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Variables privées dans common + optim lecture conf NRPE

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William Hirigoyen 2024-03-29 11:27:53 +01:00
parent 5b460bf65b
commit b3751c3f70
1 changed files with 72 additions and 72 deletions
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144
nagios-nrpe/files/monitoringctl_common
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@ -13,6 +13,7 @@ readonly debian_major_version
# If no time limit is provided in CLI or found in file, this value is used # If no time limit is provided in CLI or found in file, this value is used
readonly default_disabled_time="1h" readonly default_disabled_time="1h"
_nrpe_conf_lines='' # populated at the end of the file
function error() { function error() {
@ -50,8 +51,8 @@ END
# Fail if argument does not respect format: XwXdXhXmXs, XhX, XmX # Fail if argument does not respect format: XwXdXhXmXs, XhX, XmX
function filter_duration() { function filter_duration() {
# $1: duration in format specified above # $1: duration in format specified above
time_regex="^([0-9]+d)?(([0-9]+h(([0-9]+m?)|([0-9]+m([0-9]+s?)?))?)|(([0-9]+m([0-9]+s?)?)?))?$" _time_regex="^([0-9]+d)?(([0-9]+h(([0-9]+m?)|([0-9]+m([0-9]+s?)?))?)|(([0-9]+m([0-9]+s?)?)?))?$"
if [[ "${1}" =~ ${time_regex} ]]; then if [[ "${1}" =~ ${_time_regex} ]]; then
return 0 return 0
fi fi
return 1 return 1
@ -74,31 +75,31 @@ function time_to_seconds() {
# Print re-enable time in secs # Print re-enable time in secs
function get_enable_time() { function get_enable_time() {
# $1: wrapper name # $1: wrapper name
disable_file_path="$(get_disable_file_path "${1}")" _disable_file_path="$(get_disable_file_path "${1}")"
if [ ! -e "${disable_file_path}" ]; then if [ ! -e "${_disable_file_path}" ]; then
return return
fi fi
enable_secs="$(grep -v -E "^\s*#" "${disable_file_path}" | sed '/^$/d' | head -n1 | awk '/^[0-9]+$/ {print $1}')" _enable_secs="$(grep -v -E "^\s*#" "${_disable_file_path}" | sed '/^$/d' | head -n1 | awk '/^[0-9]+$/ {print $1}')"
# If file is empty, use file last change date plus default disabled time # If file is empty, use file last change date plus default disabled time
if [ -z "${enable_secs}" ]; then if [ -z "${_enable_secs}" ]; then
file_last_change_secs="$(stat -c %Z "${disable_file_path}")" _file_last_change_secs="$(stat -c %Z "${_disable_file_path}")"
default_disabled_time_secs="$(time_to_seconds "${default_disabled_time}")" _default_disabled_time_secs="$(time_to_seconds "${default_disabled_time}")"
enable_secs="$(( file_last_change_secs + default_disabled_time_secs ))" _enable_secs="$(( _file_last_change_secs + _default_disabled_time_secs ))"
fi fi
echo "${enable_secs}" echo "${_enable_secs}"
} }
# Print disable message # Print disable message
function get_disable_message() { function get_disable_message() {
# $1: wrapper name # $1: wrapper name
disable_file_path="$(get_disable_file_path "${1}")" _disable_file_path="$(get_disable_file_path "${1}")"
if [ ! -e "${disable_file_path}" ]; then if [ ! -e "${_disable_file_path}" ]; then
return return
fi fi
