Monitoring: Add check_fs_ro.sh plugin.

1 files changed, 67 insertions, 0 deletions

diff --git a/usr-lib-nagios-plugins/check_fs_ro.sh b/usr-lib-nagios-plugins/check_fs_ro.sh
new file mode 100644
index 0000000..bed8083
--- /dev/null
+++ b/usr-lib-nagios-plugins/check_fs_ro.sh
@@ -0,0 +1,67 @@
+#!/bin/bash
+# Copyright (C) 2016 Mike Gabriel
+#
+# File:     check_fs_ro.sh
+# Author:   Mike Gabriel
+# Date:     06 Sep 2016
+# Version:  0.11
+
+# LICENSE: MIT/Expat
+
+set -f
+shopt -u extglob
+
+# Program args
+ME="$0"
+CMDLINE="$@"
+
+NAGOK=0
+NAGWARN=1
+NAGCRIT=2
+NAGUNKN=3
+
+usage()
+{
+    echo "Check that ext[2|3|4], btrfs or xfs filesystems are not read-only."
+}
+
+parse_options()
+{
+    local new
+
+    set -- $CMDLINE
+    while true
+    do
+        case $1 in
+            #-v) shift ; gVersion=$1
+            #;;
+            -h) usage ; exit 0
+            ;;
+            ?*) echo "Syntax error." ; exit 1
+            ;;
+        esac
+        shift 1 || break
+    done
+}
+
+main()
+{
+    parse_options
+
+    retval=$NAGOK
+
+    grep -E '^.*\ .*\ (ext.*|btrfs|xfs)\ ro,.*$' /proc/mounts | while read fs; do
+        rofs=`echo $fs | awk '{ print $2; }'`
+        echo "CRITICAL: $rofs is a read-only filesystem."
+    done
+    
+    if ! grep -E '^.*\ .*\ (ext.*|btrfs|xfs)\ ro,.*$' /proc/mounts 1>/dev/null; then
+        echo "OK."
+    else
+        retval=$NAGCRIT
+    fi
+
+    exit $retval
+}
+
+main