poi setup script

poi.sh

#!/bin/bash
#
# This script belongs to shouya/poi project
#  \bash <(wget -O - https://gist.githubusercontent.com/shouya/19c963b55d2ae0a516a8/raw/poi.sh)
#


set -e

EXTRA_APPS=(
    emacs
    mosh
)

if [ "$UID" != 0 ]; then
    echo Please run as root.
    exit
fi

sleep 1 && read -p "press [enter] to continue..."

echo Asking for config
[ -z "$username" ] && read -e -p "linux user: "     username
[ -z "$hostname" ] && read -e -p "host name: "      hostname
[ -z "$pubkey"   ] && read -e -p "ssh pubkey: "     pubkey
[ -z "$repo"     ] && read -e -p "git repository: " repo

userhome=/home/$username


echo Setting up hostname
echo "$hostname" > /etc/hostname
echo 127.0.0.1 "$hostname" >> /etc/hosts


echo Setting up user
useradd -m -U -s /bin/bash "$username"
usermod -a -G sudo "$username"
chage -d 0 "$username"

ssh_dir=$userhome/.ssh

userdo() {
    sudo -H -u "$username" "$@"
}

userdo mkdir -p $ssh_dir
userdo chmod 700 $ssh_dir
userdo ssh-keygen -f $ssh_dir/id_rsa -t rsa -N '' &>/dev/null
echo Please copy the public key printed below
echo "-------------------"
cat $ssh_dir/id_rsa.pub
echo "-------------------"
echo And add it to your github account, then press enter
read


echo Configuring login
echo "$pubkey" > $ssh_dir/authorized_keys
chmod 600 $ssh_dir/authorized_keys
chown $user:$user $ssh_dir/authorized_keys


echo Disabling ssh password login
usermod -p $(openssl passwd -crypt $(openssl rand -base64 6)) root
echo <<EOF >> /etc/ssh/sshd_config
ChallengeResponseAuthentication no
PasswordAuthentication no
UsePAM no
EOF
service ssh restart

echo Installing packages
apt-key adv --keyserver hkp://pgp.mit.edu:80 \
    --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
codename=$(sh -c 'eval `cat /etc/lsb-release` && echo $DISTRIB_CODENAME')
echo deb https://apt.dockerproject.org/repo ubuntu-$codename main \
    >> /etc/apt/sources.list.d/docker.list

apt-get update
apt-cache policy docker-engine
apt-get install -y curl git docker-engine

docker_compose_version=1.4.2
curl -L "https://github.com/docker/compose/"`
       `"releases/download/$docker_compose_version/"`
       `"docker-compose-`uname -s`-`uname -m`" \
    > /usr/local/bin/docker-compose
chmod +x /usr/local/bin/docker-compose
curl -L  "https://raw.githubusercontent.com/docker/"`
        `"compose/$(docker-compose --version | awk 'NR==1{print $NF}')"`
        `"/contrib/completion/bash/docker-compose" \
    > /etc/bash_completion.d/docker-compose

echo Pulling git repository
ssh-keyscan -H github.com | userdo tee -a $ssh_dir/known_hosts &>/dev/null
cd "$userhome"
userdo git clone "$repo" poi
cd poi

echo First build
service docker restart
docker-compose build .
docker-compose up `cat services`