lxc-build

#!/bin/bash

set -e

NEWPASSWORD=$(pwgen -s 22 1)

# this is where APT_PROXY should be configured
if [[ -f ~/.lxc-build.rc ]]; then
    . ~/.lxc-build.rc
fi

if [[ -z "$1" ]]; then
    echo "I need the lxc name!"
    exit 1
fi

NAME=$1

if [[ -z "$2" ]]; then 
    echo "Defaulting to trusty..."
    SERIES="trusty"
else
    SERIES="$2"
fi

echo "Creating container $NAME, series $SERIES"
sudo lxc-create -n $NAME -t download -- --dist ubuntu --release $SERIES --arch amd64

echo "Starting container $NAME ..."
sudo lxc-start -n $NAME -d
sudo lxc-wait -n $NAME -s RUNNING -t 5
echo "Started... pausing for networking to come up..."

ip=""
while [[ -z "$ip" ]]; do
    ip=$(sudo lxc-info -n $NAME -i | awk '{print $2}')
    sleep .1
done

if [[ -n "$APT_PROXY" ]]; then
    sudo lxc-attach -n $NAME -- sh -c "echo \"Acquire::http::Proxy \\\"${APT_PROXY}\\\";\" >> /etc/apt/apt.conf"
fi
sudo lxc-attach -n $NAME -- sh -c 'echo "force-unsafe-io" > /etc/dpkg/dpkg.cfg.d/force-unsafe-io'
sudo lxc-attach -n $NAME -- sh -c 'apt-get update && apt-get -y upgrade'
sudo lxc-attach -n $NAME -- sh -c 'apt-get install -y eatmydata'
sudo lxc-attach -n $NAME -- sh -c 'eatmydata apt-get -y install openssh-server software-properties-common'
sudo lxc-attach -n $NAME -- sh -c "echo \"ubuntu:${NEWPASSWORD}\" | chpasswd"
sudo lxc-attach -n $NAME -- sh -c 'mkdir /home/ubuntu/.ssh'
sudo lxc-attach -n $NAME -- sh -c "echo \"$(cat ~/.ssh/id_rsa.pub)\" >> /home/ubuntu/.ssh/authorized_keys"
sudo lxc-attach -n $NAME -- sh -c 'chown -R ubuntu.ubuntu /home/ubuntu/.ssh'
sudo lxc-attach -n $NAME -- sh -c 'echo "ubuntu ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/99-no-password-for-ubuntu'