Failed to start docker-registry.service: Unit not found.

[Mark Hamzy]

[hamzy@hamzy-tp-w540 tripleo-quickstart]$ (export VIRTHOST=9.114.219.30; bash quickstart.sh --ansible-debug --release mitaka $VIRTHOST 2>&1 | tee errors3)
...
    "cmd": "set -o pipefail && /home/stack/undercloud-install.sh 2>&1 | awk '{ print strftime(\"%Y-%m-%d %H:%M:%S |\"), $0; fflush(); }' > /home/stack/undercloud_install.log",
    "delta": "0:12:43.902304",
    "end": "2017-04-18 15:29:07.266368",
    "failed": true,
...
[stack@undercloud ~]$ tail /home/stack/undercloud_install.log
...
2017-04-18 15:17:02 | ---> Package docker-distribution.x86_64 0:2.6.0-1.el7 will be obsoleting
2017-04-18 15:17:02 | ---> Package docker-registry.x86_64 0:0.9.1-7.el7 will be obsoleted
...
2017-04-18 15:17:04 | Installing:
2017-04-18 15:17:04 | docker-distribution x86_64 2.6.0-1.el7 extras 3.3 M
2017-04-18 15:17:04 | replacing docker-registry.x86_64 0.9.1-7.el7
...
2017-04-18 15:18:50 | Erasing : docker-registry-0.9.1-7.el7.x86_64 120/157
...
2017-04-18 15:19:48 | Verifying : docker-registry-0.9.1-7.el7.x86_64 155/157
...
Error: Could not start Service[docker-registry]: Execution of '/bin/systemctl start docker-registry' returned 5: Failed to start docker-registry.service: Unit not found.
Error: /Stage[main]/Main/Service[docker-registry]/ensure: change from stopped to running failed: Could not start Service[docker-registry]: Execution of '/bin/systemctl start docker-registry' returned 5: Failed to start docker-registry.service: Unit not found.
...

[stack@undercloud ~]$ sudo rpm -qa | grep docker
python-docker-py-1.10.6-1.el7.noarch
python-docker-pycreds-1.10.6-1.el7.noarch
docker-distribution-2.6.0-1.el7.x86_64
[stack@undercloud ~]$ sudo yum install -y docker-registery
Loaded plugins: fastestmirror, priorities
Loading mirror speeds from cached hostfile
 * base: cosmos.illinois.edu
 * extras: centos.mirrors.tds.net
 * updates: centos.mirrors.tds.net
350 packages excluded due to repository priority protections
No package docker-registery available.
Error: Nothing to do
[stack@undercloud ~]$ cat /etc/yum.repos.d/delorean.repo
[delorean]
name=delorean-python-django-horizon-ce80bb6fec3cb0262728e7ae8b9d695cf832e5bf
baseurl=https://trunk.rdoproject.org/centos7-mitaka/ce/80/ce80bb6fec3cb0262728e7ae8b9d695cf832e5bf_f8fd3d22
enabled=1
gpgcheck=0
priority=1

[David Hill (david-hill-ubisoft)]

I got this with RHEL 7.3 too.

[Emilien Macchi (emilienm)]

This is an automated cleanup. This bug report has been closed because it
is older than 18 months and there is no open code change to fix this.
After this time it is unlikely that the circumstances which lead to
the observed issue can be reproduced.

If you can reproduce the bug, please:
* reopen the bug report (set to status "New")
* AND add the detailed steps to reproduce the issue (if applicable)
* AND leave a comment "CONFIRMED FOR: <RELEASE_NAME>"
  Only still supported release names are valid (FUTURE, PIKE, QUEENS, ROCKY, STEIN).
  Valid example: CONFIRMED FOR: FUTURE