Update etcd presubmit unit test jobs

[ivanvc]

Update the current pull-etcd-unit-test job: adjust its memory based on Grafana, rename it to add the 386 job, update its running parameters, and store the JUnit results in Prow artifacts.

Add the 386 job moving forward with the Prow infra migration.

[jmhbnz]

If we are limiting to once CPU here should we also update requests/limits for the pod to 1 CPU?

[ivanvc]

I left it with what the original import to Prow had. Notice that it has optional: true, as I'm monitoring these jobs and adjusting resources after some runs. Based on my observations from the integration tests, even when limited to one CPU, it may consume a bit more, especially at the beginning of the job.

[ivanvc]

Refer to: https://monitoring-eks.prow.k8s.io/d/96Q8oOOZk/builds?var-org=etcd-io&var-repo=etcd&var-job=pull-etcd-integration-1-cpu-amd64&orgId=1&refresh=30s&from=now-7d&to=now&var-build=All

I'm fine setting it to one, though, as CPU limits in Kubernetes are soft.

[jmhbnz]

All good, let's leave it as is and tune later as needed :)

[jmhbnz]

/lgtm
/approve

Thanks @ivanvc

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ivanvc, jmhbnz

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[k8s-ci-robot]

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

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

In response to this:

Update the current pull-etcd-unit-test job: adjust its memory based on Grafana, rename it to add the 386 job, update its running parameters, and store the JUnit results in Prow artifacts.

Add the 386 job moving forward with the Prow infra migration.

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[ivanvc]

Linking to kubernetes/k8s.io#6102.