version: '3.8' services: web: image: nginx:alpine ports: - "8085:80" healthcheck: test: ["CMD", "wget", "--quiet", "--tries=1", "--spider", "http://localhost/"] interval: 10s timeout: 5s retries: 3 start_period: 5s backup: image: nginx:alpine exclude_from_hc: true healthcheck: # Even though this will fail, it's excluded from health checks test: ["CMD", "wget", "--quiet", "--tries=1", "--spider", "http://localhost:9999/"] interval: 10s timeout: 5s retries: 3 start_period: 5s # Should still show "running (healthy)" because backup is excluded