Allow custom server.properties per environment

chart/templates/stateful-set.yaml

@@ -36,6 +36,8 @@ spec:
         env:
         - name: CMD
           value: {{ .Values.cmd }}
+        - name: ENVIRONMENT
+          value: {{ .Values.environment }}
       imagePullSecrets:
       - name: regcred
       volumes:

chart/values.yaml

@@ -2,6 +2,7 @@ image: docker.home.valente.ar/svc-minecraft
 port: 25565
 
 cmd: java -Xms1G -Xmx1G -jar /app/paper*.jar nogui
+environment: staging
 
 pvc:
   storage: 5Gi

src/server.properties.staging

@@ -0,0 +1,3 @@
+motd=Brian's Server (staging)
+view-distance=10
+simulation-distance=10

start.sh

@@ -9,8 +9,20 @@ rm -rf /app-data/plugins/*.jar
 # ProtectionStones
 rm -rf /app-data/plugins/ProtectionStones
 
+# server.properties
+rm /app-data/server.properties*
+
 # Copy all files from /app/data inside /app-data, replacing if needed, recursively
 cp -r /app/data/* /app-data/
 
+# Merge server.properties
+if [ -f /app-data/server.properties.$ENVIRONMENT ]; then
+    cat /app-data/server.properties.$ENVIRONMENT /app-data/server.properties > /app-data/server.properties.tmp
+    mv /app-data/server.properties.tmp /app-data/server.properties
+fi
+
+# Delete server.properties.*
+rm /app-data/server.properties.*
+
 # Start the server
 eval "exec $CMD" 

values-staging.yaml

@@ -1,13 +1,13 @@
-cmd: java -Xms512M -Xmx512M -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M -XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 -Dusing.aikars.flags=https://mcflags.emc.gs -Daikars.new.flags=true -jar /app/paper*.jar nogui
+cmd: java -Xms2G -Xmx2G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M -XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 -Dusing.aikars.flags=https://mcflags.emc.gs -Daikars.new.flags=true -jar /app/paper*.jar nogui
 
 pvc:
   storage: 5Gi
 
 resources:
   requests:
-    memory: "1Gi"
+    memory: "3Gi"
   limits:
-    memory: "1.5Gi"
+    memory: "3Gi"
 
 prometheus:
   enabled: true