Set up Two Node RDO Juno ML2&OVS&VXLAN Cluster runnig Docker Hypervisor on Compute Node (CentOS 7, kernel 3.10.0-123.20.1.el7.x86_64)

It’s quite obvious that Nova-Docker driver set up success for real application is important to get on Compute Nodes . It’s nice when everything works on AIO Juno host or Controller, but  just as demonstration. Might be I did something wrong , might be due to some other reason but kernel version 3.10.0-123.20.1.el7.x86_64 seems to be the first brings  success on RDO Juno Compute nodes.

Follow http://lxer.com/module/newswire/view/209851/index.html  up to section

“Set up Nova-Docker on Controller&&Network Node”

***************************************************
Set up  Nova-Docker Driver on Compute Node
***************************************************

# yum install python-pbr
# yum install docker-io -y
# git clone https://github.com/stackforge/nova-docker
# cd nova-docker
# git checkout stable/juno
# python setup.py install
# systemctl start docker
# systemctl enable docker
# chmod 660  /var/run/docker.sock
#  mkdir /etc/nova/rootwrap.d

************************************************
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

*****************************************
Add line /etc/glance/glance-api.conf
*****************************************
container_formats=ami,ari,aki,bare,ovf,ova,docker
:wq

******************************
Update nova.conf
******************************

vi /etc/nova/nova.conf

set “compute_driver = novadocker.virt.docker.DockerDriver”

************************
Restart Services
************************

usermod -G docker nova

systemctl restart openstack-nova-compute (on Compute)
systemctl status openstack-nova-compute
systemctl restart openstack-glance-api (on Controller&&Network )

At this point `scp  /root/keystonerc_admin compute:/root`  from Controller to Compute Node

*************************************************************
Test installation Nova-Docker Driver on Compute Node (RDO Juno , CentOS 7,kernel 3.10.0-123.20.1.el7.x86_64 )
**************************************************************

*******************************************

Setup Ubuntu 14.04 with SSH access

*******************************************

First on Compute node

# docker pull rastasheep/ubuntu-sshd:14.04

# . keystonerc_admin

# docker save rastasheep/ubuntu-sshd:14.04 | glance image-create –is-public=True   –container-format=docker –disk-format=raw –name rastasheep/ubuntu-sshd:14.04

Second on Controller node launch Nova-Docker container , running on Compute via dashboard and assign floating IP address

Pic15          Pic16

 

*********************************************
Verify `docker ps ` on Compute Node
*********************************************

[root@juno1dev ~]# ssh 192.168.1.137

Last login: Fri Feb  6 15:38:49 2015 from juno1dev.localdomain

[root@juno2dev ~]# docker ps

CONTAINER ID        IMAGE                          COMMAND               CREATED             STATUS              PORTS               NAMES

ef23d030e35a        rastasheep/ubuntu-sshd:14.04   “/usr/sbin/sshd -D”   7 hours ago         Up 6 minutes                            nova-211bcb54-35ba-4f0a-a150-7e73546d8f46

[root@juno2dev ~]# ip netns

ef23d030e35af63c17698d1f4c6f7d8023c29455e9dff0288ce224657828993a
ca9aa6cb527f2302985817d3410a99c6f406f4820ed6d3f62485781d50f16590
fea73a69337334b36625e78f9a124e19bf956c73b34453f1994575b667e7401b
58834d3bbea1bffa368724527199d73d0d6fde74fa5d24de9cca41c29f978e31
********************************
On Controller run :-
********************************

[root@juno1dev ~]# ssh root@192.168.1.173
root@192.168.1.173’s password:
Last login: Fri Feb  6 12:11:19 2015 from 192.168.1.127

root@instance-0000002b:~# apt-get update

Ign http://archive.ubuntu.com trusty InRelease
Ign http://archive.ubuntu.com trusty-updates InRelease
Ign http://archive.ubuntu.com trusty-security InRelease
Hit http://archive.ubuntu.com trusty Release.gpg
Get:1 http://archive.ubuntu.com trusty-updates Release.gpg [933 B]
Get:2 http://archive.ubuntu.com trusty-security Release.gpg [933 B]
Hit http://archive.ubuntu.com trusty Release
Get:3 http://archive.ubuntu.com trusty-updates Release [62.0 kB]
Get:4 http://archive.ubuntu.com trusty-security Release [62.0 kB]
Hit http://archive.ubuntu.com trusty/main Sources
Hit http://archive.ubuntu.com trusty/restricted Sources
Hit http://archive.ubuntu.com trusty/universe Sources
Hit http://archive.ubuntu.com trusty/main amd64 Packages
Hit http://archive.ubuntu.com trusty/restricted amd64 Packages
Hit http://archive.ubuntu.com trusty/universe amd64 Packages
Get:5 http://archive.ubuntu.com trusty-updates/main Sources [208 kB]
Get:6 http://archive.ubuntu.com trusty-updates/restricted Sources [1874 B]
Get:7 http://archive.ubuntu.com trusty-updates/universe Sources [124 kB]
Get:8 http://archive.ubuntu.com trusty-updates/main amd64 Packages [524 kB]
Get:9 http://archive.ubuntu.com trusty-updates/restricted amd64 Packages [14.8 kB]
Get:10 http://archive.ubuntu.com trusty-updates/universe amd64 Packages [318 kB]
Get:11 http://archive.ubuntu.com trusty-security/main Sources [79.8 kB]
Get:12 http://archive.ubuntu.com trusty-security/restricted Sources [1874 B]
Get:13 http://archive.ubuntu.com trusty-security/universe Sources [19.1 kB]
Get:14 http://archive.ubuntu.com trusty-security/main amd64 Packages [251 kB]
Get:15 http://archive.ubuntu.com trusty-security/restricted amd64 Packages [14.8 kB]
Get:16 http://archive.ubuntu.com trusty-security/universe amd64 Packages [110 kB]
Fetched 1793 kB in 9s (199 kB/s)
Reading package lists… Done

If network operations like `apt-get install … ` run afterwards with no problems

Nova-Docker driver is installed  and works on Compute Node

**************************************************************************************
Finally I’ve set up openstack-nova-compute on Controller ,  to run several instances with  Qemu/Libvirt driver :-
**************************************************************************************

Pic17          Pic18

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