bash ubuntu docker docker-swarm docker-swarm-mode

I can't deploy a Docker Swarm service using ubuntu based image

I'm a newbie in Docker/Docker Swarm and I want to create a custom mosquitto service on Swarm. I created a custom mosquitto image lcsf/mosquitto3 from ubuntu:latest, then I added some tools (ping, ipconfig). I can run a single container with docker run and /bin/bash, but I can't create a Swarm service with that image. The service isn't created successfully. There are some outputs below.

Dockerfile:

FROM ubuntu:latest RUN apt-get -y update RUN apt-get install -y mosquitto mosquitto-clients EXPOSE 80 443 1883 8083 8883

Docker service create output:

overall progress: 0 out of 1 tasks 1/1: preparing [========> ] verify: Detected task failure

This output is shown in a loop, then I stop it using ctrl+c, the service is created, but doesn't run, with 0/1 replicas.

Docker service ps mqtt (my custom name) output, there are 3 nodes.

ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS llqr0gysz4bj mqtt.1 lcsf/mosquitto3:latest Docker02 Ready Ready 2 seconds ago kcwfqovyn2mp \_ mqtt.1 lcsf/mosquitto3:latest Docker03 Shutdown Complete 2 seconds ago ruisy599nbt4 \_ mqtt.1 lcsf/mosquitto3:latest Docker03 Shutdown Complete 7 seconds ago xg1lib5x8vt9 \_ mqtt.1 lcsf/mosquitto3:latest Docker02 Shutdown Complete 13 seconds ago fgm9wu25t0lj \_ mqtt.1 lcsf/mosquitto3:latest Docker03 Shutdown Complete 18 seconds ago

That's it, I hope someone can help me. Thanks in advance and I'm sorry 'bout my English and Stack Overflow skills.

UPDATE #1

Output from journalctl -f -n10 command after tying to create the service:

Sep 25 09:01:03 Docker01 dockerd[1230]: time="2017-09-25T09:01:03.692391553-04:00" level=info msg="Node join event for Docker02-a9b6d39043d3/192.168.222.51" Sep 25 09:01:15 Docker01 systemd-udevd[31966]: Could not generate persistent MAC address for veth8e5ebcb: No such file or directory Sep 25 09:01:15 Docker01 systemd-udevd[31967]: Could not generate persistent MAC address for vethaf2978b: No such file or directory Sep 25 09:01:15 Docker01 kernel: docker0: port 1(vethaf2978b) entered blocking state Sep 25 09:01:15 Docker01 kernel: docker0: port 1(vethaf2978b) entered disabled state Sep 25 09:01:15 Docker01 kernel: device vethaf2978b entered promiscuous mode Sep 25 09:01:15 Docker01 kernel: IPv6: ADDRCONF(NETDEV_UP): vethaf2978b: link is not ready Sep 25 09:01:15 Docker01 kernel: eth0: renamed from veth8e5ebcb Sep 25 09:01:15 Docker01 kernel: IPv6: ADDRCONF(NETDEV_CHANGE): vethaf2978b: link becomes ready Sep 25 09:01:15 Docker01 kernel: docker0: port 1(vethaf2978b) entered blocking state Sep 25 09:01:15 Docker01 kernel: docker0: port 1(vethaf2978b) entered forwarding state Sep 25 09:01:15 Docker01 kernel: docker0: port 1(vethaf2978b) entered disabled state Sep 25 09:01:15 Docker01 kernel: veth8e5ebcb: renamed from eth0 Sep 25 09:01:15 Docker01 kernel: docker0: port 1(vethaf2978b) entered disabled state Sep 25 09:01:15 Docker01 kernel: device vethaf2978b left promiscuous mode Sep 25 09:01:15 Docker01 kernel: docker0: port 1(vethaf2978b) entered disabled state Sep 25 09:01:33 Docker01 dockerd[1230]: time="2017-09-25T09:01:33.693508463-04:00" level=info msg="Node join event for Docker03-f71a448c54c7/192.168.222.52" Sep 25 09:01:46 Docker01 dockerd[1230]: time="2017-09-25T09:01:46.541311475-04:00" level=info msg="Node join event for Docker02-a9b6d39043d3/192.168.222.51" Sep 25 09:01:57 Docker01 dockerd[1230]: sync duration of 3.001217113s, expected less than 1s Sep 25 09:02:03 Docker01 dockerd[1230]: time="2017-09-25T09:02:03.694876667-04:00" level=info msg="Node join event for Docker03-f71a448c54c7/192.168.222.52" Sep 25 09:02:33 Docker01 dockerd[1230]: time="2017-09-25T09:02:33.695993259-04:00" level=info msg="Node join event for Docker03-f71a448c54c7/192.168.222.52"

