Add definitions for Device Trust RPCs.
DeviceTrustService is fairly isolated from other services, so it is generated
using plain `protoc-gen-go` instead of Gogo.
teleport.e#514
* Add Device Trust proto definitions
* Allow proto generation without gogo
* Drop Gogo from lib/multiplexer protos
* Update generated protos
* Tidy modules
Change the proto layout of `api/` to a more standard setup, allowing the use of
modern tools (like Buf) to format/lint (and maybe, one day, generate sources).
The new layout looks like this:
``` api/ proto/ <- root of protos and proto imports teleport/ <- base
package for Teleport protos (akin to "google/" or "gogoproto/") legacy/ <- root
of "legacy" protos (most linters disabled) client/ proto/ types/ events/
webauthn/ wrappers/ ```
Non-legacy `api/` protos are expected to follow this layout:
``` api/ proto/ teleport/ mynewpackage/ <- package name v1/ <- protos
explicitly versioned gen/ proto/ <- root for generated sources
(multi-language possible, separate from hand-written code) go/ mynewpackage/ v1
<- generate Go sources go here. ```
Some outstanding issues, like lack of `go_package` declarations and non-standard
import paths (`import "github.com/gravitational/teleport/.../some.proto"`) are
fixed.
Legacy protos still have irregular package declarations. It's possible to fix
that, but it's a bit harder to reason about, as generated sources change in
possibly-meaningful ways.
Future iterations could change legacy packages to match the directory structure
and apply a similar change to protos within lib/ packages, but this seems
sufficient for a first step.
* Add Buf to buildbox
* Unify API protos under Buf
* Fix proto generation
* Reformat protos
* Update generated protos
* Generate protos using Buf
* Appease linter
* Review: make sure gogo protobuf versions are in sync
* Clean leftovers from previous attempts
* Fix operator/Makefile
* Rename internal make gRPC targets to `*/host`
* Sort `make fix-license` targets (nit)
