385 lines
11 KiB
Bash
Executable File
385 lines
11 KiB
Bash
Executable File
#!/bin/sh
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# This script will check if Maco require an upgrade and
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# will prepare the host in order to apply upgrade :
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# 1. Disable SGE queue
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# 2. Create a temp file (${MACO_LOCAL_DIR}/.maco.upgrade or ${MACO_LOCAL_DIR}/.maco.urgent.upgrade)
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# This script can be call by a cronjob (eg. weekly)
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# Another script should try to apply upgrades also with cron (eg. hourly)
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# Vars {{{
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readonly PROGNAME=$(basename "${0}")
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readonly PROGDIR=$(readlink -m $(dirname "${0}"))
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readonly ARGS="${*}"
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readonly NBARGS="${#}"
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[ -z "${DEBUG}" ] && DEBUG=1
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## Export DEBUG for sub-script
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export DEBUG
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# If output message should be displayed
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[ -z "${OUTPUT_MESSAGE}" ] && OUTPUT_MESSAGE=0
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## Export OUTPUT_MESSAGE for sub-script
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export OUTPUT_MESSAGE
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# If modifications should be applied
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[ -z "${SIMULATE_MODE}" ] && SIMULATE_MODE=1
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# If only urgent upgrade should be checked
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[ -z "${URGENT_ONLY_MODE}" ] && URGENT_ONLY_MODE=1
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## Colors
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readonly PURPLE='\033[1;35m'
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readonly RED='\033[0;31m'
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readonly RESET='\033[0m'
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readonly COLOR_DEBUG="${PURPLE}"
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## Maco
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readonly MACO_LOCAL_DIR="/opt/maco"
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readonly MACO_INSTALL_DIR="/mnt/store.ipr/InstallProgs/ipr/maco"
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readonly MACO_TMP_FILE="${MACO_LOCAL_DIR}/.maco.upgrade"
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readonly MACO_TMP_URGENT_FILE="${MACO_LOCAL_DIR}/.maco.urgent.upgrade"
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# }}}
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usage() { # {{{
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cat <<- EOF
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usage: $PROGNAME [-d|-h|-q|-s|-u]
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Compare current version of Maco script with the latest and
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the urgent versions then try to prepare the host by:
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* Disabling SGE queue
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EXAMPLES:
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- Verify Maco's upgrade and prepare the current host
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${PROGNAME}
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- Verify only urgent upgrade for Maco and prepare the current host
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${PROGNAME} --urgent
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OPTIONS :
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-d,--debug
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Enable debug messages.
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-h,--help
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Print this help message.
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-q,--quiet
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Disable messages on standard output (except for error).
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-s,--simulate
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Only display messages and don't manage temp files.
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-u,--urgent
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Check only for urgent upgrade.
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EOF
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}
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# }}}
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debug_message() { # {{{
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local_debug_message="${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}: ${local_debug_message}"
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return 0
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}
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# }}}
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message() { # {{{
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local_message="${1}"
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## Print message if OUTPUT_MESSAGE is enable (=0)
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[ "${OUTPUT_MESSAGE}" -eq "0" ] && printf '%b\n' "${local_message}"
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return 0
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}
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# }}}
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is_var_empty() { # {{{
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## Return False by default
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return_var_empty="1"
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## Total number of variables to test
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local_total_var="${#}"
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loop_count_var_empty="0"
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## While it remains a variable to test
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while [ "${local_total_var}" -gt "${loop_count_var_empty}" ]; do
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debug_message "is_var_empty − \
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Test var: ${1}."
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### Test if this is empty and set return value to True
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[ -z "${1}" ] && return_var_empty="0"
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### Increase the number of tested variables
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loop_count_var_empty=$((loop_count_var_empty+1))
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### Shift to the next variable
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shift
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done
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return "${return_var_empty}"
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}
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# }}}
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is_sge_master_available() { # {{{
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## Check with Netcat if SGE master (sge_qmaster) is reachable from this host.
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### -z: Only scan for listening daemons, without sending any data to them.
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### -w 10: Timeout the test after 10 seconds.
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if nc -z -w 10 "${sge_master_uri}" "${sge_master_port}"; then
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return_is_sge_master_available="0"
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debug_message "is_sge_master_available − \
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SGE Master (${sge_master_uri}:${sge_master_port}) is reachable from this host."
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else
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return_is_sge_master_available="1"
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debug_message "is_sge_master_available − \
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SGE Master (${sge_master_uri}:${sge_master_port}) is not reachable from this host."
