59 lines
1.9 KiB
ReStructuredText
59 lines
1.9 KiB
ReStructuredText
========================
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VNF Component in Tacker
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========================
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This section will cover how to deploy `vnf component` in Tacker with the
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examples of how to write VNF descriptors.
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Sample TOSCA with vnfc
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=======================
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The following example shows vnfc resource using TOSCA template.
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The target (VDU1) of the 'firewall_vnfc' in this example need to be
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described firstly like other TOSCA templates in Tacker.
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.. code-block:: yaml
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topology_template:
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node_templates:
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firewall_vnfc:
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type: tosca.nodes.nfv.VNFC.Tacker
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requirements:
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- host: VDU1
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interfaces:
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Standard:
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create: install_vnfc.sh
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Every vnfc node must be of type 'tosca.nodes.nfv.VNFC.Tacker'. It takes
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two parameters:
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1) requirements: This node will accept list of hosts on which VNFC has to be
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installed.
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2) interfaces: This node will accept the absolute path of shell script to be run
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on the VDUs. This shell script should reside in the machine where tacker
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server is running.
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How to setup environment
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~~~~~~~~~~~~~~~~~~~~~~~~~
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To make use of VNFC in Tacker, we have to upload the image to the glance in
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which heat-config and heat-config agents are installed. The installation steps
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can be referred `here <https://github.com/openstack/heat-templates/blob/master/
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hot/software-config/elements/README.rst>`_. The tool
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'tools/vnfc/build_image.sh' can be used to generate such a kind of image.
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Currently VNFC feature works by using `heat software config <http://docs.openstack.org/
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developer/heat/template_guide/openstack.html#OS::Heat::SoftwareConfig>`_ which
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makes use of heat API.
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So the glance images which has heat-config agents installed are only to be
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passed to VDU.
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Known Limitations
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~~~~~~~~~~~~~~~~~
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1) Only one VNFC is supported for one VDU. Multiple VNFC per VDU will
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be introduced in future.
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2) The shell script for vnfc has to be placed in the machine where tacker
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server is running.
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