We're seeing some flaky tests related to agent connectivity - https://github.com/coder/coder/actions/runs/7286675441/job/19856270998
I'm pretty sure what happened in this one is that the client opened a connection while the wgengine was in the process of reconfiguring the wireguard device, so the fact that the peer became "active" as a result of traffic being sent was not noticed.
The test calls `AwaitReachable()` but this only tests the disco layer, so it doesn't wait for wireguard to come up.
I think we should be using TSMP for pinging and reachability, since this operates at the IP layer, and therefore requires that wireguard comes up before being successful.
This should also help with the problems we have seen where a TCP connection starts before wireguard is up and the initial round trip has to wait for the 5 second wireguard handshake retry.
fixes: #11294
Refactors our DRPC service definitions slightly.
In the previous version, I inserted the RPCs from the tailnet proto directly into the Agent service. This makes things hard to deal with because DRPC then generates a new set of methods with new interfaces with the `DRPCAgent_` prefixed. Since you can't have a single method that takes different argument types, we couldn't reuse the implementation of those RFCs without a lot of extra classes and pass-thru methods.
Instead, the "right" way to do it is to integrate at the DRPC layer. So, we have two DRPC services available over the Agent websocket, and register them both on the DRPC `mux`.
Since the tailnet proto RPC service is now for both clients and agents, I renamed some things to clarify and shorten.
This PR also removes the `TailnetAPI` implementation from the `agentapi` package, and the next PR in the stack replaces it with the implementation from the `tailnet` package.
Part of #10532
Adds a tailnet ClientService that accepts a net.Conn and serves v1 or v2 of the tailnet API.
Also adds a DRPCService that implements the DRPC interface for the v2 API. This component is within the ClientService, but needs to be reusable and exported so that we can also embed it in the Agent API.
Finally, includes a NewDRPCClient function that takes a net.Conn and runs dRPC in yamux over it on the client side.
* chore(Makefile): use golangci-lint version from dogfood Dockerfile
* chore(dogfood/Dockerfile): update golangci-lint to latest version
* chore(coderd): address linter complaints
re: #10528
Refactors PG Coordinator to work with the Tailnet v2 API, including wrappers for the existing v1 API.
The debug endpoint functions, but doesn't return sensible data, that will be in another stacked PR.
Fixes an issue where remote forwards are not correctly torn down when using OpenSSH with `coder ssh --stdio`. OpenSSH sends a disconnect signal, but then also sends SIGHUP to `coder`. Previously, we just exited when we got SIGHUP, and this raced against properly disconnecting.
Fixes https://github.com/coder/customers/issues/327
I've said it before, I'll say it again: you can't create a timed context before calling `t.Parallel()` and then use it after.
Fixes flakes like https://github.com/coder/coder/actions/runs/6716682414/job/18253279157
I've chosen just to drop `t.Parallel()` entirely rather than create a second context after the parallel call, since the vast majority of the test time happens before where the parallel call was. It does all the tailnet setup before `t.Parallel()`.
Leaving a call to `t.Parallel()` is a bug risk for future maintainers to come in and use the wrong context in the latter part of the test by accident.
* chore: add /v2 to import module path
go mod requires semantic versioning with versions greater than 1.x
This was a mechanical update by running:
```
go install github.com/marwan-at-work/mod/cmd/mod@latest
mod upgrade
```
Migrate generated files to import /v2
* Fix gen
* work around websocket deadline bug
Signed-off-by: Spike Curtis <spike@coder.com>
* Use test context to hold websocket open
Signed-off-by: Spike Curtis <spike@coder.com>
* Fix race creating test websocket
Signed-off-by: Spike Curtis <spike@coder.com>
* set write deadline to time.Time zero
Signed-off-by: Spike Curtis <spike@coder.com>
---------
Signed-off-by: Spike Curtis <spike@coder.com>
Cian Johnston