Metrics server running on application CPU cores

[Thiago Oliveira Miranda]

Brief Description
-----------------
Metrics Server is running on application CPU cores.

Severity
--------
Minor - this is more of a performance/optimization issue; not a functional issue

Steps to Reproduce
------------------
- Apply label kube-cpu-mgr-policy=static
- install metrics-server
- Check if it is running on platform CPU cores or application CPU cores

Expected Behavior
------------------
metrics-server should execute only on platform cores

Actual Behavior
----------------
metrics-server shifting on application and platform cores

Reproducibility
---------------
Reproducible

System Configuration
--------------------
any - not specific to any system configuration

Branch/Pull Time/Commit
-----------------------
stx master

Timestamp/Logs
--------------
Not needed. Issue is easily reproducible.

Test Activity
-------------
Other - Evaluation

Workaround
----------
N/A

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/starlingx/integ/+/833150

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/starlingx/monitoring/+/833153

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/integ/+/833150
Committed: https://opendev.org/starlingx/integ/commit/636e5352d9445080fce66de14673e90804f4e6e1
Submitter: "Zuul (22348)"
Branch: master

commit 636e5352d9445080fce66de14673e90804f4e6e1
Author: Thiago Miranda <email address hidden>
Date: Thu Mar 10 12:04:30 2022 -0500

    Add metrics-server to list of platform namespaces

    Testing:
    * Deployed ISO with changes.
    * Configured kube-cpu-mgr-policy=static.
    * Verified that metrics-server were running on platform CPUs.

    Partial-Bug: 1964503

    Signed-off-by: Thiago Miranda <email address hidden>
    Change-Id: I9bebe9ec27fcd70e89a4cae52bfacde993f958eb

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/starlingx/integ/+/834215

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/monitoring/+/833153
Committed: https://opendev.org/starlingx/monitoring/commit/42eebe5025e7c81fd747c90b60723203d9822294
Submitter: "Zuul (22348)"
Branch: master

commit 42eebe5025e7c81fd747c90b60723203d9822294
Author: Thiago Miranda <email address hidden>
Date: Thu Mar 10 12:24:06 2022 -0500

    Add metrics-server to list of platform namespaces

    Partial-Bug: 1964503
    Depends-On: https://review.opendev.org/c/starlingx/integ/+/833150

    Signed-off-by: Thiago Miranda <email address hidden>
    Change-Id: I9d2517e9cfff1f7da27651bab1473bcfc1a2667b

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/integ/+/834215
Committed: https://opendev.org/starlingx/integ/commit/9b3c3b55664933407d41c18999dd3f01ac4289f0
Submitter: "Zuul (22348)"
Branch: master

commit 9b3c3b55664933407d41c18999dd3f01ac4289f0
Author: Thiago Miranda <email address hidden>
Date: Thu Mar 17 14:44:35 2022 -0400

    Add metrics-server to list of platform namespaces

    Testing:
    * Deployed ISO with changes.
    * Configured kube-cpu-mgr-policy=static.
    * Verified that metrics-server were running on platform CPUs.

    Partial-Bug: 1964503

    Signed-off-by: Thiago Miranda <email address hidden>
    Change-Id: I447e4ccc113a4d0cc34a73bd71ac961305987c06

[Ghada Khalil (gkhalil)]

Are further changes required for this LP? If not, please mark it as Fix Released.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/integ/+/849157
Committed: https://opendev.org/starlingx/integ/commit/500adad67ee2da00b94767c9eb284127f752cd7f
Submitter: "Zuul (22348)"
Branch: master

commit 500adad67ee2da00b94767c9eb284127f752cd7f
Author: Kaustubh Dhokte <email address hidden>
Date: Fri Jul 8 23:20:13 2022 +0000

    Debian: Add metrics-server to platform namespaces

    This change https://review.opendev.org/c/starlingx/integ/+/834215
    adds metrics-server to the list of platform namespaces for
    k8s 1.23.1. Apparently, Debian package for k8s 1.23.1 was not
    added when above change was created.

    Note: The patch was copied from centos/files.

    Test Plan:
    Pass: Package builds successfully
    PASS: Image built and deployed successfully.
    PASS: Apply metrics-server and verify that metrics-server is
          running on platform CPUs.

    Closes-Bug: 1964503

    Signed-off-by: Kaustubh Dhokte <email address hidden>
    Change-Id: I989be27416f388dc0ff46a820b8fa3a276600737