John Patrick TeruelandCopilot
3f6dcab01f
Frontend in Docker container can't reach localhost:8000 on the host.
Implemented Docker networking fix using host.docker.internal.
Changes:
• Updated frontend/src/App.tsx to use host.docker.internal:8000 in production
- Automatically switches between localhost:8000 (dev) and host.docker.internal:8000 (Docker)
• Added frontend/.env.example with API configuration
• Updated docker-compose.yml frontend environment:
- Added VITE_API_URL=http://host.docker.internal:8000
- Added comments explaining the networking approach
• Enhanced DOCKER_QUICK_START.md troubleshooting section
- Added detailed networking explanation
- Instructions for verifying host.docker.internal works
- Linux-specific workarounds
How it works:
• Docker Desktop automatically maps host.docker.internal to localhost on the host machine
• Frontend (running in Docker) uses host.docker.internal:8000
• API & Consumer (running on host) listen on localhost:8000
• Both reference the same service, just from different network contexts
Workflow remains:
Terminal 1: docker compose up (infra + frontend in Docker)
Terminal 2: uvicorn api.main:app --reload (your host machine)
Terminal 3: cd consumer && python pipeline.py (your host machine)
Frontend automatically reaches API at http://host.docker.internal:8000
without any manual configuration needed.
Co-authored-by: Copilot <[email protected]>
82 lines
2.0 KiB
YAML
82 lines
2.0 KiB
YAML
version: "3.8"
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services:
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zookeeper:
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image: confluentinc/cp-zookeeper:7.5.0
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environment:
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ZOOKEEPER_CLIENT_PORT: 2181
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ZOOKEEPER_TICK_TIME: 2000
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ports:
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- "2181:2181"
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networks:
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- payguard-network
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kafka:
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image: confluentinc/cp-kafka:7.5.0
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depends_on:
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- zookeeper
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ports:
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- "9092:9092"
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environment:
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KAFKA_BROKER_ID: 1
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KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
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KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka:29092,PLAINTEXT_HOST://localhost:9092
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KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT
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KAFKA_INTER_BROKER_LISTENER_NAME: PLAINTEXT
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KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
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KAFKA_AUTO_CREATE_TOPICS_ENABLE: "true"
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networks:
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- payguard-network
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healthcheck:
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test: kafka-broker-api-versions --bootstrap-server localhost:9092
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interval: 10s
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timeout: 5s
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retries: 5
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redis:
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image: redis:7.2-alpine
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ports:
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- "6379:6379"
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networks:
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- payguard-network
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healthcheck:
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test: redis-cli ping
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interval: 10s
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timeout: 5s
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retries: 5
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volumes:
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- redis_data:/data
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frontend:
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build:
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context: ./frontend
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dockerfile: Dockerfile
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ports:
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- "3000:3000"
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networks:
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- payguard-network
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depends_on:
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kafka:
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condition: service_healthy
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redis:
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condition: service_healthy
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healthcheck:
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test: wget --quiet --tries=1 --spider http://localhost:3000 || exit 1
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interval: 10s
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timeout: 5s
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retries: 5
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environment:
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- NODE_ENV=production
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- VITE_API_URL=http://host.docker.internal:8000
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restart: unless-stopped
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# NOTE: Frontend connects to API running on host machine via host.docker.internal
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# This allows docker compose up to start infrastructure + frontend,
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# while API and Consumer run locally on the same machine
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volumes:
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redis_data:
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networks:
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payguard-network:
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driver: bridge
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