Added check_linux_autofs + check_hpux_autofs plugins (w/ healing code)
This commit is contained in:
Patrick Van der Veken
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#!/usr/bin/env ksh
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#******************************************************************************
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# @(#) check_hpux_autofs.sh
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#******************************************************************************
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# @(#) Copyright (C) 2019 by KUDOS BVBA (info@kudos.be). All rights reserved.
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#
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# This program is a free software; you can redistribute it and/or modify
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# it under the same terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details
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#******************************************************************************
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#
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# DOCUMENTATION (MAIN)
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# -----------------------------------------------------------------------------
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# @(#) MAIN: check_hpux_autofs
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# DOES: see _show_usage()
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# EXPECTS: see _show_usage()
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# REQUIRES: data_comma2space(), data_is_numeric(), dump_logs(), init_hc(),
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# log_hc(), warn()
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#
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# @(#) HISTORY:
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# @(#) 2019-07-14: original version [Patrick Van der Veken]
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# -----------------------------------------------------------------------------
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# DO NOT CHANGE THIS FILE UNLESS YOU KNOW WHAT YOU ARE DOING!
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#******************************************************************************
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# -----------------------------------------------------------------------------
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function check_hpux_autofs
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{
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# ------------------------- CONFIGURATION starts here -------------------------
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typeset _CONFIG_FILE="${CONFIG_DIR}/$0.conf"
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typeset _VERSION="2019-07-14" # YYYY-MM-DD
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typeset _SUPPORTED_PLATFORMS="HP-UX" # uname -s match
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# shellcheck disable=SC2034
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typeset _HC_CAN_FIX=1 # plugin has fix/healing logic?
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typeset _CHRC_BIN="/usr/bin/ch_rc"
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# ------------------------- CONFIGURATION ends here ---------------------------
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# set defaults
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(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && set ${DEBUG_OPTS}
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init_hc "$0" "${_SUPPORTED_PLATFORMS}" "${_VERSION}"
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typeset _ARGS=$(data_comma2space "$*")
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typeset _ARG=""
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typeset _MSG=""
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typeset _STC=0
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typeset _CFG_HEALTHY=""
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typeset _LOG_HEALTHY=0
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typeset _CFG_FIX_AUTOFS=""
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typeset _FIX_AUTOFS=0
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typeset _IS_ACTIVE=0
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typeset _IS_ENABLED=0
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typeset _RETRY_START=3
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typeset _SLEEP_TIME=5
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typeset _RETRY_COUNT=1
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# handle arguments (originally comma-separated)
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for _ARG in ${_ARGS}
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do
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case "${_ARG}" in
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help)
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_show_usage $0 ${_VERSION} ${_CONFIG_FILE} && return 0
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;;
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esac
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done
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# handle configuration file
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[[ -n "${ARG_CONFIG_FILE}" ]] && _CONFIG_FILE="${ARG_CONFIG_FILE}"
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if [[ ! -r ${_CONFIG_FILE} ]]
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then
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warn "unable to read configuration file at ${_CONFIG_FILE}"
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return 1
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fi
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_CFG_FIX_AUTOFS=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'fix_autofs')
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case "${_CFG_FIX_AUTOFS}" in
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yes|YES|Yes)
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_FIX_AUTOFS=1
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;;
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*)
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_FIX_AUTOFS=0
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;;
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esac
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_CFG_RETRY_START=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'retry_start')
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data_is_numeric "${_CFG_RETRY_START}"
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# shellcheck disable=SC2181
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if (( $? > 0 ))
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then
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warn "value for parameter 'retry_count' in configuration file ${_CONFIG_FILE} is invalid"
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return 1
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else
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_RETRY_START=${_CFG_RETRY_START}
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fi
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_CFG_SLEEP_TIME=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'sleep_time')
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data_is_numeric "${_CFG_SLEEP_TIME}"
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# shellcheck disable=SC2181
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if (( $? > 0 ))
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then
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warn "value for parameter 'sleep_time' in configuration file ${_CONFIG_FILE} is invalid"
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return 1
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else
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_SLEEP_TIME=${_CFG_SLEEP_TIME}
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fi
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_CFG_HEALTHY=$(_CONFIG_FILE="${_CONFIG_FILE}" data_get_lvalue_from_config 'log_healthy')
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case "${_CFG_HEALTHY}" in
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yes|YES|Yes)
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_LOG_HEALTHY=1
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;;
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*)
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# do not override hc_arg
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(( _LOG_HEALTHY > 0 )) || _LOG_HEALTHY=0
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;;
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esac
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# log_healthy/--log-healthy
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(( ARG_LOG_HEALTHY > 0 )) && _LOG_HEALTHY=1
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if (( _LOG_HEALTHY > 0 ))
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then
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if (( ARG_LOG > 0 ))
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then
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log "logging/showing passed health checks"
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else
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log "showing passed health checks (but not logging)"
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fi
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else
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log "not logging/showing passed health checks"
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fi
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# --no-fix
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if (( ARG_NO_FIX > 0 ))
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then
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_FIX_AUTOFS=0
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log "fix/healing logic has been disabled"
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fi
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# check required tools
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if [[ ! -x ${_CHRC_BIN} ]]
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then
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warn "${_CHRC_BIN} is not installed here"
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return 1
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fi
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# check if autofs is enabled
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log "checking if autofs daemon is enabled"
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_IS_ENABLED=$(ch_rc -l -p AUTOFS /etc/rc.config.d/nfsconf 2>${HC_STDERR_LOG})
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if (( _IS_ENABLED > 0 ))
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then
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_MSG="autofs service is enabled"
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_STC=0
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if (( _LOG_HEALTHY > 0 || _STC > 0 ))
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then
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log_hc "$0" ${_STC} "${_MSG}"
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fi
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# check if autofs is running
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log "checking if autofs daemon is active"
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_is_autofs_active
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_IS_ACTIVE=$?
