influxdb now sends hostname per default

reporters/influxdb.sh

@@ -5,16 +5,32 @@ init () {
     echo "Error: influxdb requires \$INFLUXDB_API_ENDPOINT to be set"
     exit 1
   fi
+
+  if [ -z $INFLUXDB_SEND_HOSTNAME ]; then
+    INFLUXDB_SEND_HOSTNAME=true
+  fi
+
+  if [ "$INFLUXDB_SEND_HOSTNAME" = true ]; then
+    __influxdb_columns="[\"value\",\"host\"]"
+  else
+    __influxdb_columns="[\"value\"]"
+  fi
 }
 
 report () {
   local METRIC=$1
   local VALUE=$2
+  if [ "$INFLUXDB_SEND_HOSTNAME" = true ]; then
+    local POINTS="[$VALUE,\"$HOSTNAME\"]"
+  else
+    local POINTS="[$VALUE]"
+  fi
   curl -X POST $INFLUXDB_API_ENDPOINT \
-    -d "[{\"name\":\"$METRIC\",\"columns\":[\"value\"],\"points\":[[$VALUE]]}]"
+    -d "[{\"name\":\"$METRIC\",\"columns\":$__influxdb_columns,\"points\":[$POINTS]}]"
 }
 
 docs () {
   echo "Send data to InfluxDB."
   echo "\$INFLUXDB_API_ENDPOINT="
+  echo "\$INFLUXDB_SEND_HOSTNAME=$INFLUXDB_SEND_HOSTNAME"
 }