system/netdata-openrc

   1 #!/sbin/runscript
   2
   3 # The path netdata has been installed.
   4 # Leave it empty if netdata is installed in /
   5 NETDATA_INSTALL_PATH=${NETDATA_INSTALL_PATH-}
   6
   7 # The user netdata is configured to run as.
   8 # If you edit its configuration file to set a different
   9 # user, set it here too, to have its files switch ownership
  10 NETDATA_OWNER=${NETDATA_OWNER-netdata:netdata}
  11
  12 # The URL to download netdata config.
  13 NETDATA_CONFIG_URL=${NETDATA_CONFIG_URL-http://localhost:19999/netdata.conf}
  14
  15 # The timeout in seconds to wait for netdata
  16 # to save its database on disk and exit.
  17 NETDATA_WAIT_EXIT_TIMEOUT=${NETDATA_WAIT_EXIT_TIMEOUT-15}
  18
  19 # When set to 1, if netdata does not exit in
  20 # NETDATA_WAIT_EXIT_TIMEOUT, we will force it
  21 # to exit.
  22 NETDATA_FORCE_EXIT=${NETDATA_FORCE_EXIT-0}
  23
  24
  25 extra_started_commands="getconf"
  26 pidfile="/var/run/netdata/netdata.pid"
  27 command="${NETDATA_INSTALL_PATH}/usr/sbin/netdata"
  28 command_background="yes"
  29
  30 depend() {
  31         use logger
  32         need net
  33
  34         # FIXME
  35         # We should depend on these only if they are enabled:
  36         # apache, squid, nginx, mysql, named, opensips, nut, hostapd, postfix, lm-sensors
  37 }
  38
  39 start() {
  40         local ret
  41
  42         if [ ! -d ${NETDATA_INSTALL_PATH}/var/cache/netdata ]
  43                 then
  44                 ebegin "Creating ${NETDATA_INSTALL_PATH}/var/cache/netdata"
  45                 mkdir -p ${NETDATA_INSTALL_PATH}/var/cache/netdata
  46                 chown ${NETDATA_OWNER} ${NETDATA_INSTALL_PATH}/var/cache/netdata
  47                 echo "${NETDATA_OWNER}" >${NETDATA_INSTALL_PATH}/var/cache/netdata/.last_owner
  48                 eend $?
  49         fi
  50
  51         if [ "$(cat ${NETDATA_INSTALL_PATH}/var/cache/netdata/.last_owner 2>/dev/null)" != "${NETDATA_OWNER}" ]
  52                 then
  53                 ebegin "Switching ownership of ${NETDATA_INSTALL_PATH}/var/cache/netdata"
  54                 chown -R ${NETDATA_OWNER} ${NETDATA_INSTALL_PATH}/var/cache/netdata
  55                 echo "${NETDATA_OWNER}" >${NETDATA_INSTALL_PATH}/var/cache/netdata/.last_owner
  56                 eend 0
  57         fi
  58
  59         ebegin "Starting netdata"
  60         start-stop-daemon --start --quiet --pidfile ${pidfile} --exec ${command} -- ${NETDATA_EXTRA_ARGS}
  61         ret=$?
  62         eend $ret
  63
  64         if [ $ret -eq 0 -a ! -f ${NETDATA_INSTALL_PATH}/etc/netdata/netdata.conf ]
  65                 then
  66                 ebegin "Downloading default configuration to ${NETDATA_INSTALL_PATH}/etc/netdata/netdata.conf"
  67                 sleep 2
  68                 curl -s -o ${NETDATA_INSTALL_PATH}/etc/netdata/netdata.conf.new "${NETDATA_CONFIG_URL}"
  69                 ret=$?
  70                 if [ $ret -eq 0 -a -s ${NETDATA_INSTALL_PATH}/etc/netdata/netdata.conf.new ]
  71                         then
  72                         mv ${NETDATA_INSTALL_PATH}/etc/netdata/netdata.conf.new ${NETDATA_INSTALL_PATH}/etc/netdata/netdata.conf
  73                 else
  74                         ret=1
  75                         rm ${NETDATA_INSTALL_PATH}/etc/netdata/netdata.conf.new 2>/dev/null
  76                 fi
  77                 eend $ret
  78         fi
  79 }
  80
  81 stop() {
  82         local result ret=0 count=0 sigkill=0
  83
  84         ebegin "Stopping netdata"
  85         start-stop-daemon --stop --quiet --pidfile ${pidfile}
  86         result=$?
  87         eend $result
  88
  89         ebegin "Waiting for netdata to save its database"
  90         while [ -f "${pidfile}" ]
  91         do
  92                 if [ $count -gt ${NETDATA_WAIT_EXIT_TIMEOUT} ]
  93                         then
  94                         sigkill=1
  95                         break
  96                 fi
  97
  98                 count=$[count + 1]
  99                 kill -0 $(cat ${pidfile}) 2>/dev/null
 100                 ret=$?
 101                 test $ret -eq 0 && sleep 1
 102         done
 103         eend $sigkill
 104
 105         if [ $sigkill -eq 1 -a -f "${pidfile}" ]
 106                 then
 107                 ebegin "Netdata is taking too long to exit, forcing it to quit"
 108                 kill -SIGKILL $(cat ${pidfile}) 2>/dev/null
 109                 eend $?
 110         fi
 111 }
 112
 113 getconf() {
 114         ebegin "Downloading configuration from netdata to /tmp/netdata.conf"
 115         curl -o /tmp/netdata.conf "${NETDATA_CONFIG_URL}"
 116         eend $?
 117 }