pod scheduling specs

[harsha3330]

Added Affinity , Tolerations and Nodeselector for stateful set pod scheduling
Issue : #293

[k8s-ci-robot]

Hi @harsha3330. Thanks for your PR.

I'm waiting for a etcd-io member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work.

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[ivanvc]

Suggestion to use Spec for consistency with Metadata.

Suggested change

	PodSpec *PodSpec `json:"spec,omitempty"`
	Spec *PodSpec `json:"spec,omitempty"`

[harsha3330]

did the changes

[ivanvc]

/ok-to-test

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: harsha3330
Once this PR has been reviewed and has the lgtm label, please assign ivanvc for approval. For more information see the Code Review Process.

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[k8s-ci-robot]

@harsha3330: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-etcd-operator-test-e2e	29f95bf	link	true	/test pull-etcd-operator-test-e2e

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

Details

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.

[harsha3330]

@ivanvc can you review the changes