When an agent receives a node, it responds with an ACK which is relayed
to the client. After the client receives the ACK, it's allowed to begin
pinging.
This adds the ability for `TunnelAuth` to also authorize incoming wireguard node IPs, preventing agents from reporting anything other than their static IP generated from the agent ID.
I noticed a possible race where tailnet.Conn can try to dial the embedded region before we've set our custom dialer that send the DERP in-memory. This closes that race and adds a test case for servertailnet with no STUN and an embedded relay
Fixes an issue where a MultiAgentConn isn't closed properly when the coordinator it is connected to is closed.
Since servertailnet checks whether the conn is closed before reinitializing, it is important that we check this, otherwise servertailnet can get stuck if the coordinator closes (e.g. when we switch from AGPL to PGCoordinator after decoding a license).
Fixes#8218
Removes `wsconncache` and related "is legacy?" functions and API calls that were used by it.
The only leftover is that Agents still use the legacy IP, so that back level clients or workspace proxies can dial them correctly.
We should eventually remove this: #11819
Adds support to `ServerTailnet` to set all peers lost before attempting to reconnect to the coordinator. In practice, this only really affects `wsproxy` since coderd has a local connection to the coordinator that only goes down if we're shutting down or change licenses.
This one is huge, and I'm sorry.
The problem is that once I change `tailnet.Conn` to start doing v2 behavior, I kind of have to change it everywhere, including in CoderSDK (CLI), the agent, wsproxy, and ServerTailnet.
There is still a bit more cleanup to do, and I need to add code so that when we lose connection to the Coordinator, we mark all peers as LOST, but that will be in a separate PR since this is big enough!
* 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
* feat: automatically use websockets if DERP upgrade is unavailable
This might be our biggest hangup for deployments at the moment...
Load balancers by default do not support the DERP protocol, so many
of our prospects and customers run into failing workspace connections.
This automatically swaps to use WebSockets, and reports the reason to
coderd.
In a future contribution, a warning will appear by the agent if it was
forced to use WebSockets instead of DERP.
* Fix nil pointer type in Tailscale dep
* Fix requested changes
* fix: Add coder user to docker group on installation
This makes for a simpler setup, and reduces the likelihood
a user runs into a strange issue.
* Add wgnet
* Add ping
* Add listening
* Finish refactor to make this work
* Add interface for swapping
* Fix conncache with interface
* chore: update gvisor
* fix tailscale types
* linting
* more linting
* Add coordinator
* Add coordinator tests
* Fix coordination
* It compiles!
* Move all connection negotiation in-memory
* Migrate coordinator to use net.conn
* Add closed func
* Fix close listener func
* Make reconnecting PTY work
* Fix reconnecting PTY
* Update CI to Go 1.19
* Add CLI flags for DERP mapping
* Fix Tailnet test
* Rename ConnCoordinator to TailnetCoordinator
* Remove print statement from workspace agent test
* Refactor wsconncache to use tailnet
* Remove STUN from unit tests
* Add migrate back to dump
* chore: Upgrade to Go 1.19
This is required as part of #3505.
* Fix reconnecting PTY tests
* fix: update wireguard-go to fix devtunnel
* fix migration numbers
* linting
* Return early for status if endpoints are empty
* Update cli/server.go
Co-authored-by: Colin Adler <colin1adler@gmail.com>
* Update cli/server.go
Co-authored-by: Colin Adler <colin1adler@gmail.com>
* Fix frontend entites
* Fix agent bicopy
* Fix race condition for the last node
* Fix down migration
* Fix connection RBAC
* Fix migration numbers
* Fix forwarding TCP to a local port
* Implement ping for tailnet
* Rename to ForceHTTP
* Add external derpmapping
* Expose DERP region names to the API
* Add global option to enable Tailscale networking for web
* Mark DERP flags hidden while testing
* Update DERP map on reconnect
* Add close func to workspace agents
* Fix race condition in upstream dependency
* Fix feature columns race condition
Co-authored-by: Colin Adler <colin1adler@gmail.com>
Colin Adler
Marcin Tojek
Spike Curtis
Steven Masley
Kyle Carberry