Write filesystem stats to default postgresql database

df2db

@@ -0,0 +1,47 @@
+#!/usr/bin/python3
+
+import os
+import socket
+
+import psycopg2
+
+hostname = socket.getfqdn()
+db = psycopg2.connect('')
+csr = db.cursor()
+
+with open("/proc/mounts") as mounts:
+    for mount in mounts:
+        (dev, mountpoint, fstype, rest) = mount.split(' ', 3)
+        s = os.statvfs(mountpoint)
+        if s.f_blocks == 0:
+            continue # not a real file system
+        print(dev, mountpoint, fstype, s)
+
+        s_total = s.f_blocks * s.f_bsize
+        s_usable = (s.f_blocks - s.f_bfree + s.f_bavail) * s.f_bsize
+        s_used = (s.f_blocks - s.f_bfree) * s.f_bsize
+
+        f_total = s.f_files
+        f_usable = s.f_files - s.f_ffree + s.f_favail
+        f_used = s.f_files - s.f_ffree
+
+        csr.execute(
+                """
+                insert into df(
+                    hostname, filesystem,
+                    s_total, s_usable, s_used,
+                    f_total, f_usable, f_used
+                )
+                values (
+                    %s, %s,
+                    %s, %s, %s,
+                    %s, %s, %s
+                )
+                """,
+                (hostname, mountpoint,
+                s_total, s_usable, s_used,
+                f_total, f_usable, f_used))
+
+db.commit()
+
+