Update deployment YAML files to use 'latest' tag (openebs#423)

* Deploy files should specify mayastor images with 'latest' tag

* Update /deploy README - use "latest" tag on images

YAML files defining the deployment of Mayastor containers now use the 'latest' tag on all Mayastor supplied-images, instead of a one reflecting the repository branch or tag.

deploy/README.md

@@ -1,7 +1,13 @@
-# Quickstart
+# Quickstart Guide
 
-### Relocated
+### Has been relocated
 
-As of v0.4.0, the Mayastor user's quickstart guide has moved.
+As of release 0.4.0-alpha the Mayastor user's quickstart guide has moved.
 
-It is now hosted by [GitBook](https://mayastor.gitbook.io/introduction/).
+It is now hosted at [GitBook](https://mayastor.gitbook.io/introduction/).
+
+# Deployment Files
+
+The files in this directory are provided as a convenience, a template for the successful test deployment of Mayastor to a cluster.
+
+**NOTE:** ALL versions of deployment files from v0.4.0 specify the 'latest' tag on Mayastor container images.  If you wish to deploy earlier versions, your own builds, or a nightly build, you must change the image tags accordingly.

deploy/csi-daemonset.yaml

@@ -28,7 +28,7 @@ spec:
       # the same.
       containers:
       - name: mayastor-csi
-        image: mayadata/mayastor-csi:v0.3.0
+        image: mayadata/mayastor-csi:latest
         imagePullPolicy: Always
         # we need privileged because we mount filesystems and use mknod
         securityContext:

deploy/mayastor-daemonset.yaml

@@ -31,7 +31,7 @@ spec:
       # the same.
       containers:
       - name: mayastor
-        image: mayadata/mayastor:v0.3.0
+        image: mayadata/mayastor:latest
         imagePullPolicy: Always
         env:
         - name: MY_NODE_NAME

deploy/moac-deployment.yaml

@@ -44,7 +44,7 @@ spec:
               mountPath: /var/lib/csi/sockets/pluginproxy/
 
         - name: moac
-          image: mayadata/moac:v0.3.0
+          image: mayadata/moac:latest
           imagePullPolicy: Always
           args:
             - "--csi-address=$(CSI_ENDPOINT)"