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#!/bin/sh
#
# Set up a keyring for Hiera GPG
#   https://github.com/crayfishx/hiera-gpg
#

set -e

GNUPGHOME=/etc/hiera/gpg
export GNUPGHOME

if [ ! -f /usr/lib/ruby/vendor_ruby/gpgme.rb ]; then
    apt-get update
    apt-get -y install ruby-gpgme
fi


if [ ! -s $GNUPGHOME/secring.gpg ]; then

    if [ "x$1" != "x--force" ]; then
	echo ""
	echo "Automatic Hiera-GPG key generation DISABLED (to not block on missing entropy)"
	echo ""
	echo "  Run \`$0 --force' manually"
	echo ""
	exit 0
    fi

    if [ ! -f /usr/bin/gpg2 ]; then
	apt-get update
	apt-get -y install gnupg2
    fi

    mkdir -p $GNUPGHOME
    chmod 700 $GNUPGHOME

    TMPFILE=$(mktemp /tmp/hiera-gpg.XXXXXX)
    cat > $TMPFILE <<EOF
%echo Generating a default key
Key-Type: default
Subkey-Type: default
Name-Real: Cosmos Puppet
Name-Comment: Hiera GPG key
Name-Email: root@`hostname --fqdn`
Expire-Date: 0
# Do a commit here, so that we can later print "done" :-)
%commit
%echo done
EOF
    gpg2 --batch --gen-key $TMPFILE
    rm -f $TMPFILE
fi