Commit "vifs: replace 'ifconfig' usage with 'ip'" disables floating IPs for nova-docker containers created via NovaDocker driver

[Boris Derzhavets]

I did build NovaDocker driver for following commits:-

a1e3e3e2d1032649397fb8281de7c7360ce0ad31("Fix build breaks by using instance.flavor where appropriate")
8760c73423dce9a47a6a67b32da016edd85cde86 ("Merge "Remove default cmd setting for docker image")
9d06520645f28d96ef905a709f8ff0c27842b58b ("vifs: replace 'ifconfig' usage with 'ip'")

$ git clone http://github.com/stackforge/nova-docker.git
$ cd nova-docker
$ git checkout commit-number

Applying patch prepared via Commit "Sync oslo imports to be in line with Nova trunk"
Commit 333656f4ad0e2c06f11eb8244bd6796110b9931d
to make NovaDocker driver loadable by stack.sh

$ sudo pip install .

First and second commits allowed me to work with floating IPs assigned to nova-docker instances been launched after stack.sh
completion. The third already didn't. My local.conf bellow :-

[[local|localrc]]
HOST_IP=192.169.142.55
ADMIN_PASSWORD=secret
MYSQL_PASSWORD=secret
RABBIT_PASSWORD=secret
SERVICE_PASSWORD=secret
FLOATING_RANGE=192.168.10.0/24
FLAT_INTERFACE=eth0
Q_FLOATING_ALLOCATION_POOL=start=192.168.10.150,end=192.168.10.254
PUBLIC_NETWORK_GATEWAY=192.168.10.15
SERVICE_TOKEN=super-secret-admin-token
VIRT_DRIVER=novadocker.virt.docker.DockerDriver

DEST=$HOME/stack
SERVICE_DIR=$DEST/status
DATA_DIR=$DEST/data
LOGFILE=$DEST/logs/stack.sh.log
LOGDIR=$DEST/logs

# The default fixed range (10.0.0.0/24) conflicted with an address
# range I was using locally.
FIXED_RANGE=10.254.1.0/24
NETWORK_GATEWAY=10.254.1.1

# Services
disable_service n-net
enable_service q-svc
enable_service q-agt
enable_service q-dhcp
enable_service q-l3
enable_service q-meta
enable_service horizon
disable_service tempest

# Introduce glance to docker images
[[post-config|$GLANCE_API_CONF]]
[DEFAULT]
container_formats=ami,ari,aki,bare,ovf,ova,docker

# Configure nova to use the nova-docker driver
[[post-config|$NOVA_CONF]]
[DEFAULT]
compute_driver=novadocker.virt.docker.DockerDriver

[Boris Derzhavets (bderzhavets)]

Workaround for issue :-

Install working NovaDocker driver (network alive, e.g. floating IPs) on Ubuntu 14.04.2
via ./stack.sh

$ git clone http://github.com/stackforge/nova-docker.git
$ cd nova-docker
$ git revert 9d06520645f28d96ef905a709f8ff0c27842b58b
$ sudo pip install .

[Boris Derzhavets (bderzhavets)]

This patch allows to build Nova Docker driver with network enabled ( floating IPs are working)

[Boris Derzhavets (bderzhavets)]

Provided patch updates novadocker/virt/docker/vifs.py, actually adding to 9d06520645f28d96ef905a709f8ff0c27842b58b missing lines
+ utils.execute('ip', 'netns', 'exec', container_id, 'ip', 'link',
+ 'set', if_remote_name,'up',run_as_root=True)

[Boris Derzhavets (bderzhavets)]

Patch in git format

[Boris Derzhavets (bderzhavets)]

Patch merged upstream https://review.openstack.org/#/c/163022/