manifest: Change default values of env vars

[oshoval]

Use empty strings as default values for the env vars.
The Zone manager will set the defaults accordingly.
This allows to deploy the manifest as is.

Since CNAO CR also doesn't have values, it will align the e2e test to
work when running from CNAO (using default values).

None

[dteplits]

Use empty strings as default values for the env vars. The Zone manager will set the defaults accordingly. This allows the deploy the manifest as is.

None

I guess you meant "This allows to deploy the manifest as is."

[oshoval]

Right thanks, fixed and rebased

[dteplits]

/lgtm

[oshoval]

Rebase
adjust the test accordingly

[oshoval]

https://prow.ci.kubevirt.io/view/gs/kubevirt-prow/pr-logs/pull/kubevirt_kubesecondarydns/36/pull-kubesecondarydns-e2e-k8s/1600149829063806976
failed here, lets see if always fails

/retest

[oshoval]

Weird that when going back and forth from draft the git actions aren't triggered

[oshoval]

Closed reopen fixed the git actions

[AlonaKaplan]

/approve

[kubevirt-bot]

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[AlonaKaplan]

/lgtm

[oshoval]

Thanks
When you can please create a tag, so we can consume it on CNAO