First working prototype. It "works", but it still segs, which is the problem I was hoping to fix. Bummer.

Add the dayzserver from upstream, but a modified version that doesn't do all the tmux stuff.

Dockerfile

@@ -22,20 +22,46 @@ RUN apt-get update && apt-get -y upgrade && apt-get -y install \
 	curl \
 	lib32gcc-s1 \
 	lib32stdc++6 \
+    locales \
 	psmisc \
 	wget \
 	rename
 
+# Set the locale
+RUN sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen && \
+    locale-gen
+ENV LANG en_US.UTF-8
+ENV LANGUAGE en_US:en
+ENV LC_ALL en_US.UTF-8
+
 # Setup a non-privileged user
-RUN groupadd -g 1000 user && \
+RUN groupadd user && \
-    useradd -l -u ${USER_ID} -m -g user user
+    useradd -l -m -g user user
 
-RUN chown user:user /home/user -R
+# Add the server script.
+# From https://steamcommunity.com/sharedfiles/filedetails/?id=1517338673
+ADD dayzserver /home/user
 
-USER ${USER_ID}
+# Add the serverDZ.cfg from the same URL as above
+ADD serverDZ.cfg /home/user
 
-WORKDIR /work
+# Add our wrapper too
+ADD server.sh /home/user
 
-COPY . /home/user
+# Make sure the volumes can be written to by the local user
+RUN cd /home/user && \
+    mkdir -p serverfiles serverprofile Steam steamcmd
 
-CMD ["server.sh"]
+# Create the files the dayzserver script expects so we can take charge of populating them
+RUN cd /home/user && touch .steamlogin
+
+RUN cd /home/user && chown user:user /home/user -R
+
+# Use our non-privileged user
+USER user
+
+# The dayzserver script expects a home directory to itself.
+WORKDIR /home/user
+
+# Run the server.
+CMD ["./server.sh"]

README.md

@@ -1,3 +1,19 @@
-# dayzdockerserver
+# DayZDockerServer
 
-A Linux DayZ server in a Docker container
+A Linux DayZ server in a Docker container.
+
+Edit docker-compose.yml and set the variables:
+
+```
+- STEAMLOGIN=yourSteamLogin
+- SERVERNAME="DayZ on Linux for Linux"
+```
+The steam login is necessary as the server files require ownership
+of the game.
+
+Build the container, run it, tail the logs:
+```
+docker-compose build
+docker-compose up -d
+docker-compose logs -f dayzserver
+```

dayzserver

@@ -35,43 +35,14 @@ fn_checkroot_dayz(){
 	fi
 }
 
-fn_checktmux(){
-	if [ -n "${TMUX}" ]; then
-		printf "[ ${red}FAIL${default} ] The Script creates a tmux session when starting the server.\n"
-		printf "\tIt is not possible to run a tmux session inside another tmux session\n"
-		exit 1
-	fi
-}
-
-fn_checkscreen(){
-	if [ -n "${STY}" ]; then
-		printf "[ ${red}FAIL${default} ] The Script creates a tmux session when starting the server.\n"
-		printf "\tIt is not possible to run a tmux session inside screen session\n"
-		exit 1
-	fi
-}
-
 fn_loadconfig_dayz(){
 	# default config
 	if [ ! -f "${HOME}/.default.cfg" ]; then
 		wget -P ${HOME}/ -qN https://raw.githubusercontent.com/thelastnoc/dayz-sa_linuxserver/master/script/.default.cfg
 	fi
 	source ${HOME}/.default.cfg
-	# script config
+	cp serverDZ.cfg "${HOME}/serverfiles/serverDZ.cfg"
-	if [ ! -f "${HOME}/.dayzserver.cfg" ] || [ "$(grep dayzparameter ${HOME}/.dayzserver.cfg)" == "" ]; then
+	sed -i "${HOME}/serverfiles/serverDZ.cfg" -e "s/EXAMPLE NAME/${SERVERNAME}/"
-                cp ${HOME}/.default.cfg ${HOME}/.dayzserver.cfg
-        fi
-	source ${HOME}/.dayzserver.cfg
-	# hostname/servername
-	if [ ! -f "${HOME}/serverfiles/serverDZ.cfg" ]; then
-		wget -P ${HOME}/serverfiles/ -q https://raw.githubusercontent.com/thelastnoc/dayz-sa_linuxserver/master/script/serverDZ.cfg
-	fi
-	defaultservername=$(grep -rwi ${HOME}/serverfiles/serverDZ.cfg -e 'EXAMPLE NAME')
-	if [ "${defaultservername}" != "" ]; then
-		printf "[ ${magenta}SERVER${default} ] Servername is set on default! 'EXAMPLE NAME'\n\n"
-		read -p "Enter a new Servername: " servername
-		sed -i "/hostname/ s/EXAMPLE NAME/${servername}/" "${HOME}/serverfiles/serverDZ.cfg"
-	fi
 	# battleye config and rconpassword setup
 	if [ ! -f "${HOME}/serverfiles/battleye/beserver_x64.cfg" ]; then
 		wget -P ${HOME}/serverfiles/battleye/ -qN https://raw.githubusercontent.com/thelastnoc/dayz-sa_linuxserver/master/script/beserver_x64.cfg
@@ -100,21 +71,22 @@ fn_status_dayz(){
 }
 
