From 276bedfeaad8f6e57b5602325837e65249403477 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Sun, 22 Mar 2015 19:49:28 +0100
Subject: added agent plugin and check for glusterfs


diff --git a/agent/gluster b/agent/gluster
new file mode 100755
index 0000000..e7098cd
--- /dev/null
+++ b/agent/gluster
@@ -0,0 +1,35 @@
+#!/usr/bin/python
+
+from subprocess import check_output
+import xml.etree.ElementTree as ET
+
+print "<<<gluster>>>"
+
+print "[peers]"
+pl_xml = check_output(["gluster", "--mode=script", "--xml", "peer", "status" ])
+pl = ET.fromstring(pl_xml)
+for peer in pl.iter('peer'):
+  p = {}
+  for c in peer.iter():
+    p[c.tag]  = c.text
+  print "%s %s %s %s %s" % (p['uuid'], p['hostname'], p['connected'], p['state'], p['stateStr'])
+
+
+vl_xml = check_output(["gluster", "--mode=script", "--xml", "volume", "list" ])
+vl = ET.fromstring(vl_xml)
+for vol in vl.iter('volume'):
+  print "[volstatus:%s]" % vol.text
+  vs_xml = check_output(["gluster", "--mode=script", "--xml", "volume", "status", vol.text, "detail" ])
+  vs = ET.fromstring(vs_xml)
+  for node in vs.iter('node'):
+    n = {}
+    for c in node.iter():
+      n[c.tag] = c.text
+    print "%s %s %s %s %s %s" % (n['peerid'], n['hostname'], n['status'], n['sizeTotal'], n['sizeFree'], n['path'] )
+
+#  heal info has no xml output so far... :(
+#
+#  print "[heal:%s]" % vol.text
+#  hi_xml = check_output(["gluster", "--mode=script", "--xml", "volume", "heal", vol.text, "info" ])
+#  hi = ET.fromstring(hi_xml)
+
diff --git a/checks/gluster b/checks/gluster
new file mode 100644
index 0000000..ef3e37f
--- /dev/null
+++ b/checks/gluster
@@ -0,0 +1,134 @@
+import re
+
+OK = 0
+WARN = 1
+CRIT = 2
+UNKNOWN = 3
+
+def get_section(name, info):
+   secre = re.compile('^\[([^:]+)(:(.*))?\]$')
+
+   results = []
+
+   found = False
+   sub = None
+   lines = []
+   for line in info:
+     m = secre.match(line[0])
+     if not found:
+       if m and m.groups()[0] == name:
+         sub = m.groups()[2]
+         found = True
+         lines = []
+     else:
+       if not m:
+         lines.append(line)
+       else:
+         results.append((sub, lines))
+         if m.groups()[0] != name:
+           found = False
+         else:
+           sub = m.groups()[2]
+           lines = []
+
+   if found:
+     results.append((sub, lines))
+
+   return results
+
+
+
+
+def inventory_gluster_peers(info):
+   inventory = []
+
+   (_, lines) = get_section('peers', info)[0]
+   for line in lines:
+     inventory.append((line[0],None))
+
+   return inventory
+
+
+def check_gluster_peers(item, params, info):
+   (_, lines) = get_section('peers', info)[0]
+   for line in lines:
+     if item == line[0]:
+       if line[2] == '0':
+         return (CRIT, "not(!!) connected (%s), state %s (%s)" % (line[1], line[3], " ".join(line[4:])))
+       elif line[3] == '3':
+         return (OK, "connected (%s), state %s (%s)" % (line[1], line[3], " ".join(line[4:])))
+       return (CRIT, "connected (%s), state %s(!!) (%s)" % (line[1], line[3], " ".join(line[4:])))
+
+   return (CRIT, "peer not found!")
+
+
+
+
+def inventory_gluster_volume_status(info):
+   inventory = []
+
+   results = get_section('volstatus', info)
+   for (vol, lines) in results:
+     uuids = []
+     for line in lines:
+       uuids.append(line[0])
+
+     inventory.append((vol, uuids))
+	
+   return inventory
+
+
+def check_gluster_volume_status(item, params, info):
+   results = get_section('volstatus', info)
+   for (vol, lines) in results:
+     if vol == item:
+       uuids = dict((p, [-1]) for p in params)
+       for line in lines:
+         if line[0] in uuids.keys():
+           uuids[line[0]][0] += 1
+         else:
+           uuids[line[0]] = [1]
+
+         uuids[line[0]].extend(line[1:])
+
+       status = OK
+       message = "%i of %i bricks online" % (len(lines), len(params))
+       
+       for uuid in uuids:
+         if uuids[uuid][0] > 0:
+           message += ", found new peer %s(!) - please update inventory" % uuid
+           status = WARN if WARN > status else status
+           continue
+         if uuids[uuid][0] < 0:
+           message += ", missing peer %s(!)" % uuid
+           status = WARN if WARN > status else status
+           continue
+
+         if uuids[uuid][2] != '1':
+           message += ", status(!) of peer %s" % uuid
+           status = WARN if WARN > status else status
+           
+         p = (float(uuids[uuid][4]) / float(uuids[uuid][3])) * 100.0
+         if p < 20.0:
+           message += ", %s@%s has less then 20%% free space(!)" % (uuids[uuid][5], uuids[uuid][1])
+           status = WARN if WARN > status else status
+         if p < 10.0:
+           message += ", %s@%s has less then 10%% free space(!!)" % (uuids[uuid][5], uuids[uuid][1])
+           status = CRIT if CRIT > status else status
+
+       return (status, message)
+
+   return (UNKNOWN, "volume not found!")
+
+
+check_info["gluster.peers"] = {
+    'check_function':            check_gluster_peers,
+    'inventory_function':        inventory_gluster_peers,
+    'service_description':       'state of glusterfs peer',
+}
+
+check_info["gluster.vol_status"] = {
+    'check_function':            check_gluster_volume_status,
+    'inventory_function':        inventory_gluster_volume_status,
+    'service_description':       'state of glusterfs volume',
+}
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