Add script to install Salt backport into new hosts

Signed-off-by: martin f. krafft <madduck@madduck.net>

diff --git a/preseed/wheezy/commands/late_commands.d/install_salt_backport b/preseed/wheezy/commands/late_commands.d/install_salt_backport
new file mode 100755 (executable)
index 0000000..050d23c
--- /dev/null
+++ b/preseed/wheezy/commands/late_commands.d/install_salt_backport
@@ -0,0 +1,34 @@
+#!/bin/sh
+
+TMPLIST=/etc/apt/sources.list.d/tmp-backports.list
+
+echo "Temporarily enabling backports"
+sed -ne 's/-updates/-backports/p' /etc/apt/sources.list > $TMPLIST
+
+SUITE=$(tail -1 $TMPLIST | cut -d' ' -f3)
+SUITE=${SUITE%-*}
+
+cat <<_eof >> $TMPLIST
+deb http://debian.saltstack.com/debian ${SUITE}-saltstack main
+_eof
+
+cd /tmp
+wget -O salt.gpg http://debian.saltstack.com/debian-salt-team-joehealy.gpg.key
+echo "145157dfb896f7a0c1f390c6f72e6d092fbbfaf4374b510d4c7828c4177ab476  salt.gpg" | sha256sum -c || exit 1
+apt-key --keyring /etc/apt/trusted.gpg.d/salt.gpg add salt.gpg && rm salt.gpg
+
+apt-get update
+
+rm -f /etc/apt/trusted.gpg.d/salt.gpg
+
+TMPCONF=/etc/default/salt-minion
+
+echo "exit 0" > $TMPCONF
+
+echo "Installing Salt minion (possibly from $SUITE-backports and $SUITE-saltstack)"
+export DEBCONF_FRONTEND=noninteractive
+apt-get install --no-install-recommends -t $SUITE-saltstack -y salt-minion
+
+echo "pki_dir: /var/lib/salt/minion/pki" > /etc/salt/minion.d/tmp-pki-in-varlib.conf
+
+rm -f $TMPLIST $TMPCONF