Update the clients release docker image to AlmaLinux 8

[Xtansia]

Description

Update the clients release docker image to AlmaLinux 8.

Allows upgrading to .NET SDK 8.0. opensearch-net now uses .NET SDK 8.0 to build, but current image only has 6.0, leading to a release failure. CentOS 7 is not supported by Microsoft anymore and so .NET 8.0 is unavailable without upgrading.

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[peterzhuamazon]

Taking a look.

[gaiksaya]

How about keep both files under current? As other clients are using the current ones. You can override the default one by new image using https://github.com/opensearch-project/opensearch-build-libraries/blob/main/vars/standardReleasePipelineWithGenericTrigger.groovy#L15

[peterzhuamazon]

How about keep both files under current? As other clients are using the current ones. You can override the default one by new image using https://github.com/opensearch-project/opensearch-build-libraries/blob/main/vars/standardReleasePipelineWithGenericTrigger.groovy#L15

I am ok to actually start migrating to alma8 for other clients now.
As CentOS7 is already deprecated per our announcement.
Also it is not easy to maintain it overtime due to not having updated pkgs everywhere.

The CentOS7 image is on dockerhub already so we can move the dockerfile to legacy to prevent new builds and can start the migrations as needed.
WDYT @gaiksaya ?

Thanks.

[peterzhuamazon]

Hi @Xtansia thanks for the PR here.

The file has been altered a bit compares to the original dockerfile.

Could you please take a look on it? Thanks.

[peterzhuamazon]

Thanks @Xtansia !

[peterzhuamazon]

Will build image.

[peterzhuamazon]

https://build.ci.opensearch.org/job/docker-build/5786/console

[peterzhuamazon]

https://build.ci.opensearch.org/job/docker-copy/1441/console

[peterzhuamazon]

Image online: https://hub.docker.com/r/opensearchstaging/ci-runner/tags?page_size=&ordering=last_updated&name=release-almalinux8-clients-v1