Problem: (fix #246)missing service file for chain-maind (#247)

Solution: adding sample template and helper script

Makefile

@@ -141,6 +141,9 @@ clean:
 clean-docker-compose: localnet-stop
 	rm -rf $(BUILDDIR)/node* $(BUILDDIR)/gentxs
 
+create-systemd:
+	./networks/create-service.sh
+
 ###############################################################################
 ###                                Nix                                      ###
 ###############################################################################
@@ -180,6 +183,9 @@ else
 endif
 endif
 
+###############################################################################
+###                              Release                                    ###
+###############################################################################
 .PHONY: release-dry-run
 release-dry-run:
 	docker run \

networks/chain-maind.service.template

@@ -0,0 +1,17 @@
+# /etc/systemd/system/chain-maind.service
+[Unit]
+Description=Chain-maind
+ConditionPathExists=<CHAIN_MAIND_BINARY>
+After=network.target
+
+[Service]
+Type=simple
+User=<CHAIN_MAIND_USER>
+WorkingDirectory=<CHAIN_MAIND_BINARY_DIR>
+ExecStart=<CHAIN_MAIND_BINARY> start --home <CHAIN_MAIND_USER_HOME>/.chain-maind
+Restart=on-failure
+RestartSec=10
+LimitNOFILE=4096
+
+[Install]
+WantedBy=multi-user.target

networks/create-service.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+set -e
+
+BASEDIR=$(dirname "$0")
+
+CHAIN_MAIND_BINARY=$(which chain-maind || (echo -e "\033[31mPlease add chain-maind to PATH\033[0m" 1>&2 && exit 1))
+CHAIN_MAIND_USER=$USER
+CHAIN_MAIND_BINARY_DIR=$(dirname $(which chain-maind))
+CHAIN_MAIND_USER_HOME=$(eval echo "~$USER")
+
+sed "s#<CHAIN_MAIND_BINARY>#$CHAIN_MAIND_BINARY#g; s#<CHAIN_MAIND_USER>#$CHAIN_MAIND_USER#g; s#<CHAIN_MAIND_BINARY_DIR>#$CHAIN_MAIND_BINARY_DIR#g; s#<CHAIN_MAIND_USER_HOME>#$CHAIN_MAIND_USER_HOME#g" $BASEDIR/chain-maind.service.template > $BASEDIR/chain-maind.service
+
+echo -e "\033[32mGenerated $BASEDIR/chain-maind.service\033[0m"
+
+if [[ "$OSTYPE" == "linux-gnu"* ]]; then
+  sudo cp $BASEDIR/chain-maind.service /etc/systemd/system/chain-maind.service
+  sudo systemctl daemon-reload
+  sudo systemctl enable chain-maind.service
+  echo -e "\033[32mCreated /etc/systemd/system/chain-maind.service\033[0m"
+else
+  echo -e "\033[31mCan only create /etc/systemd/system/chain-maind.service for linux\033[0m" 1>&2
+  exit 1
+fi