Script meant to be used as vagrant shell provisioner. It doesn't use /vagrant shared folder though. That means it can be launched from any remote debian machine.

install-build-agent.sh

#!/bin/bash

# Replace this with actual server address
serverUrl="10.1.136.242:80"

if [ -e "/etc/init.d/teamcity" ]
then
    echo "TeamCity allready installed"
    exit 0
fi

# # Install prerequisties
sudo apt-get update
sudo apt-get install -y wget unzip openjdk-7-jre-headless dos2unix

# Download agent
cd ~/
wget http://10.1.136.242:80/update/buildAgent.zip
mkdir ~/TeamCity
unzip buildAgent.zip -d ~/TeamCity

# Configure for using serverUrl
sed "s|localhost:8111|${serverUrl}|g" ~/TeamCity/conf/buildAgent.dist.properties | dos2unix > ~/TeamCity/conf/buildAgent.properties

# Copy build agent to /var/
sudo cp -r ~/TeamCity /var/

# Add executable permission
sudo chmod +x /var/TeamCity/bin/agent.sh

# Start build-agent at boot
echo "#!/bin/bash" > ~/teamcity
echo "/var/TeamCity/bin/agent.sh start" >> ~/teamcity
sudo cp ~/teamcity /etc/init.d/teamcity
sudo chmod +x /etc/init.d/teamcity
sudo update-rc.d teamcity defaults

# Launch build agent
sudo /var/TeamCity/bin/agent.sh start