[docker@swarm1 blockchain]$ docker stack ps blockchain
"docker stack ps" requires exactly 1 argument.
See 'docker stack ps --help'.

Usage:  docker stack ps [OPTIONS] STACK

List the tasks in the stack
[docker@swarm1 blockchain]$ docker stack ps  blockchain
ID             NAME                          IMAGE                   NODE      DESIRED STATE   CURRENT STATE             ERROR                    PORTS
ie4zpiksg1bm   blockchain_blockchain.1       blockchain-demo:1.0.0   swarm3    Running         Preparing 8 seconds ago                            
msvr0q7yaig2    \_ blockchain_blockchain.1   blockchain-demo:1.0.0   swarm2    Shutdown        Rejected 8 seconds ago    "No command specified"   
lrej2y8h3qes   blockchain_blockchain.2       blockchain-demo:1.0.0   swarm1    Running         Preparing 7 seconds ago                            
1k5dur2mbdos    \_ blockchain_blockchain.2   blockchain-demo:1.0.0   swarm1    Shutdown        Rejected 8 seconds ago    "No command specified"   
[docker@swarm1 blockchain]$ docker stack ps  blockchain
ID             NAME                          IMAGE                   NODE      DESIRED STATE   CURRENT STATE              ERROR                    PORTS
ie4zpiksg1bm   blockchain_blockchain.1       blockchain-demo:1.0.0   swarm3    Running         Preparing 19 seconds ago                            
msvr0q7yaig2    \_ blockchain_blockchain.1   blockchain-demo:1.0.0   swarm2    Shutdown        Rejected 18 seconds ago    "No command specified"   
lrej2y8h3qes   blockchain_blockchain.2       blockchain-demo:1.0.0   swarm1    Running         Preparing 18 seconds ago                            
1k5dur2mbdos    \_ blockchain_blockchain.2   blockchain-demo:1.0.0   swarm1    Shutdown        Rejected 18 seconds ago    "No command specified"   
[docker@swarm1 blockchain]$ docker stack ps  blockchain
ID             NAME                          IMAGE                   NODE      DESIRED STATE   CURRENT STATE              ERROR                    PORTS
ie4zpiksg1bm   blockchain_blockchain.1       blockchain-demo:1.0.0   swarm3    Running         Preparing 25 seconds ago                            
msvr0q7yaig2    \_ blockchain_blockchain.1   blockchain-demo:1.0.0   swarm2    Shutdown        Rejected 24 seconds ago    "No command specified"   
lrej2y8h3qes   blockchain_blockchain.2       blockchain-demo:1.0.0   swarm1    Running         Preparing 24 seconds ago                            
1k5dur2mbdos    \_ blockchain_blockchain.2   blockchain-demo:1.0.0   swarm1    Shutdown        Rejected 24 seconds ago    "No command specified"   
[docker@swarm1 blockchain]$ docker stack ps  blockchain
ID             NAME                          IMAGE                   NODE      DESIRED STATE   CURRENT STATE             ERROR                    PORTS
kkadrttdcp58   blockchain_blockchain.1       blockchain-demo:1.0.0   swarm3    Ready           Preparing 2 seconds ago                            
ie4zpiksg1bm    \_ blockchain_blockchain.1   blockchain-demo:1.0.0   swarm3    Shutdown        Rejected 2 seconds ago    "No command specified"   
msvr0q7yaig2    \_ blockchain_blockchain.1   blockchain-demo:1.0.0   swarm2    Shutdown        Rejected 39 seconds ago   "No command specified"   
s1lyh7zrm741   blockchain_blockchain.2       blockchain-demo:1.0.0   swarm1    Ready           Preparing 1 second ago                             
lrej2y8h3qes    \_ blockchain_blockchain.2   blockchain-demo:1.0.0   swarm1    Shutdown        Rejected 2 seconds ago    "No command specified"   
1k5dur2mbdos    \_ blockchain_blockchain.2   blockchain-demo:1.0.0   swarm1    Shutdown        Rejected 39 seconds ago   "No command specified"   

[docker@swarm1 dxpt]$ docker stack deploy -c stack.yaml dxpt 
Creating network dxpt_default
Creating service dxpt_dxpt
[docker@swarm1 dxpt]$ cat stack.yaml 
version: '3'
services:
  dxpt:
    tty: True
    command: /run.sh
    image: dxpt:3.0.6
    ports:
      - 6666:6666
    deploy:
      replicas: 2
      restart_policy:
        condition: on-failure
        max_attempts: 3
    environment:
      - LANG=en_US.UTF-8

[docker@swarm1 dxpt]$ docker service ls
ID             NAME               MODE         REPLICAS   IMAGE                   PORTS
m9meryzj6om2   block_blockchain   replicated   2/2        blockchain-demo:1.0.0   *:3000->3000/tcp
limmvojpl8iu   dxpt_dxpt          replicated   2/2        dxpt:3.0.6              *:6666->6666/tcp

[docker@swarm1 dxpt]$ docker stack ps block
ID             NAME                 IMAGE                   NODE      DESIRED STATE   CURRENT STATE           ERROR     PORTS
nde571g812eb   block_blockchain.1   blockchain-demo:1.0.0   swarm1    Running         Running 2 minutes ago             
jrk90usmdffq   block_blockchain.2   blockchain-demo:1.0.0   swarm2    Running         Running 2 minutes ago