Add .asf.yaml, .gitignore, NOTICE file
diff --git a/.asf.yaml b/.asf.yaml
new file mode 100644
index 0000000..5ef0821
--- /dev/null
+++ b/.asf.yaml
@@ -0,0 +1,29 @@
+# Licensed to 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. Apache Software Foundation (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.
+# 
+
+github:
+  description: Apache SkyWalking API in Golang.
+  homepage: https://skywalking.apache.org/
+  labels:
+    - go
+    - api
+    - skywalking
+  protected_branches:
+    main:
+      required_status_checks:
+        strict: true
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..773aa1e
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,21 @@
+# Licensed to 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. Apache Software Foundation (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.
+# 
+.idea/
+bin/
+.DS_Store
+coverage.txt
diff --git a/NOTICE b/NOTICE
new file mode 100644
index 0000000..e646f51
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1,5 @@
+Apache SkyWalking
+Copyright 2017-2020 The Apache Software Foundation
+
+This product includes software developed at
+The Apache Software Foundation (http://www.apache.org/).