kolla deploy openstack all in one fail

[ningyougang]

when i use 'kolla-ansible prechecks cmd',it will report fail log:
TASK: [prechecks | Checking if 'MountFlags' in /lib/systemd/system/docker.service is set to 'shared'] ***
failed: [localhost] => {"changed": false, "cmd": ["cat", "/lib/systemd/system/docker.service"], "delta": "0:00:00.003462", "end": "2016-03-31 09:21:59.693080", "failed": true, "failed_when_result": true, "rc": 0, "start": "2016-03-31 09:21:59.689618", "stdout_lines": ["[Unit]", "Description=Docker Application Container Engine", "Documentation=https://docs.docker.com", "After=network.target docker.socket", "Requires=docker.socket", "", "[Service]", "Type=notify", "ExecStart=/usr/bin/docker daemon -H fd://", "MountFlags=slave", "LimitNOFILE=1048576", "LimitNPROC=1048576", "LimitCORE=infinity", "TimeoutStartSec=0", "", "[Install]", "WantedBy=multi-user.target"], "warnings": []}
stdout: [Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network.target docker.socket
Requires=docker.socket

[Service]
Type=notify
ExecStart=/usr/bin/docker daemon -H fd://
MountFlags=slave
LimitNOFILE=1048576
LimitNPROC=1048576
LimitCORE=infinity
TimeoutStartSec=0

[Install]
WantedBy=multi-user.target

FATAL: all hosts have already failed -- aborting

PLAY RECAP ********************************************************************
to retry, use: --limit @/root/prechecks.retry

localhost : ok=59 changed=0 unreachable=0 failed=1

Command failed ansible-playbook -i /usr/share/kolla/ansible/inventory/all-in-one -e @/etc/kolla/globals.yml -e @/etc/kolla/passwords.yml /usr/share/kolla/ansible/prechecks.yml

What's the reason? and how can resolve it?

[ningyougang]

Docker 现在使用了 shared mount 功能，默认没有打开，需要手动修改 Docker 启动文件 /usr/lib/systemd/system/docker.service 的 MountFlags sed -i 's/MountFlags.*/MountFlags=shared/' /usr/lib/systemd/system/docker.service 已解决