initial commit

.drone.yml

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+kind: pipeline
+name: default
+
+steps:
+- name: docker
+  image: plugins/docker
+  settings:
+    repo: docker.kapelle.org/l4d2
+    registry: docker.kapelle.org

.gitignore

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+*
+!.gitignore
+!Dockerfile
+!docker-compose.yml
+!start.sh
+!README.md
+!.drone.yml

Dockerfile

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+FROM cm2network/steamcmd:latest
+
+COPY start.sh /home/steam/start.sh
+
+WORKDIR /home/steam/
+
+ENTRYPOINT /home/steam/start.sh

README.md

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+Left 4 dead 2 server.
+
+# Ports
+- 27015
+- 27015/udp
+
+# Configuration
+
+The `server.cfg` gets created on the fly and gets filled with the enviroment variable starting with `CVAR_`. 
+So for example to set the RCON password set the enviroment variable `CVAR_RCON_PASSWORD=password123`. 
+Try to avoid variables with the word `CVAR_` and avoid `=` in it.
+
+A list of available cvars can be found [here](https://developer.valvesoftware.com/wiki/List_of_L4D2_Cvars).

docker-compose.yml

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+version: "3"
+
+services:
+  l4d2:
+    build: .
+    environment:
+      - CVAR_HOSTNAME=My left 4 dead server
+      - CVAR_RCON_PASSWORD=password123
+      - CVAR_MP_DISABLE_AUTOKICK=1

start.sh

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+#!/bin/bash
+
+set -e
+
+echo "### Installing / Updateing l4d2 ###"
+
+/home/steam/steamcmd/steamcmd.sh  +login anonymous +force_install_dir $HOME/server +app_update 222860 validate +quit
+
+echo "### Creating config ###"
+
+cd $HOME/server
+
+env | awk -F "=" '/^CVAR_/ {sub("CVAR_","",$1); print tolower($1),($2 ~ /^[0-9]+$/)?$2:"\""$2"\""}' > docker_server.cfg
+
+echo "### Starting l4d2 ###"
+
+$HOME/server/srcds_run -console -game left4dead2 +maxplayers 16 -maxclients 16 +map c1m1_hotel +exec docker_server.cfg