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nagios-nrpe: Improve readability for check_mount_rw
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Brice Waegeneire 2022-03-10 16:20:30 +01:00
parent a733e2794f
commit c880ce43a2
1 changed files with 16 additions and 6 deletions
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22
nagios-nrpe/files/plugins/check_mount_rw
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@ -1,30 +1,40 @@
#!/bin/sh #!/bin/sh
#
# Verify that given mountpoints have 'read-write' option.
output=$(mktemp --tmpdir $(basename $0).XXXXXXXXXX) output=$(mktemp --tmpdir $(basename "$0").XXXXXXXXXX)
critical_count=0 critical_count=0
ok_count=0 ok_count=0
trap "rm -f $output" EXIT trap "rm -f $output" EXIT
for mountpoint in $@; do for mountpoint in $@; do
# We verify no mointpoints have 'read-only' option instead of checking
# for 'read-write' option, because there could be multiple device
# mounted on a sigle path. In that edge case only checking for the
# presence of the 'read-write' option would yeild a flase positive.
if findmnt -O ro --noheadings "$mountpoint" 1>/dev/null 2>&1; then if findmnt -O ro --noheadings "$mountpoint" 1>/dev/null 2>&1; then
echo "CRITICAL - $mountpoint" >> "$output" echo "CRITICAL - $mountpoint" >> "$output"
critical_count=$(( critical_count + 1)) critical_count=$(( critical_count + 1))
else else
echo "OK - $mountpoint" >> "$output" echo "OK - $mountpoint" >> "$output"
ok_count=$(( ok_count + 1)) ok_count=$(( ok_count + 1))
fi fi
done done
total_count=$(( ok_count + critical_count )) total_count=$(( ok_count + critical_count ))
plural=''
test "$total_count" -gt 1 && plural='s'
if [ $ok_count -eq $total_count ]; then if [ $ok_count -eq $total_count ]; then
printf "OK - %d/%d no read-only mountpoint\n\n" "$ok_count" "$total_count" printf "OK - %d/%d mountpoint%s have 'read-write' option\n\n" \
"$ok_count" "$total_count" "$plural"
cat "$output" cat "$output"
exit 0 exit 0
else else
printf "CRITICAL - %d/%d read-only mountpoint\n\n" "$critical_count" "$total_count" printf "CRITICAL - %d/%d mountpoint%s don't have 'read-write' option\n\n" \
"$critical_count" "$total_count" "$plural"
cat "$output" cat "$output"
exit 2 exit 2
fi fi