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fi
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return "${return_is_sge_master_available}"
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}
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# }}}
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is_maco_urgent_upgrade_require() { # {{{
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return_urgent_upgrade=""
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if [ "${URGENT_TIMESTAMP}" -gt "${CURRENT_TIMESTAMP}" ]; then
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debug_message "is_maco_urgent_upgrade_require − \
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Urgent Maco upgrade is available (from version ${CURRENT_MACO_VERSION} to ${URGENT_MACO_VERSION})."
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message "Urgent Maco upgrade is available (from version ${CURRENT_MACO_VERSION} to ${URGENT_MACO_VERSION})."
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return_urgent_upgrade="0"
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## If SIMULATE_MODE is not enable
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if [ ! "${SIMULATE_MODE}" -eq 0 ]; then
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### Also create an urgent temp file that can be monitored
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### touch and append to keep existing content
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touch "${MACO_TMP_URGENT_FILE}" && echo "Urgent Maco upgrade is available (from version ${CURRENT_MACO_VERSION} to ${URGENT_MACO_VERSION})." >> "${MACO_TMP_URGENT_FILE}"
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fi
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else
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debug_message "is_maco_urgent_upgrade_require − \
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Local Maco (${CURRENT_MACO_VERSION}) is newer than urgent upgrade (${URGENT_MACO_VERSION})."
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return_urgent_upgrade="1"
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## If SIMULATE_MODE is not enable
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if [ ! "${SIMULATE_MODE}" -eq 0 ]; then
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## Ensure urgent temp file is not present
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rm -f -- "${MACO_TMP_URGENT_FILE}"
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fi
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fi
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return "${return_urgent_upgrade}"
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}
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# }}}
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is_maco_upgrade_require() { # {{{
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return_upgrade=""
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if [ "${LATEST_TIMESTAMP}" -gt "${CURRENT_TIMESTAMP}" ]; then
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debug_message "is_maco_upgrade_require − \
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Latest Maco upgrade is available (from version ${CURRENT_MACO_VERSION} to ${LATEST_MACO_VERSION})."
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message "Latest Maco upgrade is available (from version ${CURRENT_MACO_VERSION} to ${LATEST_MACO_VERSION})."
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return_upgrade="0"
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## If SIMULATE_MODE is not enable
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if [ ! "${SIMULATE_MODE}" -eq 0 ]; then
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### Also create a temp file that can be monitored
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### touch and append to keep existing content
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touch "${MACO_TMP_FILE}" && echo "Latest Maco upgrade is available (from version ${CURRENT_MACO_VERSION} to ${LATEST_MACO_VERSION})." >> "${MACO_TMP_FILE}"
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fi
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else
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debug_message "is_maco_upgrade_require − \
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Local Maco (${CURRENT_MACO_VERSION}) seems up to date (latest: ${LATEST_MACO_VERSION})."
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return_upgrade="1"
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## If SIMULATE_MODE is not enable
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if [ ! "${SIMULATE_MODE}" -eq 0 ]; then
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## Ensure temp file is not present
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rm -f -- "${MACO_TMP_FILE}"
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fi
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fi
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return "${return_upgrade}"
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}
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# }}}
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is_maco_uptodate() { # {{{
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return_uptodate=""
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if [ "${CURRENT_TIMESTAMP}" = "${LATEST_TIMESTAMP}" ]; then
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debug_message "is_maco_uptodate − \
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Local Maco (${CURRENT_MACO_VERSION}) is up to date (latest: ${LATEST_MACO_VERSION})."
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message "Local Maco (${CURRENT_MACO_VERSION}) is up to date (latest: ${LATEST_MACO_VERSION})."
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return_uptodate="0"
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## If SIMULATE_MODE is not enable
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if [ ! "${SIMULATE_MODE}" -eq 0 ]; then
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## Ensure to remove temp files
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rm -f -- "${MACO_TMP_FILE}" "${MACO_TMP_URGENT_FILE}"
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fi
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else
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debug_message "is_maco_uptodate − \
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Local Maco version (${CURRENT_MACO_VERSION}) is different from latest version (${LATEST_MACO_VERSION})."
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return_uptodate="1"
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fi
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return "${return_uptodate}"
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}
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# }}}
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prepare_host_for_upgrade() { # {{{
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sge_disable_host_queue_script="${PROGDIR}/sge.disable.host.queue.sh"
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## If SIMULATE_MODE is enable
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if [ "${SIMULATE_MODE}" -eq 0 ]; then
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return 0
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else
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debug_message "prepare_host_for_upgrade − \
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Disable SGE queue."
