install: create compose file with static values in $INSTALL_DIR

server/install/install.sh

@@ -77,7 +77,8 @@ fi
 if [ ! -f "$INSTALL_DIR/.env" ]; then
   cp -v "$TMPFOLDER/server/.env.default" "$INSTALL_DIR/.env"
 fi
-cp -v "$TMPFOLDER/server.docker-compose.yml" "$INSTALL_DIR/docker-compose.yml"
+echo "[INSTALL] Creating docker-compose.yml"
+envsubst < "$TMPFOLDER/server.docker-compose.yml" > "$INSTALL_DIR/docker-compose.yml"
 
 cd "$INSTALL_DIR"