Redhat-R4.0-provisioning vrouter manually using contrail-compute-setup removed interface file while creating vhost0

[shajuvk]

Issue1:
========
contrail-compute-setup script (https://github.com/Juniper/contrail-provisioning/blob/R4.0/contrail_provisioning/compute/network.py) for provisioning vrouter removing interface file and saved the interface file as .rpmsave.

ex: My setup has an interface eno1 which need to be used for vhost0, while creating vhost0, instead of setting it as static on ifcfg-eno1, this file is moved as ifcfg-eno1.rpmsave (/etc/sysconfig/interface-script/ifcfg-eno1.rpmsave) . While rebooting the box vhost0 and eno1 also receiving ip. If I move the ifcfg-eno1.rpmsave from sysconfig path to root directory. This works fine.

Ubuntu this works but for rpm (redhat)provisioning not correct.

Issue2:
=======
gateway entry was missing for ifcfg-vhost0 interface file. vrouter-agent.conf missing gateway entry.

[root@a5s8 ~]# cat ifcfg-eno1.rpmsave
# Generated by dracut initrd
NAME="eno1"
DEVICE="eno1"
ONBOOT=yes
NETBOOT=yes
UUID="690d6194-e3bb-4d1e-8b7b-b5f60ab7f549"
IPV6INIT=yes
BOOTPROTO=dhcp
TYPE=Ethernet

[root@a5s8 ~]# cat /etc/sysconfig/network-scripts/ifcfg-vhost0
#Contrail vhost0
DEVICE=vhost0
ONBOOT=yes
BOOTPROTO=none
IPV6INIT=no
USERCTL=yes
IPADDR=10.84.14.8
NETMASK=255.255.255.0
GATEWAY=10.84.14.254 ==============> this was missing
NM_CONTROLLED=no
#NETWORK MANAGER BUG WORKAROUND
SUBCHANNELS=1,2,3
DNS1=10.84.5.100
DNS2=172.21.200.60
DNS3=172.29.131.60
DNS4=8.8.8.8
DOMAIN="contrail.juniper.net juniper.net jnpr.net"

[Kumar Harsh (hkumar)]

Please provide information on how provisioning is done .

-- harsh

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/32884
Submitter: Kumar Harsh (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/32968
Submitter: Kumar Harsh (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/32884
Submitter: Kumar Harsh (<email address hidden>)

[Kumar Harsh (hkumar)]

For part 2 of the bug :

Gateway for a single network case ( no data , management separation ) gateway is taken from

 netstat -rn output .

Since gateway was not set seems like a setup problem, it is handled well in provisioning script .

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/32968
Submitter: Kumar Harsh (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/32884
Committed: http://github.com/Juniper/contrail-controller/commit/691862c278cdc34e0210a441e5999640164067fa
Submitter: Zuul (<email address hidden>)
Branch: master

commit 691862c278cdc34e0210a441e5999640164067fa
Author: Kumar Harsh <email address hidden>
Date: Fri Jul 21 15:29:10 2017 +0530

Save interface config file backup as orig.ifcfg for redhat

Change-Id: Ib70afe13eee216206d181503c4cfd4a982adbd29
Closes-Bug: #1692993

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/32968
Committed: http://github.com/Juniper/contrail-controller/commit/94bf5d2ea5b0953ddf369a5ae077c2dfe918ab0b
Submitter: Zuul (<email address hidden>)
Branch: R4.0

commit 94bf5d2ea5b0953ddf369a5ae077c2dfe918ab0b
Author: Kumar Harsh <email address hidden>
Date: Fri Jul 21 15:29:10 2017 +0530

Save interface config file backup as orig.ifcfg for redhat

Change-Id: Ib70afe13eee216206d181503c4cfd4a982adbd29
Closes-Bug: #1692993