Added Docker container setup

.env.example

@@ -0,0 +1,37 @@
+# Server Configuration
+HOST=0.0.0.0
+PORT=9621
+
+# Directory Configuration
+WORKING_DIR=/app/data/rag_storage
+INPUT_DIR=/app/data/inputs
+
+# LLM Configuration
+LLM_BINDING=ollama
+LLM_BINDING_HOST=http://localhost:11434
+LLM_MODEL=mistral-nemo:latest
+
+# Embedding Configuration
+EMBEDDING_BINDING=ollama
+EMBEDDING_BINDING_HOST=http://localhost:11434
+EMBEDDING_MODEL=bge-m3:latest
+
+# RAG Configuration
+MAX_ASYNC=4
+MAX_TOKENS=32768
+EMBEDDING_DIM=1024
+MAX_EMBED_TOKENS=8192
+
+# Security (empty for no key)
+LIGHTRAG_API_KEY=your-secure-api-key-here
+
+# Logging
+LOG_LEVEL=INFO
+
+# Optional SSL Configuration
+#SSL=true
+#SSL_CERTFILE=/path/to/cert.pem
+#SSL_KEYFILE=/path/to/key.pem
+
+# Optional Timeout
+#TIMEOUT=30