Description of problem:

Upstream sources of virtctl expect the golang 1.19 featureset to be available but downstream builds of virtctl still use older versions of golang (RHEL8/9 -> golang 1.18, RHEL7 -> golang 1.17). This breaks builds when using language features not available in older golang versions. (see [1] for an example)

As a start my suggestion is to drop virtctl support for RHEL7, because the OpenShift CLI client already dropped RHEL7 support in version 4.11. (see [2])

Further we should try to better keep golang versions between upstream and downstream builds in sync.

[1]: https://github.com/kubevirt/kubevirt/pull/9086
[2]: https://access.redhat.com/articles/6968945

Version-Release number of selected component (if applicable):
4.13

How reproducible:
Always

Steps to Reproduce:
1. Try to build virtctl with golang version 1.17 or older
2.
3.

Actual results:
The build fails because latest virtctl sources use language features not available in golang 1.17 / RHEL 7 builds.

Expected results:
The build succeeds because the required golang featureset is available.

or

No builds with old golang versions of sources requiring later golang versions.

Additional info: