gitea: Increase limits to 1GB and lru caching

values/gitea/manifests/dragonfly.yaml

@@ -8,18 +8,13 @@ spec:
   resources:
     requests:
       cpu: 150m
-      memory: 256Mi
+      memory: 1Gi
     limits:
-      memory: 256Mi
+      memory: 1Gi
   args:
-    - --dbfilename=dump           # Static filename prevents disk exhaustion
+    - --dbfilename=dump               # Static filename prevents disk exhaustion
-    - --maxmemory=$(MAX_MEMORY)Mi # Graceful memory management (90% of limit)
+    - --maxmemory=920Mi               # ~90% of the 1Gi limit, leaving headroom
+    - --maxmemory-policy=volatile-lru # evict only TTL'd keys (cache/session); protect queue
     - --proactor_threads=1 # Auto-detect CPU cores (optimal threading)
     - --cluster_mode=emulated
     - --logtostderr
-  env:
-    - name: MAX_MEMORY
-      valueFrom:
-        resourceFieldRef:
-          resource: limits.memory
-          divisor: 1Mi