disable_msg="$(sed '/^$/d' "${disable_file_path}" | tail -n+2 | tr '\n' ' ' | awk '{$1=$1;print}')" _disable_msg="$(sed '/^$/d' "${_disable_file_path}" | tail -n+2 | tr '\n' ' ' | awk '{$1=$1;print}')"
echo "${disable_msg}" echo "${_disable_msg}"
} }
function now_secs() { function now_secs() {
@ -112,40 +113,39 @@ function now_iso() {
# Print delay before re-enable in secs # Print delay before re-enable in secs
function enable_delay() { function enable_delay() {
# $1: re-enable time in secs # $1: re-enable time in secs
#now_secs=$(date +"%s")
echo $(( ${1} - $(now_secs) )) echo $(( ${1} - $(now_secs) ))
} }
# Converts delay (in seconds) into human readable duration # Converts delay (in seconds) into human readable duration
function delay_to_string() { function delay_to_string() {
# $1: delay in secs # $1: delay in secs
delay_days="$(( ${1} /86400 ))" _delay_days="$(( ${1} /86400 ))"
if [ "${delay_days}" -eq 0 ]; then delay_days="" if [ "${_delay_days}" -eq 0 ]; then _delay_days=""
else delay_days="${delay_days}d"; fi else _delay_days="${_delay_days}d"; fi
delay_hours="$(( (${1} %86400) /3600 ))" _delay_hours="$(( (${1} %86400) /3600 ))"
if [ "${delay_hours}" -eq 0 ]; then delay_hours="" if [ "${_delay_hours}" -eq 0 ]; then _delay_hours=""
else delay_hours="${delay_hours}h"; fi else _delay_hours="${_delay_hours}h"; fi
delay_minutes="$(( ((${1} %86400) %3600) /60 ))" _delay_minutes="$(( ((${1} %86400) %3600) /60 ))"
if [ "${delay_minutes}" -eq 0 ]; then delay_minutes="" if [ "${_delay_minutes}" -eq 0 ]; then _delay_minutes=""
else delay_minutes="${delay_minutes}m"; fi else _delay_minutes="${_delay_minutes}m"; fi
delay_seconds="$(( ((${1} %86400) %3600) %60 ))" _delay_seconds="$(( ((${1} %86400) %3600) %60 ))"
if [ "${delay_seconds}" -eq 0 ]; then delay_seconds="" if [ "${_delay_seconds}" -eq 0 ]; then _delay_seconds=""
else delay_seconds="${delay_seconds}s"; fi else _delay_seconds="${_delay_seconds}s"; fi
echo "${delay_days}${delay_hours}${delay_minutes}${delay_seconds}" echo "${_delay_days}${_delay_hours}${_delay_minutes}${_delay_seconds}"
} }
function is_disabled() { function is_disabled() {
# $1: check name # $1: check name
wrapper="$(get_check_wrapper_name "${1}")" _wrapper="$(get_check_wrapper_name "${1}")"
disable_file_path="$(get_disable_file_path "${wrapper}")" _disable_file_path="$(get_disable_file_path "${_wrapper}")"
if [ -e "${disable_file_path}" ]; then if [ -e "${_disable_file_path}" ]; then
enable_time="$(get_enable_time "${wrapper}")" _enable_time="$(get_enable_time "${_wrapper}")"
enable_delay="$(enable_delay "${enable_time}")" _enable_delay="$(enable_delay "${_enable_time}")"
if [ "${enable_delay}" -le "0" ]; then if [ "${_enable_delay}" -le "0" ]; then
echo "False" echo "False"
else else
echo "True" echo "True"
@ -168,7 +168,7 @@ function get_disable_file_path() {
# and in the same order than NRPE does (taking account that # and in the same order than NRPE does (taking account that
# order changes from Deb10) # order changes from Deb10)
function get_nrpe_conf() { function get_nrpe_conf() {
_get_conf_from_file "${nrpe_conf_path}" echo "${_nrpe_conf_lines}"
} }
# Private function to recursively get NRPE conf from file # Private function to recursively get NRPE conf from file
@ -176,18 +176,18 @@ function _get_conf_from_file() {
