add opensearch addons

opensearch-coord2/rootfs/etc/s6-overlay/s6-rc.d/opensearch/finish

@@ -0,0 +1,3 @@
+#!/command/execlineb -S0
+# Prevent restart loops; allow clean exit
+exit 0

opensearch-coord2/rootfs/etc/s6-overlay/s6-rc.d/opensearch/run

@@ -0,0 +1,33 @@
+#!/command/with-contenv bash
+set -euo pipefail
+OPTIONS_FILE=/data/options.json || true
+NODE_NAME="os-coord-2"
+HEAP="2g"
+CLUSTER_NAME="hass-opensearch-cluster"
+HTTP_PORT=9204
+TRANSPORT_PORT=9304
+NODE_ROLES="coordinating_only"
+
+# override from options.json if present
+if [ -f "$OPTIONS_FILE" ]; then
+  NODE_NAME=$(jq -r '.node_name // "os-coord-2"' "$OPTIONS_FILE" 2>/dev/null || echo "os-coord-2")
+  HEAP=$(jq -r '.opensearch_heap // "2g"' "$OPTIONS_FILE" 2>/dev/null || echo "2g")
+  CLUSTER_NAME=$(jq -r '.cluster_name // "hass-opensearch-cluster"' "$OPTIONS_FILE" 2>/dev/null || echo "hass-opensearch-cluster")
+  HTTP_PORT=$(jq -r '.http_port // 9204' "$OPTIONS_FILE" 2>/dev/null || echo 9204)
+  TRANSPORT_PORT=$(jq -r '.transport_port // 9304' "$OPTIONS_FILE" 2>/dev/null || echo 9304)
+  NODE_ROLES=$(jq -r '.node_roles // ["coordinating_only"] | join(",")' "$OPTIONS_FILE" 2>/dev/null || echo "coordinating_only")
+fi
+
+export OPENSEARCH_JAVA_OPTS="-Xms$2g -Xmx$2g"
+
+echo "[s6-run] Starting OpenSearch node: $os-coord-2 roles:$coordinating_only heap:$2g http:$9204 transport:$9304"
+
+exec /usr/share/opensearch/bin/opensearch \
+  -E cluster.name=$hass-opensearch-cluster \
+  -E node.name=$os-coord-2 \
+  -E node.roles=[$coordinating_only] \
+  -E http.port=$9204 \
+  -E transport.port=$9304 \
+  -E network.host=0.0.0.0 \
+  -E discovery.seed_hosts=os-master,os-data-1,os-data-2,os-coord-1,os-coord-2 \
+  -E cluster.initial_master_nodes=os-master