etcd-init

#!/bin/bash
### BEGIN INIT INFO
# Provides:          etcd
# Required-Start:    $local_fs $remote_fs $network $syslog
# Required-Stop:     $local_fs $remote_fs $network $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Init for etcd
# Description:       etcd 2.0 distributed key-value store
### END INIT INFO
set -ue
set -o nounset

NAME="etcd"
DESC="etcd"

. /lib/lsb/init-functions

PID=/var/run/etcd.pid

. /etc/default/etcd

if [ -z "${etcd_log_file:-}" ]
then
    etcd_log_file="/var/log/etcd.log"
fi

if [ -z "${etcd_cwd:-}" ]
then
    etcd_cwd="/var/etcd"
fi

LOG="${etcd_log_file}"
CWD="${etcd_cwd}"
OPTS=""

if [ ! -z "${etcd_proxy:-}" ]
then
    OPTS="${OPTS} --proxy=\"${etcd_proxy}\""
fi

if [ ! -z "${etcd_name:-}" ]
then
    OPTS="${OPTS} --name=\"${etcd_name}\""
fi

if [ ! -z "${etcd_advertise_client_urls:-}" ]
then
    OPTS="${OPTS} --advertise-client-urls=\"${etcd_advertise_client_urls}\""
fi

if [ ! -z "${etcd_listen_client_urls:-}" ]
then
    OPTS="${OPTS} --listen-client-urls=\"${etcd_listen_client_urls}\""
fi

if [ ! -z "${etcd_listen_peer_urls:-}" ]
then
    OPTS="${OPTS} --listen-peer-urls=\"${etcd_listen_peer_urls}\""
fi

if [ ! -z "${etcd_initial_advertise_peer_urls:-}" ]
then
    OPTS="${OPTS} --initial-advertise-peer-urls=\"${etcd_initial_advertise_peer_urls}\""
fi

if [ ! -z "${etcd_initial_cluster_token:-}" ]
then
    OPTS="${OPTS} --initial-cluster-token=\"${etcd_initial_cluster_token}\""
fi

if [ ! -z "${etcd_initial_cluster:-}" ]
then
    OPTS="${OPTS} --initial-cluster=\"${etcd_initial_cluster}\""
fi

if [ ! -z "${etcd_initial_cluster_state:-}" ]
then
    OPTS="${OPTS} --initial-cluster-state=\"${etcd_initial_cluster_state}\""
fi

start() {
  start-stop-daemon --start --background --quiet \
                    --pidfile "$PID" --make-pidfile \
                    --chdir "$CWD" \
                    --startas /bin/bash -- -c "exec /usr/local/bin/etcd $OPTS >> $LOG 2>&1"
}

stop() {
  start-stop-daemon --stop --quiet --pidfile "$PID"
}

case "${1-}" in
  start)
    echo -n "Starting $DESC: "
    start
    echo "$NAME."
    ;;
  stop)
    echo -n "Stopping $DESC: "
    stop
    echo "$NAME."
    ;;
  restart)
    echo -n "Restarting $DESC: "
    stop
    sleep 1
    start
    echo "$NAME."
    ;;
  status)
    status_of_proc -p "$PID" "$NAME" "$NAME"
    ;;
  *)
    echo "Usage: $0 {start|stop|restart|status}" >&2
    exit 1
    ;;
esac