Create a dedicated means by which we can run interactive prompts to effect tasks such as (all WIP):

Logging into to Steam, accounting for Steam Guard. These credentials persist throughout the lifetime of the docker volume storing the data.
  Adding/removing/managing workshop items. The goal is to also manage the "=mod=" parameter.
  Listing the auto-generated RCON password.
  Backing up.
Further refine the original dayzserver script. In docker, a lot of the other stuff wasn't necessary so a lot is just being removed.
Install steamcmd into the container in Dockerfile and adjust paths.
Vastly updated docs!

Dockerfile

@@ -33,6 +33,13 @@ ENV LANG en_US.UTF-8
 ENV LANGUAGE en_US:en
 ENV LC_ALL en_US.UTF-8
 
+# Add steamcmd to the image
+RUN  mkdir -p /steamcmd && \
+		curl -sqL "https://steamcdn-a.akamaihd.net/client/installer/steamcmd_linux.tar.gz" | tar zxf - -C steamcmd
+
+# Make our docker scripts easier to run
+ENV PATH /files:/steamcmd:${PATH}
+
 # Setup a non-privileged user
 RUN groupadd user && \
     useradd -l -m -g user user
@@ -47,4 +54,4 @@ USER user
 WORKDIR /home/user
 
 # Run the server.
-CMD ["/files/dayzserver", "start"]
+CMD ["dayzserver", "start"]

README.md

@@ -1,25 +1,33 @@
 # DayZDockerServer
 
-A Linux DayZ server in a Docker container. Uses a modified version of https://github.com/thelastnoc/dayz-sa_linuxserver
+A Linux DayZ server in a Docker container.
-for all the Steam management. More info here https://steamcommunity.com/sharedfiles/filedetails/?id=1517338673.
+The main script's functionality is derived from [this project](https://github.com/thelastnoc/dayz-sa_linuxserver).
-### Caveat Emptor
+That functionality is described [here](https://steamcommunity.com/sharedfiles/filedetails/?id=1517338673). The goal is
-Uses a docker volume for the unprivileged user's home directory, which stores the DayZ server files plus SteamCMD, a 
+to reproduce all that functionality and add even more while keeping it all in Docker. 
-utility used to manage Steam content from the command line. This volume can get quite large. Out of the box, as of this
-writing, DayZ Experimental is at 1.17 and the volume comes to about 1.8G of disk space once all the files are downloaded.
 
-### Setup, Build. and Configure
+## Caveat Emptor
 
-Edit `files/serverDZ.cfg` and set the server name (You don't really have to, but you should):
+As of DayZ release 1.15, a [Linux DayZ server](https://steamdb.info/app/1042420/) was made available in Dayz
+Experimental. This has not been officially released, so this will only run a DayZ Experimental server at the
+moment. Only the [DayZ Experimental client](https://dayz.fandom.com/wiki/Experimental) will be able to connect to it.
+
+This process will create a docker volume for the unprivileged user's home directory, which stores the DayZ server files.
+This volume can get quite large. It will require at least 2G of disk space for the default install. Much more with mods.
+
+## Setup, Build. and Configure
+
+Edit `files/serverDZ.cfg` and set the values of any variables there. 
+See the [documentation](https://forums.dayz.com/topic/239635-dayz-server-files-documentation/):
 
 ```
 hostname = "Something other than Server Name";   // Server name
 ```
-Optionally edit `files/beserver_x64.cfg` and set the rcon password:
+Optionally edit `files/beserver_x64.cfg` and set the RCON password:
 ```
 RConPassword h4CKm3
 ```
-If the above step is not performed, a random rcon password will be generated and output on the first run. It can also be
+If the above step is not performed, a random RCON password will be generated and output on the first run. It can also be
-obtained later and reset.
+obtained and reset. (See [Management](#manage))
 
