A Full Guideline Needed For Creating VNF

Hi Harry,

Thanks for your input. We don't have one comprehensive document like that. However we recently added [1] to describe better the syntax and semantics of VNFD TOSCA YAML template including images. If you find anything lacking in this doc, please open a bug [2] and we will fix it.

Log file location is some thing that differs depending on the distros & the installer. For devstack, tacker logs are typically in /opt/stack/logs/tacker.log.

- Sridhar

[1] http://docs.openstack.org/developer/tacker/devref/vnfd_template_description.html
[2] https://bugs.launchpad.net/tacker/

Hi Sridhar,

Thank you very much for the quick response.

I just installed devstack and Tacker followed the guideline,

Tacker Installation using stable/liberty

1) Pull devstack repo for stable liberty branch

git clone -b stable/liberty https://github.com/openstack-dev/devstack

2) A sample local.conf is placed at
https://raw.githubusercontent.com/openstack/tacker/stable/liberty/devstack/samples/local.conf.example.
Copy the local.conf to devstack root directory and customize it based on
your environment settings. Update the HOST_IP to the IP address of VM or
host where you are running tacker.

3) Make sure the local.conf "enable_plugin tacker" is pointing to
stable/liberty,

enable_plugin tacker https://github.com/openstack/tacker stable/liberty

4) Run stack.sh

I then created vnf successfully as following, but no VM Instance was
created for me. May I ask what could be the problem?

Regards,

Harry

stack@vim-222:~/devstack$ tacker vnfd-create --vnfd-file
tosca-vnfd-image.yaml --name cirros-vnfd-vdu

Created a new vnfd:

+---------------+------------------------------------------------------------------------+

| Field | Value
             |

+---------------+------------------------------------------------------------------------+

| description | Demo example with auto image creation
             |

| id | 7918e2d6-d0e1-4f0a-b7ad-31e509ddc2cb
              |

| infra_driver | heat
              |

| mgmt_driver | noop
              |

| name | cirros-vnfd-vdu
             |

| service_types | {"service_type": "vnfd", "id":
"6e339adb-fccf-431a-b5b5-cd51352cdbf4"} |

| tenant_id | 4b91fa25521d4255a7201e81918420d2
              |

+---------------+------------------------------------------------------------------------+

stack@vim-222:~/devstack$ tacker vnf-create --name my_tosca_vnf --vnfd-id
7918e2d6-d0e1-4f0a-b7ad-31e509ddc2cb

Created a new vnf:

+-------------+---------------------------------------+

| Field | Value |

+-------------+---------------------------------------+

| description | Demo example with auto image creation |

| id | 8b350f65-f037-49f0-8a54-6e7c7c8710ab |

| instance_id | 78f8cbce-03ac-4270-837f-5afd708eff8d |

| mgmt_url | |

| name | my_tosca_vnf |

| status | PENDING_CREATE |

| tenant_id | 4b91fa25521d4255a7201e81918420d2 |

| vnfd_id | 7918e2d6-d0e1-4f0a-b7ad-31e509ddc2cb |

+-------------+---------------------------------------+

stack@vim-222:~/devstack$ tacker vnf-list

+--------------------------------------+--------------+---------------------------------------+----------+--------+

| id | name | description
                  | mgmt_url | status |

+--------------------------------------+--------------+---------------------------------------+----------+--------+

| 8b350f65-f037-49f0-8a54-6e7c7c8710ab | my_tosca_vnf | Demo example with
auto image creation | | ACTIVE |

+--------------------------------------+--------------+---------------------------------------+----------+--------+

stack@vim-222:~/devstack$
stack@vim-222:~/devstack$ nova list
+----+------+--------+------------+-------------+----------+
| ID | Name | Status | Task State | Power State | Networks |
+----+------+--------+------------+-------------+----------+
+----+------+--------+------------+-------------+----------+
stack@vim-222:~/devstack$

stack@vim-222:~/devstack$ ip route

10.12.161.0/24 dev em3 proto kernel scope link src 10.12.161.6

10.12.161.0/24 dev br-ext proto kernel scope link src 10.12.161.1

10.18.161.0/24 dev em2 proto kernel scope link src 10.18.161.164

15.0.0.0/24 via 10.12.161.150 dev em3
192.168.120.0/24 dev br-mgmt0 proto kernel scope link src 192.168.120.1
192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1

