etcd: add periodic tests ci-etcd-unit-test-amd64 and ci-etcd-robustness-amd64

[siyuanfoundation]

kubernetes/k8s.io#6102

[jmhbnz]

/lgtm

Thanks @siyuanfoundation - Question re lazyfs below but overall this looks good.

[jmhbnz]

Have we tested this with a local prow instance? I had a lot of trouble getting lazyfs to work within github actions. Curious to see how it behaves here.

[siyuanfoundation]

Yes, I have tested this locally. Had some trouble getting lazyfs to work too, but it seems to work after setting privileged: true

[serathius]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: serathius, siyuanfoundation

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• config/jobs/etcd/OWNERS [serathius]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[k8s-ci-robot]

@siyuanfoundation: Updated the job-config configmap in namespace default at cluster test-infra-trusted using the following files:

• key etcd-periodics.yaml using file config/jobs/etcd/etcd-periodics.yaml

In response to this:

kubernetes/k8s.io#6102

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/test-infra repository.