Sonata demo deployment failed about son-install

[felipevicens]

Hello @tarunsarkar, This seems an error from the glance that cannot download the image from the URL that you are using.

I can suggest to you that pre-upload the image to glance and grab the checksum of the image and set directly in the descriptor to avoid the long waits until the image is download from an external server.

The procedure that the Infrastructure Abstraction use to find an image is the following:
First check if the md5 in the descriptor matches to the glance image list checksums.
Second IA searches by name. (In your case the name is eu.sonata-nfv_vtc-vnf_0.1_vdu01)
Third IA tries to download the image from the source.

[tarunsarkar]

Hello @felipevicens , Thank you for your response. I was trying with demo user and it has no access to create a container in glance. So i tried with admin user and it worked. But I got another error in OpenStack (devstack heat) it says
No valid host was found.There are not enough hosts available.
Do you have any idea how to fix this issue in openstack (Devstack). Anyone knows how to restart a service in Devstack.
I tried below command (https://docs.openstack.org/devstack/latest/systemd.html)
sudo systemctl restart devstack@*
it does not work.

[felipevicens]

Hello @tarunsarkar, this is one of the most general error that you can get from OpenStack. I'm afraid, it says nothing to us. You should check deeply the nova, neutron, glance, heat logs in order to get more information.

To debug it, you can try to deploy a VM manually with the same characteristics of the VNF descriptors (Same RAM, CPU and Disk) and see if you can do it with DevStack. Another option is changing DevStack by other OpenStack all-in-one version like RDO.

[tarunsarkar]

hello @felipevicens, Yes I got the similar error while just trying to instantiate a VM instance with the flavor "ds1G" (1 CPU,1GB RAM, 10GB disk) i.e with same VNF description. But I could successfully instantiate VM using the flavor "m1.tiny" (1 CPU,512 MB RAM, 1GB disk). So I modified the VNF descriptor and tried to deploy the service but the change does not impact it is still taking the flavor "ds1G". Does the VNF description take input in MB?

Thank you!
Best Regards,
Tarun

[tarunsarkar]

hello @felipevicens ,

It seems I could deploy a service but it is failing at the end with an error from Sonata as follow:
"NAP not specified, using default ones from default config file"
Do you have any clue about this error.

Best Regards,
Tarun

[felipevicens]

Hello @tarunsarkar, I think the issue is not the NAP itself. For SFC you need an SFC agent installed in the OpenStack server. The installation guide is detailed here

You can avoid the use of this agent if you don't use the forwarding graph section in the descriptors.

[tarunsarkar]

I build the wim-adaptor and vim-adaptor and running them on the server where my OpenStack is running.
Still got the same error.

Do I need to run them on the server where the Sonata running?
Thank you!
Best Regards,
Tarun

[felipevicens]

Hello @tarunsarkar you are getting a connection refuse from SONATA SP to the SFC agent that should be installed in OpenStack node. Do you have installed the SFC agent?

[tarunsarkar]

Hello @felipevicens , After installing SFC agent also the I could not deploy a service including forwarding graph (the same error), though I can deploy a service successfully without forwarding graphs. I have installed SFC agent in my openstack devstack environment. and I followed the steps specified here.
https://wiki.openstack.org/wiki/Neutron/ServiceInsertionAndChaining

I added the highlighted line in my local.conf and ran unstack.sh and stack.sh.
Then after the stack.sh execution I checked that networking_sfc is installed.

I also checked in the neutron.conf and found the netorking_sfc services are enabled.

Is there any way to check if the networking_sfc services are running.

I am also attaching my local.conf for your reference you may suggest if anything I am doing wrong.
local.conf.txt

Thanks!
Best Regards,
Tarun

[stkolome]

Hello Tarun,

The SFC Agent supported by SONATA is not the default one from Openstack devstack. We are using another agent developed in the project using OVS inside a custom deployed Openstack. In the following link you can find more info: https://github.com/sonata-nfv/son-sp-infrabstract/tree/master/vim-adaptor/utils

Unfortunately, SONATA doesn't support the default agent as of now, although that may change soon.

Best Regards,
Stavros