feat: support elasticsearch vector database (#3558)

Co-authored-by: miendinh <miendinh@users.noreply.github.com>
Co-authored-by: crazywoola <100913391+crazywoola@users.noreply.github.com>
Co-authored-by: crazywoola <427733928@qq.com>

docker/docker-compose.yaml

@@ -125,6 +125,10 @@ x-shared-env: &shared-api-worker-env
   CHROMA_DATABASE: ${CHROMA_DATABASE:-default_database}
   CHROMA_AUTH_PROVIDER: ${CHROMA_AUTH_PROVIDER:-chromadb.auth.token_authn.TokenAuthClientProvider}
   CHROMA_AUTH_CREDENTIALS: ${CHROMA_AUTH_CREDENTIALS:-}
+  ELASTICSEARCH_HOST: ${ELASTICSEARCH_HOST:-127.0.0.1}
+  ELASTICSEARCH_PORT: ${ELASTICSEARCH_PORT:-9200}
+  ELASTICSEARCH_USERNAME: ${ELASTICSEARCH_USERNAME:-elastic}
+  ELASTICSEARCH_PASSWORD: ${ELASTICSEARCH_PASSWORD:-elastic}
   # AnalyticDB configuration
   ANALYTICDB_KEY_ID: ${ANALYTICDB_KEY_ID:-}
   ANALYTICDB_KEY_SECRET: ${ANALYTICDB_KEY_SECRET:-}
@@ -595,6 +599,27 @@ services:
     ports:
       - "${MYSCALE_PORT:-8123}:${MYSCALE_PORT:-8123}"
 
+  elasticsearch:
+    image: docker.elastic.co/elasticsearch/elasticsearch:8.14.3
+    container_name: elasticsearch
+    profiles:
+      - elasticsearch
+    restart: always
+    environment:
+      - "ELASTIC_PASSWORD=${ELASTICSEARCH_USERNAME:-elastic}"
+      - "cluster.name=dify-es-cluster"
+      - "node.name=dify-es0"
+      - "discovery.type=single-node"
+      - "xpack.security.http.ssl.enabled=false"
+      - "xpack.license.self_generated.type=trial"
+    ports:
+      - "${ELASTICSEARCH_PORT:-9200}:${ELASTICSEARCH_PORT:-9200}"
+    healthcheck:
+      test: ["CMD", "curl", "-s", "http://localhost:9200/_cluster/health?pretty"]
+      interval: 30s
+      timeout: 10s
+      retries: 50
+
   # unstructured .
   # (if used, you need to set ETL_TYPE to Unstructured in the api & worker service.)
   unstructured: