Skywalking: commercial purposes

[gaoweijie]

Can we do secondary development based on skywalking and use it for commercial purposes?
remarks：Apach version. Skywalking origin code comes from this github project.

[wu-sheng]

Based on the Apache 2.0 License, it is very commercial friendly. You should

1. In your source codes, keep all Apache 2.0 headers. Typically, we suggest you keep all the package names still in org.apache.skywalking.
2. Make a clear statement on your website and product page, your product/service includes(or bases on) Apache SkyWalking
3. Keep Apache SkyWalking in your LICENSE(the one you provide for your customer) file.

At the product and marketing side, as long as you are clear about the above, there is no other limitation about how you change, what you change, and how you sell or provide service.

---

Note

remarks：Apach version. Skywalking origin code comes from this github project.

You don't need to mention GitHub, you need to mention

The product/service includes/bases on Apache SkyWalking(http://skywalking.apache.org/). The Apache Software Foundation, Apache SkyWalking, SkyWalking, Apache, the Apache feather logo, and the Apache SkyWalking project logo are either registered trademarks or trademarks of the Apache Software Foundation.

Hope this is helpful.

[wu-sheng]

For header I mean this

/*
 * 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.
 *
 */

About the LICENSE you should include these 2, and please keep the file names and content w/o change.

• https://github.com/apache/skywalking/blob/master/dist-material/release-docs/LICENSE
• https://github.com/apache/skywalking/blob/master/dist-material/release-docs/NOTICE

[gaoweijie]

Thanks.