Moving to CNCF cluster

[anishakj]

Signed-off-by: anisha.kj [email protected]

Change log description

Currently e2e tests were run on AWS cluster. Moving the cluster from AWS to CNCF.

Purpose of the change

Fixes #437

What the code does

Modified travis file to create cluster in CNCF and execute tests there. Cluster provided is bare metal , so installed Kubernetes also on the nodes.

How to verify it

Verified that e2e tests are passing

[codecov-commenter]

Codecov Report

Merging #429 into master will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #429      +/-   ##
==========================================
+ Coverage   76.11%   76.13%   +0.02%     
==========================================
  Files          14       14              
  Lines        3320     3323       +3     
==========================================
+ Hits         2527     2530       +3     
  Misses        705      705              
  Partials       88       88              

Impacted Files	Coverage Δ
pkg/apis/pravega/v1beta1/pravega.go	97.53% <ø> (ø)
pkg/controller/pravega/pravega_controller.go	100.00% <100.00%> (ø)
pkg/controller/pravega/pravega_segmentstore.go	100.00% <100.00%> (ø)
pkg/util/pravegacluster.go	97.45% <100.00%> (-0.07%)	⬇️

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[Prabhaker24]

LGTM