* test: add missing tests for read resource namespace
* refactor: remove redundant test
* refactor: rename import aliases
* fix: typo var name
* refctor: remove another redundant test
* xds: Ensure v2 route match is populated for gRPC
Similar to HTTP, ensure that route match config (which is required by
Envoy) is populated when default values are used.
Because the default matches generated for gRPC contain a single empty
`GRPCRouteMatch`, and that proto does not directly support prefix-based
config, an interpretation of the empty struct is needed to generate the
same output that the `HTTPRouteMatch` is explicitly configured to
provide in internal/mesh/internal/controllers/routes/generate.go.
* xds: Ensure protocol set for gRPC resources
Add explicit protocol in `ProxyStateTemplate` builders and validate it
is always set on clusters. This ensures that HTTP filters and
`http2_protocol_options` are populated in all the necessary places for
gRPC traffic and prevents future unintended omissions of non-TCP
protocols.
Co-authored-by: John Murret <john.murret@hashicorp.com>
---------
Co-authored-by: John Murret <john.murret@hashicorp.com>
* NET-5397 - wire up golden tests from sidecar-proxy controller for xds controller and xdsv2
* WIP
* WIP
* everything matching except leafCerts. need to mock those
* single port destinations working except mixed destinations
* golden test input to xds controller tests for destinations
* proposed fix for failover group naming errors
* clean up test to use helper.
* clean up test to use helper.
* fix test file
* add docstring for test function.
* add docstring for test function.
* fix linting error
* fixing test after route fix merged into main
* first source test works
* WIP
* modify all source files
* source tests pass
* fixing tests after bug fix in main
* NET-5397 - wire up golden tests from sidecar-proxy controller for xds controller and xdsv2
* WIP
* WIP
* everything matching except leafCerts. need to mock those
* single port destinations working except mixed destinations
* golden test input to xds controller tests for destinations
* proposed fix for failover group naming errors
* clean up test to use helper.
* clean up test to use helper.
* fix test file
* add docstring for test function.
* add docstring for test function.
* fix linting error
* fixing test after route fix merged into main
To properly enforce writes on resources that have workload selectors with prefixes, we need another service authorization rule that allows us to check whether read is allowed within a given prefix. Specifically we need to only allow writes if the policy prefix allows for a wider set of names than the prefix selector on the resource. We should also not allow policies with exact names for prefix matches.
Part of [NET-3993]
When testing adding http probes to apps, I ran into some issues which I fixed here:
- The listener should be listening on the exposed listener port, updated that.
- The listener and route names were pointing to the path of the exposed path. In my test, the path was "/" resulting in an empty string path. Also, the path may not be unique across exposed path listeners, so I decided to use the path+exposed port as the unique identifier.
This change adds ACL hooks to the remaining catalog and mesh resources, excluding any computed ones. Those will for now continue using the default operator:x permissions.
It refactors a lot of the common testing functions so that they can be re-used between resources.
There are also some types that we don't yet support (e.g. virtual IPs) that this change adds ACL hooks to for future-proofing.
This implements the Filter field on pbcatalog.WorkloadSelector to be
a post-fetch in-memory filter using the https://github.com/hashicorp/go-bexpr
expression language to filter resources based on their envelope metadata fields.
All existing usages of WorkloadSelector should be able to make use of the filter.
* xdsv2: support l7 by adding xfcc policy/headers, tweaking routes, and make a bunch of listeners l7 tests pass
* sidecarproxycontroller: add l7 local app support
* trafficpermissions: make l4 traffic permissions work on l7 workloads
* rename route name field for consistency with l4 cluster name field
* resolve conflicts and rebase
* fix: ensure route name is used in l7 destination route name as well. previously it was only in the route names themselves, now the route name and l7 destination route name line up
Sometimes workloads could come with unspecified protocols such as when running on Kubernetes. Currently, if this is the case, we will just default to tcp protocol.
However, to make sidecar-proxy controller work with l7 protocols we should instead inherit the protocol from service. This change adds tracking for services that a workload is part of and attempts to inherit the protocol whenever services a workload is part of doesn't have conflicting protocols.
This change builds on #19043 and #19067 and updates the sidecar controller to use those computed resources. This achieves several benefits:
* The cache is now simplified which helps us solve for previous bugs (such as multiple Upstreams/Destinations targeting the same service would overwrite each other)
* We no longer need proxy config cache
* We no longer need to do merging of proxy configs as part of the controller logic
* Controller watches are simplified because we no longer need to have complex mapping using cache and can instead use the simple ReplaceType mapper.
It also makes several other improvements/refactors:
* Unifies all caches into one. This is because originally the caches were more independent, however, now that they need to interact with each other it made sense to unify them where sidecar proxy controller uses one cache with 3 bimappers
* Unifies cache and mappers. Mapper already needed all caches anyway and so it made sense to make the cache do the mapping also now that the cache is unified.
* Gets rid of service endpoints watches. This was needed to get updates in a case when service's identities have changed and we need to update proxy state template's spiffe IDs for those destinations. This will however generate a lot of reconcile requests for this controller as service endpoints objects can change a lot because they contain workload's health status. This is solved by adding a status to the service object tracking "bound identities" and have service endpoints controller update it. Having service's status updated allows us to get updates in the sidecar proxy controller because it's already watching service objects
* Add a watch for workloads. We need it so that we get updates if workload's ports change. This also ensures that we update cached identities in case workload's identity changes.
This commit adds a new type ComputedDestinations that will contain all destinations from any Destinations resources and will be name-aligned with a workload. This also adds an explicit-destinations controller that computes these resources.
This is needed to simplify the tracking we need to do currently in the sidecar-proxy controller and makes it easier to query all explicit destinations that apply to a workload.
* Introduce a new type `ComputedProxyConfiguration` and add a controller for it. This is needed for two reasons. The first one is that external integrations like kubernetes may need to read the fully computed and sorted proxy configuration per workload. The second reasons is that it makes sidecar-proxy controller logic quite a bit simpler as it no longer needs to do this.
* Generalize workload selection mapper and fix a bug where it would delete IDs from the tree if only one is left after a removal is done.
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
Poonam Jadhav
Michael Zalimeni
John Murret
Iryna Shustava
Dhia Ayachi
Nitya Dhanushkodi
Eric Haberkorn
Semir Patel
R.B. Boyer
Ashwin Venkatesh
Chris S. Kim
Matt Keeler
skpratt