Improve Quick Start Guide & update docker image repo

Makefile

@@ -1,6 +1,6 @@
 BIN_DIR=_output/bin
-IMAGE=volcano
-TAG = 0.1
+IMAGE=volcanosh/volcano
+TAG = latest
 
 .EXPORT_ALL_VARIABLES:
 

README.md

@@ -47,33 +47,43 @@ the open source community.
 
 ![volcano](docs/images/volcano-intro.png)
 
-## Installation
+## Quick Start Guide
 
-The easiest way to use Volcano is to use the Helm chart.
+The easiest way to deploy Volcano is to use the Helm chart.
 
+### Pre-requisites
+
+First of all, clone the repo to your local path:
+
+```
+# mkdir -p $GOPATH/src/volcano.sh/
+# cd $GOPATH/src/volcano.sh/
+# git clone https://github.com/volcano-sh/volcano.git
+```
 
 ### 1. Volcano Image
 
-Official images are not yet available on DockerHub, however you can
+Official images are available on [DockerHub](https://hub.docker.com/u/volcanosh), however you can
 build them locally with the command:
 
 ```
+cd $GOPATH/src/volcano.sh/volcano
 make docker
+
+## Verify your images
+# docker images
+REPOSITORY                      TAG                 IMAGE ID            CREATED             SIZE
+volcanosh/volcano-admission     latest              a83338506638        8 seconds ago       41.4MB
+volcanosh/volcano-scheduler     latest              faa3c2a25ac3        9 seconds ago       49.6MB
+volcanosh/volcano-controllers   latest              7b11606ebfb8        10 seconds ago      44.2MB
+
 ``` 
 
 **NOTE**: You need ensure the images are correctly loaded in your kubernetes cluster, for
 example, if you are using [kind cluster](https://github.com/kubernetes-sigs/kind), 
 try command ```kind load docker-image <image-name>:<tag> ``` for each of the images.
 
 ### 2. Helm charts
-First of all, clone the repo to your local path:
-
-```
-# mkdir -p $GOPATH/src/volcano.sh/
-# cd $GOPATH/src/volcano.sh/
-# git clone https://github.com/volcano-sh/volcano.git
-```
-
 Second, install the required helm plugin and generate valid
 certificate, volcano uses a helm plugin **gen-admission-secret** to
 generate certificate for admission service to communicate with
@@ -85,12 +95,22 @@ helm plugin install installer/chart/volcano/plugins/gen-admission-secret
 
 #2. Generate secret within service name
 helm gen-admission-secret --service <specified-name>-admission-service --namespace <namespace>
+
+## For eg: 
+kubectl create namespace volcano-trial
+
+helm gen-admission-secret --service volcano-trial-admission-service --namespace volcano-trial
+
 ```
 
 Finally, install helm chart.
 
 ```
 helm install installer/chart/volcano --namespace <namespace> --name <specified-name>
+
+For eg :
+helm install installer/chart/volcano --namespace volcano-trial --name volcano-trial
+
 ```
 
 **NOTE**:The ```<specified-name>``` used in the two commands above should be identical.

installer/chart/volcano/values.yaml

@@ -1,7 +1,7 @@
 basic:
-  image_tag_version: "1.0"
-  controller_image_name: "volcano-controllers"
-  scheduler_image_name: "volcano-scheduler"
-  admission_image_name: "volcano-admission"
+  image_tag_version: "latest"
+  controller_image_name: "volcanosh/volcano-controllers"
+  scheduler_image_name: "volcanosh/volcano-scheduler"
+  admission_image_name: "volcanosh/volcano-admission"
   admission_secret_name: "volcano-admission-secret"
   image_pull_secret: ""