On Mon, Jul 25, 2016 at 2:08 PM, Sridhar Ramaswamy <
<email address hidden>> wrote:

> Your question #302221 on tacker changed:
> https://answers.launchpad.net/tacker/+question/302221
>
> Status: Open => Answered
>
> Sridhar Ramaswamy proposed the following answer:
> Hi Harry,
>
> Thanks for your input. We don't have one comprehensive document like
> that. However we recently added [1] to describe better the syntax and
> semantics of VNFD TOSCA YAML template including images. If you find
> anything lacking in this doc, please open a bug [2] and we will fix it.
>
> Log file location is some thing that differs depending on the distros &
> the installer. For devstack, tacker logs are typically in
> /opt/stack/logs/tacker.log.
>
> - Sridhar
>
> [1]
> http://docs.openstack.org/developer/tacker/devref/vnfd_template_description.html
> [2] https://bugs.launchpad.net/tacker/
>
> --
> If this answers your question, please go to the following page to let us
> know that it is solved:
> https://answers.launchpad.net/tacker/+question/302221/+confirm?answer_id=0
>
> If you still need help, you can reply to this email or go to the
> following page to enter your feedback:
> https://answers.launchpad.net/tacker/+question/302221
>
> You received this question notification because you asked the question.
>

Hi Sridhar,

Even though the command line did not show any error, but I saw
inside, /opt/stack/logs/tacker.log, the following error was logged during
tacker vnf-create. May I ask what can cause the problem? tosca-vnfd-image.yaml
was copied from one of Tacker sample.

Thanks,

Harry

from (pid=17717) mgmt_call
/opt/stack/tacker/tacker/vm/mgmt_drivers/noop.py:46^[[00m
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/eventlet/greenpool.py", line
82, in _spawn_n_impl
    func(*args, **kwargs)
  File "/opt/stack/tacker/tacker/vm/plugin.py", line 267, in
create_device_wait
    self.add_device_to_monitor(device_dict)
  File "/opt/stack/tacker/tacker/vm/plugin.py", line 179, in
add_device_to_monitor
    device_dict, action_cb)
  File "/opt/stack/tacker/tacker/vm/monitor.py", line 98, in to_hosting_vnf
    device_dict['mgmt_url']),
  File "/opt/stack/tacker/tacker/openstack/common/jsonutils.py", line 172,
in loads
    return json.loads(strutils.safe_decode(s, encoding))
  File "/opt/stack/tacker/tacker/openstack/common/strutils.py", line 112,
in safe_decode
    raise TypeError("%s can't be decoded" % type(text))
TypeError: <type 'NoneType'> can't be decoded

On Mon, Jul 25, 2016 at 5:41 PM, Harry Zhang <email address hidden>
wrote:

