Added three different startup modes

Dockerfile

@@ -94,6 +94,7 @@ ENV RUST_RESPAWN_ON_RESTART "0"
 ENV RUST_DISABLE_AUTO_UPDATE "0"
 ENV RUST_UPDATE_CHECKING "0"
 ENV RUST_UPDATE_BRANCH "public"
+ENV RUST_START_MODE "0"
 
 # Start the server
 ENTRYPOINT ["./start.sh"]

README.md

@@ -25,6 +25,7 @@ RUST_RCON_PASSWORD (DEFAULT: "docker" - RCON server password, please change this
 RUST_RESPAWN_ON_RESTART (DEFAULT: "0" - Controls whether to respawn resources on startup)
 RUST_DISABLE_AUTO_UPDATE (DEFAULT: "0" - Disables automatic updating on startup)
 RUST_BRANCH (DEFAULT: Not set - Sets the branch to use, eg. set to "-beta prerelease" for the prerelease branch)
+RUST_START_MODE (DEFAULT: 0 - Determines if the server should update and then start (0), only update (1) or only start (2))
 ```
 
 If you need help, have questions or bug submissions, feel free to contact me **@Dids** on Twitter, and on the *Rust Server Owners* Slack community.

start_rust.sh

@@ -39,12 +39,22 @@ else
 	sed -i "s/app_update 258550.*validate/app_update 258550 validate/g" /install.txt
 fi
 
+# Disable auto-update if start mode is 2
+if [ "$RUST_START_MODE" = "2" ]; then
+	RUST_DISABLE_AUTO_UPDATE=1
+fi
+
 # Check if we are auto-updating or not
 if [ "$RUST_DISABLE_AUTO_UPDATE" = "1" ]; then
 	if [ ! -f "/steamcmd/rust/RustDedicated" ]; then
-		# Install/update Rust from install.txt
-		echo "Installing/updating Rust.."
-		bash /steamcmd/steamcmd.sh +runscript /install.txt
+		# Disable auto-update if start mode is 2
+		if [ "$RUST_START_MODE" = "2" ]; then
+			echo "Skipping Rust update due to mode 2.."
+		else
+			# Install/update Rust from install.txt
+			echo "Installing/updating Rust.."
+			bash /steamcmd/steamcmd.sh +runscript /install.txt
+		fi
 	else
 		echo "Rust seems to be installed, skipping automatic update.."
 	fi
@@ -72,6 +82,12 @@ if [ -d "/oxide" ]; then
 	cp -fr /oxide/* /steamcmd/rust/
 fi
 
+# Start mode 1 means we only want to update
+if [ "$RUST_START_MODE" = "1" ]; then
+	echo "Exiting, start mode is 1.."
+	exit
+fi
+
 # Add RCON support if necessary
 RUST_STARTUP_COMMAND=$RUST_SERVER_STARTUP_ARGUMENTS
 if [ ! -z ${RUST_RCON_PORT+x} ]; then
@@ -119,12 +135,6 @@ if [ -f "/steamcmd/rust/seed_override" ]; then
 	fi
 fi
 
-# Use an intermediary file to pass env vars to cron
-if [ -f "/root/.profile" ]; then
-	rm -fr /root/.profile
-fi
-env |sed 's/^\(.*\)$/export \1/g' >/root/.profile
-
 # Start cron
 echo "Starting scheduled task manager.."
 node /scheduler_app/app.js &