daemontools ocf script for pacemaker and heartbeat

daemontools

#!/bin/sh

#######################################################################
# TEST
#
# export OCF_ROOT=/usr/lib/ocf
# export OCF_RESKEY_service_dir=/service/dummy
# export OCF_RESKEY_svc_bin=/usr/bin/svc
# export OCF_RESKEY_svstat_bin=/usr/bin/svstat
#
# /usr/lib/ocf/resource.d/ngyuki/daemontools meta-data ; echo $?
# /usr/lib/ocf/resource.d/ngyuki/daemontools validate-all ; echo $?


#######################################################################
# Initialization

: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/resource.d/heartbeat}
. ${OCF_FUNCTIONS_DIR}/.ocf-shellfuncs

#######################################################################
# Default

OCF_RESKEY_svc_bin_default=`PATH=/usr/local/bin:$PATH which svc 2> /dev/null`
OCF_RESKEY_svstat_bin_default=`PATH=/usr/local/bin:$PATH which svstat 2> /dev/null`

: ${OCF_RESKEY_svc_bin=${OCF_RESKEY_svc_bin_default}}
: ${OCF_RESKEY_svstat_bin=${OCF_RESKEY_svstat_bin_default}}

#######################################################################

daemontools_meta_data()
{
    cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="daemontools">
<version>1.0</version>

<longdesc lang="en">daemontools resource agent</longdesc>

<shortdesc lang="en">daemontools resource agent</shortdesc>

<parameters>
  <parameter name="service_dir" unique="1" required="1">
    <longdesc lang="en">service directory</longdesc>
    <shortdesc lang="en">service directory</shortdesc>
    <content type="string" default="/service/xxx" />
  </parameter>
  <parameter name="svc_bin" unique="1" required="0">
    <longdesc lang="en">svc binary path</longdesc>
    <shortdesc lang="en">svc binary path</shortdesc>
    <content type="string" default="${OCF_RESKEY_svc_bin_default}" />
  </parameter>
  <parameter name="svstat_bin" unique="1" required="0">
    <longdesc lang="en">svstat binary path</longdesc>
    <shortdesc lang="en">svstat binary path</shortdesc>
    <content type="string" default="${OCF_RESKEY_svstat_bin}" />
  </parameter>
</parameters>

<actions>
  <action name="start"        timeout="5" />
  <action name="stop"         timeout="30" />
  <action name="monitor"      timeout="20" interval="20" depth="0" />
  <action name="meta-data"    timeout="5" />
  <action name="validate-all" timeout="20" />
</actions>
</resource-agent>
END
    return $OCF_SUCCESS
}

daemontools_usage()
{
    cat <<END
usage: $0 {start|stop|monitor|validate-all|meta-data}
END
    return $OCF_SUCCESS
}

daemontools_validate()
{
    if [ -z "$OCF_RESKEY_service_dir" ]; then
        exit $OCF_ERR_GENERIC
    fi

    if [ ! -d "$OCF_RESKEY_service_dir" ]; then
        ocf_log notice "$OCF_RESKEY_service_dir not directory"
        exit $OCF_ERR_ARGS
    fi

    if [ ! -x "$OCF_RESKEY_service_dir/run" ]; then
        ocf_log notice "$OCF_RESKEY_service_dir/run not executable"
        exit $OCF_ERR_ARGS
    fi

    if [ ! -e "$OCF_RESKEY_service_dir/down" ]; then
        ocf_log notice "$OCF_RESKEY_service_dir/down notfound"
        exit $OCF_ERR_ARGS
    fi

    if [ ! -x "$OCF_RESKEY_svc_bin_default" ]; then
        ocf_log notice "$OCF_RESKEY_svc_bin_default not executable"
        exit $OCF_ERR_INSTALLED
    fi

    if [ ! -x "$OCF_RESKEY_svstat_bin" ]; then
        ocf_log notice "$OCF_RESKEY_svstat_bin not executable"
        exit $OCF_ERR_INSTALLED
    fi

    return $OCF_SUCCESS
}

daemontools_start()
{
    daemontools_validate

    $OCF_RESKEY_svc_bin_default -u $OCF_RESKEY_service_dir

    ocf_log info "$OCF_RESKEY_service_dir started"

    return $OCF_SUCCESS
}

daemontools_stop()
{
    daemontools_validate

    $OCF_RESKEY_svc_bin_default -d $OCF_RESKEY_service_dir

    ocf_log info "$OCF_RESKEY_service_dir stoped"

    return $OCF_SUCCESS
}

daemontools_monitor()
{
    daemontools_validate

    $OCF_RESKEY_svstat_bin $OCF_RESKEY_service_dir | /bin/grep 'up (pid' >/dev/null 2>&1

    case "$?" in
    0)
        ocf_log debug "$OCF_RESKEY_service_dir monitor running"
        exit $OCF_SUCCESS
        ;;
    1)
        ocf_log info "$OCF_RESKEY_service_dir monitor stoped"
        exit $OCF_NOT_RUNNING
        ;;
    *)
        ocf_log notice "$OCF_RESKEY_service_dir monitor unknown"
        exit $OCF_ERR_GENERIC
        ;;
    esac
}

case $__OCF_ACTION in
meta-data)
    daemontools_meta_data
    ;;
usage|help)
    daemontools_usage
    ;;
start)
    daemontools_start
    ;;
stop)
    daemontools_stop
    ;;
monitor)
    daemontools_monitor
    ;;
validate-all)
    daemontools_validate
    ;;
*)
    daemontools_usage
    exit $OCF_ERR_UNIMPLEMENTED
    ;;
esac

exit $?