 Add your Steam credentials. This step is necessary if you want to add mods. The vanilla server is installable by setting
 the steamlogin to `anonymous`. Edit `files/steamlogin` and set the steam username.
@@ -35,23 +43,32 @@ docker-compose build
 ```
 Now login:
 ```
-docker-compose run --rm config
+docker-compose run --rm run manage login
 ```
-### Run
+## Run
 Launch the container into the background:
 ```
-docker-compose up -d dayzserver
+docker-compose up -d run
 ```
 Tail the log:
 ```
-docker-compose logs -f dayzserver
+docker-compose logs -f run
+```
+  
+## Manage
+
+### Workshop
+To add a workshop item, edit `files/workshop.cfg` and add the item's id after the comment. Each id should be on its own
+line, after the comment, which should not be removed. Install them:
+```
+docker-compose run --rm manage
 ```
-### Workshop (TODO)
-* Update/Add/Remove workshop files
 * Makage -mod= command line
-### Maintenance (TODO)
+
+## TODO
+
 * Update the server
 * Restart the server
-* Rcon to the server?
+* RCON to the server?
 * List current rocn password
-* Detect changes to config files and propagate them
+* Detect changes to config files and propagate them, with prompting.

docker-compose.yml

@@ -5,14 +5,7 @@ volumes:
 
 services:
 
-  config:
+  run:
-    build: .
-    command: /files/login.sh
-    volumes:
-      - homedir:/home/user
-      - ./files:/files
-
-  dayzserver:
     build: .
     ports:
       - "2302:2302/udp"

files/dayzserver

@@ -3,8 +3,6 @@
 appid=1042420
 dayz_id=221100
 
-if [ "${ansi}" != "off" ]; then
-        # echo colors
 default="\e[0m"
 red="\e[31m"
 green="\e[32m"
@@ -14,26 +12,39 @@ if [ "${ansi}" != "off" ]; then
 lightblue="\e[94m"
 magenta="\e[35m"
 cyan="\e[36m"
-        # carriage return & erase to end of line
+
-        creeol="\r\033[K"
+STEAMCMD=/steamcmd/steamcmd.sh
-fi
 
 fn_loadconfig_dayz(){
   source /files/default.cfg
   # Handle adding the server cfg file
   if [ ! -f ${HOME}/serverfiles/serverDZ.cfg ]
   then
+    echo "Creating initial serverDZ.cfg"
+  	cp /files/serverDZ.cfg "${HOME}/serverfiles/serverDZ.cfg"
+	elif diff -q /files/default.cfg "${HOME}/serverfiles/serverDZ.cfg" > /dev/null
+	then
+    echo "Updating serverDZ.cfg"
   	cp /files/serverDZ.cfg "${HOME}/serverfiles/serverDZ.cfg"
 	fi
 }
 
 fn_create_beconfig(){
-  # Set a random RCON password, unless one's set in the environment
   if [ -d "${HOME}/serverfiles/battleye" ] && [ ! -f "${HOME}/serverfiles/battleye/beserver_x64.cfg" ]
   then
     echo -n "Creating Battle Eye RCON file "
+    fn_do_rcon
+  elif diff -q /files/beserver_x64.cfg "${HOME}/serverfiles/battleye/beserver_x64.cfg" > /dev/null
+  then
+    echo -n "Updating Battle Eye RCON file "
+    fn_do_rcon
+  fi
+}
+
+fn_do_rcon(){
   cp /files/beserver_x64.cfg "${HOME}/serverfiles/battleye/beserver_x64.cfg"
-    if grep RCON_PASSWORD /files/beserver_x64.cfg
+  # Set a random RCON password, unless one's set in the environment
+  if grep -v RCON_PASSWORD /files/beserver_x64.cfg
   then
     RCON_PASSWORD=$(< /dev/urandom tr -dc 'A-Za-z0-9' | head -c10)
     echo -e "using random RCON password ${yellow}${RCON_PASSWORD}"
@@ -41,7 +52,6 @@ fn_create_beconfig(){
   else
     echo "using the RCON_PASSWORD already set in files/beserver_x64.cfg."
   fi
-  fi
 }
 
 fn_start_dayz(){
@@ -68,16 +78,6 @@ fn_steamlogin_dayz(){
 	source /files/steamlogin
 }
 
-fn_install_steamcmd(){
-	if [ ! -f "${HOME}/steamcmd/steamcmd.sh" ]; then
-		mkdir ${HOME}/steamcmd &> /dev/null
