Migrate Buf configuration files from v1 to v2

buf.gen-golang.yaml

@@ -1,8 +1,9 @@
 # buf.gen.yaml sets up the generation configuration for all of our plugins.
 # Note: buf does not allow multi roots that are within each other; as a result, the common-protos folders are
 # symlinked into the top level directory.
-version: v1
+version: v2
 plugins:
-- name: go
-  out: .
-  opt: paths=source_relative
+  - local: protoc-gen-go
+    out: .
+    opt:
+      - paths=source_relative

buf.gen-noncrd.yaml

@@ -1,14 +1,22 @@
-version: v1
+version: v2
 plugins:
-- name: go
-  out: .
-  opt: paths=source_relative
-- name: go-grpc
-  out: .
-  opt: paths=source_relative
-- name: docs
-  out: .
-  opt: warnings=false,dictionary=./dictionaries/en-US,custom_word_list=./dictionaries/custom.txt,per_file=true,mode=html_fragment_with_front_matter
-- name: golang-jsonshim
-  out: .
-  opt: paths=source_relative
+  - local: protoc-gen-go
+    out: .
+    opt:
+      - paths=source_relative
+  - local: protoc-gen-go-grpc
+    out: .
+    opt:
+      - paths=source_relative
+  - local: protoc-gen-docs
+    out: .
+    opt:
+      - warnings=false 
+      - dictionary=./dictionaries/en-US 
+      - custom_word_list=./dictionaries/custom.txt 
+      - per_file=true 
+      - mode=html_fragment_with_front_matter
+  - local: protoc-gen-golang-jsonshim
+    out: .
+    opt:
+      - paths=source_relative

buf.yaml

@@ -1,14 +1,14 @@
-version: v1
-build:
-  excludes:
-    - common-protos
+version: v2
+modules:
+  - path: .
+    excludes:
+      - common-protos
 breaking:
   use:
-  - WIRE_JSON
+    - WIRE_JSON
 lint:
   use:
     - BASIC
   except:
     - FIELD_LOWER_SNAKE_CASE
     - PACKAGE_DIRECTORY_MATCH
-  allow_comment_ignores: true

releasenotes/notes/3612.yml

@@ -0,0 +1,9 @@
+apiVersion: release-notes/v2
+kind: bug-fix
+area: documentation
+issue:
+  - https://github.com/istio/istio/issues/3612
+
+releaseNotes:
+  - |
+    **Upgraded** Buf configuration files from v1 to v2.