203 lines
5.7 KiB
Bash
Executable File
203 lines
5.7 KiB
Bash
Executable File
#!/bin/sh
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# This script will check if upgrade is available for local Maco script
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# Vars {{{
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readonly PROGNAME=$(basename "${0}")
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[ -z "${DEBUG}" ] && DEBUG=1
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## Xymon
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readonly TEST="maco"
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readonly PLUGIN_RESULT="${XYMONTMP}/${MACHINEDOTS}.${TEST}.plugin_result"
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readonly PLUGIN_STATE="${XYMONTMP}/${MACHINEDOTS}.${TEST}.plugin_state"
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readonly XYMON_USERNAME="xymon"
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readonly XYMON_GROUPNAME="xymon"
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# By default, don't empty files newer than 10hours (600 minutes)
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readonly DEFAULT_MTIME_MINUTES="600"
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# Temp files
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readonly TEMP_MACO_UPDATE="${XYMONTMP}/${MACHINEDOTS}.${TEST}.maco_update"
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# define colours for graphics {{{
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# Comment these out if using older BB versions
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CLEAR_PIC="&clear"
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RED_PIC="&red"
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YELLOW_PIC="&yellow"
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GREEN_PIC="&green"
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UNKNOWN_PIC="&purple"
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# }}}
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# }}}
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# Print message with DEBUG prefix and color {{{
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debug_message() {
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local_debug_message="${1}"
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## Print message if DEBUG is enable (=0)
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[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6b\e[m\n' "DEBUG − ${PROGNAME} : ${local_debug_message}"
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}
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# }}}
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# Create or empty a file if it's too old {{{
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## First argument (required): Absolut path to the file
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## Second argument (optionnal): Maximum number of minutes since last modification
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regenerate_if_too_old() {
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## Set variables according to the number of passed arguments {{{
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case $# in
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0 )
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debug_message "regenerate_if_too_old − \
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Need at least 1 argument."
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exit 1
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;;
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1 )
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_file="${1}"
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debug_message "regenerate_if_too_old − \
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Use DEFAULT_MTIME_MINUTES value: ${DEFAULT_MTIME_MINUTES}."
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_max_mtime_minutes="${DEFAULT_MTIME_MINUTES}"
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;;
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2 )
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_file="${1}"
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_max_mtime_minutes="${2}"
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;;
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esac
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## }}}
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## If the file exists
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if [ -f "${_file}" ]; then
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_current_timestamp=$(date "+%s")
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_file_mtime_timestamp=$(stat --format="%Y" -- "${_file}")
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## Substract last modification timestamp of the file to current timestamp
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: $(( _file_mtime_seconds=_current_timestamp-_file_mtime_timestamp ))
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## Get maximum allowed mtime in seconds
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: $(( _max_mtime_seconds=_max_mtime_minutes*60 ))
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## Compare last modification mtime with the maximum allowed
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if [ "${_file_mtime_seconds}" -gt "${_max_mtime_seconds}" ]; then
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debug_message "regenerate_if_too_old − \
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Need to empty ${_file} last modification happened ${_file_mtime_seconds} seconds ago (maximum is ${_max_mtime_seconds})."
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true > "${_file}"
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chown -- "${XYMON_USERNAME}":"${XYMON_GROUPNAME}" "${_file}"
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else
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debug_message "regenerate_if_too_old − \
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Don't need to empty ${_file} last modification happened ${_file_mtime_seconds} seconds ago (maximum is ${_max_mtime_seconds})."
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fi
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else ## Else if the file don't exists, just create it
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debug_message "regenerate_if_too_old − \
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Need to create ${_file}."
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true > "${_file}"
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fi
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}
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# }}}
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# Test if a file is empty {{{
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is_file_empty() {
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_file_empty=$1
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if [ ! -s "${_file_empty}" ]; then
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debug_message "is_file_empty − \
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${_file_empty} file is empty."
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return 0
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else
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debug_message "is_file_empty − \
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${_file_empty} file is not empty."
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return 1
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fi
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}
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# }}}
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# Get Maco update state {{{
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get_maco_update() {
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maco_update_script_path="/opt/repos/ipr.scripts/cluster/maco.check.update.sh"
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maco_update_script_options="--simulate"
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## Run update_script and store result in TEMP_MACO_UPDATE file
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debug_message "get_maco_update − \
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Run \"${maco_update_script_path}\" script with \"${maco_update_script_options}\" options."
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sh "${maco_update_script_path}" "${maco_update_script_options}" >> "${TEMP_MACO_UPDATE}"
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}
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# }}}
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# Analyze maco result to define colors to send to Xymon {{{
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analyze_maco_update() {
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debug_message "analyze_maco_update − \
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Try to detect Maco update with ${TEMP_MACO_UPDATE} content."
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if grep -qE '^Local.* up to date.*' "${TEMP_MACO_UPDATE}"
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then
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## Add color and message to PLUGIN_RESULT for detailed informations
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sed "s/^/\&${GREEN_PIC} /" "${TEMP_MACO_UPDATE}" >> "${PLUGIN_RESULT}"
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## Add information to PLUGIN_STATE
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echo "3${GREEN_PIC} Maco is uptodate" >> "${PLUGIN_STATE}"
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elif grep -qE '^Latest.* available.*' "${TEMP_MACO_UPDATE}"
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then
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sed "s/^/\&${YELLOW_PIC} /" "${TEMP_MACO_UPDATE}" >> "${PLUGIN_RESULT}"
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echo "2${YELLOW_PIC} Maco needs upgrade" >> "${PLUGIN_STATE}"
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elif grep -qE '^Urgent.* available.*' "${TEMP_MACO_UPDATE}"
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then
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sed "s/^/\&${RED_PIC} /" "${TEMP_MACO_UPDATE}" >> "${PLUGIN_RESULT}"
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echo "1${RED_PIC} Maco needs urgent upgrade" >> "${PLUGIN_STATE}"
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else
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sed "s/^/\&${CLEAR_PIC} /" "${TEMP_MACO_UPDATE}" >> "${PLUGIN_RESULT}"
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echo "4${CLEAR_PIC} Maco update state is unknown" >> "${PLUGIN_STATE}"
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fi
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}
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# }}}
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# Send plugin results to Xymon server {{{
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send_result_to_xymon_server() {
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# Set the main color according to the highest alert
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COLOR=$(< "${PLUGIN_STATE}" awk '{print $1}' | sort | uniq | head -1 | cut -c3-)
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SUBJECT=$(< "${PLUGIN_STATE}" sort | uniq | head -1 | cut -d" " -f2-)
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# Send informations to Xymon server
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$XYMON "${XYMSRV}" "status ${MACHINE}.${TEST} ${COLOR} ${SUBJECT}
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==================== Detailed status ====================
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$(cat ${PLUGIN_RESULT})"
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# For testing only
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#echo "$XYMON ${XYMSRV} status ${MACHINE}.${TEST} ${COLOR} ${SUBJECT}
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#==================== Detailed status ====================
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#$(cat ${PLUGIN_RESULT})" > /tmp/xymon.maco.tmp
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}
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# }}}
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main() { # {{{
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# Create or empty previous file only if too old
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regenerate_if_too_old "${PLUGIN_RESULT}"
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regenerate_if_too_old "${PLUGIN_STATE}"
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## If any previous file is empty
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if is_file_empty "${PLUGIN_RESULT}" || is_file_empty "${PLUGIN_STATE}"; then
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## (re)check Maco update
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get_maco_update
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## Analyze Maco update result (add color,…)
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analyze_maco_update
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fi
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# Send data to Xymon server
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## and exit
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send_result_to_xymon_server \
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&& exit 0
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}
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# }}}
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main
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exit 255
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