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sh "${sge_disable_host_queue_script}"
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return "${?}"
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fi
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}
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# }}}
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main() { # {{{
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## Test if SGE Master is reachable {{{
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### If sge_master_uri wasn't defined (environment variable,…) {{{
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if [ -z "${sge_master_uri}" ]; then
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## Use local host for sge_master_uri
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sge_master_uri="physix-master.ipr.univ-rennes1.fr"
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fi
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### }}}
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### If sge_master_port wasn't defined (environment variable,…) {{{
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if [ -z "${sge_master_port}" ]; then
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## Use local host for sge_master_port
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sge_master_port="6444"
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fi
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### }}}
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### If SGE Master is not reachable from this host {{{
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#### Exit
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is_sge_master_available \
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|| exit 0
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### }}}
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## }}}
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## Get all Maco's versions (date)
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readonly CURRENT_MACO_VERSION=$(< "${MACO_LOCAL_DIR}/maco-version.txt" awk -v FS=. '{ print $1 "-" $2 "-" $3 "T" $4 ":" $5 ":" $6 }' )
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readonly LATEST_MACO_VERSION=$(< "${MACO_INSTALL_DIR}/maco-version.txt" awk -v FS=. '{ print $1 "-" $2 "-" $3 "T" $4 ":" $5 ":" $6 }' )
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readonly URGENT_MACO_VERSION=$(< "${MACO_INSTALL_DIR}/urgent-maco-version.txt" awk -v FS=. '{ print $1 "-" $2 "-" $3 "T" $4 ":" $5 ":" $6 }' )
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## Convert version to timestamp
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readonly CURRENT_TIMESTAMP=$(date -d "${CURRENT_MACO_VERSION}" "+%s")
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readonly LATEST_TIMESTAMP=$(date -d "${LATEST_MACO_VERSION}" "+%s")
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readonly URGENT_TIMESTAMP=$(date -d "${URGENT_MACO_VERSION}" "+%s")
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## If a variable is empty
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## Exit with error code
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is_var_empty "${CURRENT_MACO_VERSION}" "${LATEST_MACO_VERSION}" "${URGENT_MACO_VERSION}" "${CURRENT_TIMESTAMP}" "${LATEST_TIMESTAMP}" "${URGENT_TIMESTAMP}" \
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&& exit 1
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is_maco_uptodate \
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&& exit 0
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## If URGENT_ONLY_MODE is set
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if [ "${URGENT_ONLY_MODE}" -eq "0" ]; then
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### Check only for urgent upgrade {{{
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is_maco_urgent_upgrade_require \
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&& prepare_host_for_upgrade \
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&& exit 0
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### }}}
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else
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### Check for latest upgrade {{{
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is_maco_upgrade_require \
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&& prepare_host_for_upgrade \
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&& exit 0
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### }}}
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### Check for urgent upgrade {{{
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is_maco_urgent_upgrade_require \
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&& prepare_host_for_upgrade \
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&& exit 0
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### }}}
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fi
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}
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# }}}
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# Manage arguments # {{{
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# This code can't be in a function due to arguments
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if [ ! "${NBARGS}" -eq "0" ]; then
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manage_arg="0"
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# Parse all options (start with a "-") one by one
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while printf -- '%s' "${1}" | grep -q -E -- "^-+"; do
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case "${1}" in
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-h|--help ) ## help
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usage
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## Exit after help informations
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exit 0
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;;
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-d|--debug ) ## debug
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DEBUG=0
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## Re-export new DEBUG value
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export DEBUG
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;;
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-q|--quiet ) ## Silent mode
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## Avoid to display any message on standard output
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OUTPUT_MESSAGE=1
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;;
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-s|--simulate ) ## Simulate mode
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## Only display messages
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SIMULATE_MODE=0
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;;
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-u|--urgent ) ## Urgent upgrade only
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## Check only for urgent upgrade
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URGENT_ONLY_MODE=0
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;;
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-- ) ## End of options list
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## End the while loop
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break
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;;
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* )
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printf '%b\n' "${RED}Invalid option: ${1}${RESET}"
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printf '%b\n' "---"
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usage
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exit 1
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;;
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esac
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debug_message "Arguments management − \
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${1} option managed."
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## Next arg
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shift
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manage_arg=$((manage_arg+1))
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done
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debug_message "Arguments management − \
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${manage_arg} argument(s) successfully managed."
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else
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debug_message "Arguments management − \
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No arguments/options to manage."
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fi
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# }}}
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main
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exit 0
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