first usable version

Dockerfile

@@ -1,17 +1,30 @@
-FROM ghcr.io/gameservermanagers/steamcmd:latest
-#FROM cm2network/steamcmd:steam
+FROM docker.io/cm2network/steamcmd:latest
 
-ARG DATA_DIR="/stationeers/game_data"
-ARG SAVES_DIR
+ARG APP_USER="gamer"
+ARG APP_UID=568
+ARG APP_DIR="/home/steam/app"
 ARG APP_ID=600760
+ARG USER_DIR="/stationeers"
 
-# Re-use the entrypoint script of the steamcmd image and map it to a sensible command s it can be used internally
-#RUN ln -s /docker-entrypoint.sh /steamcmd
+# Setup local user
+USER root
+RUN useradd --uid "$APP_UID" --user-group --create-home --home "$APP_DIR" --shell /sbin/nologin "$APP_USER"
 
-#RUN steamcmd +force_install_dir "$DATA_DIR" +login anonymous +app_update 600760 +quit
+# Install application and configure access rights
+USER "$APP_USER"
+RUN /home/steam/steamcmd/steamcmd.sh +force_install_dir "$APP_DIR" +login anonymous +app_update 600760 validate +quit
+RUN chown -R "$APP_USER":"$APP_USER" "$APP_DIR"/*
 
+# Link the saves folder to the user mount
+RUN ln -sf "$USER_DIR" "$APP_DIR/saves"
 
+# Game port
 EXPOSE 27016/udp
+# Steam update port
+EXPOSE 27015/udp
 
-WORKDIR "$DATA_DIR"
-ENTRYPOINT ["echo"]
+WORKDIR "$USER_DIR"
+ENV PATH="$APP_DIR:$PATH"
+ENTRYPOINT ["rocketstation_DedicatedServer.x86_64"]
+# User should add their server commands as extra args to the docker run command
+# User should mount /stationeers for their writable data folder