# $1: NRPE conf file (.cfg) # $1: NRPE conf file (.cfg)
if [ ! -f "${1}" ]; then return; fi if [ ! -f "${1}" ]; then return; fi
conf_lines=$(grep -E -R -v --no-filename "^\s*(#.*|)$" "${1}") _conf_lines=$(grep -E -R -v --no-filename "^\s*(#.*|)$" "${1}")
while read -r line; do while read -r _line; do
if [[ "${line}" =~ .*'include='.* ]]; then if [[ "${_line}" =~ .*'include='.* ]]; then
conf_file=$(echo "${line}" | cut -d= -f2) _conf_file=$(echo "${_line}" | cut -d= -f2)
_get_conf_from_file "${conf_file}" _get_conf_from_file "${_conf_file}"
elif [[ "${line}" =~ .*'include_dir='.* ]]; then elif [[ "${_line}" =~ .*'include_dir='.* ]]; then
conf_dir=$(echo "${line}" | cut -d= -f2) _conf_dir=$(echo "${_line}" | cut -d= -f2)
_get_conf_from_dir "${conf_dir}" _get_conf_from_dir "${_conf_dir}"
else else
echo "${line}" echo "${_line}"
fi fi
done <<< "${conf_lines}" done <<< "${_conf_lines}"
} }
# Private function to recursively get NRPE conf from directory # Private function to recursively get NRPE conf from directory
@ -197,40 +197,38 @@ function _get_conf_from_dir() {
if [ "${debian_major_version}" -ge 10 ]; then if [ "${debian_major_version}" -ge 10 ]; then
# From Deb10, NRPE use scandir() with alphasort() function # From Deb10, NRPE use scandir() with alphasort() function
sort_command="sort" _sort_command="sort"
else else
# Before Deb10, NRPE use loaddir(), like find utility # Before Deb10, NRPE use loaddir(), like find utility
sort_command="cat -" _sort_command="cat -"
fi fi
# Add conf files in dir to be processed recursively # Add conf files in dir to be processed recursively
for file in $(find "${1}" -maxdepth 1 -name "*.cfg" | ${sort_command}); do for _file in $(find "${1}" -maxdepth 1 -name "*.cfg" | ${_sort_command}); do
if [ -f "${file}" ]; then if [ -f "${_file}" ]; then
_get_conf_from_file "${file}" _get_conf_from_file "${_file}"
elif [ -d "${file}" ]; then elif [ -d "${_file}" ]; then
_get_conf_from_dir "${file}" _get_conf_from_dir "${_file}"
fi fi
done done
} }
# Print the checks that are configured in NRPE # Print the checks that are configured in NRPE
function get_checks_names() { function get_checks_names() {
conf_lines="$(get_nrpe_conf "${nrpe_conf_path}")" echo "${_nrpe_conf_lines}" | grep -E "command\[check_.*\]=" | awk -F"[\\\[\\\]=]" '{sub("check_", "", $2); print $2}' | sort | uniq
echo "${conf_lines}" | grep -E "command\[check_.*\]=" | awk -F"[\\\[\\\]=]" '{sub("check_", "", $2); print $2}' | sort | uniq
} }
# Print the commands defined for check $1 in NRPE configuration # Print the commands defined for check $1 in NRPE configuration
function get_check_commands() { function get_check_commands() {
# $1: check name # $1: check name
conf_lines="$(get_nrpe_conf "${nrpe_conf_path}")" echo "${_nrpe_conf_lines}" | grep -E "command\[check_${1}\]" | cut -d'=' -f2-
echo "${conf_lines}" | grep -E "command\[check_${1}\]" | cut -d'=' -f2-
} }
# Print the checks that have no alerts_wrapper in NRPE configuration # Print the checks that have no alerts_wrapper in NRPE configuration
function not_wrapped_checks() { function not_wrapped_checks() {
