Add openstack_swift_stats_ plugin

plugins/openstack_swift/openstack_swift_stats_

@@ -0,0 +1,69 @@
+#!/bin/bash
+
+ME="${0##*/}"
+CONTAINER=$(printf "$ME" | cut -d'_' -f4 -)
+# printf "$CONTAINER\n"
+
+case $1 in
+   config)
+        cat <<EOM
+multigraph openstack_swift_stats_size
+graph_title Swift container size ($CONTAINER)
+graph_category cloud
+graph_vlabel bytes
+graph_args --base=1024 -l 0
+graph_period hour
+size.label Size
+size.type GAUGE
+size.draw AREA
+size.min 0
+growth.label Growth/\${graph_period}
+growth.type DERIVE
+growth.min 0
+
+multigraph openstack_swift_stats_objects
+graph_title Swift container object count ($CONTAINER)
+graph_category cloud
+graph_vlabel 
+graph_args --base=1000 -l 0
+graph_period hour
+objects.label Objects
+objects.type GAUGE
+objects.draw AREA
+objects.min 0
+objgrowth.label Growth/\${graph_period}
+objgrowth.type DERIVE
+objgrowth.min 0
+EOM
+        exit 0;;
+esac
+
+IFS=" "
+STAT_OUTPUT=( $(swift stat $CONTAINER | awk 'NR>=3&&NR<=4 {print $2}' FS=": " ORS=" ") )
+
+# Size graph
+printf "multigraph openstack_swift_stats_size\n"
+
+# Check value is an integer.
+[ -n "${STAT_OUTPUT[1]}" ] && [ "${STAT_OUTPUT[1]}" -eq "${STAT_OUTPUT[1]}" ] 2>/dev/null
+if [ $? -ne 0 ]; then
+    printf "size.value 0\n"
+    printf "Error: no usable size value from swift command.\n" 1>&2
+    exit 1
+fi
+
+printf "size.value ${STAT_OUTPUT[1]}\ngrowth.value ${STAT_OUTPUT[1]}\n"
+
+# Objects graph
+printf "multigraph openstack_swift_stats_objects\n"
+
+[ -n "${STAT_OUTPUT[0]}" ] && [ "${STAT_OUTPUT[0]}" -eq "${STAT_OUTPUT[0]}" ] 2>/dev/null
+if [ $? -ne 0 ]; then
+    printf "objects.value 0\n"
+    printf "Error: no usable objects value from swift command.\n" 1>&2
+    exit 1
+fi
+
+printf "objects.value ${STAT_OUTPUT[0]}\nobjgrowth.value ${STAT_OUTPUT[0]}\n"
+
+