feat(service): add langflow template (#8006)

templates/compose/langflow.yaml

@@ -0,0 +1,43 @@
+# documentation: https://docs.langflow.org
+# slogan: Langflow is an open-source, Python-based, customizable framework for building AI applications.
+# category: ai
+# tags: langflow, ai, openai, gpt, llm, workflow, automation, open source, low code
+# logo: svgs/langflow.svg
+# port: 7860
+
+services:
+  langflow:
+    image: langflowai/langflow:1.7.2
+    environment:
+      - SERVICE_URL_LANGFLOW_7860
+      - LANGFLOW_AUTO_LOGIN=${LANGFLOW_AUTO_LOGIN:-false}
+      - LANGFLOW_SUPERUSER=$SERVICE_USER_LANGFLOW
+      - LANGFLOW_SUPERUSER_PASSWORD=$SERVICE_PASSWORD_LANGFLOW
+      - LANGFLOW_DATABASE_URL=postgresql://$SERVICE_USER_POSTGRES:$SERVICE_PASSWORD_POSTGRES@postgres:5432/${POSTGRES_DB:-langflow-db}
+      - LANGFLOW_CONFIG_DIR=app/langflow
+      - LANGFLOW_HOST=0.0.0.0
+      - PORT=7860
+    healthcheck:
+      test: ["CMD-SHELL", "curl -f http://127.0.0.1:7860/health"]
+      interval: 5s
+      timeout: 20s
+      retries: 10
+    depends_on:
+      postgres:
+        condition: service_healthy
+    volumes:
+      - langflow-data:/app/langflow
+
+  postgres:
+    image: postgres:18-alpine
+    environment:
+      - POSTGRES_USER=$SERVICE_USER_POSTGRES
+      - POSTGRES_PASSWORD=$SERVICE_PASSWORD_POSTGRES
+      - POSTGRES_DB=${POSTGRES_DB:-langflow-db}
+    volumes:
+      - langflow-postgres:/var/lib/postgres/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U $${POSTGRES_USER} -d $${POSTGRES_DB}"]
+      interval: 5s
+      timeout: 20s
+      retries: 10