Rename all the things

[monosys] / healthcheck / checkspace

diff --git a/healthcheck/checkspace b/healthcheck/checkspace
new file mode 100755 (executable)
index 0000000..468b749
--- /dev/null
+++ b/healthcheck/checkspace
@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+
+import os
+import sys
+
+def pp_size(size):
+    suffixes = ["", "KiB", "MiB", "GiB"]
+    for i, suffix in enumerate(suffixes):
+        if size < 1024:
+            break
+        size /= 1024
+    return "%.2f %s" % (size, suffix)
+
+
+def check_path(path):
+    stat = os.statvfs(path)
+    total = stat.f_bsize * stat.f_blocks
+    free = stat.f_bsize * stat.f_bavail
+    warn = False
+
+    if total < 5*1024*1024*1024:
+        if free < total * 0.05:
+            warn = True
+    elif free < 2*1024*1024*1024:
+        warn = True
+
+    if warn:
+        print("WARNING! %s has only %s remaining" % (path, pp_size(free)))
+
+def read_fstab():
+    for line in open("/etc/fstab"):
+        if line.startswith("#"):
+            continue
+        _, path, _ = line.split(maxsplit=2)
+        if path.startswith("/"):
+            yield path
+
+def main():
+    paths = set(["/"])
+    paths.update(read_fstab())
+    for path in paths:
+        check_path(path)
+
+if __name__ == "__main__":
+    main()
+