Add new bash script to build base ubuntu box

boxes/build-ubuntu-box.sh

@@ -0,0 +1,86 @@
+#!/bin/bash
+
+# Script used to build Ubuntu base vagrant-lxc containers
+# USAGE:
+#   $ sudo ./build-ubuntu-box.sh UBUNTU_RELEASE BOX_ARCH
+
+# TODO: * Add support for flushing cache and specifying a custom base Ubuntu lxc
+#         template instead of system's built in
+#       * Embed vagrant public key
+
+##################################################################################
+# 1 - Create the base container
+
+RELEASE=${1:-"raring"}
+ARCH=${2:-"amd64"}
+
+lxc-create -n ${RELEASE}-base -t ubuntu -- --release ${RELEASE} --arch ${ARCH}
+
+
+##################################################################################
+# 2 - Prepare vagrant user
+
+ROOTFS=/var/lib/lxc/${RELEASE}-base/rootfs
+chroot ${ROOTFS} usermod -l vagrant -d /home/vagrant ubuntu
+
+echo -n 'vagrant:vagrant' | chroot ${ROOTFS} chpasswd
+
+
+##################################################################################
+# 3 - Setup SSH access and passwordless sudo
+
+# Configure SSH access
+mkdir -p ${ROOTFS}/home/vagrant/.ssh
+wget https://raw.github.com/mitchellh/vagrant/master/keys/vagrant.pub -O ${ROOTFS}/home/vagrant/.ssh/authorized_keys
+chroot ${ROOTFS} chown -R vagrant: /home/vagrant/.ssh
+
+# Enable passwordless sudo for users under the "sudo" group
+cp ${ROOTFS}/etc/sudoers{,.orig}
+sed -i -e \
+      's/%sudo\s\+ALL=(ALL\(:ALL\)\?)\s\+ALL/%sudo ALL=NOPASSWD:ALL/g' \
+      ${ROOTFS}/etc/sudoers
+
+
+##################################################################################
+# 4 - Add some goodies
+
+PACKAGES=(vim curl wget manpages bash-completion)
+chroot ${ROOTFS} apt-get install ${PACKAGES[*]} -y --force-yes
+
+
+##################################################################################
+# 5 - Configuration management tools
+
+
+# TODO
+
+
+##################################################################################
+# 6 - Free up some disk space
+
+rm -rf ${ROOTFS}/tmp/*
+chroot ${ROOTFS} apt-get clean
+
+
+##################################################################################
+# 7 - Build box package
+
+# Set up a working dir
+mkdir -p /tmp/vagrant-lxc-${RELEASE}
+
+# Compress container's rootfs
+cd /var/lib/lxc/${RELEASE}-base
+tar --numeric-owner -czf /tmp/vagrant-lxc-${RELEASE}/rootfs.tar.gz ./rootfs/*
+
+# Prepare package contents
+cd /tmp/vagrant-lxc-${RELEASE}
+wget https://raw.github.com/fgrehm/vagrant-lxc/master/boxes/common/lxc-template
+wget https://raw.github.com/fgrehm/vagrant-lxc/master/boxes/common/lxc.conf
+wget https://raw.github.com/fgrehm/vagrant-lxc/master/boxes/common/metadata.json
+chmod +x lxc-template
+
+# Vagrant box!
+PKG=vagrant-lxc-${RELEASE}-${ARCH}.box
+tar -czf $PKG ./*
+
+echo "The base box was built successfully to ${PKG}"