consul/agent/cache/request.go
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



---------

Co-authored-by: John Murret <john.murret@hashicorp.com>
2023-09-12 12:56:43 -07:00

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Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: BUSL-1.1
package cache
import (
"github.com/hashicorp/consul/agent/cacheshim"
)
// Request is a cacheable request.
//
// This interface is typically implemented by request structures in
// the agent/structs package.
//
//go:generate mockery --name Request --inpackage
type Request = cacheshim.Request
// RequestInfo represents cache information for a request. The caching
// framework uses this to control the behavior of caching and to determine
// cacheability.
//
// TODO(peering): finish ensuring everything that sets a Datacenter sets or doesn't set PeerName.
// TODO(peering): also make sure the peer name is present in the cache key likely in lieu of the datacenter somehow.
type RequestInfo = cacheshim.RequestInfo