Add grpc keepalive configuration. (#19339)
Prior to the introduction of this configuration, grpc keepalive messages were
sent after 2 hours of inactivity on the stream. This posed issues in various
scenarios where the server-side xds connection balancing was unaware that envoy
instances were uncleanly killed / force-closed, since the connections would
only be cleaned up after ~5 minutes of TCP timeouts occurred. Setting this
config to a 30 second interval with a 20 second timeout ensures that at most,
it should take up to 50 seconds for a dead xds connection to be closed.
* Fix namespaced peer service updates / deletes.
This change fixes a function so that namespaced services are
correctly queried when handling updates / deletes. Prior to this
change, some peered services would not correctly be un-exported.
* Add changelog.
This change enables workflows where you are reapplying a resource that should have an owner ref to publish modifications to the resources data without performing a read to figure out the current owner resource incarnations UID.
Basically we want workflows similar to `kubectl apply` or `consul config write` to be able to work seamlessly even for owned resources.
In these cases the users intention is to have the resource owned by the “current” incarnation of the owner resource.
Fix issue with peer stream node cleanup.
This commit encompasses a few problems that are closely related due to their
proximity in the code.
1. The peerstream utilizes node IDs in several locations to determine which
nodes / services / checks should be cleaned up or created. While VM deployments
with agents will likely always have a node ID, agentless uses synthetic nodes
and does not populate the field. This means that for consul-k8s deployments, all
services were likely bundled together into the same synthetic node in some code
paths (but not all), resulting in strange behavior. The Node.Node field should
be used instead as a unique identifier, as it should always be populated.
2. The peerstream cleanup process for unused nodes uses an incorrect query for
node deregistration. This query is NOT namespace aware and results in the node
(and corresponding services) being deregistered prematurely whenever it has zero
default-namespace services and 1+ non-default-namespace services registered on
it. This issue is tricky to find due to the incorrect logic mentioned in #1,
combined with the fact that the affected services must be co-located on the same
node as the currently deregistering service for this to be encountered.
3. The stream tracker did not understand differences between services in
different namespaces and could therefore report incorrect numbers. It was
updated to utilize the full service name to avoid conflicts and return proper
results.
* Fix straggler from renaming Register->RegisterTypes
* somehow a lint failure got through previously
* Fix lint-consul-retry errors
* adding in fix for success jobs getting skipped. (#17132)
* Temporarily disable inmem backend conformance test to get green pipeline
* Another test needs disabling
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Co-authored-by: John Murret <john.murret@hashicorp.com>
Prior to this commit, all peer services were transmitted as connect-enabled
as long as a one or more mesh-gateways were healthy. With this change, there
is now a difference between typical services and connect services transmitted
via peering.
A service will be reported as "connect-enabled" as long as any of these
conditions are met:
1. a connect-proxy sidecar is registered for the service name.
2. a connect-native instance of the service is registered.
3. a service resolver / splitter / router is registered for the service name.
4. a terminating gateway has registered the service.
Protobuf Refactoring for Multi-Module Cleanliness
This commit includes the following:
Moves all packages that were within proto/ to proto/private
Rewrites imports to account for the packages being moved
Adds in buf.work.yaml to enable buf workspaces
Names the proto-public buf module so that we can override the Go package imports within proto/buf.yaml
Bumps the buf version dependency to 1.14.0 (I was trying out the version to see if it would get around an issue - it didn't but it also doesn't break things and it seemed best to keep up with the toolchain changes)
Why:
In the future we will need to consume other protobuf dependencies such as the Google HTTP annotations for openapi generation or grpc-gateway usage.
There were some recent changes to have our own ratelimiting annotations.
The two combined were not working when I was trying to use them together (attempting to rebase another branch)
Buf workspaces should be the solution to the problem
Buf workspaces means that each module will have generated Go code that embeds proto file names relative to the proto dir and not the top level repo root.
This resulted in proto file name conflicts in the Go global protobuf type registry.
The solution to that was to add in a private/ directory into the path within the proto/ directory.
That then required rewriting all the imports.
Is this safe?
AFAICT yes
The gRPC wire protocol doesn't seem to care about the proto file names (although the Go grpc code does tack on the proto file name as Metadata in the ServiceDesc)
Other than imports, there were no changes to any generated code as a result of this.
