deb package: adding environment file for systemctl

scripts/build_deb.sh

@@ -30,10 +30,17 @@ cat ${BASE_DIR}/${PACKAGE_TMPDIR}/DEBIAN/control
 # Create service file
 mkdir -p ${BASE_DIR}/${PACKAGE_TMPDIR}/etc/systemd/system
 cat ${BASE_DIR}/template.service \
+	| sed "s~{{ PACKAGE_NAME }}~${PACKAGE_NAME}~" \
 	| sed "s~{{ DESCRIPTION }}~${PACKAGE_DESCRIPTION}~" \
 	| sed "s~{{ PROGRAM }}~/${PACKAGE_PREFIX}/bin/${PACKAGE_NAME}~" \
 	> ${BASE_DIR}/${PACKAGE_TMPDIR}/etc/systemd/system/${PACKAGE_NAME}.service
 
+# Cerate config file
+mkdir -p ${BASE_DIR}/${PACKAGE_TMPDIR}/etc/${PACKAGE_NAME}
+cat ${BASE_DIR}/config \
+	| sed "s~{{ PACKAGE_NAME }}~${PACKAGE_NAME}~" \
+	> ${BASE_DIR}/${PACKAGE_TMPDIR}/etc/${PACKAGE_NAME}/env
+
 # Copy program
 mkdir -p ${BASE_DIR}/${PACKAGE_TMPDIR}/${PACKAGE_PREFIX}/bin
 cp ${BASE_DIR}/../${PACKAGE_PROGRAM} ${BASE_DIR}/${PACKAGE_TMPDIR}/${PACKAGE_PREFIX}/bin/${PACKAGE_NAME}

scripts/config

@@ -0,0 +1,7 @@
+# Default settings for {{ PACKAGE_NAME }}
+#
+# This is sourced by the systemd unit file.
+
+# Command line flags to pass to {{ PACKAGE_NAME }}
+# First is IP to listen to, second is port.
+#OPTS="127.0.0.1 1337"

scripts/template.service

@@ -3,11 +3,12 @@ Description={{ DESCRIPTION }}
 After=network.target
 
 [Service]
+EnvironmentFile=-/etc/{{ PACKAGE_NAME }}/env
 Type=simple
 # Another Type: forking
 #User=nanodano
 #WorkingDirectory=/home/nanodano
-ExecStart={{ PROGRAM }}
+ExecStart={{ PROGRAM }} $OPTS
 Restart=on-failure
 # Other restart options: always, on-abort, etc