consul

Commit Graph

Author	SHA1	Message	Date
Matt Keeler	085c0addc0	Protobuf Refactoring for Multi-Module Cleanliness (#16302 ) 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.	2 years ago
Dan Upton	ee2d47da83	Fix missing comment in generated enterprise rate-limit file (#15895 ) Fixes bug in #15564 where gofmt would strip out the generated code warning comment because it was on the same line as the build tag.	2 years ago
Dan Upton	d4c435856b	grpc: `protoc` plugin for generating gRPC rate limit specifications (#15564 ) Adds automation for generating the map of `gRPC Method Name → Rate Limit Type` used by the middleware introduced in #15550, and will ensure we don't forget to add new endpoints. Engineers must annotate their RPCs in the proto file like so: ``` rpc Foo(FooRequest) returns (FooResponse) { option (consul.internal.ratelimit.spec) = { operation_type: READ, }; } ``` When they run `make proto` a protoc plugin `protoc-gen-consul-rate-limit` will be installed that writes rate-limit specs as a JSON array to a file called `.ratelimit.tmp` (one per protobuf package/directory). After running Buf, `make proto` will execute a post-process script that will ingest all of the `.ratelimit.tmp` files and generate a Go file containing the mappings in the `agent/grpc-middleware` package. In the enterprise repository, it will write an additional file with the enterprise-only endpoints. If an engineer forgets to add the annotation to a new RPC, the plugin will return an error like so: ``` RPC Foo is missing rate-limit specification, fix it with: import "proto-public/annotations/ratelimit/ratelimit.proto"; service Bar { rpc Foo(...) returns (...) { option (hashicorp.consul.internal.ratelimit.spec) = { operation_type: OPERATION_READ \| OPERATION_WRITE \| OPERATION_EXEMPT, }; } } ``` In the future, this annotation can be extended to support rate-limit category (e.g. KV vs Catalog) and to determine the retry policy.	2 years ago

Author

SHA1

Message

Date

Matt Keeler

085c0addc0

Protobuf Refactoring for Multi-Module Cleanliness (#16302 )

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.

Dan Upton

ee2d47da83

Fix missing comment in generated enterprise rate-limit file (#15895 )

Fixes bug in #15564 where gofmt would strip out the generated code
warning comment because it was on the same line as the build tag.

Dan Upton

d4c435856b

grpc: `protoc` plugin for generating gRPC rate limit specifications (#15564 )

Adds automation for generating the map of `gRPC Method Name → Rate Limit Type`
used by the middleware introduced in #15550, and will ensure we don't forget
to add new endpoints.

Engineers must annotate their RPCs in the proto file like so:

```
rpc Foo(FooRequest) returns (FooResponse) {
  option (consul.internal.ratelimit.spec) = {
    operation_type: READ,
  };
}
```

When they run `make proto` a protoc plugin `protoc-gen-consul-rate-limit` will
be installed that writes rate-limit specs as a JSON array to a file called
`.ratelimit.tmp` (one per protobuf package/directory).

After running Buf, `make proto` will execute a post-process script that will
ingest all of the `.ratelimit.tmp` files and generate a Go file containing the
mappings in the `agent/grpc-middleware` package. In the enterprise repository,
it will write an additional file with the enterprise-only endpoints.

If an engineer forgets to add the annotation to a new RPC, the plugin will
return an error like so:

```
RPC Foo is missing rate-limit specification, fix it with:

	import "proto-public/annotations/ratelimit/ratelimit.proto";

	service Bar {
	  rpc Foo(...) returns (...) {
	    option (hashicorp.consul.internal.ratelimit.spec) = {
	      operation_type: OPERATION_READ | OPERATION_WRITE | OPERATION_EXEMPT,
	    };
	  }
	}
```

In the future, this annotation can be extended to support rate-limit
category (e.g. KV vs Catalog) and to determine the retry policy.

3 Commits (e2c4a787a54f1f0ae2465853c7281e25d0a8acc5)