Centos 7 to possibly remove and replace with CentOS-8 jobs per repo for train branch

tags: `Design`

Use the topic: https://review.opendev.org/#/q/topic:c7-to-c8-train+(status:open+OR+status:merged) for all patches :)

Once ~~https://review.opendev.org/#/c/738375/~~ merges.
FYI.. to remove most centos-7 train jobs from upstream
- ~~https://review.opendev.org/#/c/743455/~~
Deprecate c7 train jobs
*~~ https://review.opendev.org/#/c/743959/2~~

How to review the status of what's been done thus far.

http://dashboard-ci.tripleo.org/d/3sUHfh9Wz/jobs-exploration?orgId=1&var-influxdb_filter=job_name|%3D~|%2Ftripleo-ci-centos-8%2F&var-influxdb_filter=branch|%3D|stable%2Ftrain

tripleo-ansible - train - Pooja - DONE

[sandy@localhost tmp]$ cat test | grep -i centos-7
      - tripleo-ci-centos-7-containers-multinode: &containers_multinode
      - tripleo-ci-centos-7-scenario001-standalone: &scenario001
      - tripleo-ci-centos-7-scenario002-standalone: &scenario002
      - tripleo-ci-centos-7-scenario003-standalone: &scenario003
      - tripleo-ci-centos-7-scenario010-standalone: &scenario010
      - tripleo-ci-centos-7-standalone-upgrade-train : &standalone_upgrade
      - tripleo-ci-centos-7-containers-multinode: *containers_multinode
      - tripleo-ci-centos-7-scenario001-standalone: *scenario001
      - tripleo-ci-centos-7-scenario002-standalone: *scenario002
      - tripleo-ci-centos-7-scenario003-standalone: *scenario003
      - tripleo-ci-centos-7-scenario010-standalone: *scenario010

tripleo-common train - Amol

[sandy@localhost tmp]$ cat test | grep -i centos-7
        - tripleo-ci-centos-7-containers-multinode:
        - tripleo-ci-centos-7-undercloud-containers:
        - tripleo-ci-centos-7-standalone:
        - tripleo-ci-centos-7-scenario000-multinode-oooq-container-upgrades:
        - tripleo-ci-centos-7-scenario000-multinode-oooq-container-updates:
        - tripleo-ci-centos-7-scenario007-multinode-oooq-container:
        - tripleo-ci-centos-7-standalone-upgrade:
        - tripleo-ci-centos-7-scenario001-standalone:
        - tripleo-ci-centos-7-scenario002-standalone:
        - tripleo-ci-centos-7-scenario003-standalone:
        - tripleo-ci-centos-7-scenario004-standalone:
        - tripleo-ci-centos-7-scenario012-standalone:
        - tripleo-buildimage-overcloud-full-centos-7:
        - tripleo-buildimage-ironic-python-agent-centos-7:
        - tripleo-buildimage-overcloud-hardened-full-centos-7:
        - tripleo-buildimage-overcloud-full-centos-7:
        - tripleo-buildimage-ironic-python-agent-centos-7:
        - tripleo-buildimage-overcloud-hardened-full-centos-7:

tripleo-heat-templates train - Bhagyashri

[sandy@localhost tmp]$ cat test | grep -i centos
        - tripleo-ci-centos-7-containers-multinode:
        - tripleo-ci-centos-7-undercloud-containers:
        - tripleo-ci-centos-7-standalone:
        - tripleo-ci-centos-7-standalone-upgrade-stein:
        - tripleo-ci-centos-7-scenario000-multinode-oooq-container-upgrades:
        - tripleo-ci-centos-7-scenario000-multinode-oooq-container-updates:
        - tripleo-ci-centos-7-scenario007-multinode-oooq-container:
        - tripleo-ci-centos-7-scenario010-multinode-oooq-container:
        - tripleo-ci-centos-7-standalone-upgrade:
        - tripleo-ci-centos-7-scenario001-standalone:
        - tripleo-ci-centos-7-scenario002-standalone:
        - tripleo-ci-centos-7-scenario003-standalone:
        - tripleo-ci-centos-7-scenario004-standalone:
        - tripleo-ci-centos-7-scenario012-standalone:
        - tripleo-ci-centos-7-containerized-undercloud-upgrades:
        - tripleo-ci-centos-7-scenario000-multinode-oooq-container-upgrades
        - tripleo-ci-centos-7-scenario000-multinode-oooq-container-updates:
        - tripleo-ci-centos-7-scenario011-multinode-oooq-container:
        - tripleo-ci-centos-7-scenario006-multinode-oooq-container:

tripleo-validaion train - Bhagyashri DONE

[sandy@localhost tmp]$ cat test | grep -i centos
      - tripleo-ci-centos-7-scenario004-standalone:
      - tripleo-ci-centos-7-scenario004-standalone:

