contrib: add vcl socket interface extension (#18149)

Signed-off-by: Florin Coras <fcoras@cisco.com>

Mirrored from https://github.com/envoyproxy/envoy @ 41c62224bb476c2ee03a4e8d4d5855cc66db8b0f

BUILD

@@ -67,6 +67,7 @@ proto_library(
         "//contrib/envoy/extensions/filters/network/sip_proxy/router/v3alpha:pkg",
         "//contrib/envoy/extensions/filters/network/sip_proxy/v3alpha:pkg",
         "//contrib/envoy/extensions/private_key_providers/cryptomb/v3alpha:pkg",
+        "//contrib/envoy/extensions/vcl/v3alpha:pkg",
         "//envoy/admin/v3:pkg",
         "//envoy/config/accesslog/v3:pkg",
         "//envoy/config/bootstrap/v3:pkg",

contrib/envoy/extensions/vcl/v3alpha/BUILD

@@ -0,0 +1,9 @@
+# DO NOT EDIT. This file is generated by tools/proto_format/proto_sync.py.
+
+load("@envoy_api//bazel:api_build_system.bzl", "api_proto_package")
+
+licenses(["notice"])  # Apache 2
+
+api_proto_package(
+    deps = ["@com_github_cncf_udpa//udpa/annotations:pkg"],
+)

contrib/envoy/extensions/vcl/v3alpha/vcl_socket_interface.proto

@@ -0,0 +1,19 @@
+syntax = "proto3";
+
+package envoy.extensions.vcl.v3alpha;
+
+import "udpa/annotations/status.proto";
+
+option java_package = "io.envoyproxy.envoy.extensions.vcl.v3alpha";
+option java_outer_classname = "VclSocketInterfaceProto";
+option java_multiple_files = true;
+option (udpa.annotations.file_status).work_in_progress = true;
+option (udpa.annotations.file_status).package_version_status = ACTIVE;
+
+// [#protodoc-title: Vcl Socket Interface configuration]
+// VCL :ref:`configuration overview <config_sock_interface_vcl>`.
+// [#extension: envoy.bootstrap.vcl]
+
+// Configuration for vcl socket interface that relies on `vpp` `comms` library (VCL)
+message VclSocketInterface {
+}

versioning/BUILD

@@ -19,6 +19,7 @@ proto_library(
         "//contrib/envoy/extensions/filters/network/sip_proxy/router/v3alpha:pkg",
         "//contrib/envoy/extensions/filters/network/sip_proxy/v3alpha:pkg",
         "//contrib/envoy/extensions/private_key_providers/cryptomb/v3alpha:pkg",
+        "//contrib/envoy/extensions/vcl/v3alpha:pkg",
         "//envoy/admin/v3:pkg",
         "//envoy/config/accesslog/v3:pkg",
         "//envoy/config/bootstrap/v3:pkg",