network: add socket interface factory and config option (#11630)

Add bootstrap config option that allows startup injection of a custom
SocketInterface.

Risk Level: Low
Testing: n/a
Docs Changes: n/a
Release Notes: n/a

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

Mirrored from https://github.com/envoyproxy/envoy @ 13da8f415c372e7fde3b0105f58f57348e84acb5

BUILD

@@ -227,6 +227,7 @@ proto_library(
         "//envoy/extensions/internal_redirect/allow_listed_routes/v3:pkg",
         "//envoy/extensions/internal_redirect/previous_routes/v3:pkg",
         "//envoy/extensions/internal_redirect/safe_cross_scheme/v3:pkg",
+        "//envoy/extensions/network/socket_interface/v3:pkg",
         "//envoy/extensions/retry/host/omit_host_metadata/v3:pkg",
         "//envoy/extensions/retry/priority/previous_priorities/v3:pkg",
         "//envoy/extensions/transport_sockets/alts/v3:pkg",

envoy/config/bootstrap/v3/bootstrap.proto

@@ -39,7 +39,7 @@ option (udpa.annotations.file_status).package_version_status = ACTIVE;
 // <config_overview_bootstrap>` for more detail.
 
 // Bootstrap :ref:`configuration overview <config_overview_bootstrap>`.
-// [#next-free-field: 24]
+// [#next-free-field: 25]
 message Bootstrap {
   option (udpa.annotations.versioning).previous_message_type =
       "envoy.config.bootstrap.v2.Bootstrap";
@@ -222,6 +222,10 @@ message Bootstrap {
   // other resolution fails.
   // [#not-implemented-hide:]
   core.v3.ConfigSource default_config_source = 23;
+
+  // Optional overriding of default socket interface. The value must be the name of one of the
+  // socket interface factories initialized through a bootstrap extension
+  string default_socket_interface = 24;
 }
 
 // Administration interface :ref:`operations documentation

envoy/config/bootstrap/v4alpha/bootstrap.proto

@@ -37,7 +37,7 @@ option (udpa.annotations.file_status).package_version_status = NEXT_MAJOR_VERSIO
 // <config_overview_bootstrap>` for more detail.
 
 // Bootstrap :ref:`configuration overview <config_overview_bootstrap>`.
-// [#next-free-field: 24]
+// [#next-free-field: 25]
 message Bootstrap {
   option (udpa.annotations.versioning).previous_message_type =
       "envoy.config.bootstrap.v3.Bootstrap";
@@ -213,6 +213,10 @@ message Bootstrap {
   // other resolution fails.
   // [#not-implemented-hide:]
   core.v4alpha.ConfigSource default_config_source = 23;
+
+  // Optional overriding of default socket interface. The value must be the name of one of the
+  // socket interface factories initialized through a bootstrap extension
+  string default_socket_interface = 24;
 }
 
 // Administration interface :ref:`operations documentation

envoy/extensions/network/socket_interface/v3/BUILD

@@ -0,0 +1,9 @@
+# DO NOT EDIT. This file is generated by tools/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"],
+)

envoy/extensions/network/socket_interface/v3/default_socket_interface.proto

@@ -0,0 +1,17 @@
+syntax = "proto3";
+
+package envoy.extensions.network.socket_interface.v3;
+
+import "udpa/annotations/status.proto";
+
+option java_package = "io.envoyproxy.envoy.extensions.network.socket_interface.v3";
+option java_outer_classname = "DefaultSocketInterfaceProto";
+option java_multiple_files = true;
+option (udpa.annotations.file_status).package_version_status = ACTIVE;
+
+// [#protodoc-title: Default Socket Interface configuration]
+
+// Configuration for default socket interface that relies on OS dependent syscall to create
+// sockets.
+message DefaultSocketInterface {
+}

versioning/BUILD

@@ -110,6 +110,7 @@ proto_library(
         "//envoy/extensions/internal_redirect/allow_listed_routes/v3:pkg",
         "//envoy/extensions/internal_redirect/previous_routes/v3:pkg",
         "//envoy/extensions/internal_redirect/safe_cross_scheme/v3:pkg",
+        "//envoy/extensions/network/socket_interface/v3:pkg",
         "//envoy/extensions/retry/host/omit_host_metadata/v3:pkg",
         "//envoy/extensions/retry/priority/previous_priorities/v3:pkg",
         "//envoy/extensions/transport_sockets/alts/v3:pkg",