Current post describes in details a sequence of steps which allow to work
with Nova-Docker driver been built based on top commit of master nova-docker
branch, stable/kilo branch is not supposed to be checked out before
running `python setup.py install`. This results several additional efforts.
First one is targeting ability to restart nova-compute service after switching to NovaDocker driver , second one is related with tuning configuration files of glance-api and glance-registry services and make them able for successful restart after adding "docker" to "containers_formats" in glance-api.conf
Follow RDO Kilo setup on Fedora 22 as suggested in http://lxer.com/module/newswire/view/216855/index.html
When done proceed with build NovaDocker driver via master branch
http://github.com/stackforge/nova-docker.git .
Due to https://review.openstack.org/#/c/188339/
( see https://bugs.launchpad.net/nova/+bug/1461217 )
is not packaged with RDO Kilo on Fedora workaround bellow is required to be
able restart openstack-nova-compute after switching to new driver.
Same result may be obtained following https://bugs.launchpad.net/nova/+bug/1461217
via manual update /usr/lib/
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Setting up NovaDocker driver
**********************************
# dnf -y install git docker-io python-six fedora-repos-rawhide
# dnf --enablerepo=rawhide install python-pip python-pbr
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Next
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# git clone http://github.com/stackforge/nova-docker.git
# cd nova-docker
# git branch -v -a
* master 8568e60 Updated from global requirements
remotes/origin/HEAD -> origin/master
remotes/origin/master 8568e60 Updated from global requirements
remotes/origin/stable/icehouse 9045ca4 Fix lockpath for tests
remotes/origin/stable/juno b724e65 Fix tests on stable/juno
remotes/origin/stable/kilo d556444 Do not enable swift/ceilometer/sahara
# python setup.py install
# systemctl start docker
# systemctl enable docker
# chmod 666 /var/run/docker.sock
# mkdir /etc/nova/rootwrap.d
Now update /usr/lib/python2.7/site-packages/novadocker/virt/docker/driver.py
line 326 . Actually, this hack comes from version driver.py generated via stable
branch stable/kilo of nova-docker.git :-
'supported_instances': jsonutils.dumps([
('i686', 'docker', 'lxc'),
('x86_64', 'docker', 'lxc')
])
# python -m py_compile driver.py
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Update nova.conf
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vi /etc/nova/nova.conf
set "compute_driver = novadocker.virt.docker.DockerDriver"
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Add to folder /etc/glance files
**********************************
1. glance-api-paste.ini from
http://docs.openstack.org/kilo/config-reference/content/section_glance-api-paste.conf.html
2. glance-registry-paste.ini from
http://docs.openstack.org/kilo/config-reference/content/section_glance-registry-paste.conf.html
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Update glance-api.conf
************************************
container_formats=ami,ari,aki,bare,ovf,ova,docker
Add to section [glance-store] at the bottom of glance-api.conf
filesystem_store_datadir = /var/lib/glance/images
************************************************
Next, create the docker.filters file:
************************************************
$ vi /etc/nova/rootwrap.d/docker.filters
Insert Lines
# nova-rootwrap command filters for setting up network in the docker driver
# This file should be owned by (and only-writeable by) the root user
[Filters]
# nova/virt/docker/driver.py: 'ln', '-sf', '/var/run/netns/.*'
ln: CommandFilter, /bin/ln, root
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Restart Services
***************************
# systemctl restart openstack-nova-compute
# systemctl status openstack-nova-compute
# systemctl restart openstack-glance-api
# systemctl restart openstack-glance-registry
Testing Ubuntu Vivid docker image
1. Follow https://github.com/tutumcloud/tutum-ubuntu
2. Upload image to glance and launch Nova Docker container
[root@serverFedora22 ~(keystone_admin)]# docker save tutum/ubuntu:vivid | \
glance image-create --is-public=True --container-format=docker \
--disk-format=raw --name tutum/ubuntu:vivid
Launch novadocker instance via dashboard ( in my case floating IP 192.168.1.160 ) password is provided via `docker logs container-id`
[root@serverFedora22 ~(keystone_admin)]# ssh -p 22 root@192.168.1.160
root@192.168.1.160's password:
Last login: Sun Jul 19 14:19:12 2015 from 192.168.1.85
root@instance-00000008:~# echo "nameserver 83.221.202.254" > /etc/resolv.conf
Next test Wordpress NovaDocker container
# docker pull eugeneware/docker-wordpress-nginx
# . keystonerc_admin
# docker save eugeneware/docker-wordpress-nginx:latest | glance image-create --is-public true --container-format docker --disk-format raw --name tutum/wordpress:latest eugeneware/docker-wordpress-nginx:latest
Wordpess Server is available from Office LAN floating IP 192.168.1.161
