rename 'repo' to 'operator' in opensearch index and crawler

Author: labrenbe

demos/opensearch-rag/README.md

@@ -0,0 +1,43 @@
+# OpenSearch RAG Demo - Embeddings Generation
+
+This directory contains the script to regenerate embeddings for the Stackable documentation.
+
+## Prerequisites
+
+**Ollama with nomic-embed-text:v1.5 model** - Choose one of the following options:
+
+### Option 1: Run Ollama locally
+
+```bash
+# Install Ollama
+curl -fsSL https://ollama.com/install.sh | sh
+
+# Pull the embedding model
+ollama pull nomic-embed-text:v1.5
+```
+
+### Option 2: Port-forward from the demo
+
+```bash
+# Deploy the demo if not already running
+stackablectl demo install opensearch-rag
+
+# Port-forward Ollama (keep running in a separate terminal)
+kubectl port-forward deployment/ollama 11434:11434
+```
+
+## Regenerate Embeddings
+
+Run the script using uv to automatically handle Python dependencies:
+
+```bash
+uv run --with requests --with beautifulsoup4 python generate-embeddings-local.py
+```
+
+This will:
+- Crawl docs.stackable.tech
+- Extract and chunk documentation
+- Generate embeddings using nomic-embed-text
+- Save to `stackable-docs-embeddings.json` (~89 MB, ~4200 chunks)
+
+The process can take more than 1 hour mainly depending on your CPU.