* Include SNI + root PEMs from peered cluster on terminating gw filter chain
This allows an external service registered on a terminating gateway to be exported to and reachable from a peered cluster
* Abstract existing logic into re-usable function
* Regenerate golden files w/ new listener logic
* Add changelog entry
* Use peering bundles that are stable across test runs
* Fix xDS deadlock due to syncLoop termination.
This fixes an issue where agentless xDS streams can deadlock permanently until
a server is restarted. When this issue occurs, no new proxies are able to
successfully connect to the server.
Effectively, the trigger for this deadlock stems from the following return
statement:
https://github.com/hashicorp/consul/blob/v1.18.0/agent/proxycfg-sources/catalog/config_source.go#L199-L202
When this happens, the entire `syncLoop()` terminates and stops consuming from
the following channel:
https://github.com/hashicorp/consul/blob/v1.18.0/agent/proxycfg-sources/catalog/config_source.go#L182-L192
Which results in the `ConfigSource.cleanup()` function never receiving a
response and holding a mutex indefinitely:
https://github.com/hashicorp/consul/blob/v1.18.0/agent/proxycfg-sources/catalog/config_source.go#L241-L247
Because this mutex is shared, it effectively deadlocks the server's ability to
process new xDS streams.
----
The fix to this issue involves removing the `chan chan struct{}` used like an
RPC-over-channels pattern and replacing it with two distinct channels:
+ `stopSyncLoopCh` - indicates that the `syncLoop()` should terminate soon. +
`syncLoopDoneCh` - indicates that the `syncLoop()` has terminated.
Splitting these two concepts out and deferring a `close(syncLoopDoneCh)` in the
`syncLoop()` function ensures that the deadlock above should no longer occur.
We also now evict xDS connections of all proxies for the corresponding
`syncLoop()` whenever it encounters an irrecoverable error. This is done by
hoisting the new `syncLoopDoneCh` upwards so that it's visible to the xDS delta
processing. Prior to this fix, the behavior was to simply orphan them so they
would never receive catalog-registration or service-defaults updates.
* Add changelog.
* Shuffle the list of servers returned by `pbserverdiscovery.WatchServers`.
This randomizes the list of servers to help reduce the chance of clients
all connecting to the same server simultaneously. Consul-dataplane is one
such client that does not randomize its own list of servers.
* Fix potential goroutine leak in xDS recv loop.
This commit ensures that the goroutine which receives xDS messages from
proxies will not block forever if the stream's context is cancelled but
the `processDelta()` function never consumes the message (due to being
terminated).
* Add changelog.
* disable terminating gateway auto host rewrite
* add changelog
* clean up unneeded additional snapshot fields
* add new field to docs
* squash
* fix test
Add case insensitive param on service route match
This commit adds in a new feature that allows service routers to specify that
paths and path prefixes should ignore upper / lower casing when matching URLs.
Co-authored-by: Derek Menteer <105233703+hashi-derek@users.noreply.github.com>
* NET-6945 - Replace usage of deprecated Envoy field envoy.config.core.v3.HeaderValueOption.append
* update proto for v2 and then update xds v2 logic
* add changelog
* Update 20078.txt to be consistent with existing changelog entries
* swap enum values tomatch envoy.
* NET-6946 - Replace usage of deprecated Envoy field envoy.config.route.v3.HeaderMatcher.safe_regex_match
* removing unrelated changes
* update golden files
* do not set engine type
When a large number of upstreams are configured on a single envoy
proxy, there was a chance that it would timeout when waiting for
ClusterLoadAssignments. While this doesn't always immediately cause
issues, consul-dataplane instances appear to consistently drop
endpoints from their configurations after an xDS connection is
re-established (the server dies, random disconnect, etc).
This commit adds an `xds_fetch_timeout_ms` config to service registrations
so that users can set the value higher for large instances that have
many upstreams. The timeout can be disabled by setting a value of `0`.
This configuration was introduced to reduce the risk of causing a
breaking change for users if there is ever a scenario where endpoints
would never be received. Rather than just always blocking indefinitely
or for a significantly longer period of time, this config will affect
only the service instance associated with it.
