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#!/bin/sh
#
# installer.customize - configure installer image
#
# Copyright 2016 Lars Wirzenius
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
set -eu
# Avoid any problems (mainly weird perl warnings) from inherited
# locale from user.
export LC_ALL=C
rootdir="$1"
# Create an account for ansible.
chroot "$rootdir" adduser --gecos 'Installer' --disabled-password installer
# Install an authorize_keys file so that ansible can access the account.
chroot "$rootdir" install -d -o ansible -g ansible -m 0700 /home/ansible/.ssh
install -m 0600 authorized_keys "$rootdir/home/ansible/.ssh/authorized_keys"
chroot "$rootdir" chown ansible:ansible /home/ansible/.ssh/authorized_keys
# Add ansible to sudoers, without password.
cat <<EOF >> "$rootdir/etc/sudoers.d/installer"
installer ALL=(ALL:ALL) NOPASSWD: ALL
EOF
chroot "$rootdir" chown root:root /etc/sudoers.d/installer
chroot "$rootdir" chmod 0440 /etc/sudoers.d/installer
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