Chronos Upstart

chronos.upstart

description "chronos"

# Start just after the System-V jobs (rc) to ensure networking and zookeeper
# are started. This is as simple as possible to ensure compatibility with
# Ubuntu, Debian, CentOS, and RHEL distros. See:
# http://upstart.ubuntu.com/cookbook/#standard-idioms
start on stopped rc RUNLEVEL=[2345]
respawn

script
  export JAVA_LIBRARY_PATH="/usr/local/lib:/lib:/usr/lib"
  export LD_LIBRARY_PATH="${LD_LIBRARY_PATH:-/lib}"
  export LD_LIBRARY_PATH="$JAVA_LIBRARY_PATH:$LD_LIBRARY_PATH"

  CHRONOS_HOME=/usr/local/lib/chronos
  HEAP=384m

  #If we're on Amazon, let's use the public hostname so redirect works as expected.
  if public_hostname="$( curl -sSf --connect-timeout 1 http://169.254.169.254/latest/meta-data/public-hostname )"
  then
    HOSTNAME=$public_hostname
  else
    HOSTNAME=`hostname -f`
  fi

  #If /etc/mesos/zk exists, use it to configure zookeeper
  if [ -f /etc/mesos/zk ]
  then
    MASTER=`cat /etc/mesos/zk`
    ZK_HOSTS=`echo $MASTER | sed 's/zk:\/\///g;s/\/.*//'`
  fi

  # Override defaults with user-specificed defaults
  [ ! -f /etc/default/chronos ] || . /etc/default/chronos

  CHRONOS_JAR=${CHRONOS_JAR:-`echo $CHRONOS_HOME/chronos*.jar`}
  VM_OPTS=${VM_OPTS:--Xmx"$HEAP" -Xms"$HEAP"}

  # Redirect stdout to syslog
  mkfifo /tmp/chronos-log-stdout-fifo
  ( logger -p user.info -t chronos </tmp/chronos-log-stdout-fifo & )
  exec 1>/tmp/chronos-log-stdout-fifo
  rm /tmp/chronos-log-stdout-fifo

  # Redirect stderr to syslog
  mkfifo /tmp/chronos-log-stderr-fifo
  ( logger -p user.err  -t chronos </tmp/chronos-log-stderr-fifo & )
  exec 2>/tmp/chronos-log-stderr-fifo
  rm /tmp/chronos-log-stderr-fifo

  exec java \
    ${VM_OPTS:+$VM_OPTS} \
    ${LIB_PATH:+-Djava.library.path=$LIB_PATH} \
    ${CHRONOS_JAR:+-cp $CHRONOS_JAR org.apache.mesos.chronos.scheduler.Main} \
    ${ZK_HOSTS:+--zk_hosts "$ZK_HOSTS"} \
    ${MASTER:+--master $MASTER} \
    ${HOSTNAME:+--hostname $HOSTNAME} \
    ${HTTP_PORT:+--http_port $HTTP_PORT} \
    ${HTTPS_PORT:+--https_port $HTTPS_PORT} \
    ${OPTS:+$OPTS}
end script