Update check_xfs.py

check_xfs.py

@@ -3,6 +3,7 @@ import subprocess
 import sys
 import re
 import argparse
+import os
 
 ESC = {"reset": "\033[0m", "red": "\033[31m", "yellow": "\033[33m", "green": "\033[32m", "cyan": "\033[36m", "bold": "\033[1m"}
 
@@ -24,6 +25,11 @@ def find_xfs_mounts():
             xfs_mounts.append(parts[2])
     return xfs_mounts
 
+def is_xfs_mount(mount):
+    """Check if mount point is actually XFS"""
+    mounts_output = run_cmd(f"mount | grep {re.escape(mount)}")
+    return "xfs" in mounts_output.lower()
+
 def check_disk_usage(mount):
     output = run_cmd(f"df -h {mount}")
     for line in output.splitlines():
@@ -42,24 +48,18 @@ def check_xfs_repair(mount):
         return False, output
     return True, output
 
-def print_status(status, msg):
-    color_map = {0: "green", 1: "yellow", 2: "red", 3: "red"}
-    prefix = {0: "OK", 1: "WARNING", 2: "CRITICAL", 3: "UNKNOWN"}
-    print(f"{color_text(prefix[status], color_map[status])}: {msg}")
-
 def main():
     parser = argparse.ArgumentParser(
-        add_help=False,  # Disable default help to customize
+        add_help=False,
         description="XFS Filesystem Health Check",
         formatter_class=argparse.RawDescriptionHelpFormatter,
         epilog="""
 Examples:
-  %(prog)s                           # Check all XFS mounts (shows help if no mounts found)
+  %(prog)s                           # Check all XFS mounts
   %(prog)s --list                    # List available XFS mounts
   %(prog)s /data                     # Check specific mount
   %(prog)s -m /data,/var             # Check multiple mounts
   %(prog)s -w 85 -c 95               # Custom thresholds
-  %(prog)s -m /data -w 80 -c 90      # Mount + thresholds
         """
     )
     
@@ -69,11 +69,11 @@ Examples:
     parser.add_argument('-w', '--warn-threshold', type=int, default=80, help='Warning threshold %% (default: 80)')
     parser.add_argument('-c', '--crit-threshold', type=int, default=90, help='Critical threshold %% (default: 90)')
     
-    # Positional argument for single mount
     parser.add_argument('mount', nargs='?', help='Single mount point to check')
     
     args = parser.parse_args()
 
+    # Nagios: --help and --list exit 0 (OK)
     if args.help:
         parser.print_help()
         sys.exit(0)
@@ -92,18 +92,14 @@ Examples:
     target_mounts = []
     if args.mount:
         target_mounts = [m.strip() for m in args.mount.split(',') if m.strip()]
-    elif args.mount is not None:  # Positional arg
+    elif args.mount is not None:
         target_mounts = [args.mount]
     else:
         target_mounts = find_xfs_mounts()
 
+    # Nagios: No mounts = UNKNOWN (3)
     if not target_mounts:
-        print(color_text("No XFS mount points found or specified.", "yellow"))
+        print(color_text("UNKNOWN No XFS mount points found or specified|", "yellow"))
-        print("\nAvailable commands:")
-        print("  python3 check_xfs.py --list          # Show available XFS mounts")
-        print("  python3 check_xfs.py /data           # Check specific mount")
-        print("  python3 check_xfs.py -m /data,/var   # Check multiple mounts")
-        print("  python3 check_xfs.py -h              # Full help")
         sys.exit(3)
 
     warn_threshold = args.warn_threshold
@@ -111,6 +107,7 @@ Examples:
     global_status = 0
     all_perfdata = []
 
+    # Human-readable output (colorful)
     print(color_text("Checking XFS filesystems:", "bold"))
     print(f"Thresholds: WARN>{warn_threshold}%% CRIT>{crit_threshold}%%")
     print("=" * 60)
@@ -118,10 +115,18 @@ Examples:
     for mount in target_mounts:
         print(f"\n{color_text(mount, 'cyan')}")
 
+        # Validate it's actually XFS
+        if not is_xfs_mount(mount):
+            print(color_text("  UNKNOWN: Mount point not found or not XFS", "red"))
+            global_status = max(global_status, 3)
+            all_perfdata.append(f"{mount}_status=3")
+            continue
+
         usage_pct, size, avail = check_disk_usage(mount)
         if usage_pct is None:
             print(color_text("  UNKNOWN: Unable to read disk usage", "red"))
             global_status = max(global_status, 3)
+            all_perfdata.append(f"{mount}_status=3")
             continue
 
         usage_status = 0
@@ -135,22 +140,35 @@ Examples:
 
         repair_ok, repair_out = check_xfs_repair(mount)
         if not repair_ok:
-            print(color_text("  CRITICAL: XFS filesystem issues detected:", "red"))
+            print(color_text("  CRITICAL: XFS filesystem issues detected", "red"))
-            print(f"    {repair_out[:400]}...")
+            print(f"    {repair_out[:200]}...")
             global_status = max(global_status, 2)
+            xfs_status = 2
         else:
             print(color_text("  XFS filesystem OK (xfs_repair dry-run)", "green"))
+            xfs_status = 0
 
-        global_status = max(global_status, usage_status)
+        # Final status for this mount
-        all_perfdata.append(f"{mount}_used_pct={usage_pct};{warn_threshold};{crit_threshold} size={size} avail={avail}")
+        mount_status = max(usage_status, xfs_status)
+        global_status = max(global_status, mount_status)
+
+        # Nagios perfdata: metric=value;warn;crit;min;max
+        perf = f"used_pct={usage_pct};{warn_threshold};{crit_threshold};0;100 size={size} avail={avail} xfs_repair={xfs_status}"
+        all_perfdata.append(perf)
 
     perfdata = " ".join(all_perfdata)
-    print("\n" + "=" * 60)
     status_text = {0: "OK", 1: "WARNING", 2: "CRITICAL", 3: "UNKNOWN"}
+    
+    # Colorful human output
     status_color = "green" if global_status == 0 else "yellow" if global_status == 1 else "red"
+    print("\n" + "=" * 60)
     print(color_text(f"FINAL STATUS: {status_text[global_status]}", status_color))
     print(f"| {perfdata}")
+    
+    # NAGIOS: Clean single-line output (no colors, parseable)
+    print(f"\n{status_text[global_status]} XFS check complete| {perfdata}")
 
+    # Nagios standard exit codes
     sys.exit(global_status)
 
 if __name__ == "__main__":