diff --git a/_grains/ceph.py b/_grains/ceph.py
new file mode 100644
index 0000000..1b4dfb2
--- /dev/null
+++ b/_grains/ceph.py
@@ -0,0 +1,76 @@
+#!/usr/bin/env python
+
+
+def main():
+
+    from subprocess import check_output
+    import shlex
+    import os
+    import re
+
+    # osd
+    mount_path = check_output("df -h | awk '{print $6}' | grep ceph | sed 's/[0-9]*//g' | awk 'NR==1{print $1}'", shell=True).rstrip()
+    sed = 'sed \'s#{0}##g\''.format(mount_path)
+    cmd = "df -h | awk '{print $1,$6}' | grep ceph | " + sed
+    osd_output = check_output(cmd, shell=True)
+    grain = {}
+    grain["ceph"] = {}
+    if osd_output:
+        devices = {}
+        for line in osd_output.splitlines():
+            device = line.split()
+            dev = device[0].replace('1','')
+            device[0] = device[1]
+            devices[device[0]] = {}
+            devices[device[0]]['dev'] = dev
+            tline = check_output("ceph osd tree | awk '{print $1,$2,$3,$4}' | grep -w 'osd." + device[0] + "'", shell=True)
+            osd = tline.split()
+            crush_class = osd[1]
+            crush_weight = osd[2]
+            devices[device[0]]['class'] = crush_class
+            devices[device[0]]['weight'] = crush_weight
+        grain["ceph"]["ceph_disk"] = devices
+
+    # keyrings
+    directory = '/etc/ceph/'
+    keyrings = {}
+    if os.path.isdir(directory):
+        for filename in os.listdir(directory):
+            if filename.endswith(".keyring") and filename.startswith("ceph.client"):
+                keyring_output = open(os.path.join(directory, filename), "r")
+                keyring_name = re.search('ceph.client.(.+?).keyring', filename).group(1)
+                if keyring_output:
+                    keyrings[keyring_name] = {}
+                    for line in keyring_output:
+                        attr = shlex.split(line)
+                        if attr:
+                            if attr[0] == 'key':
+                                keyrings[keyring_name]['key'] = attr[2]
+                            if attr[0] == 'caps' and 'caps' in keyrings[keyring_name]:
+                                keyrings[keyring_name]['caps'][attr[1]] = attr[3]
+                            elif attr[0] == 'caps' and 'caps' not in keyrings[keyring_name]:
+                                keyrings[keyring_name]['caps'] = {}
+                                keyrings[keyring_name]['caps'][attr[1]] = attr[3]
+        if keyrings:
+            grain["ceph"]["ceph_keyring"] = keyrings
+
+    # mon keyring
+    hostname = check_output("hostname", shell=True).rstrip()
+    filepath = "/var/lib/ceph/mon/ceph-{0}/keyring".format(hostname)
+    if os.path.isfile(filepath):
+        mon_key_output = open(filepath, "r")
+        if mon_key_output:
+            keyrings['mon'] = {}
+            for line in mon_key_output:
+                attr = shlex.split(line)
+                if attr:
+                    if attr[0] == 'key':
+                        keyrings['mon']['key'] = attr[2]
+                    if attr[0] == 'caps' and 'caps' in keyrings['mon']:
+                        keyrings['mon']['caps'][attr[1]] = attr[3]
+                    elif attr[0] == 'caps' and 'caps' not in keyrings['mon']:
+                        keyrings['mon']['caps'] = {}
+                        keyrings['mon']['caps'][attr[1]] = attr[3]
+            grain["ceph"]["ceph_keyring"] = keyrings
+
+    return grain