add opensearch addons

opensearch-coord1/rootfs/etc/cont-init.d/10-copy-config

@@ -0,0 +1,14 @@
+#!/command/with-contenv bash
+set -euo pipefail
+SRC_DIR=/rootfs-config
+DST_DIR=/usr/share/opensearch/config
+if [ -d "$SRC_DIR" ]; then
+  echo "[cont-init] Copying config snippets from $SRC_DIR to $DST_DIR"
+  for f in "$SRC_DIR"/*; do
+    base=$(basename "$f")
+    if [ ! -f "$DST_DIR/$base" ]; then
+      cp "$f" "$DST_DIR/"
+      echo "[cont-init] Copied $base"
+    fi
+  done
+fi

opensearch-coord1/rootfs/etc/cont-init.d/20-install-plugins

@@ -0,0 +1,20 @@
+#!/command/with-contenv bash
+set -euo pipefail
+OPTIONS_FILE=/data/options.json
+if [ ! -f "$OPTIONS_FILE" ]; then
+  echo "[cont-init] No options.json, skipping plugin install"
+  exit 0
+fi
+if ! jq -e '.plugins // [] | length > 0' "$OPTIONS_FILE" >/dev/null 2>&1; then
+  echo "[cont-init] No plugins configured, skipping"
+  exit 0
+fi
+echo "[cont-init] Installing plugins from options.json"
+jq -r '.plugins[]' "$OPTIONS_FILE" | while read -r plugin; do
+  echo "[cont-init] Installing plugin: $plugin"
+  if /usr/share/opensearch/bin/opensearch-plugin install --batch "$plugin"; then
+    echo "[cont-init] Installed $plugin"
+  else
+    echo "[cont-init] Failed to install $plugin (continuing)"
+  fi
+done

opensearch-coord1/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-coord1/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-1"
+HEAP="2g"
+CLUSTER_NAME="hass-opensearch-cluster"
+HTTP_PORT=9203
+TRANSPORT_PORT=9303
+NODE_ROLES="coordinating_only"
+
+# override from options.json if present
+if [ -f "$OPTIONS_FILE" ]; then
+  NODE_NAME=$(jq -r '.node_name // "os-coord-1"' "$OPTIONS_FILE" 2>/dev/null || echo "os-coord-1")
+  HEAP=$(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 // 9203' "$OPTIONS_FILE" 2>/dev/null || echo 9203)
+  TRANSPORT_PORT=$(jq -r '.transport_port // 9303' "$OPTIONS_FILE" 2>/dev/null || echo 9303)
+  NODE_ROLES=$(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: $os-coord-1 roles:$coordinating_only heap:$2g http:$9203 transport:$9303"
+
+exec /usr/share/opensearch/bin/opensearch \
+  -E cluster.name=$hass-opensearch-cluster \
+  -E node.name=$os-coord-1 \
+  -E node.roles=[$coordinating_only] \
+  -E http.port=$9203 \
+  -E transport.port=$9303 \
+  -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

opensearch-coord1/rootfs/rootfs-config/opensearch.yml

@@ -0,0 +1,8 @@
+cluster.name: hass-opensearch-cluster
+node.name: os-coord-1
+path.data: /var/lib/opensearch
+path.logs: /var/log/opensearch
+network.host: 0.0.0.0
+http.port: 9203
+transport.port: 9303
+node.roles: ['coordinating_only']