Stuck in state "Pending"

Hello,

I have just created a docker swarm from scratch, and I am not able to run the visualizer, since its stuck in pending.

$ docker service ls && docker service ps viz
ID                  NAME                MODE                REPLICAS            IMAGE                             PORTS
ylpdkfqjv0o8        viz                 replicated          0/1                 dockersamples/visualizer:latest   *:9090->8080/tcp
ID                  NAME                IMAGE                             NODE                DESIRED STATE       CURRENT STATE           ERROR               PORTS
j7z2l72rlf46        viz.1               dockersamples/visualizer:latest                       Running             Pending 4 minutes ago                       

Docker version:

$ docker version
Client:
 Version:      17.05.0-ce
 API version:  1.29
 Go version:   go1.7.5
 Git commit:   89658be
 Built:        Thu May  4 22:10:54 2017
 OS/Arch:      linux/amd64

Server:
 Version:      17.05.0-ce
 API version:  1.29 (minimum version 1.12)
 Go version:   go1.7.5
 Git commit:   89658be
 Built:        Thu May  4 22:10:54 2017
 OS/Arch:      linux/amd64
 Experimental: false

apt-cache policy docker-engine
docker-engine:
  Installed: 17.05.0~ce-0~ubuntu-xenial
  Candidate: 17.05.0~ce-0~ubuntu-xenial

Same setup on 17.03 works, so I suspect the 17.05 is not supported yet?

[BretFisher]

Yea the problem is the newer node-based healthcheck @ManoMarks I’ve had the same issue when it’s a service, the service eventually fails. The HC always exits 1 so it won’t cause issues in docker run, but you’ll see it marked unhealthy eventually. As a service, it will recreate itself after 30s or so, which may not be noticed until someone looks at docker events or service ps history.

I’ll dig in this weekend and see how to fix healthcheck.

service create --name=viz --publish=8080:8080/tcp --constraint=node.role==manager \
--mount=type=bind,src=/var/run/docker.sock,dst=/var/run/docker.sock dockersamples/visualizer

docker service ps viz
ID                  NAME                IMAGE                             NODE                    DESIRED STATE       CURRENT STATE                 ERROR               PORTS
ooyk54naneyj        viz.1               dockersamples/visualizer:latest   linuxkit-025000000001   Running             Starting 8 seconds ago
nglubswi5cf5         \_ viz.1           dockersamples/visualizer:latest   linuxkit-025000000001   Shutdown            Complete 13 seconds ago
301a9jeiutcy         \_ viz.1           dockersamples/visualizer:latest   linuxkit-025000000001   Shutdown            Complete about a minute ago
kf577tbbc7wc         \_ viz.1           dockersamples/visualizer:latest   linuxkit-025000000001   Shutdown            Complete 3 minutes ago
lnxkrv8i8sza         \_ viz.1           dockersamples/visualizer:latest   linuxkit-025000000001   Shutdown            Complete 31 minutes ago

docker events
2017-12-29T15:59:23.306820374-05:00 container exec_create: /bin/sh -c node healthcheck.js || exit 1 942ee4deecc85f26d2183ea462d88fd221bf363b181cb34801910653d8e0617c (com.docker.swarm.node.id=jpbc36i0269bw5pi9bcfd5eha, com.docker.swarm.service.id=q4b55ufsaz0sxye0yhx4m9ntw, com.docker.swarm.service.name=viz, com.docker.swarm.task=, com.docker.swarm.task.id=ik21gw5zfvm6kg3znc5s3vyxl, com.docker.swarm.task.name=viz.1.ik21gw5zfvm6kg3znc5s3vyxl, image=dockersamples/visualizer:latest@sha256:868b83d5fb2aff628f6dfaeb081b0e0124cdaf06354bf252d92d878b75193f7e, name=viz.1.ik21gw5zfvm6kg3znc5s3vyxl)
2017-12-29T15:59:23.307154557-05:00 container exec_start: /bin/sh -c node healthcheck.js || exit 1 942ee4deecc85f26d2183ea462d88fd221bf363b181cb34801910653d8e0617c (com.docker.swarm.node.id=jpbc36i0269bw5pi9bcfd5eha, com.docker.swarm.service.id=q4b55ufsaz0sxye0yhx4m9ntw, com.docker.swarm.service.name=viz, com.docker.swarm.task=, com.docker.swarm.task.id=ik21gw5zfvm6kg3znc5s3vyxl, com.docker.swarm.task.name=viz.1.ik21gw5zfvm6kg3znc5s3vyxl, image=dockersamples/visualizer:latest@sha256:868b83d5fb2aff628f6dfaeb081b0e0124cdaf06354bf252d92d878b75193f7e, name=viz.1.ik21gw5zfvm6kg3znc5s3vyxl)

[thaJeztah]

@albers see https://github.com/dockersamples/docker-swarm-visualizer/pull/103#issuecomment-354656984