MGMT-19545: add optional release registry field to the IBI installation config

[mresvanis]

This change adds the optional ReleaseRegistry field in the IBI installation config. This field is used as a replacement for the seed release registry in the seed cluster's image pull-specs, when the seed container image is generated in a disconnected SNO (i.e. with mirror registries configured).

It is related to: openshift-kni/lifecycle-agent#727.

[openshift-ci-robot]

@mresvanis: This pull request references MGMT-19545 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the bug to target the "4.19.0" version, but no target version was set.

In response to this:

This change adds the optional ReleaseRegistry field in the IBI installation config. This field is used as a replacement for the seed release registry in the seed cluster's image pull-specs, when the seed container image is generated in a disconnected SNO (i.e. with mirror registries configured).

It is related to: openshift-kni/lifecycle-agent#727.

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[openshift-ci]

Skipping CI for Draft Pull Request.
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You can still manually trigger a test run with /test all

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[mresvanis]

/test all

[openshift-ci]

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

Test name	Commit	Details	Required	Rerun command
ci/prow/e2e-vsphere-ovn-multi-network	41c1a6b	link	false	/test e2e-vsphere-ovn-multi-network
ci/prow/okd-scos-e2e-aws-ovn	41c1a6b	link	false	/test okd-scos-e2e-aws-ovn
ci/prow/e2e-vsphere-host-groups-ovn-custom-no-upgrade	41c1a6b	link	false	/test e2e-vsphere-host-groups-ovn-custom-no-upgrade

Full PR test history. Your PR dashboard.

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