Add init script for seed node in GNU/Linux server

doc/bitsquare-sn.init.sh

@@ -0,0 +1,48 @@
+#!/bin/sh
+# kFreeBSD do not accept scripts as interpreters, using #!/bin/sh and sourcing.
+if [ true != "$INIT_D_SCRIPT_SOURCED" ] ; then
+    set "$0" "$@"; INIT_D_SCRIPT_SOURCED=true . /lib/init/init-d-script
+fi
+### BEGIN INIT INFO
+# Provides:          bitsquare-sn
+# Required-Start:    $local_fs $remote_fs $named $network $time
+# Required-Stop:     $local_fs $remote_fs $named $network $time
+# Default-Start:     2 3 4 5
+# Default-Stop:      0 1 6
+# Short-Description: Bitsquare seed node
+# Description:       This script manages the execution of
+#                    a Bitsquare seed node process using
+#                    its own Tor node to provide a hidden service.
+### END INIT INFO
+
+# Author: Ivan Vilata-i-Balaguer <ivan@selidor.net>
+
+
+## BEGIN CONFIGURATION
+# HOST:PORT address of seed node.  Change this for each instance.
+SN_ADDRESS=1a2b3c4d5e6f7g8h.onion:8000
+
+# Bitcoin network: 0=mainnet, 1=testnet, 2=regtest.
+SN_NETWORK_ID=0
+# Maximum number of connecitions to allow.
+SN_MAX_CONNECTIONS=50
+
+# Location of the seed node jar file.  Use to select a particular version.
+SN_JAR=~bsqsn/SeedNode-0.4.2.jar
+# User to run the seed node as.
+SN_USER=bsqsn
+## END CONFIGURATION
+
+
+# Using a name different than the daemon's base name
+# causes problems when stopping the process.
+#NAME="bitsquare-sn"
+DESC="Bitsquare seed node $SN_ADDRESS"
+START_ARGS="--chuid $SN_USER --background --make-pidfile"
+PIDFILE="/var/run/bitsquare-sn/$SN_ADDRESS.pid"
+DAEMON=/usr/bin/java
+DAEMON_ARGS="-jar $SN_JAR $SN_ADDRESS $SN_NETWORK_ID $SN_MAX_CONNECTIONS"
+
+do_start_prepare() {
+    mkdir -p "$(dirname "$PIDFILE")"
+}