 fn_start_dayz(){
-	fn_status_dayz
+#	fn_status_dayz
-	if [ "${dayzstatus}" == "1" ]; then
+#	if [ "${dayzstatus}" == "1" ]; then
-		printf "[ ${yellow}DayZ${default} ] Server already running.\n"
+#		printf "[ ${yellow}DayZ${default} ] Server already running.\n"
-		exit 1
+#		exit 1
-	else
+#	else
 		printf "[ ${green}DayZ${default} ] Starting server...\n"
 		sleep 0.5
 		fn_loadconfig_dayz
 		sleep 0.5
 		cd ${HOME}/serverfiles
-		tmux new-session -d -x 23 -y 80 -s $(whoami)-tmux ./DayZServer $dayzparameter "$workshop"
+		exec ./DayZServer $dayzparameter "$workshop"
-		sleep 1
+#		tmux new-session -d -x 23 -y 80 -s $(whoami)-tmux ./DayZServer $dayzparameter "$workshop"
-		cd ${HOME}
+#		sleep 1
-		date > ${HOME}/.dayzlockfile
+#		cd ${HOME}
-	fi
+#		date > ${HOME}/.dayzlockfile
+#	fi
 }
 
 fn_stop_dayz(){
@@ -451,8 +423,6 @@ fn_opt_usage(){
 
 # start functions
 fn_checkroot_dayz
-fn_checktmux
-fn_checkscreen
 
 getopt=$1
 if [ ! -f "${HOME}/steamcmd/steamcmd.sh" ] || [ ! -f "${HOME}/serverfiles/DayZServer" ] && [ "${getopt}" != "cfg" ]; then

docker-compose.yml

@@ -0,0 +1,24 @@
+version: "3.9"
+
+volumes:
+  steam:
+  steamcmd:
+  serverfiles:
+  serverprofile:
+
+services:
+
+  dayzserver:
+    build: .
+    ports:
+      - "2302:2302/udp"
+      - "27016:27016/udp"
+    volumes:
+      - steam:/home/user/Steam
+      - steamcmd:/home/user/steamcmd
+      - serverfiles:/home/user/serverfiles
+      - serverprofile:/home/user/serverprofile
+    environment:
+      - STEAMLOGIN=anonymous
+#     Escape any forwardslashes: SERVERNAME="My thing \/ My other thing"
+      - SERVERNAME=DayZ on Linux for Linux

server.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+# Make sure we don't start collecting core files
+ulimit -c 0
+
+# This script will take environment variables and put them into the files the script expects.
+if ! grep STEAMLOGIN .steamlogin
+then
+  echo "Setting the STEAMLOGIN..."
+  echo "steamlogin=${STEAMLOGIN}" > .steamlogin
+fi
+
+# Do something with SERVERNAME="DayZ on Linux for Linux"
+if ! grep SERVERNAME serverDZ.cfg
+then
+  echo "Setting the SERVERNAME..."
+  sed -i serverDZ.cfg -e "s/SERVERNAME/${SERVERNAME}/"
+fi
+
+./dayzserver start || find /home/user -name error.log -exec cat {} \;

