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1 file changed, 50 insertions
mqtt_shutdown_listen.sh(Datei erstellt)
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| 1 | + | #!/usr/bin/env zsh | |
| 2 | + | ||
| 3 | + | ||
| 4 | + | if [ -z "$RASPISTUFF_DIR" ];then | |
| 5 | + | export RASPISTUFF_DIR="$(cd "$(dirname "$(readlink -f "${(%):-%x}")")" && pwd)" | |
| 6 | + | fi | |
| 7 | + | ||
| 8 | + | ||
| 9 | + | cd $RASPISTUFF_DIR | |
| 10 | + | ||
| 11 | + | ||
| 12 | + | if [ ! -f "$RASPISTUFF_DIR/secret/credentials_mqtt.sh" ]; then | |
| 13 | + | echo "$RASPISTUFF_DIR/secret/credentials_mqtt.sh not found. Will NOT listen for MQTT." | |
| 14 | + | exit 1 | |
| 15 | + | fi | |
| 16 | + | ||
| 17 | + | source $RASPISTUFF_DIR/secret/credentials_mqtt.sh | |
| 18 | + | ||
| 19 | + | shutdown_if_needed() { | |
| 20 | + | ||
| 21 | + | local payload=$1 | |
| 22 | + | echo "TOPIC $MQTT_TOPIC is now = $1" | |
| 23 | + | if [ "$payload" = "1" ]; then | |
| 24 | + | echo "Shutdown command received. Shutting down the system..." | |
| 25 | + | ||
| 26 | + | MSG_TITLE="✋ Shutdown $(hostname)" | |
| 27 | + | MSG_TEXT="MQTT Shutdown requested in $MQTT_TOPIC" | |
| 28 | + | ||
| 29 | + | NOTIFY_SCRIPT="$RASPISTUFF_DIR/notify.sh" | |
| 30 | + | #Requires MSG_TITLE and $MSG_TEXT to be defined! | |
| 31 | + | source "$NOTIFY_SCRIPT" | |
| 32 | + | ||
| 33 | + | echo "Will shutdown in 5 seconds..." | |
| 34 | + | sleep 5 | |
| 35 | + | sudo shutdown -h now "MQTT requested shutdown in topic $MQTT_TOPIC" | |
| 36 | + | fi | |
| 37 | + | } | |
| 38 | + | ||
| 39 | + | while true; do | |
| 40 | + | ||
| 41 | + | echo "listening to topic $MQTT_TOPIC " | |
| 42 | + | mosquitto_sub -h "$MQTT_BROKER" -p "$MQTT_PORT" -t "$MQTT_TOPIC" -u "$MQTT_USER" -P "$MQTT_PASSWORD" | while read -r payload | |
| 43 | + | do | |
| 44 | + | shutdown_if_needed "$payload" | |
| 45 | + | done | |
| 46 | + | ||
| 47 | + | echo "mosquitto client EXITEDi will try again in 5 minute" | |
| 48 | + | ||
| 49 | + | sleep 300 | |
| 50 | + | done | |
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