Update documentation for vsphere cloud provider. (kubernetes#1102)

This update adds the new configuration needed to configure the vsphere cloud provider.

Author: kerneltime

docs/getting-started-guides/vsphere.md

@@ -25,10 +25,14 @@ mkdir -p $GOPATH
 export PATH=$PATH:$GOPATH/bin
 ```
 
-4. Install the govc tool to interact with ESXi/vCenter:
+4. Install the govc tool to interact with ESXi/vCenter. Head to [govc Releases](https://github.com/vmware/govmomi/releases) to download the latest.
 
 ```shell
-go get github.com/vmware/govmomi/govc
+# Sample commands for v0.8.0 for 64 bit Linux.
+curl -OL https://github.com/vmware/govmomi/releases/download/v0.8.0/govc_linux_amd64.gz
+gzip -d govc_linux_amd64.gz
+chmod +x govc_linux_amd64
+mv govc_linux_amd64 /usr/local/bin/govc
 ```
 
 5. Get or build a [binary release](/docs/getting-started-guides/binary_release)
@@ -43,7 +47,7 @@ md5sum -c kube.vmdk.gz.md5
 gzip -d kube.vmdk.gz
 ```
 
-Import this VMDK into your vSphere datastore:
+Configure the environment for govc
 
 ```shell
 export GOVC_URL='hostname' # hostname of the vc
@@ -52,9 +56,30 @@ export GOVC_PASSWORD='password' # password for the above username
 export GOVC_NETWORK='Network Name' # Name of the network the vms should join. Many times it could be "VM Network"
 export GOVC_INSECURE=1 # If the host above uses a self-signed cert
 export GOVC_DATASTORE='target datastore'
+# To get resource pool via govc: govc ls -l 'host/*' | grep ResourcePool | awk '{print $1}' | xargs -n1 -t govc pool.info
 export GOVC_RESOURCE_POOL='resource pool or cluster with access to datastore'
 export GOVC_GUEST_LOGIN='kube:kube' # Used for logging into kube.vmdk during deployment.
+export GOVC_PORT=443 # The port to be used by vSphere cloud provider plugin
+# To get datacente via govc: govc datacenter.info
+export GOVC_DATACENTER='ha-datacenter' # The datacenter to be used by vSphere cloud provider plugin
+```
+
+Sample environment
+```shell
+export GOVC_URL='10.161.236.217'
+export GOVC_USERNAME='administrator'
+export GOVC_PASSWORD='MyPassword1'
+export GOVC_NETWORK='VM Network'
+export GOVC_INSECURE=1
+export GOVC_DATASTORE='datastore1'
+export GOVC_RESOURCE_POOL='/Datacenter/host/10.20.104.24/Resources'
+export GOVC_GUEST_LOGIN='kube:kube'
+export GOVC_PORT='443'
+export GOVC_DATACENTER='Datacenter'
+```
 
+Import this VMDK into your vSphere datastore:
+```shell
 govc import.vmdk kube.vmdk ./kube/
 ```
 
@@ -63,6 +88,7 @@ Verify that the VMDK was correctly uploaded and expanded to ~3GiB:
 ```shell
 govc datastore.ls ./kube/
 ```
+
 If you need to debug any part of the deployment, the guest login for 
 the image that you imported is `kube:kube`. It is normally specified 
 in the GOVC_GUEST_LOGIN parameter above.
@@ -110,7 +136,7 @@ going on (find yourself authorized with your SSH key, or use the password
 
 IaaS Provider        | Config. Mgmt | OS     | Networking  | Docs                                              | Conforms | Support Level
 -------------------- | ------------ | ------ | ----------  | ---------------------------------------------     | ---------| ----------------------------
-Vmware vSphere       | Saltstack    | Debian | OVS         | [docs](/docs/getting-started-guides/vsphere)                                |          | Community ([@imkin](https://github.com/imkin))
+Vmware vSphere       | Saltstack    | Debian | OVS         | [docs](/docs/getting-started-guides/vsphere)                                |          | Community ([@imkin](https://github.com/imkin)), ([@abrarshivani](https://github.com/abrarshivani)), ([@kerneltime](https://github.com/kerneltime)), ([@kerneltime](https://github.com/luomiao))
 
 For support level information on all solutions, see the [Table of solutions](/docs/getting-started-guides/#table-of-solutions) chart.