consul/agent/structs/errors.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

63 lines
2.6 KiB
Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: BUSL-1.1
package structs
import (
"errors"
"strings"
)
const (
errNoLeader = "No cluster leader"
errNoDCPath = "No path to datacenter"
errDCNotAvailable = "Remote DC has no server currently reachable"
errNoServers = "No known Consul servers"
errNotReadyForConsistentReads = "Not ready to serve consistent reads"
errSegmentsNotSupported = "Network segments are not supported in this version of Consul"
errRPCRateExceeded = "RPC rate limit exceeded"
errServiceNotFound = "Service not found: "
errQueryNotFound = "Query not found"
errLeaderNotTracked = "Raft leader not found in server lookup mapping"
errConnectNotEnabled = "Connect must be enabled in order to use this endpoint"
errRateLimited = "Rate limit reached, try again later" // Note: we depend on this error message in the gRPC ConnectCA.Sign endpoint (see: isRateLimitError).
errNotPrimaryDatacenter = "not the primary datacenter"
errStateReadOnly = "CA Provider State is read-only"
)
var (
ErrNoLeader = errors.New(errNoLeader)
ErrNoDCPath = errors.New(errNoDCPath)
ErrNoServers = errors.New(errNoServers)
ErrNotReadyForConsistentReads = errors.New(errNotReadyForConsistentReads)
ErrSegmentsNotSupported = errors.New(errSegmentsNotSupported)
ErrRPCRateExceeded = errors.New(errRPCRateExceeded)
ErrDCNotAvailable = errors.New(errDCNotAvailable)
ErrQueryNotFound = errors.New(errQueryNotFound)
ErrLeaderNotTracked = errors.New(errLeaderNotTracked)
ErrConnectNotEnabled = errors.New(errConnectNotEnabled)
ErrRateLimited = errors.New(errRateLimited) // Note: we depend on this error message in the gRPC ConnectCA.Sign endpoint (see: isRateLimitError).
ErrNotPrimaryDatacenter = errors.New(errNotPrimaryDatacenter)
ErrStateReadOnly = errors.New(errStateReadOnly)
)
func IsErrNoDCPath(err error) bool {
return err != nil && strings.Contains(err.Error(), errNoDCPath)
}
func IsErrQueryNotFound(err error) bool {
return err != nil && strings.Contains(err.Error(), errQueryNotFound)
}
func IsErrNoLeader(err error) bool {
return err != nil && strings.Contains(err.Error(), errNoLeader)
}
func IsErrRPCRateExceeded(err error) bool {
return err != nil && strings.Contains(err.Error(), errRPCRateExceeded)
}
func IsErrServiceNotFound(err error) bool {
return err != nil && strings.Contains(err.Error(), errServiceNotFound)
}