drive-ops/global/pre-tasks.d/040hiera-eyaml

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#!/bin/sh
#
# Set up eyaml for Hiera
#
set -e
EYAMLDIR=/etc/hiera/eyaml
vendor=$(lsb_release -is)
version=$(lsb_release -rs)
# eyaml is only used on Ubuntu 20.04 and newer, and Debian 11 and newer (earlier OSes use hiera-gpg instead)
test "${vendor}" = "Ubuntu" && dpkg --compare-versions "${version}" "lt" "18.04" && exit 0
test "${vendor}" = "Debian" && dpkg --compare-versions "${version}" "lt" "10" && exit 0
stamp="$COSMOS_BASE/stamps/hiera-eyaml-v01.stamp"
test -f "$stamp" && exit 0
if [ ! -f /usr/bin/eyaml ] || [ ! -d /usr/share/doc/yaml-mode ]; then
apt-get update
# If we don't install emacs before yaml-mode the default emacs package
# will be emacs-gtk which brings x11 with friends which we don't need.
apt-get -y install emacs-nox
apt-get -y install hiera-eyaml yaml-mode
fi
if [ ! -f ${EYAMLDIR}/public_certkey.pkcs7.pem ] || [ ! -f ${EYAMLDIR}/private_key.pkcs7.pem ]; then
# hiera-eyaml wants a certificate and public key, not just a public key oddly enough
echo "$0: Generating eyaml key in ${EYAMLDIR} - this might take a while..."
mkdir -p /etc/hiera/eyaml
openssl req -x509 -newkey rsa:4096 -keyout ${EYAMLDIR}/private_key.pkcs7.pem \
-out ${EYAMLDIR}/public_certkey.pkcs7.pem -days 3653 -nodes -sha256 \
-subj "/C=SE/O=SUNET/OU=EYAML/CN=$(hostname)"
rm -f ${EYAMLDIR}/public_key.pkcs7.pem # cleanup
fi
mkdir -p "$(dirname "${stamp}")"
touch "$stamp"