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diff --git a/docs/manual_use_case.rst b/docs/manual_use_case.rst index 2984854..177f191 100644 --- a/docs/manual_use_case.rst +++ b/docs/manual_use_case.rst @@ -18,7 +18,9 @@ **Manual Scale Out Use Case** ================================== -In its Beijing Release, ONAP will support the ability to manually scale out VNF Components. Below is the Sequence Diagram for how Manual Scale Out will work in ONAP. +Since its Beijing Release, ONAP will support the ability to manually scale +out VNF Components. Below is the Sequence Diagram for how Manual Scale Out +will work in ONAP. |image0| @@ -26,26 +28,42 @@ Description of Workflow --------------------------------------------- At a high level the way Manual Scale Out will work is: - 1. Using VID, the operator will choose to scale out a VNFC by picking a VF_Module to scale and choosing which controller is responsible for that VNF. + + 1. Using VID, the operator will choose to scale out a VNFC by picking a + VF_Module to scale and choosing which controller is responsible for + that VNF. 2. VID sends the Scale Out Request to SO. - 3. When SO receives the Scaling request it will first send a request to the appropriate controller (APPC or SDNC) to execute a Healthcheck on the VNF. - 4. Once the Healthcheck has been run, SO executes the Heat Template associated with the VF Module requested by the VID Operator. - 5. After the new component(s) have been instantiated SO calls the responsible controller (via DMaaP) to configure the new instances. - 6. Finally a Healthcheck is run to ensure that the entire VNF is Operating as it should. + 3. When SO receives the Scaling request it will first send a request to + the appropriate controller (APPC or SDNC) to execute a Healthcheck on the + VNF. + 4. Once the Healthcheck has been run, SO executes the Heat Template + associated with the VF Module requested by the VID Operator. + 5. After the new component(s) have been instantiated SO calls the + responsible controller (via DMaaP) to configure the new instances. + 6. Finally a Healthcheck is run to ensure that the entire VNF is Operating + as it should. VNF Impacts ------------------------ -For VNFs to make use of the Manual Scaling Capabilities of ONAP, they must support the following functionality: +For VNFs to make use of the Manual Scaling Capabilities of ONAP, they must +support the following functionality: + 1. VNFs must support a Healthcheck as described in: `The Management Section of the ONAP VNF Guidelines <http://onap.readthedocs.io/en/latest/submodules/vnfrqts/requirements.git/docs/Chapter7.html#vnf-rest-apis>`_. - a. R-31809 is the requirement dictating the need for VNF Healthchecks. - b. The Ansible Healthcheck Playbook description may be found in `The Ansible Standards and Capabilities Section <http://onap.readthedocs.io/en/latest/submodules/vnfrqts/requirements.git/docs/Chapter7.html#ansible-standards-and-capabilities>`_. + + a. R-31809 is the requirement dictating the need for VNF Healthchecks. + b. The Ansible Healthcheck Playbook description may be found in `The Ansible Standards and Capabilities Section <http://onap.readthedocs.io/en/latest/submodules/vnfrqts/requirements.git/docs/Chapter7.html#ansible-standards-and-capabilities>`_. + 2. VNF Heat Templates must be built according the `VNF Modularity Rules <http://onap.readthedocs.io/en/latest/submodules/vnfrqts/requirements.git/docs/Chapter4.html#d-vnf-modularity>`_. - a. The VF_Module to be scaled must be built according the VNF Modularity Rules for Incremental Modules. - 3. Configuration of the VNF must be done via NETCONF, Chef, or Ansible as described in `Configuration Management <http://onap.readthedocs.io/en/latest/submodules/vnfrqts/requirements.git/docs/Chapter7.html#c-configuration-management>`_. + + a. The VF_Module to be scaled must be built according the VNF + Modularity Rules for Incremental Modules. + + 3. Configuration of the VNF must be done via NETCONF, Chef, or Ansible + as described in `Configuration Management <http://onap.readthedocs.io/en/latest/submodules/vnfrqts/requirements.git/docs/Chapter7.html#c-configuration-management>`_. .. |image0| image:: Scale_Out_Workflow.png - :width: 7in + :width: 8in :height: 9in |