Connection refused on Docker tutorial get started part 4
问题 I don't understand what I missed. docker.compose.yml version: "3" services: web: # replace username/repo:tag with your name and image details image: svezday/friendlyhello:part-1 deploy: replicas: 5 restart_policy: condition: on-failure resources: limits: cpus: "0.1" memory: 50M ports: - "80:80" networks: - webnet visualizer: image: dockersamples/visualizer:stable ports: - "8080:8080" volumes: - "/var/run/docker.sock:/var/run/docker.sock" deploy: placement: constraints: [node.role == manager]