Fix issues with empty sources
* Validate that each permission on traffic permissions resources has at least one source.
* Don't construct RBAC policies when there aren't any principals. This resulted in Envoy rejecting xDS updates with a validation error.
```
error=
| rpc error: code = Internal desc = Error adding/updating listener(s) public_listener: Proto constraint validation failed (RBACValidationError.Rules: embedded message failed validation | caused by RBACValidationError.Policies[consul-intentions-layer4-1]: embedded message failed validation | caused by PolicyValidationError.Principals: value must contain at least 1 item(s)): rules {
```
Convert more of the xRoutes features that were skipped in an earlier PR into ComputedRoutes and make them work:
- DestinationPolicy defaults
- more timeouts
- load balancer policy
- request/response header mutations
- urlrewrite
- GRPCRoute matches
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.
xRoute resources are not name-aligned with the Services they control. They
have a list of "parent ref" services that they alter traffic flow for, and they
contain a list of "backend ref" services that they direct that traffic to.
The ACLs should be:
- list: (default)
- read:
- ALL service:<parent_ref_service>:read
- write:
- ALL service:<parent_ref_service>:write
- ALL service:<backend_ref_service>:read
DestinationPolicy resources are name-aligned with the Service they control.
The ACLs should be:
- list: (default)
- read: service:<resource_name>:read
- write: service:<resource_name>:write
FailoverPolicy resources are name-aligned with the Service they control.
They also contain a list of possible failover destinations that are References
to other Services.
The ACLs should be:
- list: (default)
- read: service:<resource_name>:read
- write: service:<resource_name>:write + service:<destination_name>:read (for any destination)
The ACLs.Read hook for a resource only allows for the identity of a
resource to be passed in for use in authz consideration. For some
resources we wish to allow for the current stored value to dictate how
to enforce the ACLs (such as reading a list of applicable services from
the payload and allowing service:read on any of them to control reading the enclosing resource).
This change update the interface to usually accept a *pbresource.ID,
but if the hook decides it needs more data it returns a sentinel error
and the resource service knows to defer the authz check until after
fetching the data from storage.
* add multiple upstream ports to golden file test for destination builder
* NET-5131 - add unit tests for multiple ported upstreams
* fix merge conflicts
* add namespace proto and registration
* fix proto generation
* add missing copywrite headers
* fix proto linter errors
* fix exports and Type export
* add mutate hook and more validation
* add more validation rules and tests
* Apply suggestions from code review
Co-authored-by: Semir Patel <semir.patel@hashicorp.com>
* fix owner error and add test
* remove ACL for now
* add tests around space suffix prefix.
* only fait when ns and ap are default, add test for it
---------
Co-authored-by: Semir Patel <semir.patel@hashicorp.com>
Ensure that configuring a FailoverPolicy for a service that is reachable via a xRoute or a direct upstream causes an envoy aggregate cluster to be created for the original cluster name, but with separate clusters for each one of the possible destinations.
Adding coauthors who mobbed/paired at various points throughout last week.
Co-authored-by: Dan Stough <dan.stough@hashicorp.com>
Co-authored-by: Iryna Shustava <iryna@hashicorp.com>
Co-authored-by: John Murret <john.murret@hashicorp.com>
Co-authored-by: Michael Zalimeni <michael.zalimeni@hashicorp.com>
Co-authored-by: Ashwin Venkatesh <ashwin@hashicorp.com>
Co-authored-by: Michael Wilkerson <mwilkerson@hashicorp.com>
Previously, when using implicit upstreams, we'd build outbound listener per destination instead of one for all destinations. This will result in port conflicts when trying to send this config to envoy.
This PR also makes sure that leaf and root references are always added (before we would only add it if there are inbound non-mesh ports).
Also, black-hole traffic when there are no inbound ports other than mesh
HTTPRoute, GRPCRoute, TCPRoute, and Upstreams resources contain inner
Reference fields. We want to ensure that components of those reference Tenancy
fields left unspecified are defaulted using the tenancy of the enclosing resource.
As the underlying helper being used to do the normalization calls the function
modified in #18822, it also means that the PeerName field will be set to "local" for
now automatically to avoid "local" != "" issues downstream.
FailoverPolicy resources contain inner Reference fields. We want to ensure
that components of those reference Tenancy fields left unspecified are defaulted
using the tenancy of the enclosing FailoverPolicy resource.
As the underlying helper being used to do the normalization calls the function
modified in #18822, it also means that the PeerName field will be set to "local" for
now automatically to avoid "local" != "" issues downstream.
Reworks the sidecar controller to accept ComputedRoutes as an input and use it to generate appropriate ProxyStateTemplate resources containing L4/L7 mesh configuration.
When one resource contains an inner field that is of type *pbresource.Reference we want the
Tenancy to be reasonably defaulted by the following rules:
1. The final values will be limited by the scope of the referenced type.
2. Values will be inferred from the parent's tenancy, and if that is insufficient then using
the default tenancy for the type's scope.
3. Namespace will only be used from a parent if the reference and the parent share a
partition, otherwise the default namespace will be used.
Until we tackle peering, this hard codes an assumption of peer name being local. The
logic for defaulting may need adjustment when that is addressed.
* 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>
This new controller produces an intermediate output (ComputedRoutes) that is meant to summarize all relevant xRoutes and related mesh configuration in an easier-to-use format for downstream use to construct the ProxyStateTemplate.
It also applies status updates to the xRoute resource types to indicate that they are themselves semantically valid inputs.
R.B. Boyer
Chris S. Kim
Eric Haberkorn
John Murret
skpratt
Iryna Shustava
Derek Menteer
Semir Patel
Matt Keeler
Dhia Ayachi
Nitya Dhanushkodi