Add automatic CS2 update detection and installation

.env.example

@@ -0,0 +1,9 @@
+TICKRATE=128
+MAXPLAYERS=24
+API_KEY=  # Only needed if workshop maps are needed
+STEAM_ACCOUNT=  # Only needed for online play
+RCON_PASSWORD=
+SERVER_PASSWORD=
+
+# Auto-update configuration
+UPDATE_CHECK_INTERVAL=300  # Check for CS2 updates every 300 seconds (5 minutes)

Dockerfile

@@ -1,47 +1,33 @@
-FROM registry.gitlab.steamos.cloud/steamrt/sniper/platform:latest-container-runtime-depot
-
-USER root
-
-RUN apt-get update --fix-missing \
-    && apt-get install -y --no-install-recommends \
-    dnsutils \
-    git-all \
-    lib32z1=1:1.2.11.dfsg-2+deb11u2 \
-    wget=1.21-1+deb11u1 \
-    && sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen \
-    && dpkg-reconfigure --frontend=noninteractive locales
-
-RUN addgroup steam \
-    && useradd -g steam steam \
-    && usermod -aG sudo steam
-
-ENV TICKRATE=""
-ENV MAXPLAYERS=""
-ENV API_KEY=""
-ENV STEAM_ACCOUNT=""
-
-RUN echo "steam ALL=(ALL) NOPASSWD: ALL" > /etc/sudoers.d/steam \
-    && chmod 0440 /etc/sudoers.d/steam
-
-ENV HOME="/home/steam/cs2/"
-
-RUN mkdir -p $HOME && \
-    chown -R steam:steam $HOME
-
-ENV SRC_DIR="/home/cs2-modded-server"
-
-WORKDIR $SRC_DIR
-
-COPY custom_files $SRC_DIR/custom_files
-
-COPY install_docker.sh \
-    run.sh \
-    start.sh \
-    stop.sh \
-    $SRC_DIR
-
-COPY game/csgo $SRC_DIR/game/csgo
-
-USER steam
-
-CMD [ "sudo", "-E", "bash", "/home/cs2-modded-server/install_docker.sh" ]
+FROM registry.gitlab.steamos.cloud/steamrt/sniper/platform:latest-container-runtime-depot
+
+USER root
+
+RUN apt-get update --fix-missing     && apt-get install -y --no-install-recommends     dnsutils     git-all     lib32z1=1:1.2.11.dfsg-2+deb11u2     wget=1.21-1+deb11u1     && sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen     && dpkg-reconfigure --frontend=noninteractive locales
+
+RUN addgroup steam     && useradd -g steam steam     && usermod -aG sudo steam
+
+ENV TICKRATE=""
+ENV MAXPLAYERS=""
+ENV API_KEY=""
+ENV STEAM_ACCOUNT=""
+ENV UPDATE_CHECK_INTERVAL="300"
+
+RUN echo "steam ALL=(ALL) NOPASSWD: ALL" > /etc/sudoers.d/steam     && chmod 0440 /etc/sudoers.d/steam
+
+ENV HOME="/home/steam/cs2/"
+
+RUN mkdir -p $HOME &&     chown -R steam:steam $HOME
+
+ENV SRC_DIR="/home/cs2-modded-server"
+
+WORKDIR $SRC_DIR
+
+COPY custom_files $SRC_DIR/custom_files
+
+COPY install_docker.sh     run.sh     start.sh     stop.sh     auto_update.sh     $SRC_DIR
+
+COPY game/csgo $SRC_DIR/game/csgo
+
+USER steam
+
+CMD [ "sudo", "-E", "bash", "/home/cs2-modded-server/install_docker.sh" ]

README.md

@@ -211,6 +211,7 @@ Key | Default value | What is it
 `EXEC` | `on_boot.cfg` | Config file to run when server boots. If switching gamemode, it's recommended to do a delay see the example `on_boot.cfg` file
 `DUCK_DOMAIN` | `` | (Linux only) [Duck DNS](https://www.duckdns.org/) domain if you want to utalise the free service to get a domain for your server instead of IP
 `DUCK_TOKEN` | `` | (Linux only) [Duck DNS](https://www.duckdns.org/) access token to update domain when server boots
+`UPDATE_CHECK_INTERVAL` | `300` | Time in seconds between update checks for CS2. The auto-updater will check Steam for new CS2 builds at this interval and automatically update the server (default: 300 = 5 minutes)
 
