Added module for disk, with function to report on disk usage

salt/modules/disk.py

@@ -0,0 +1,31 @@
+'''
+Module for gathering disk information
+'''
+import subprocess
+
+def usage():
+    '''
+    Return usage information for volumes mounted on this minion
+    
+    CLI Example:
+    salt '*' disk.usage
+    '''
+    cmd = 'df -P'
+    ret = {}
+    out = subprocess.Popen(cmd,
+            shell=True,
+            stdout=subprocess.PIPE).communicate()[0].split('\n')
+    for line in out:
+        if not line.count(' '):
+            continue
+        if line.startswith('Filesystem'):
+            continue
+        comps = line.split()
+        ret[comps[0]] = {
+            '1K-blocks': comps[1],
+            'used':      comps[2],
+            'available': comps[3],
+            'capacity':  comps[4],
+            'mountpoint':comps[5]
+        }
+    return ret