-		curl -sqL "https://steamcdn-a.akamaihd.net/client/installer/steamcmd_linux.tar.gz" | tar zxf - -C steamcmd
-		printf "[ ${yellow}STEAM${default} ] Steamcmd installed\n"
-	else
-		printf "[ ${lightblue}STEAM${default} ] Steamcmd already installed\n"
-	fi
-}
-
 fn_install_dayz(){
 	if [ ! -f "${HOME}/serverfiles/DayZServer" ]; then
 		mkdir ${HOME}/serverfiles &> /dev/null
@@ -92,7 +92,7 @@ fn_install_dayz(){
 
 fn_runupdate_dayz(){
 	fn_loadconfig_dayz
-	${HOME}/steamcmd/steamcmd.sh +force_install_dir ${HOME}/serverfiles +login "${steamlogin}" +app_update "${appid}" +quit
+	${STEAMCMD} +force_install_dir ${HOME}/serverfiles +login "${steamlogin}" +app_update "${appid}" +quit
 }
 
 fn_update_dayz(){
@@ -108,7 +108,7 @@ fn_update_dayz(){
 		sleep 1
 	fi
 	# check for new build
-	availablebuild=$(${HOME}/steamcmd/steamcmd.sh +login "${steamlogin}" +app_info_update 1 +app_info_print "${appid}" +app_info_print "${appid}" +quit | sed -n '/branch/,$p' | grep -m 1 buildid | tr -cd '[:digit:]')
+	availablebuild=$(${STEAMCMD} +login "${steamlogin}" +app_info_update 1 +app_info_print "${appid}" +app_info_print "${appid}" +quit | sed -n '/branch/,$p' | grep -m 1 buildid | tr -cd '[:digit:]')
 	if [ -z "${availablebuild}" ]; then
 		printf "\r[ ${red}FAIL${default} ] Checking for update: SteamCMD\n"
 		printf "\r[ ${red}FAIL${default} ] Checking for update: SteamCMD: Not returning version info\n"
@@ -138,7 +138,7 @@ fn_update_dayz(){
 
 fn_runvalidate_dayz(){
 	fn_loadconfig_dayz
-	${HOME}/steamcmd/steamcmd.sh +force_install_dir ${HOME}/serverfiles +login "${steamlogin}" +app_update "${appid}" validate +quit
+	${STEAMCMD} +force_install_dir ${HOME}/serverfiles +login "${steamlogin}" +app_update "${appid}" validate +quit
 }
 
 fn_workshop_mods(){
@@ -163,7 +163,7 @@ fn_workshop_mods(){
 		fi
 	done
 	# download mods
-	${HOME}/steamcmd/steamcmd.sh +force_install_dir ${HOME}/serverfiles +login "${steamlogin}" ${workshoplist} +quit
+	${STEAMCMD} +force_install_dir ${HOME}/serverfiles +login "${steamlogin}" ${workshoplist} +quit
 	# link mods
 	for i in "${workshopID[@]}"
 	do

files/login.sh

@@ -1,14 +0,0 @@
-#!/usr/bin/env bash
-
-if [ -f ${HOME}/.steamlogin ]
-then
-  echo "The file .steamlogin already exists. Remove it first then run this again. (See README.md)"
-  exit 1
-else
-  source /files/dayzserver
-  fn_install_steamcmd
-  echo "Setting up Steam credentials"
-  cp /files/steamlogin "${HOME}/.steamlogin"
-  source "${HOME}/.steamlogin"
-  ${HOME}/steamcmd/steamcmd.sh +force_install_dir ${HOME}/serverfiles +login "${steamlogin}" +quit
-fi

files/manage

@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+
+if [[ "${1}" = "login" ]]
+then
+  if [ -f ${HOME}/.steamlogin ]
+  then
+    echo -n "The steam login is already set. Reset it? (Y|n): "
+    read -s -n 1 a
+    a=$(echo ${a} | tr A-Z a-z)
+    if [[ "${a}" = "y" ]]
+    then
+      rm -f ${HOME}/.steamlogin
+    else
+      echo "Not reset. Nothing to do. Exiting..."
+      exit 0
+    fi
+  fi
+  if [ ! -f ${HOME}/.steamlogin ]
+  then
+    echo "Setting up Steam credentials"
+    cp /files/steamlogin "${HOME}/.steamlogin"
+    source "${HOME}/.steamlogin"
+    steamcmd.sh +force_install_dir ${HOME}/serverfiles +login "${steamlogin}" +quit
+  fi
+elif [[ "${1}" = "workshop" ]]
+then
+  echo "Updating workshopp..."
+elif [[ "${1}" = "backup" ]]
+then
+  echo "Creating backup..."
+elif [[ "${1}" = "rconpassword" ]]
+then
+  echo "The RCON password is: ..."
+else
+  echo "Unknown option '${1}'"
+  echo "Usage: manage backup | login | workshop | rconpassword"
+  exit 0
+fi
+