UPDATE #2

This is the output from docker service ps --no-trunc mqtt command

ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS bour693j8jbbrt799fz0nkpwr mqtt.1 lcsf/mosquitto3:latest@sha256:beca44e5f916d08730dd19d9d10dd2dcbd3502866f69316806a63bc094a179a9 Docker03 Ready Ready 4 seconds ago wro6254cs94gkijs8s4v9cvim \_ mqtt.1 lcsf/mosquitto3:latest@sha256:beca44e5f916d08730dd19d9d10dd2dcbd3502866f69316806a63bc094a179a9 Docker03 Shutdown Complete 4 seconds ago 7vgx2mehaxki2p680fesn5jww \_ mqtt.1 lcsf/mosquitto3:latest@sha256:beca44e5f916d08730dd19d9d10dd2dcbd3502866f69316806a63bc094a179a9 Docker03 Shutdown Complete 10 seconds ago 52hv6da6mj72s64po3hze4ham \_ mqtt.1 lcsf/mosquitto3:latest@sha256:beca44e5f916d08730dd19d9d10dd2dcbd3502866f69316806a63bc094a179a9 Docker03 Shutdown Complete 15 seconds ago e3s383vtg0idw8ryxwh2y3gmu \_ mqtt.1 lcsf/mosquitto3:latest@sha256:beca44e5f916d08730dd19d9d10dd2dcbd3502866f69316806a63bc094a179a9 Docker03 Shutdown Complete 21 seconds ago 90i30f3riwka8xs187xi7uxt2 mqtt.2 lcsf/mosquitto3:latest@sha256:beca44e5f916d08730dd19d9d10dd2dcbd3502866f69316806a63bc094a179a9 Docker02 Ready Ready less than a second ago p2lzd04tinjdjkwkr26umlh9a \_ mqtt.2 lcsf/mosquitto3:latest@sha256:beca44e5f916d08730dd19d9d10dd2dcbd3502866f69316806a63bc094a179a9 Docker02 Shutdown Complete less than a second ago q8awoj8uu7gad6hvonhl4t9f1 \_ mqtt.2 lcsf/mosquitto3:latest@sha256:beca44e5f916d08730dd19d9d10dd2dcbd3502866f69316806a63bc094a179a9 Docker02 Shutdown Complete 6 seconds ago 1fuqt0et7vw1vntd8p62jiiut \_ mqtt.2 lcsf/mosquitto3:latest@sha256:beca44e5f916d08730dd19d9d10dd2dcbd3502866f69316806a63bc094a179a9 Docker02 Shutdown Complete 11 seconds ago k3vlusok792zw0v3yddxqlmg3 \_ mqtt.2 lcsf/mosquitto3:latest@sha256:beca44e5f916d08730dd19d9d10dd2dcbd3502866f69316806a63bc094a179a9 Docker02 Shutdown Complete 17 seconds ago i4tywshqv4pxsyz5tz0z0evkz mqtt.3 lcsf/mosquitto3:latest@sha256:beca44e5f916d08730dd19d9d10dd2dcbd3502866f69316806a63bc094a179a9 Docker01 Ready Ready less than a second ago 44ee4iqqpkeome4lokx9ykmbo \_ mqtt.3 lcsf/mosquitto3:latest@sha256:beca44e5f916d08730dd19d9d10dd2dcbd3502866f69316806a63bc094a179a9 Docker01 Shutdown Complete less than a second ago kdx273e9fkpqkafztif1dz35q \_ mqtt.3 lcsf/mosquitto3:latest@sha256:beca44e5f916d08730dd19d9d10dd2dcbd3502866f69316806a63bc094a179a9 Docker01 Shutdown Complete 6 seconds ago l2oewfnwbkia94r6rifbcfi4h \_ mqtt.3 lcsf/mosquitto3:latest@sha256:beca44e5f916d08730dd19d9d10dd2dcbd3502866f69316806a63bc094a179a9 Docker01 Shutdown Complete 11 seconds ago dyekgkd0swsualssw4dtvk681 \_ mqtt.3 lcsf/mosquitto3:latest@sha256:beca44e5f916d08730dd19d9d10dd2dcbd3502866f69316806a63bc094a179a9 Docker01 Shutdown Complete 17 seconds ago

Solution

Your issue is your dockerfile. You are running bash command on a swarm service. You need to run a command which doesn't exist

FROM ubuntu:latest
RUN apt-get -y update
RUN apt-get install -y mosquitto mosquitto-clients
EXPOSE 80 443 1883 8083 8883
CMD ["tail", "-f", "/dev/null"]

This is a infinite tail command, which will make sure your container doesn't exit. Run a command in image that is not looking for user input when deploying to swarm.