From 8d3607c03adec1f56d5053c1f2e4e65b30acd759 Mon Sep 17 00:00:00 2001
From: Carlo Landmeter <clandmeter@alpinelinux.org>
Date: Wed, 11 Jul 2018 10:57:35 +0000
Subject: make notifications optional/configurable

---
 alpine-backup | 12 ++++++++----
 rbu.conf      |  6 ++++++
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/alpine-backup b/alpine-backup
index 8e6ffbf..7acc3a9 100755
--- a/alpine-backup
+++ b/alpine-backup
@@ -8,6 +8,13 @@ die() {
 	exit 1
 }
 
+mqtt_notify() {
+	local status="$1" size="$2" duration="$3"
+	local payload=$(printf '{ "status": "%s", "size": %u, "duration": %u }' "$status" "$size" "$duration")
+	local json=$(printf '{ "host": "%s", "key": "backup", "payload": %s }' "$FQDN" "$payload")
+	mosquitto_pub -h "$RBU_MQTT_HOST" $RBU_MQTT_TLS -t "$RBU_MQTT_TOPIC" -m "$json" $RBU_MQTT_AUTH
+}
+
 for cmd in $CMD_DEPS; do
 	command -v $cmd >/dev/null 2>&1 || \
 		die "Error: command \"$cmd\" not found."
@@ -54,8 +61,5 @@ fi
 ssh "$RBU_SERVER" mkdir -p $FQDN/logs
 scp -q $LOGFILE "$RBU_SERVER:$FQDN/logs"
 
-PAYLOAD=$(printf '{ "status": "%s", "size": %u, "duration": %u }' "$STATUS" "$SIZE" "$DURATION")
-JSON=$(printf '{ "host": "%s", "key": "backup", "payload": %s }' "$FQDN" "$PAYLOAD")
-
-mosquitto_pub -h msg.alpinelinux.org -t "monitoring/updates" -m "$JSON"
+[ -n "$RBU_MQTT_HOST" ] && mqtt_notify "$STATUS" "$SIZE" "$DURATION"
 
diff --git a/rbu.conf b/rbu.conf
index 797adb2..1c40f13 100644
--- a/rbu.conf
+++ b/rbu.conf
@@ -16,6 +16,12 @@ export RBU_CACHE=/var/cache/backup
 export RBU_LOCATION="$LBU_BACKUPDIR"
 # ssh backup server to send backups to
 export RBU_SERVER="user@backupserver.tld"
+# MQTT notification settings
+# Comment RBU_MQTT_HOST to disable notifications
+# export RBU_MQTT_HOST=
+# export RBU_MQTT_TOPIC=
+# export RBU_MQTT_TLS="-p 8883 --cafile /etc/ssl/cert.pem"
+# export RBU_MQTT_AUTH="-u username -P password"
 
 # Custom profile settings
 
-- 
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