carbonledger/docker-compose.prod.yml at main · greatKhalifa-code/carbonledger · GitHub

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version: "3.9"

# Production overlay — rolling zero-downtime deployment.
# Usage: docker-compose -f docker-compose.yml -f docker-compose.prod.yml up -d --no-deps --scale backend=2 backend
services:
  backend:
    restart: always
    deploy:
      replicas: 2
      update_config:
        parallelism: 1          # replace one replica at a time
        delay: 15s              # wait between each replica
        failure_action: rollback
        order: start-first      # new container starts before old one stops
      rollback_config:
        parallelism: 1
        failure_action: continue
    healthcheck:
      test: ["CMD", "wget", "-qO-", "http://localhost:3001/health"]
      interval: 10s
      timeout: 5s
      retries: 3
      start_period: 20s

  frontend:
    restart: always
    deploy:
      replicas: 2
      update_config:
        parallelism: 1
        delay: 10s
        failure_action: rollback
        order: start-first
    healthcheck:
      test: ["CMD", "wget", "-qO-", "http://localhost:3000"]
      interval: 10s
      timeout: 5s
      retries: 3
      start_period: 20s