理解Apache发布的内容和流程
总的来说，Source Release是Apache关注的重点，也是发布的必须内容；而Binary Release是可选项，Dubbo可以选择是否发布二进制包到Apache仓库或者发布到Maven中央仓库。
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请参考以下链接，找到更多关于ASF的发布指南:
Apache Release Guide
Apache Release Policy
Maven Release Info
本地构建环境准备
主要包括签名工具、Maven仓库认证相关准备
安装GPG，参见
https://www.gnupg.org/download/index.html
用gpg生成key
$ gpg2 --full-gen-keygpg (GnuPG) 2.0.12; Copyright (C) 2009 Free Software Foundation, Inc.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Please select what kind of key you want:
(1) RSA and RSA (default)
(2) DSA and Elgamal
(3) DSA (sign only)
(4) RSA (sign only)
Your selection? 1RSA keys may be between 1024 and 4096 bits long.
What keysize do you want? (2048) 4096Requested keysize is 4096 bits
Please specify how long the key should be valid. 0 = key does not expire
= key expires in n days
w = key expires in n weeks
m = key expires in n months
y = key expires in n yearsKey is valid for? (0)
Key does not expire at allIs this correct? (y/N) y
GnuPG needs to construct a user ID to identify your key.Real name: Robert Burrell Donkin
Email address: rdonkin@apache.orgComment: CODE SIGNING KEYYou selected this USER-ID: "Robert Burrell Donkin (CODE SIGNING KEY) "Change (N)ame, (C)omment, (E)mail or (O)kay/(Q)uit? O
You need a Passphrase to protect your secret key. # 填入密码，以后打包过程中会经常用到
查看key id
$ gpg --list-keys
pub rsa4096/28681CB1 2018-04-26 # 28681CB1就是key iduid [ultimate] liujun (apache-dubbo)
sub rsa4096/D3D6984B 2018-04-26# 通过key id发送public key到keyserver$ gpg --keyserver pgpkeys.mit.edu --send-key 28681CB1# 其中，pgpkeys.mit.edu为随意挑选的keyserver，keyserver列表为：https://sks-keyservers.net/status/，因为相互之间是自动同步的，选任意一个都可以。
如果有多个public key，设置默认key
~/.gnupg/gpg.conf
# If you have more than 1 secret key in your keyring, you may want to# uncomment the following option and set your preferred keyid.default-key 28681CB1
设置Apache中央仓库
...
apache.snapshots.https
apache.releases.https
...
gpg.passphrase
打包&上传
从主干分支拉取新分支作为发布分支，如现在要发布2.6.4版本，则从2.6.x拉出新分支2.6.4-release，此后2.6.4 Release Candidates涉及的修改及打标签等都在2.6.4-release分支进行，最终发布完成后合入主干分支。
首先，在2.6.4-release分支验证maven组件打包、source源码打包、签名等是否都正常工作
$ mvn clean install -Papache-release
$ mvn deploy# 将snapshot包推送到maven中央仓库，处于staging状态
用maven-release-plugin发布
$ mvn release:clean
$ mvn release:prepare -Papache-release -Darguments="-DskipTests" -DautoVersionSubmodules=true -Dusername=YOUR GITHUB ID# 执行完成后：1.生成source.zip包； 2.打出tag，并推送到github仓库； 3.分支版本自动升级为2.6.4-SNAPSHOT，并将修改推送到github仓库
准备Apache发布
准备svn本机环境（Apache使用svn托管项目的发布内容）
将dubbo checkout到本地目录
$ svn checkout https://dist.apache.org/repos/dist/dev/incubator/dubbo# 假定本地目录为 ~/apache/incubator/dubbo
当前发布版本为2.6.4，新建目录
$ cd ~/apache/incubator/dubbo # dubbo svn根目录$ mkdir 2.6.4
添加public key到
KEYS
文件。KEYS主要是让参与投票的人在本地导入，用来校验sign的正确性
拷贝Dubbo根目录下的source.zip包到svn本地仓库dubbo/2.6.4
生成sha512签名
$ shasum -a 512 dubbo-incubating-2.6.4-source-release.zip >> dubbo-incubating-2.6.4-source-release.zip.sha512
如果有binary release要同时发布
# 到dubbo项目distribution的module下，执行：$ mvn install# target目录下，拷贝bin-release.zip以及bin-release.zip.asc到svn本地仓库dubbo/2.6.4# 参考第6步，生成sha512签名
提交到Apache svn
$ svn status
$ svn commit -m 'prepare for 2.6.4 RC1'
验证Release Candidates
证环节包含但不限于以下内容和形式：
Check signatures and hashes are good
sha512 dubbo-incubating-${release_version}-bin-release.zip.sha512
sha512 dubbo-incubating-${release_version}-source-release.zip.sha512
unzip dubbo-incubating-${release_version}-source-release.zip to the default directory and check the following:
Directory with
incubator
in name
dubbo-incubating-${release_version}-bin-release
DISCLAIMER file exists
LICENSE and NOTICE file exists and contents are good
All files and no binary files exist
All files has standard ASF License header
Can compile from source
All unit tests can pass
mvn clean test # This will run all unit tests# you can also open rat and style plugin to check if every file meets requirements.mvn clean install -Drat.skip=false -Dcheckstyle.skip=false
Release candidates match with corresponding tags, you can find tag link and hash in vote email.
进入投票
投票分两个阶段：
Dubbo社区投票，发起投票邮件到dev@dubbo.apache.org。在社区开发者Review，并统计到3个同意发版的binding票后，即可进入下一阶段的投票。
Apache社区投票，发起投票邮件到general@apache.org。在Apache PMC Review，并统计到3个统一发版的binding票后，即可进行正式发布。
邮件模板：
Hello Dubbo Community,
This is a call for vote to release Apache Dubbo (Incubating) version 2.6.4.
The release candidates:
https://dist.apache.org/repos/dist/dev/incubator/dubbo/2.6.4/
Git tag for the release:
https://github.com/apache/incubator-dubbo/tree/dubbo-2.6.4Hash for the release tag:
afab04c53edab38d52275d2a198ea1aff7a4f41eRelease Notes:
https://github.com/apache/incubator-dubbo/releases/tag/untagged-4775c0a22c60fca55118
The artifacts have been signed with Key : 28681CB1, which can be found in the keys file:
https://dist.apache.org/repos/dist/dev/incubator/dubbo/KEYSThe vote will be open for at least 72 hours or until necessary number of votes are reached.
Please vote accordingly:
[ ] +1 approve
[ ] +0 no opinion
[ ] -1 disapprove with the reason
Thanks,
The Apache Dubbo (Incubating) Team
正式发布
提交
https://dist.apache.org/repos/dist/dev/incubator/dubbo
目录下的发布包到
https://dist.apache.org/repos/dist/release/incubator/dubbo/
，完成正式发布。
发邮件到dev@dubbo.apache.org和general@apache.org，通知社区发布完成。
分享名称：如何完成一次Apache的版本发布
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http://cdxtjz.cn/article/iiopoc.html
