install local docker registry on centos 7 - docker

Question

I am trying to install a local docker.io registry on a CentOS 7
machine following the instructions here:
https://github.com/docker/docker-registry#quick-start
I ran (EDITED, just to show docker is running):
# service docker restart && cd && docker run -p 5000:5000 registry
After a few minutes looking at the prompt, I got a bunch of errors like this:
[...]
OSError: [Errno 2] No such file or directory: './registry._setup_database.lock'
[2015-03-06 16:39:11 +0000] [13] [INFO] Worker exiting (pid: 13)
[2015-03-06 16:39:11 +0000] [14] [INFO] Worker exiting (pid: 14)
Traceback (most recent call last):
File "/usr/local/bin/gunicorn", line 11, in <module>
sys.exit(run())
File "/usr/local/lib/python2.7/dist-packages/gunicorn/app/wsgiapp.py", line 74, in run
WSGIApplication("%(prog)s [OPTIONS] [APP_MODULE]").run()
File "/usr/local/lib/python2.7/dist-packages/gunicorn/app/base.py", line 185, in run
super(Application, self).run()
File "/usr/local/lib/python2.7/dist-packages/gunicorn/app/base.py", line 71, in run
Arbiter(self).run()
File "/usr/local/lib/python2.7/dist-packages/gunicorn/arbiter.py", line 196, in run
self.halt(reason=inst.reason, exit_status=inst.exit_status)
File "/usr/local/lib/python2.7/dist-packages/gunicorn/arbiter.py", line 292, in halt
self.stop()
File "/usr/local/lib/python2.7/dist-packages/gunicorn/arbiter.py", line 343, in stop
time.sleep(0.1)
File "/usr/local/lib/python2.7/dist-packages/gunicorn/arbiter.py", line 209, in handle_chld
self.reap_workers()
File "/usr/local/lib/python2.7/dist-packages/gunicorn/arbiter.py", line 459, in reap_workers
raise HaltServer(reason, self.WORKER_BOOT_ERROR)
gunicorn.errors.HaltServer: <HaltServer 'Worker failed to boot.' 3>
EDITED:
Details of the system:
docker --version
Docker version 1.3.2, build 39fa2fa/1.3.2
System:
cat /etc/centos-release
CentOS Linux release 7.0.1406 (Core)
uname -a
Linux denis1 3.10.0-123.20.1.el7.x86_64 #1 SMP Thu Jan 29 18:05:33 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
Any ideas what I may be doing wrong?
Where should this file be? './registry._setup_database.lock'
EDITED2:
If I try it on my Ubuntu 14.10 laptop, where I installed a new version of docker via a ppa, then it works:
# Upgraded to docker 1.5 via a ppa package in my Ubuntu laptop:
sudo add-apt-repository ppa:docker-maint/testing
sudo apt-get update
sudo apt-get install docker.io
# pull registry latest
sudo docker pull registry:latest
latest: Pulling from registry
fa4fd76b09ce: Downloading 6.931 MB/197.2 MB 3m10s
1c8294cc5160: Download complete
117ee323aaa9: Download complete
fa4fd76b09ce: Pull complete
fa4fd76b09ce: Download complete
1c8294cc5160: Download complete
117ee323aaa9: Download complete
2d24f826cb16: Download complete
777c3edddace: Download complete
f06997673ad7: Download complete
7eafad9a1f16: Download complete
daa8104aee86: Download complete
418dcd975ba2: Download complete
30bff528d188: Download complete
a4f468439f7f: Download complete
e5a8e33139de: Download complete
024a18254446: Download complete
a68f5599e08a: Download complete
511136ea3c5a: Download complete
Status: Downloaded newer image for registry:latest
Any ideas what should I do to get the same result on my CentOS server?
Is there a more recent docker client I can get for CentOS 6 via yum install?

Answer 1

Disable SELINUX and FireWalld.
SELINUX is preventing execution of certain commands as SUDO which is somehow inhibiting behavior.
Also check FireWallD as well.
Neither of upgrade of docker version or "latest" tag etc will solve your problem, I tried them all... it has to do with SELINUX and/or FireWallD... disable both if you can.
I upgraded docker version to 1.5.0 by adding this to yum.repos.d:
[virt7-testing]
name=virt7-testing
baseurl=http://cbs.centos.org/repos/virt7-testing/x86_64/os/
enabled=1
gpgcheck=0

Answer 2

I feel like we can summarize things like this:
The documentation for 'registry' says it only supports docker 1.5. You're running 1.3 and there's a pretty big jump between these.
Supported Docker versions
This image is officially supported on Docker version 1.5.0.
Support for older versions (down to 1.0) is provided on a best-effort
basis.
On CentOS 6.5, you can yum install docker from EPEL (Docker instructions) and get Docker 1.5. Earlier than 6.5, you must yum install docker-io and it appears that 1.4 is the latest available version from EPEL.
In my experience, Docker's support on RedHat-family systems has been poorer then on Debian-family, but this gap has closed in the most recent versions of RH and Docker.