[fix][alpine] thread stack size

[yuweisung]

Fixes 23348

Main Issue: #23348

Motivation

Alpine pthread stack size is too small. In some cases, the pod will be oomkilled due to "cannot create native thread".

Modifications

Add ENV in dockerfile

Verifying this change

• Make sure that the change passes the CI checks.

(Please pick either of the following options)

This change is a trivial rework / code cleanup without any test coverage.

(or)

This change is already covered by existing tests, such as (please describe tests).

(or)

This change added tests and can be verified as follows:

(example:)

• Added integration tests for end-to-end deployment with large payloads (10MB)
• Extended integration test for recovery after broker failure

Does this pull request potentially affect one of the following parts:

If the box was checked, please highlight the changes

• Dependencies (add or upgrade a dependency)
• The public API
• The schema
• The default values of configurations
• The threading model
• The binary protocol
• The REST endpoints
• The admin CLI options
• The metrics
• Anything that affects deployment

Documentation

• doc
• doc-required
• doc-not-needed
• doc-complete

Matching PR in forked repository

PR in forked repository:

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- [ ] `doc` <!-- Your PR contains doc changes -->
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- [ ] `doc-not-needed` <!-- Your PR changes do not impact docs -->
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[lhotari]

This is a multi-stage image. The ENV is only effective in the final image if it's defined in the last stage.

[lhotari]

Alpine pthread stack size is too small. In some cases, the pod will be oomkilled due to "cannot create native thread".

Please share more details of the error message so that it would be possible to find this PR by searching with the error message. It would be great to have a way to reproduce.

Please also share more context for reviewers so that a reviewer could read from some reference what this is about.

[lhotari]

This would become obsolete with #23366