 ## Playing workshop maps/collections
 

auto_update.sh

@@ -0,0 +1,126 @@
+#!/usr/bin/env bash
+
+# CS2 Auto-Update Script
+# Checks for CS2 updates on Steam and automatically updates the server
+
+# Configuration
+CHECK_INTERVAL=${UPDATE_CHECK_INTERVAL:-300}  # Check every 5 minutes by default
+user="steam"
+APPID=730  # CS2 AppID
+INSTALL_DIR="/home/${user}/cs2"
+VERSION_FILE="${INSTALL_DIR}/.cs2_version"
+LOGFILE="/tmp/cs2_autoupdate.log"
+
+log() {
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')] $1" | tee -a "${LOGFILE}"
+}
+
+get_current_buildid() {
+    if [ -f "${VERSION_FILE}" ]; then
+        cat "${VERSION_FILE}"
+    else
+        echo "0"
+    fi
+}
+
+get_latest_buildid() {
+    # Use SteamCMD to check the latest available build ID
+    local output=$(/steamcmd/steamcmd.sh         +login anonymous         +app_info_update 1         +app_info_print ${APPID}         +quit 2>&1)
+
+    # Extract buildid from the output
+    local buildid=$(echo "$output" | grep -A 1000 '"730"' | grep -m 1 '"buildid"' | grep -o '[0-9]*')
+
+    if [ -z "$buildid" ]; then
+        log "ERROR: Could not retrieve buildid from Steam"
+        return 1
+    fi
+
+    echo "$buildid"
+}
+
+update_server() {
+    log "Update detected! Starting CS2 server update..."
+
+    # Run SteamCMD to update the server
+    sudo -u $user /steamcmd/steamcmd.sh         +api_logging 1 1         +@sSteamCmdForcePlatformType linux         +@sSteamCmdForcePlatformBitness 64         +force_install_dir ${INSTALL_DIR}         +login anonymous         +app_update ${APPID} validate         +quit
+
+    if [ $? -eq 0 ]; then
+        log "CS2 update completed successfully"
+        return 0
+    else
+        log "ERROR: CS2 update failed"
+        return 1
+    fi
+}
+
+restart_server() {
+    log "Restarting CS2 server..."
+
+    # Find and gracefully stop the CS2 server process
+    local cs2_pid=$(pgrep -f "cs2.*-dedicated")
+
+    if [ -n "$cs2_pid" ]; then
+        log "Stopping CS2 server (PID: $cs2_pid)"
+        kill -TERM $cs2_pid
+
+        # Wait up to 30 seconds for graceful shutdown
+        for i in {1..30}; do
+            if ! kill -0 $cs2_pid 2>/dev/null; then
+                log "CS2 server stopped gracefully"
+                break
+            fi
+            sleep 1
+        done
+
+        # Force kill if still running
+        if kill -0 $cs2_pid 2>/dev/null; then
+            log "Force stopping CS2 server"
+            kill -KILL $cs2_pid
+        fi
+    fi
+
+    # The container should automatically restart the server via the CMD
+    log "Server will restart automatically via container CMD"
+}
+
+main() {
+    log "CS2 Auto-Update service started (checking every ${CHECK_INTERVAL} seconds)"
+
+    # Store initial version
+    local latest_build=$(get_latest_buildid)
+    if [ -n "$latest_build" ]; then
+        echo "$latest_build" > "${VERSION_FILE}"
+        log "Initial build ID: $latest_build"
+    fi
+
+    while true; do
+        sleep ${CHECK_INTERVAL}
+
+        local current_build=$(get_current_buildid)
+        local latest_build=$(get_latest_buildid)
+
+        if [ -z "$latest_build" ]; then
+            log "WARNING: Could not check for updates, will retry in ${CHECK_INTERVAL} seconds"
+            continue
+        fi
+
+        log "Current build: $current_build | Latest build: $latest_build"
+
+        if [ "$current_build" != "$latest_build" ]; then
+            log "New CS2 update available! (Current: $current_build -> Latest: $latest_build)"
+
+            if update_server; then
+                echo "$latest_build" > "${VERSION_FILE}"
+                restart_server
+                log "Update process completed"
+            else
+                log "Update failed, will retry on next check"
+            fi
+        else
+            log "No update available"
+        fi
+    done
+}
+
+# Run main function
+main

docker-compose.yml

@@ -4,6 +4,7 @@ services:
     container_name: cs2-modded-server
     env_file:
       - .env
+    restart: unless-stopped
     volumes:
       - cs2-volume:/home/steam/
       - type: bind
@@ -22,4 +23,4 @@ services:
     # command: tail -F anything
 
 volumes:
-  cs2-volume:
+  cs2-volume:

install_docker.sh

@@ -176,6 +176,12 @@ else
 fi
 
 echo "Starting server on $PUBLIC_IP:$PORT"
+n# Start auto-update service in background
+echo "Starting CS2 auto-update service..."
+sudo bash /home/cs2-modded-server/auto_update.sh > /tmp/cs2_autoupdate.log 2>&1 &
+AUTO_UPDATE_PID=$!
+echo "Auto-update service started with PID: $AUTO_UPDATE_PID"
+echo ""
 # https://developer.valvesoftware.com/wiki/Counter-Strike_2/Dedicated_Servers#Command-Line_Parameters
 echo ./game/bin/linuxsteamrt64/cs2 \
     -dedicated \