train centos-8

tags: Design

Goal:

• Provide CI coverage for CentOS-8 train upstream
• Provide CI coverage for CentOS-7 train for RDO community e.g. CERN

Proposal

A:
(pure)

• upstream check/gate moves to 100% centos-8 train
• periodic pipeline for centos-7 train only

B:
(mixed)

• upstream combination of multiple centos-7 jobs and centos-8
• periodic centos-7 and centos-8 lines

C:
( just enough )

• upstream, 1 centos7-train job.. most likely containers-multinode
• the rest of the jobs are centos-8

D: voting 3rd party 7 upstream 8

• upstream centos-8-train check/gate
• 3rd party rdo centos-7-train check that can vote e.g. service user -
  lets try do this zuul natively (with the service user config), if possible. Otherwise we have to explore an agent to monitor & vote.

PATH FORWARD:

• Use A + D.
  • D will be mark all the 3rd party check jobs non-voting
  • set the service user
    • lets try do this zuul natively (with the service user config), if possible. Otherwise we have to explore an agent to monitor & vote.

required changes

to enable centos-8-train components and centos-7 monolithic builds

• update get_hash methods and when to use components
  • use components or not.. https://review.opendev.org/#/c/726919/1/roles/build-test-packages/defaults/main.yml
  • get-hash https://review.rdoproject.org/r/#/c/26346/11/ci-scripts/infra-setup/roles/get_hash/defaults/main.yml && https://review.rdoproject.org/r/#/c/26346/11/ci-scripts/infra-setup/roles/get_hash/tasks/get_hash.yaml
  • get-hash http://codesearch.openstack.org/?q=release is search&i=nope&files=&repos=
  • get-hash RDO https://review.rdoproject.org/codesearch/?q=dlrn_hash_baseurl&i=nope&files=&repos=
  • emit-releases https://opendev.org/openstack/tripleo-ci/src/branch/master/scripts/emit_releases_file/emit_releases_file.py

upgrade jobs

upgrade jobs are critical here because having centos-8-train will allow upgrade jobs from train to ussuri. To date this has been impossible because of CentOS version mismatch

upstream names and coverage ( ignore distro )

• tripleo-ci-centos-8-scenario000-multinode-oooq-container-updates
• tripleo-ci-centos-7-scenario000-multinode-oooq-container-upgrades
• tripleo-ci-centos-7-standalone-upgrade-train
• tripleo-ci-centos-7-containerized-undercloud-upgrades

Other train jobs needed for CentOS-8

pipelines

ATM, train is running openstack-periodic-24hr..

• too many jobs there
• openstack-periodic-n-2 for centos-8
  • openstack-periodic-24hr
    • centos-7-train
    • centos-7-stein ( possible weekend)

Task stream

Updated Apr 29 13:53 UTC

Older tasks no longer relevant

User Stories

1. component pipeline, centos-8 train - Done
2. complete integration line for centos-8 - In progress
   Note: Total 10 jobs were missing. Out of 10, 7 jobs are almost done (4 Merged and 3 Ready for review) GREEN, 3 are in progress. Refe: https://hackmd.io/oiRjzroqTE6xLsLR0vfpKw?both
   Here is the review list:
   https://review.rdoproject.org/r/#/c/28284/
   https://review.rdoproject.org/r/#/c/28603/
   https://review.rdoproject.org/r/#/c/28614/
   https://review.rdoproject.org/r/#/c/28564/
   https://review.rdoproject.org/r/#/c/28588
3. upgrade / update jobs
4. promoter to support centos-7 / centos-8
   5. namespace centos7 = tripleotrain
   6. namespace centos8 = tripleotraincentos8
5. upstream jobs - Ready for review but needs wes's approval
6. ~~reconcile upstream, periodic job names?