serverDZ.cfg

@@ -0,0 +1,82 @@
+hostname = "EXAMPLE NAME";  // Server name
+password = "";              // Password to connect to the server
+passwordAdmin = "";         // Password to become a server admin
+
+maxPlayers = 60;            // Maximum amount of players
+
+verifySignatures = 2;       // Verifies .pbos against .bisign files. (only 2 is supported)
+
+forceSameBuild = 1;         // When enabled, the server will allow the connection only to clients with same the .exe revision as the server (value 0-1)
+
+disableVoN = 0;             // Enable/disable voice over network (value 0-1)
+vonCodecQuality = 20;        // Voice over network codec quality, the higher the better (values 0-30)
+
+disable3rdPerson=0;         // Toggles the 3rd person view for players (value 0-1)
+disableCrosshair=0;         // Toggles the cross-hair (value 0-1)
+
+serverTime="SystemTime";    // Initial in-game time of the server. "SystemTime" means the local time of the machine. Another possibility is to set the time to some value in "YYYY/MM/DD/HH/MM" format, f.e. "2015/4/8/17/23" .
+serverTimeAcceleration=12;  // Accelerated Time (value 0-24)// This is a time multiplier for in-game time. In this case, the time would move 24 times faster than normal, so an entire day would pass in one hour.
+serverTimePersistent=0;     // Persistent Time (value 0-1)// The actual server time is saved to storage, so when active, the next server start will use the saved time value.
+
+guaranteedUpdates=1;        // Communication protocol used with game server (use only number 1)
+
+loginQueueConcurrentPlayers=5;  // The number of players concurrently processed during the login process. Should prevent massive performance drop during connection when a lot of people are connecting at the same time.
+loginQueueMaxPlayers=500;       // The maximum number of players that can wait in login queue
+
+instanceId = 1;             // DayZ server instance id, to identify the number of instances per box and their storage folders with persistence files
+lootHistory = 1;            // How many persistence history files should be kept by instance, number is looped over during save
+storeHouseStateDisabled = false;// Disable houses/doors persistence (value true/false), usable in case of problems with persistence
+storageAutoFix = 1;         // Checks if the persistence files are corrupted and replaces corrupted ones with empty ones (value 0-1)
+
+respawnTime = 5;            // Sets the respawn delay (in seconds) before the player is able to get a new character on the server, when the previous one is dead
+
+motd[] = {"line1","line2"}; // Message of the day displayed in the in-game chat
+motdInterval = 1;           // Time interval (in seconds) between each message
+
+maxPing= 200;               // Max ping value until server kick the user (value in milliseconds)
+
+timeStampFormat = "Short";  // Format for timestamps in the .rpt file (value Full/Short)
+logAverageFps = 1;          // Logs the average server FPS (value in seconds), needs to have -dologs launch parameter active
+logMemory = 1;              // Logs the server memory usage (value in seconds), needs to have the -dologs launch parameter active
+logPlayers = 1;             // Logs the count of currently connected players (value in seconds), needs to have the -dologs launch parameter active
+logFile = "server_console.log";// Saves the server console log to a file in the folder with the other server logs
+
+
+adminLogPlayerHitsOnly = 0;		// 1 - log player hits only / 0 - log all hits ( animals/infected )
+adminLogPlacement = 0;			// 1 - log placement action ( traps, tents )
+adminLogBuildActions = 0;		// 1 - log basebuilding actions ( build, dismantle, destroy )
+adminLogPlayerList = 0;			// 1 - log periodic player list with position every 5 minutes
+
+enableDebugMonitor = 1;			// shows info about the character using a debug window in a corner of the screen (value 0-1)
+
+
+steamQueryPort = 2305;      // defines Steam query port, should fix the issue with server not being visible in client server browser
+
+allowFilePatching = 1;			// if set to 1 it will enable connection of clients with "-filePatching" launch parameter enabled
+
+simulatedPlayersBatch = 20;		// Set limit of how much players can be simulated per frame (for server performance gain)
+
+multithreadedReplication = 1;	// enables multi-threaded processing of server's replication system
+								// number of worker threads is derived by settings of jobsystem in dayzSettings.xml by "maxcores" and "reservedcores" parameters (value 0-1)
+
+networkRangeClose = 20;			// network bubble distance for spawn of close objects with items in them (f.i. backpacks), set in meters, default value if not set is 20
+networkRangeNear = 150;			// network bubble distance for spawn (despawn +10%) of near inventory items objects, set in meters, default value if not set is 150
+networkRangeFar = 1000;			// network bubble distance for spawn (despawn +10%) of far objects (other than inventory items), set in meters, default value if not set is 1000
+networkRangeDistantEffect = 4000; // network bubble distance for spawn of effects (currently only sound effects), set in meters, default value if not set is 4000
+
+defaultVisibility=1375;			// highest terrain render distance on server (if higher than "viewDistance=" in DayZ client profile, clientside parameter applies)
+defaultObjectViewDistance=1375;	// highest object render distance on server (if higher than "preferredObjectViewDistance=" in DayZ client profile, clientside parameter applies)
+
+lightingConfig = 0;				// 0 for brighter night, 1 for darker night
+disablePersonalLight = 1;		// disables personal light for all clients connected to server
+
+disableBaseDamage = 0;			// set to 1 to disable damage/destruction of fence and watchtower
+disableContainerDamage = 0;		// set to 1 to disable damage/destruction of tents, barrels, wooden crate and seachest
+
+class Missions
+{
+    class DayZ
+    {
+        template="dayzOffline.chernarusplus"; // Mission to load on server startup. <MissionName>.<TerrainName>
+    };
+};