feat: Add Tailscale networking (#3505)

* 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>

.vscode/settings.json

@@ -13,6 +13,9 @@
     "codersdk",
     "cronstrue",
     "databasefake",
+    "DERP",
+    "derphttp",
+    "derpmap",
     "devel",
     "drpc",
     "drpcconn",
@@ -25,6 +28,7 @@
     "goarch",
     "gographviz",
     "goleak",
+    "gonet",
     "gossh",
     "gsyslog",
     "hashicorp",
@@ -34,20 +38,30 @@
     "idtoken",
     "Iflag",
     "incpatch",
+    "ipnstate",
     "isatty",
     "Jobf",
     "Keygen",
     "kirsle",
     "Kubernetes",
     "ldflags",
+    "magicsock",
     "manifoldco",
     "mapstructure",
     "mattn",
     "mitchellh",
     "moby",
     "namesgenerator",
+    "namespacing",
+    "netaddr",
+    "netip",
+    "netmap",
+    "netns",
+    "netstack",
+    "nettype",
     "nfpms",
     "nhooyr",
+    "nmcfg",
     "nolint",
     "nosec",
     "ntqry",
@@ -63,14 +77,23 @@
     "provisionersdk",
     "ptty",
     "ptytest",
+    "reconfig",
     "retrier",
     "rpty",
     "sdkproto",
     "sdktrace",
     "Signup",
+    "slogtest",
     "sourcemapped",
     "Srcs",
     "stretchr",
+    "stuntest",
+    "tailbroker",
+    "tailcfg",
+    "tailexchange",
+    "tailnet",
+    "tailnettest",
+    "Tailscale",
     "TCGETS",
     "tcpip",
     "TCSETS",
@@ -84,19 +107,30 @@
     "tfstate",
     "tparallel",
     "trimprefix",
+    "tsdial",
+    "tslogger",
+    "tstun",
     "turnconn",
     "typegen",
     "unconvert",
     "Untar",
+    "Userspace",
     "VMID",
     "weblinks",
     "webrtc",
+    "wgcfg",
+    "wgconfig",
+    "wgengine",
+    "wgmonitor",
+    "wgnet",
     "workspaceagent",
+    "workspaceagents",
     "workspaceapp",
     "workspaceapps",
     "workspacebuilds",
     "workspacename",
     "wsconncache",
+    "wsjson",
     "xerrors",
     "xstate",
     "yamux"