• git clone https://github.com/stealthly/bootstrap
• git checkout jdk6
• vagrant up
• vagrant ssh
• mkdir apache
• cd apache
• git clone http://git-wip-us.apache.org/repos/asf/kafka.git kafka
• cd kafka
• git checkout 0.8.12
• git log

Now make sure the log commit is the same of the tag you are sending out and that you checked out

• cd
• mkdir kafka-0.8.12-src
• cd kafka-0.8.12-src
• cp -r ~/apache/kafka/* .
• git status

fatal: Not a git repository (or any of the parent directories): .git

• if you did not get this you messed up somewhere please go back.

Now prepare the source (after getting your keys local to the box)

• cd ..
• tar -zcvf kafka-0.8.12-src.tgz kafka-0.8.12-src/
• /vagrant/scripts/sign.sh kafka-0.8.12-src.tgz
• upload the artifacts to where you are staging them
• check they are there
• exit
• vagrant destroy

Setup another clean room

• vagrant up
• vagrant ssh
• download the files you signed and uploaded
• gpg kafka-0.8.1-src.tgz.asc 
• /vagrant/scripts/verify.sh kafka-0.8.1-src.tgz

You should see valid signatures and no errors, if errors go back

• Gradle must be installed http://www.gradle.org/installation
• tar -xvf kafka-0.8.12-src.tgz
• cd kafka-0.8.12-src
• gradle
• ./gradlew clean
• cp your private gradle.properties to ~/.gradle