> Hi Sridhar,
>
> Thank you very much for the quick response.
>
> I just installed devstack and Tacker followed the guideline,
>
> Tacker Installation using stable/liberty
>
> 1) Pull devstack repo for stable liberty branch
>
> git clone -b stable/liberty https://github.com/openstack-dev/devstack
>
> 2) A sample local.conf is placed at
> https://raw.githubusercontent.com/openstack/tacker/stable/liberty/devstack/samples/local.conf.example.
> Copy the local.conf to devstack root directory and customize it based on
> your environment settings. Update the HOST_IP to the IP address of VM or
> host where you are running tacker.
>
> 3) Make sure the local.conf "enable_plugin tacker" is pointing to
> stable/liberty,
>
> enable_plugin tacker https://github.com/openstack/tacker stable/liberty
>
> 4) Run stack.sh
>
> I then created vnf successfully as following, but no VM Instance was
> created for me. May I ask what could be the problem?
>
> Regards,
>
> Harry
>
> stack@vim-222:~/devstack$ tacker vnfd-create --vnfd-file
> tosca-vnfd-image.yaml --name cirros-vnfd-vdu
>
> Created a new vnfd:
>
>
> +---------------+------------------------------------------------------------------------+
>
> | Field | Value
> |
>
>
> +---------------+------------------------------------------------------------------------+
>
> | description | Demo example with auto image creation
> |
>
> | id | 7918e2d6-d0e1-4f0a-b7ad-31e509ddc2cb
> |
>
> | infra_driver | heat
> |
>
> | mgmt_driver | noop
> |
>
> | name | cirros-vnfd-vdu
> |
>
> | service_types | {"service_type": "vnfd", "id":
> "6e339adb-fccf-431a-b5b5-cd51352cdbf4"} |
>
> | tenant_id | 4b91fa25521d4255a7201e81918420d2
> |
>
>
> +---------------+------------------------------------------------------------------------+
>
> stack@vim-222:~/devstack$ tacker vnf-create --name my_tosca_vnf --vnfd-id
> 7918e2d6-d0e1-4f0a-b7ad-31e509ddc2cb
>
> Created a new vnf:
>
> +-------------+---------------------------------------+
>
> | Field | Value |
>
> +-------------+---------------------------------------+
>
> | description | Demo example with auto image creation |
>
> | id | 8b350f65-f037-49f0-8a54-6e7c7c8710ab |
>
> | instance_id | 78f8cbce-03ac-4270-837f-5afd708eff8d |
>
> | mgmt_url | |
>
> | name | my_tosca_vnf |
>
> | status | PENDING_CREATE |
>
> | tenant_id | 4b91fa25521d4255a7201e81918420d2 |
>
> | vnfd_id | 7918e2d6-d0e1-4f0a-b7ad-31e509ddc2cb |
>
> +-------------+---------------------------------------+
>
> stack@vim-222:~/devstack$ tacker vnf-list
>
>
> +--------------------------------------+--------------+---------------------------------------+----------+--------+
>
> | id | name | description
> | mgmt_url | status |
>
>
> +--------------------------------------+--------------+---------------------------------------+----------+--------+
>
> | 8b350f65-f037-49f0-8a54-6e7c7c8710ab | my_tosca_vnf | Demo example with
> auto image creation | | ACTIVE |
>
>
> +--------------------------------------+--------------+---------------------------------------+----------+--------+
>
> stack@vim-222:~/devstack$
> stack@vim-222:~/devstack$ nova list
> +----+------+--------+------------+-------------+----------+
> | ID | Name | Status | Task State | Power State | Networks |
> +----+------+--------+------------+-------------+----------+
> +----+------+--------+------------+-------------+----------+
> stack@vim-222:~/devstack$
>
> stack@vim-222:~/devstack$ ip route
>
> 10.12.161.0/24 dev em3 proto kernel scope link src 10.12.161.6
>
> 10.12.161.0/24 dev br-ext proto kernel scope link src 10.12.161.1
>
> 10.18.161.0/24 dev em2 proto kernel scope link src 10.18.161.164
>
> 15.0.0.0/24 via 10.12.161.150 dev em3
> 192.168.120.0/24 dev br-mgmt0 proto kernel scope link src 192.168.120.1
> 192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1
>
>
>
> On Mon, Jul 25, 2016 at 2:08 PM, Sridhar Ramaswamy <
> <email address hidden>> wrote:
>
>> Your question #302221 on tacker changed:
>> https://answers.launchpad.net/tacker/+question/302221
>>
>> Status: Open => Answered
>>
>> Sridhar Ramaswamy proposed the following answer:
>> Hi Harry,
>>
>> Thanks for your input. We don't have one comprehensive document like
>> that. However we recently added [1] to describe better the syntax and
>> semantics of VNFD TOSCA YAML template including images. If you find
>> anything lacking in this doc, please open a bug [2] and we will fix it.
>>
>> Log file location is some thing that differs depending on the distros &
>> the installer. For devstack, tacker logs are typically in
>> /opt/stack/logs/tacker.log.
>>
>> - Sridhar
>>
>> [1]
>> http://docs.openstack.org/developer/tacker/devref/vnfd_template_description.html
>> [2] https://bugs.launchpad.net/tacker/
>>
>> --
>> If this answers your question, please go to the following page to let us
>> know that it is solved:
>> https://answers.launchpad.net/tacker/+question/302221/+confirm?answer_id=0
>>
>> If you still need help, you can reply to this email or go to the
>> following page to enter your feedback:
>> https://answers.launchpad.net/tacker/+question/302221
>>
>> You received this question notification because you asked the question.
>>
>
>

Please try with the new release of Tacker to see if the error still exists.