Deploy mizar as standalone plugin to Kubernetes cluster where there i…

…s no kube-proxy (#434)

* operator deployed using k8s api server data

* corrected mizar plugin yaml file names

* added instruction of mizar cni plugin installation

docs/user/getting_started.md

@@ -80,6 +80,24 @@ This script does the following:
 * Deploy the Mizar Daemon
 * Install the Mizar CNI Plugin
 
+### Install Mizar as Kubernetes CNI plugin
+Mizar can be installed as network plugin to any Kubernetes cluster. Below has been verified to work for Ubuntu 20.04.1 LTS (on AWS EC2 VM).
+
+If a Kuberneetes cluster has kube-proxy daemonSet running, the simple one line would have Mizar installed:
+```bash
+kubectl apply -f https://raw.githubusercontent.com/CentaurusInfra/mizar/dev-next/etc/deploy/deploy.mizar.components.yaml
+```
+
+If the cluster has no kube-proxy (e.g. cluster being started using kubeadm init --skip-phases=addon/kube-proxy), you need to run below first:
+```bash
+kubectl create configmap mizar-k8s-config --from-literal=k8sapihost="<kube-api-server-ip>" --from-literal=k8sapiport="<kube-api-server-port>"
+```
+where the kube-api-server-ip and kube-api-server-port can be identified by ```kubectl get endpoint kubernetes```,
+then run following command to have Mizar plugin installed
+```bash
+kubectl apply -f https://raw.githubusercontent.com/CentaurusInfra/mizar/dev-next/etc/deploy/deploy.mizar.components.direct-api-access.yaml
+```
+
 ### Linux Kernel Update
 
 For TCP to function properly, you will need to update your Kernel version to at least 5.6-rc2 on every node. A script, ```kernel_update.sh``` is provided in the Mizar repo to download and update your machine's kernel if you do not wish to build the kernel source code yourself.