Broadcast command across all nodes on swarm cluster

README.md

Broadcast command across all nodes

$ BUILD_NUMBER=2 docker stack deploy --prune -c my-stack.yml docker

Checking command output

$ docker service logs docker_docker 
docker_docker.0.x9u2y9noipp5@typer-pc    | docker_docker.kumhjmhzm046qoje5akk9c80a.x9u2y9noipp5biihrmu0xdonk
docker_docker.0.x9u2y9noipp5@typer-pc    | nginx
docker_docker.0.x9u2y9noipp5@typer-pc    | mg-swarm-cluster_mg-swarm-cluster_1_5f3aa6901869
docker_docker.0.x9u2y9noipp5@typer-pc    | dns-proxy-server

docker.yml

version: '3'
services:
  docker:
    image: alpine
    command: docker ps --format "{{.Names}}"
    environment:
      # this variable do the trick to force docker re deploy stack on every execution
      - BUILD_NUMBER=${BUILD_NUMBER}
    volumes: 
      - /usr/bin/docker:/usr/bin/docker
      - /var/run/docker.sock:/var/run/docker.sock
    deploy: 
      restart_policy:
        condition: on-failure
      mode: global