Hadoop on Digital Ocean

script.sh

#
# First install Java 7 from Oracle
#

apt-get update
apt-get install python-software-properties
add-apt-repository ppa:webupd8team/java
apt-get update
apt-get install oracle-java7-installer

#
# Add Hadoop user
#

addgroup hadoop
adduser --ingroup hadoop hduser


#
# Setup SSH
#

su - hduser
ssh-keygen -t rsa -P ""
cat $HOME/.ssh/id_rsa.pub >> $HOME/.ssh/authorized_keys


#
# Install Hadoop
#

cd /usr/local
sudo tar xzf hadoop-1.0.3.tar.gz
sudo mv hadoop-1.0.3 hadoop
sudo chown -R hduser:hadoop hadoop