bash - 我无法使用基于 ubuntu 的镜像部署 Docker Swarm 服务

Question

我是 Docker/Docker Swarm 的新手，我想在 Swarm 上创建自定义 mosquitto 服务。我创建了一个自定义蚊子图像 lcsf/mosquitto3来自 ubuntu:latest，然后我添加了一些工具(ping、ipconfig)。我可以使用 docker run 运行单个容器和/bin/bash ，但我无法使用该图像创建 Swarm 服务。服务未创建成功。下面有一些输出。

Dockerfile:

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

Docker 服务创建输出:

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

此输出显示在循环中，然后我使用 ctrl+c 停止它，服务已创建，但未运行，具有 0/1 副本。

Docker服务ps mqtt(我的自定义名称)输出，有3个节点。

ID NAME IMAGE NODE<br/> 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

就是这样，希望有人能帮助我。提前致谢，对于我的英语和 Stack Overflow 技能，我深表歉意。

更新#1

来自journalctl -f -n10的输出绑定(bind)创建服务后的命令:

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"

更新#2

这是 docker service ps --no-trunc mqtt 的输出命令

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

Answer 1

你的问题是你的dockerfile。您正在 swarm 服务上运行 bash 命令。您需要运行一个不存在的命令

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"]

这是一个无限尾命令，它将确保您的容器不会退出。在部署到 swarm 时不查找用户输入的镜像中运行命令。