Merge pull request kubernetes-retired#527 from k82cn/automated-cherry…

…-pick-of-#517-release-0.3

Automated cherry pick of kubernetes-retired#517: Updated version to 0.3

Merge pull request kubernetes-retired#501 from k82cn/automated-cherry…

…-pick-of-#500-upstream-release-0.3

Set 2 compute nodes.

Merge pull request kubernetes-retired#437 from k82cn/automated-cherry…

…-pick-of-#414-release-0.2

Automated cherry pick of kubernetes-retired#414: Added --schedule-period

Merge pull request kubernetes-retired#398 from k82cn/automated-cherry…

…-pick-of-#396-kubernetes-retired#397-release-0.2

Automated cherry pick of kubernetes-retired#396: Fixed build images error. kubernetes-retired#397: Fix build error.