[PPML] Add deploy_intel_sgx_device_plugin_for_kubernets in QuickStart (#3512)

* [PPML] Add deploy_intel_sgx_device_plugin in QuickStart
* Append k8s-deploy doc in index.rst

docs/readthedocs/source/doc/PPML/QuickStart/deploy_intel_sgx_device_plugin_for_kubernets.md

@@ -0,0 +1,27 @@
+# Deploy the Intel SGX Device Plugin for Kubenetes
+
+The instructions in this section are modified from the [Intel SGX Device Plugin homepage][intelSGX], to which please refer should questions arise.
+
+## Prerequisites
+Prerequisites for building and running these device plugins include:
+- Appropriate hardware. ([3rd Gen Intel Xeon Scalable Processors][GIXSP])
+- A fully configured Kubernetes cluster
+- A working Go environment, of at least version v1.16
+
+Here we would want to deploy the plugin as a DaemonSet, so pull the [source code][pluginCode]. In the working directory, compile with 
+``` bash
+make intel-sgx-plugin
+make intel-sgx-initcontainer
+```
+Deploy the DaemonSet with
+```bash
+kubectl apply -k deployments/sgx_plugin/overlays/epc-register/
+```
+Verify with (replace the `<node name>` with your own node name)
+```
+kubectl describe node <node name> | grep sgx.intel.com
+```
+
+[intelSGX]: https://intel.github.io/intel-device-plugins-for-kubernetes/cmd/sgx_plugin/README.html
+[GIXSP]: https://www.intel.com/content/www/us/en/products/docs/processors/xeon/3rd-gen-xeon-scalable-processors-brief.html
+[pluginCode]: https://github.com/intel/intel-device-plugins-for-kubernetes

docs/readthedocs/source/index.rst

@@ -82,6 +82,7 @@ BigDL Documentation
    doc/PPML/Overview/trusted_big_bata_analytics_and_ml.md
    doc/PPML/Overview/trusted_fl.md
    doc/PPML/QuickStart/build_kernel_with_sgx.md
+   doc/PPML/QuickStart/deploy_intel_sgx_device_plugin_for_kubernets.md
    doc/PPML/QuickStart/trusted-serving-on-k8s-guide.md
 
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