poststartup script moved to extra container, non init

elasticsearch/values.yaml

@@ -179,7 +179,7 @@ extraContainers:
         - /bin/bash
         - -c
         - |
-          set -ex    
+          set -ex
           echo "[template-loader] Waiting for Elasticsearch at $ES_URL..."
           for i in $(seq 1 ${MAX_RETRIES:-30}); do
             if curl -s "$ES_URL" >/dev/null; then
@@ -189,16 +189,22 @@ extraContainers:
             echo "[template-loader] Attempt $i: ES not ready, sleeping..."
             sleep "${RETRY_INTERVAL:-5}"
           done
-          echo "[template-loader] Applying index templates..."
+          echo "[template-loader] Checking and applying index templates if needed..."
           for idx in "chat:$TEMPLATE_PATH_1" "message:$TEMPLATE_PATH_2" "user:$TEMPLATE_PATH_3"; do
             name="${idx%%:*}"
             path="${idx##*:}"
-            echo "[template-loader] Applying template: $name from $path..."
-            curl -X PUT "$ES_URL/$name" \
-              -H 'Content-Type: application/json' \
-              --data-binary @"$path"
+            # Check if index exists
+            if curl -sf -o /dev/null "$ES_URL/$name"; then
+              echo "[template-loader] Index $name already exists. Skipping."
+            else
+              echo "[template-loader] Creating index $name from $path..."
+              curl -X PUT "$ES_URL/$name" \
+                -H 'Content-Type: application/json' \
+                --data-binary @"$path"
+            fi
           done
-          echo "[template-loader] All templates applied. Exiting."
+          echo "[template-loader] All templates applied (or skipped). Exiting."
+
     env:
       - name: ES_URL
         value: "http://elasticsearch-master:9200"