python-tripleoclient on train - Bhagyashri

python-tripleoclient/zuul.d on  stable/train 
❯ cat layout.yaml | grep centos-7
        - tripleo-ci-centos-7-containers-multinode:
        - tripleo-ci-centos-7-scenario000-multinode-oooq-container-upgrades:
        - tripleo-ci-centos-7-scenario000-multinode-oooq-container-updates:
        - tripleo-ci-centos-7-scenario007-multinode-oooq-container:
        - tripleo-ci-centos-7-standalone-upgrade:
        - tripleo-ci-centos-7-scenario001-standalone:
        - tripleo-ci-centos-7-scenario002-standalone:
        - tripleo-ci-centos-7-scenario003-standalone:
        - tripleo-ci-centos-7-scenario004-standalone:
        - tripleo-ci-centos-7-scenario012-standalone:
        - tripleo-ci-centos-7-containers-undercloud-minion:

puppet-tripleo on train - Amol DONE

puppet-tripleo/zuul.d on  stable/train 
❯ cat layout.yaml | grep centos-7
        - tripleo-ci-centos-7-scenario007-multinode-oooq-container:

tripleo-upgrade on train - Pooja

tripleo-upgrade/zuul.d on  stable/train 
❯ cat layout.yaml | grep centos-7
        - tripleo-ci-centos-7-scenario000-multinode-oooq-container-updates:
              - tripleo-upgrade-centos-7-molecule
        - tripleo-ci-centos-7-scenario000-multinode-oooq-container-upgrades:
              - tripleo-upgrade-centos-7-molecule
        - tripleo-ci-centos-7-containerized-undercloud-upgrades:
              - tripleo-upgrade-centos-7-molecule
        - tripleo-ci-centos-7-standalone-upgrade:
              - tripleo-upgrade-centos-7-molecule
        - tripleo-ci-centos-7-standalone-upgrade-stein:
              - tripleo-upgrade-centos-7-molecule
        - tripleo-upgrade-centos-7-molecule:
        - tripleo-ci-centos-7-scenario000-multinode-oooq-container-updates:
              - tripleo-upgrade-centos-7-molecule
        - tripleo-ci-centos-7-scenario000-multinode-oooq-container-upgrades:
              - tripleo-upgrade-centos-7-molecule
        - tripleo-ci-centos-7-standalone-upgrade-stein:

tripleo-ci centos-7 based jobs running on stable/train needs to adjusted.

All centos-7 based standalone scenario jobs
Undercloud jobs

These projects have jobs coming from template:

tripleo-puppet-elements
tripleo-image-elements
os-refresh-config
os-net-config
os-apply-config
os-apply-config

Move these jobs to c8
ansible-role-tripleo-modify-image on master branch - Bhagyashri DONE

ansible-role-tripleo-modify-image/zuul.d on  master 
❯ cat layout.yaml 
---
- project:
    templates:
      - tripleo-multinode-container-minimal
    check:
      jobs:
        - openstack-tox-linters
        - tripleo-ci-centos-7-scenario001-standalone
    gate:
      jobs:
        - openstack-tox-linters
        - tripleo-ci-centos-7-scenario001-standalone
      queue: tripleo

Missing centos-8 train jobs

tripleo-heat-template - Bhagyashri
- jobs:
  - tripleo-ci-centos-7-standalone-upgrade-stein -
    - Do we have same job for c8 something like c8-standalone-upgrade?
    - As c7 staein to c8 train upgrade is not available yet so should we keep this job or should we remove this?
  - tripleo-ci-centos-7-scenario010-multinode-oooq-container-
    - Missing c8 version of this job
    - fs038
    - NOTE: we can remove this job, as fs038 is used in stein & queens, is replaced with standalone sc10 for octavia testing.
  - tripleo-ci-centos-7-scenario011-multinode-oooq-container-
    - Missing c8 version of this job
    - fs044
      - https://opendev.org/openstack/tripleo-ci/src/branch/master/zuul.d/multinode-jobs.yaml#L529 weired
      - https://opendev.org/openstack/tripleo-quickstart/src/branch/master/config/general_config there is no fs044
      - It can also be removed
  - tripleo-ci-centos-7-scenario006-multinode-oooq-container -
    - Missing c8 version of this job
    - fs026
    - IT is a validation specific job: https://opendev.org/openstack/tripleo-quickstart/src/branch/master/config/general_config/featureset006.yml
    - I think we can repurpose this job for validation testing
    - Action items: Check with Tengu & wes on irc how to repurpose this fs
    - currently we can remove this job but add a bug or taiga card for repurpose
tripleo-ansible - Pooja
- jobs:
  - tripleo-ci-centos-7-standalone-upgrade-train -
    - Missing c8 version of this job

Other jobs that needs to be removed: Bhagyashri - Done

tripleo-rhel-8-buildimage-overcloud-full-train
tripleo-rhel-8-buildimage-ironic-python-agent-train
- ~~https://review.rdoproject.org/r/#/c/28793/~~

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