This fixes the following race condition:
- Send update endpoints
- Send update cluster
- Recv ACK endpoints
- Recv ACK cluster
Prior to this fix, it would have resulted in the endpoints NOT existing in
Envoy. This occurred because the cluster update implicitly clears the endpoints
in Envoy, but we would never re-send the endpoint data to compensate for the
loss, because we would incorrectly ACK the invalid old endpoint hash. Since the
endpoint's hash did not actually change, they would not be resent.
The fix for this is to effectively clear out the invalid pending ACKs for child
resources whenever the parent changes. This ensures that we do not store the
child's hash as accepted when the race occurs.
An escape-hatch environment variable `XDS_PROTOCOL_LEGACY_CHILD_RESEND` was
added so that users can revert back to the old legacy behavior in the event
that this produces unknown side-effects. Visit the following thread for some
extra context on why certainty around these race conditions is difficult:
https://github.com/envoyproxy/envoy/issues/13009
This bug report and fix was mostly implemented by @ksmiley with some minor
tweaks.
Co-authored-by: Keith Smiley <ksmiley@salesforce.com>
* Add CE version of gateway-upstream-disambiguation
* Use NamespaceOrDefault and PartitionOrDefault
* Add Changelog entry
* Remove the unneeded reassignment
* Use c.ID()
* migrate expose checks and paths tests to resources_test.go
* fix failing expose paths tests
* fix the way endpoint resources get created to make expose tests pass.
* remove endpoint resources that are already inlined on local_app clusters
* renaiming and comments
* migrate remaining service mesh tests to resources_test.go
* cleanup
* update proxystateconverter to skip ading alpn to clusters and listener filterto match v1 behavior
* migrate expose checks and paths tests to resources_test.go
* fix failing expose paths tests
* fix the way endpoint resources get created to make expose tests pass.
* wip
* remove endpoint resources that are already inlined on local_app clusters
* renaiming and comments
* cover all protocols in local_app golden tests
* fix xds tests
* updating latest
* fix broken test
* add sorting of routers to TestBuildLocalApp to get rid of the flaking
* cover all protocols in local_app golden tests
* cover all protocols in local_app golden tests
* cover all protocols in local_app golden tests
* process envoy resource by walking the map. use a map rather than array for envoy resource to prevent duplication.
* cleanup. doc strings.
* update to latest
* fix broken test
* update tests after adding sorting of routers in local_app builder tests
* do not make endpoints for local_app
* fix catalog destinations only by creating clusters for any cluster not already created by walking the graph.
* Configure TestAllResourcesFromSnapshot to run V2 tests
* wip
* fix processing of failover groups
* add endpoints and clusters for any clusters that were not created from walking the listener -> path
* fix xds v2 golden files for clusters to include failover group clusters
* 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>
Ensure LB policy set for locality-aware routing (CE)
`overprovisioningFactor` should be overridden with the expected value
(100,000) when there are multiple endpoint groups. Update code and
tests to enforce this.
This is an Enterprise feature. This commit represents the CE portions of
the change; tests are added in the corresponding `consul-enterprise`
change.
* 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
* Add InboundPeerTrustBundle maps to Terminating Gateway
* Add notify and cancelation of watch for inbound peer trust bundles
* Pass peer trust bundles to the RBAC creation function
* Regenerate Golden Files
* add changelog, also adds another spot that needed peeredTrustBundles
* Add basic test for terminating gateway with peer trust bundle
* Add intention to cluster peered golden test
* rerun codegen
* update changelog
* really update the changelog
---------
Co-authored-by: Melisa Griffin <melisa.griffin@hashicorp.com>
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 {
```
Nathan Coleman
Derek Menteer
sarahalsmiller
skpratt
Chris S. Kim
Matt Keeler
Lord-Y
John Murret
Nitya Dhanushkodi
Thomas Eckert
Dhia Ayachi
Michael Zalimeni
Andrew Stucki
John Maguire
Eric Haberkorn
Iryna Shustava