756)
* Refactors the leafcert package to not have a dependency on agent/consul and agent/cache to avoid import cycles. This way the xds controller can just import the leafcert package to use the leafcert manager.

The leaf cert logic in the controller:
* Sets up watches for leaf certs that are referenced in the ProxyStateTemplate (which generates the leaf certs too).
* Gets the leaf cert from the leaf cert cache
* Stores the leaf cert in the ProxyState that's pushed to xds
* For the cert watches, this PR also uses a bimapper + a thin wrapper to map leaf cert events to related ProxyStateTemplates

Since bimapper uses a resource.Reference or resource.ID to map between two resource types, I've created an internal type for a leaf certificate to use for the resource.Reference, since it's not a v2 resource.
The wrapper allows mapping events to resources (as opposed to mapping resources to resources)

The controller tests:
Unit: Ensure that we resolve leaf cert references
Lifecycle: Ensure that when the CA is updated, the leaf cert is as well

Also adds a new spiffe id type, and adds workload identity and workload identity URI to leaf certs. This is so certs are generated with the new workload identity based SPIFFE id.

* Pulls out some leaf cert test helpers into a helpers file so it
can be used in the xds controller tests.
* Wires up leaf cert manager dependency
* Support getting token from proxytracker
* Add workload identity spiffe id type to the authorize and sign functions



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Co-authored-by: John Murret <john.murret@hashicorp.com>
2023-09-12 12:56:43 -07:00
..
bimapper.go xds controller: setup watches for and compute leaf cert references in ProxyStateTemplate, and wire up leaf cert manager dependency (#18756) 2023-09-12 12:56:43 -07:00
bimapper_test.go resource: Require scope for resource registration (#18635) 2023-09-01 09:44:53 -05:00