for check in $(get_checks_names); do for _check in $(get_checks_names); do
if ! is_wrapped "${check}"; then if ! is_wrapped "${_check}"; then
echo "${check}" echo "${_check}"
fi fi
done done
} }
@ -238,8 +236,8 @@ function not_wrapped_checks() {
# Fail if check is not wrapped # Fail if check is not wrapped
function is_wrapped() { function is_wrapped() {
# $1: check name # $1: check name
cmd=$(get_check_commands "${1}" | tail -n1) _cmd=$(get_check_commands "${1}" | tail -n1)
if echo "${cmd}" | grep --quiet --no-messages alerts_wrapper; then if echo "${_cmd}" | grep --quiet --no-messages alerts_wrapper; then
return 0 return 0
fi fi
return 1 return 1
@ -247,23 +245,22 @@ function is_wrapped() {
# Print the names that are defined in the wrappers of the checks # Print the names that are defined in the wrappers of the checks
function get_wrappers_names() { function get_wrappers_names() {
conf_lines="$(get_nrpe_conf "${nrpe_conf_path}")" echo "${_nrpe_conf_lines}" | grep -s "alerts_wrapper" | awk '{ for (i=1 ; i<=NF; i++) { if ($i ~ /^(-n|--name)$/) { print $(i+1); break } } }' | tr ',' '\n' | sort | uniq
echo "${conf_lines}" | grep -s "alerts_wrapper" | awk '{ for (i=1 ; i<=NF; i++) { if ($i ~ /^(-n|--name)$/) { print $(i+1); break } } }' | tr ',' '\n' | sort | uniq
} }
# Print the wrapper name of the check # Print the wrapper name of the check
function get_check_wrapper_name() { function get_check_wrapper_name() {
# $1: check name # $1: check name
cmd=$(get_check_commands "${1}" | tail -n1) _cmd=$(get_check_commands "${1}" | tail -n1)
if echo "${cmd}" | grep --quiet --no-messages alerts_wrapper; then if echo "${_cmd}" | grep --quiet --no-messages alerts_wrapper; then
echo "${cmd}" | awk '/--name/ {match($0, /--name\s*([a-zA-Z0-9_\-]*)\s*/, m); print m[1]}' echo "${_cmd}" | awk '/--name/ {match($0, /--name\s*([a-zA-Z0-9_\-]*)\s*/, m); print m[1]}'
fi fi
} }
function is_check() { function is_check() {
# $1: check name # $1: check name
checks="$(get_checks_names)" _checks="$(get_checks_names)"
if echo "${checks}" | grep --quiet -E "^${1}$"; then if echo "${_checks}" | grep --quiet -E "^${1}$"; then
return 0 return 0
fi fi
return 1 return 1
@ -271,8 +268,8 @@ function is_check() {
function is_wrapper() { function is_wrapper() {
# $1: wrapper name # $1: wrapper name
wrappers="$(get_wrappers_names)" _wrappers="$(get_wrappers_names)"
if echo "${wrappers}" | grep --quiet -E "^${1}$"; then if echo "${_wrappers}" | grep --quiet -E "^${1}$"; then
return 0 return 0
fi fi
return 1 return 1
@ -281,6 +278,9 @@ function is_wrapper() {
# Print the checks that name this wrapper # Print the checks that name this wrapper
function get_wrapper_checks() { function get_wrapper_checks() {
# $1: wrapper name # $1: wrapper name
conf_lines="$(get_nrpe_conf "${nrpe_conf_path}")" echo "${_nrpe_conf_lines}" | grep -E "command\[check_.*\]=" | grep -E "\-\-name\s*${1}" | awk -F"[\\\[\\\]=]" '{sub("check_", "", $2); print $2}' | sort | uniq | xargs
echo "${conf_lines}" | grep -E "command\[check_.*\]=" | grep -E "\-\-name\s*${1}" | awk -F"[\\\[\\\]=]" '{sub("check_", "", $2); print $2}' | sort | uniq | xargs
} }
# Load NRPE configuration
_nrpe_conf_lines="$(_get_conf_from_file "${nrpe_conf_path}")"