在Debian上安装docker-ce时出错

Question

我在服务器上安装docker时遇到了问题：

    user@server:/# apt-get install docker-ce
    Reading package lists... Done
    Building dependency tree
    Reading state information... Done
    The following NEW packages will be installed:
      docker-ce
    0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
    Need to get 0 B/30.2 MB of archives.
    After this operation, 152 MB of additional disk space will be used.
    debconf: unable to initialize frontend: Dialog
    debconf: (No usable dialog-like program is installed, so the dialog based frontend cannot be used. at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 76, <> line 1.)
    debconf: falling back to frontend: Readline
    Selecting previously unselected package docker-ce.
    (Reading database ... 25607 files and directories currently installed.)
    Preparing to unpack .../docker-ce_17.12.0~ce-0~debian_amd64.deb ...
    Unpacking docker-ce (17.12.0~ce-0~debian) ...
    Processing triggers for systemd (215-17+deb8u7) ...
    Setting up docker-ce (17.12.0~ce-0~debian) ...
    Job for docker.service failed. See 'systemctl status docker.service' and 'journalctl -xn' for details.
    invoke-rc.d: initscript docker, action "start" failed.
    dpkg: error processing package docker-ce (--configure):
     subprocess installed post-installation script returned error exit status 1
    Processing triggers for systemd (215-17+deb8u7) ...
    Errors were encountered while processing:
     docker-ce
    E: Sub-process /usr/bin/dpkg returned an error code (1)
    user@server:/# journalctl -xn
    -- Logs begin at Thu 2018-02-15 11:45:24 CET, end at Thu 2018-02-15 12:05:46 CET. --
    Feb 15 12:05:46 git systemd[1]: Unit docker.service entered failed state.
    Feb 15 12:05:46 git systemd[1]: docker.service holdoff time over, scheduling restart.
    Feb 15 12:05:46 git systemd[1]: Stopping Docker Application Container Engine...
    -- Subject: Unit docker.service has begun shutting down
    -- Defined-By: systemd
    -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
    --
    -- Unit docker.service has begun shutting down.
    Feb 15 12:05:46 git systemd[1]: Stopping Docker Socket for the API.
    -- Subject: Unit docker.socket has begun shutting down
    -- Defined-By: systemd
    -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
    --
    -- Unit docker.socket has begun shutting down.
    Feb 15 12:05:46 git systemd[1]: Starting Docker Socket for the API.
    -- Subject: Unit docker.socket has begun with start-up
    -- Defined-By: systemd
    -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
    --
    -- Unit docker.socket has begun starting up.
    Feb 15 12:05:46 git systemd[1]: Listening on Docker Socket for the API.
    -- Subject: Unit docker.socket has finished start-up
    -- Defined-By: systemd
    -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
    --
    -- Unit docker.socket has finished starting up.
    --
    -- The start-up result is done.
    Feb 15 12:05:46 git systemd[1]: Starting Docker Application Container Engine...
    -- Subject: Unit docker.service has begun with start-up
    -- Defined-By: systemd
    -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
    --
    -- Unit docker.service has begun starting up.
    Feb 15 12:05:46 git systemd[1]: docker.service start request repeated too quickly, refusing to start.
    Feb 15 12:05:46 git systemd[1]: Failed to start Docker Application Container Engine.
    -- Subject: Unit docker.service has failed
    -- Defined-By: systemd
    -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
    --
    -- Unit docker.service has failed.
    --
    -- The result is failed.
    Feb 15 12:05:46 git systemd[1]: Unit docker.service entered failed state.

SysInfo：

PRETTY_NAME="Debian GNU/Linux 8 (jessie)"
NAME="Debian GNU/Linux"
VERSION_ID="8"
VERSION="8 (jessie)"
ID=debian

内核：

2.6.32-042stab127.2

Answer 1

在码头安装文件中，所需的最小内核为3.10，您正在使用Debian 8运行2.6.32-042歧途127.2，而Debian 8通常运行3.16。

它似乎是一个OpenVZ内核。从主页面来看，它已经是一种基于容器的虚拟化。所以这意味着在一个容器中运行一个容器。虽然这是可能的，但也有一些限制，特别是对于像Docker这样的用于运行和控制容器的应用程序。

这两个原因使得环境无法运行Docker。您应该尝试使用更常见的虚拟化来使用提供程序。如果您可以选择内核(即使是在提供的列表中)或更改内核，这应该是一个合适的选择。当然，裸金属也是一个合适的选择。