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if (( _IS_ACTIVE > 0 ))
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then
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_MSG="autofs daemon is running"
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_STC=0
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if (( _LOG_HEALTHY > 0 || _STC > 0 ))
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then
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log_hc "$0" ${_STC} "${_MSG}"
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fi
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else
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warn "autofs daemon is not running"
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# try restart if healing is desired
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if (( _FIX_AUTOFS > 0 ))
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then
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while (( _RETRY_COUNT <= _RETRY_START && _IS_ACTIVE == 0 ))
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do
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log "restarting autofs (attempt #${_RETRY_COUNT})"
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/sbin/init.d/autofs stop >>${HC_STDOUT_LOG} 2>>${HC_STDERR_LOG}
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# dump debug info
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(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && dump_logs
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/sbin/init.d/autofs start >>${HC_STDOUT_LOG} 2>>${HC_STDERR_LOG}
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# dump debug info
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(( ARG_DEBUG > 0 && ARG_DEBUG_LEVEL > 0 )) && dump_logs
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log "sleeping for ${_SLEEP_TIME} seconds"
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sleep ${_SLEEP_TIME}
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_RETRY_COUNT=$(( _RETRY_COUNT + 1 ))
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_is_autofs_active
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_IS_ACTIVE=$?
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done
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# check again if autofs is running
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_is_autofs_active
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_IS_ACTIVE=$?
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if (( _IS_ACTIVE > 0 ))
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then
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_MSG="autofs daemon is running"
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_STC=0
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if (( _LOG_HEALTHY > 0 || _STC > 0 ))
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then
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log_hc "$0" ${_STC} "${_MSG}"
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fi
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else
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_MSG="autofs daemon is not running"
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_STC=1
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if (( _LOG_HEALTHY > 0 || _STC > 0 ))
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then
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log_hc "$0" ${_STC} "${_MSG}"
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fi
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fi
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else
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_MSG="autofs daemon is not running"
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_STC=1
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if (( _LOG_HEALTHY > 0 || _STC > 0 ))
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then
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log_hc "$0" ${_STC} "${_MSG}"
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fi
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fi
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fi
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else
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_MSG="autofs service is disabled"
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_STC=1
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if (( _LOG_HEALTHY > 0 || _STC > 0 ))
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then
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log_hc "$0" ${_STC} "${_MSG}"
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fi
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fi
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return 0
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}
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# -----------------------------------------------------------------------------
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function _is_autofs_active
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{
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typeset _IS_ACTIVE=$(pgrep -u root automountd 2>>${HC_STDERR_LOG} | wc -l 2>/dev/null)
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return ${_IS_ACTIVE}
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}
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# -----------------------------------------------------------------------------
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function _show_usage
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{
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cat <<- EOT
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NAME : $1
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VERSION : $2
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CONFIG : $3 with parameters:
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log_healthy=<yes|no>
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fix_autofs=<yes|no>
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retry_start=<amount_of_start_retries>
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sleep_time=<seconds_to_sleep_during_restart_attempts>
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PURPOSE : Check/fix AutoFS service
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LOG HEALTHY : Supported
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CAN FIX? : Yes
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EOT
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return 0
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}
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#******************************************************************************
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# END of script
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#******************************************************************************
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