ERROR: DEPLOY - ALGUNS SERVIÇOS NÂO SOBEM

Config do compose:

version: "3"
services:

  redis:
    image: redis:alpine
    networks:
      - frontend
    deploy:
      replicas: 1
      restart_policy:
        condition: on-failure

  db:
    image: postgres:9.4
    volumes:
      - db-data:/var/lib/postgresql/data
    networks:
      - backend
    deploy:
      placement:
        constraints: [node.role == manager]

  vote:
    image: dockersamples/examplevotingapp_vote:before
    ports:
      - 5000:80
    networks:
      - frontend
    depends_on:
      - redis
    deploy:
      replicas: 2
      restart_policy:
        condition: on-failure

  result:
    image: dockersamples/examplevotingapp_result:before
    ports:
      - 5001:80
    networks:
      - backend
    depends_on:
      - db
    deploy:
      replicas: 1
      restart_policy:
        condition: on-failure

  worker:
    image: dockersamples/examplevotingapp_worker
    networks:
      - frontend
      - backend
    depends_on:
      - db
      - redis
    deploy:
      mode: replicated
      replicas: 1
      labels: [APP=VOTING]
      restart_policy:
        condition: on-failure
      placement:
        constraints: [node.role == worker]

  visualizer:
    image: dockersamples/visualizer:stable
    ports:
      - 8080:8080
    stop_grace_period: 1m30s
    volumes:
      - "/var/run/docker.sock:/var/run/docker.sock"
    deploy:
      placement:
        constraints: [node.role == manager]

networks:
  frontend:
  backend:

volumes:
  db-data:
  
===================================================================================================================================================================================================

- Resultados dos comandos docker -

docker service ls:
ID                  NAME                MODE                REPLICAS            IMAGE                                          PORTS
qugohkmgu9e5        vote_db             replicated          0/1                 postgres:9.4                                   
4lsqek0a4l1r        vote_redis          replicated          1/1                 redis:alpine                                   
6e0vk1bs1mku        vote_result         replicated          1/1                 dockersamples/examplevotingapp_result:before   *:5001->80/tcp
ob56gqjfg9lp        vote_visualizer     replicated          1/1                 dockersamples/visualizer:stable                *:8080->8080/tcp
trs8ini1o0nw        vote_vote           replicated          2/2                 dockersamples/examplevotingapp_vote:before     *:5000->80/tcp
p5es39hxj06b        vote_worker         replicated          0/1                 dockersamples/examplevotingapp_worker:latest   

docker service ps vote_db:
ID                  NAME                IMAGE               NODE                DESIRED STATE       CURRENT STATE           ERROR                       PORTS
uvrlqnjbbbx9        vote_db.1           postgres:9.4        vm2                 Ready               Ready 2 seconds ago                                 
tr5efw13sgn8         \_ vote_db.1       postgres:9.4        vm3                 Shutdown            Failed 2 seconds ago    "task: non-zero exit (1)"   
xij6fmp5cy04         \_ vote_db.1       postgres:9.4        vm2                 Shutdown            Failed 8 seconds ago    "task: non-zero exit (1)"   
olo4nrzgfdt6         \_ vote_db.1       postgres:9.4        vm2                 Shutdown            Failed 14 seconds ago   "task: non-zero exit (1)"   
o0qjmwbr0xip         \_ vote_db.1       postgres:9.4        vm2                 Shutdown            Failed 20 seconds ago   "task: non-zero exit (1)"   

docker service ps vote_worker:
ID                  NAME                IMAGE                                          NODE                DESIRED STATE       CURRENT STATE                     ERROR                       PORTS
gmppkl32udq0        vote_worker.1       dockersamples/examplevotingapp_worker:latest   vm5                 Ready               Assigned less than a second ago                               
vdtht17rs5i4         \_ vote_worker.1   dockersamples/examplevotingapp_worker:latest   vm4                 Shutdown            Failed less than a second ago     "task: non-zero exit (1)"   
rjesa8kt2lsi         \_ vote_worker.1   dockersamples/examplevotingapp_worker:latest   vm5                 Shutdown            Failed 6 seconds ago              "task: non-zero exit (1)"   
8e64ktr6536k         \_ vote_worker.1   dockersamples/examplevotingapp_worker:latest   vm4                 Shutdown            Failed 11 seconds ago             "task: non-zero exit (1)"   
u30q26f0uwq7         \_ vote_worker.1   dockersamples/examplevotingapp_worker:latest   vm5                 Shutdown            Failed 17 seconds ago             "task: non-zero exit (1)"   
90x34iwd35b5         \_ vote_worker.1   dockersamples/examplevotingapp_worker:latest   vm4                 Shutdown            Failed 23 seconds ago             "task: non-zero exit (1)"   

===================================================================================================================================================================================================

Com isso, gostaria de saber quem pode me ajudar com este problema, pois não sei mais o que fazer. Percebo que ele tenta reiniciar, mas não consegue deixar em estado Ready.