Move .asf.yaml from main

Centralize all repository-wide configuration files and store
them in the *default* branch, that is, `2.x`.

Author: vy

.asf.yaml

@@ -0,0 +1,60 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to you under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# `.asf.yaml` is a branch-specific YAML configuration file for Git repositories to control features such as notifications, GitHub settings, etc.
+# See its documentation for details: https://cwiki.apache.org/confluence/display/INFRA/Git+-+.asf.yaml+features
+
+# Bare minimum `notifications` to
+#
+# 1. Forward GitHub _activity_ to `notifications@`
+# 2. Forward commits to `commits@`
+# 3. Forward `dependabot` PRs to `robots@`
+#
+# Note that `notifications` are merged with the defaults accessible from: https://gitbox.apache.org/schemes.cgi?logging-log4j2
+notifications:
+  commits: [email protected]
+  issues: [email protected]
+  pullrequests: [email protected]
+  pullrequests_bot_dependabot: [email protected]
+  jira_options: link label worklog
+
+github:
+  description: "Apache Log4j is a versatile, feature-rich, efficient logging API and backend for Java."
+  homepage: https://logging.apache.org/log4j/2.x
+  features:
+    issues: true
+  del_branch_on_merge: true
+  autolink_jira:
+    - LOG4J2
+  labels:
+    - apache
+    - api
+    - java
+    - jvm
+    - library
+    - log4j
+    - log4j2
+    - logging
+    - logger
+    - api
+    - syslog
+
+  protected_branches:
+    main:
+      required_signatures: true
+    2.x:
+      required_signatures: true