#!/bin/bash

set -eux # -x for verbose logging to juju debug-log


MAIL_NAME=${MAIL_NAME:-localhost}
MAIL_DOMAINNAME=${MAIL_DOMAINNAME:-"localdomain"}
MAIL_SATTELITE_RELAYHOST=${MAIL_SATTELITE_RELAYHOST:-}

##
## Mail facilities (install working 'mail' command)
##

(
    debconf-set-selections <<< "postfix postfix/mailname string ${MAIL_NAME}.${MAIL_DOMAINNAME}" &&
    debconf-set-selections <<< "postfix postfix/main_mailer_type select 'Local only'" &&

    apt-get install -y postfix mailutils &&

    postconf inet_interfaces=loopback-only &&

    [ -z "$MAIL_SATTELITE_RELAYHOST" ] && postconf relayhost="$MAIL_SATTELITE_RELAYHOST"
    postfix reload
)


##
## Test:
##
# echo "test"  |  mail vaab@kal.fr