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diff --git a/docs/platform/architecture.rst b/docs/platform/architecture.rst new file mode 100644 index 0000000..cb658ef --- /dev/null +++ b/docs/platform/architecture.rst @@ -0,0 +1,30 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. + + +Architecture +------------ + +ESR contains two components: esr server module and esr gui module + +- ESR + - ESR server + - ESR gui + +ONAP-level Architecture +^^^^^^^^^^^^^^^^^^^^^^^ + +In ONAP architecture, ESR is a sub-project of A&AI. It provide a single point for users to manage the external system information. It provides a way to register/unregister external system dynamically. + +.. image:: images/esr-architecture.PNG + +How ESR works +^^^^^^^^^^^^^^^^^^^^^^^ + +The user register external system through esr-gui, esr-server will store the external system information to A&AI. And the other components such as VF-C/SDNC/Multi-Cloud then can query the external system information form A&AI. The process of VIM register may be a bit different from the VNFM/EMS/thirdparty SDNC. That because the registered VIM information is some basic information such as region/version/auth-url that things, Multi-Cloud will update the cloud information with more details, such as the volume and tenant details. The VNFM/EMS/thirdparty SDNC will not be updated by VF-C and SDNC. + +.. image:: images/vim-register-progress.PNG +.. image:: images/external-system-register-progress.PNG + +The complete workflow is shown below in the form of a sequence diagram. + +.. image:: images/external-system-register-sequence-diagram.PNG
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