tooling: include protoc-gen-jsonschema repository

[norbjd]

Commit Message

Include protoc-gen-jsonschema repository that will be used to generate JSON schemas from protobuf files.

Additional Description

Split from #27640 following @phlax demand.

This PR is a prerequisite to generate JSON schemas from protobuf files. First, we want to make sure everything's working after including that repository.

The protoc-gen-jsonschema repository used is still a fork I've made to bazelify the repo before including it here (chrusty/protoc-gen-jsonschema@master...norbjd:protoc-gen-jsonschema:add-bazel); if everything's good I plan to contribute to chrusty's upstream repository.

Risk Level

Low

Testing

I have added a dummy rule to confirm the setup works.

$ bazel build //tools/protojsonschema:envoy_annotations_jsonschema

$ cat bazel-bin/tools/protojsonschema/envoy_annotations_jsonschema
{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "$ref": "#/definitions/ResourceAnnotation",
    "definitions": {
        "ResourceAnnotation": {
            "properties": {
                "type": {
                    "type": "string"
                }
            },
            "additionalProperties": true,
            "type": "object"
        }
    }
}

Docs Changes

/

Release Notes

Include protoc-gen-jsonschema repository

Platform Specific Features

/

[repokitteh-read-only]

CC @envoyproxy/dependency-shepherds: Your approval is needed for changes made to (bazel/.*repos.*\.bzl)|(bazel/dependency_imports\.bzl)|(api/bazel/.*\.bzl)|(.*/requirements\.txt)|(.*\.patch).
envoyproxy/dependency-shepherds assignee is @htuch

🐱

Caused by: #27661 was synchronize by norbjd.

see: more, trace.

[phlax]

thanks for iterating @norbjd

if we can put these imports in the right places we should be good to land

[phlax]

if you remove the added BUILD file ci should pass now i think

[norbjd]

Should be good now, everything unnecessary has been removed 🧹

[phlax]

Great, thanks for separating this out and cleaning up, i think it will make it easier to look at the next steps

lgtm, thanks @norbjd