Docker ARM 4.x

[havidarou]

Description

Add ARM support to the Wazuh XDR+SIEM 4.x Docker images by migrating all components to multi-platform (AMD64 + ARM64) Docker images.

We will not publish separate ARM-tagged images.
Instead, every existing image will transparently become multi-platform, enabling ARM support through Docker’s manifest system.

Only tests must explicitly run on both AMD64 and ARM64.

Documentation must be updated to state that Wazuh XDR+SIEM images now support ARM and Intel via multi-platform manifests.

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Functional Requirements

1. Multi-platform Docker images

   • Each current Intel-only image must be migrated to a multi-architecture image (AMD64 + ARM64) using Docker buildx manifests.
   • No separate -arm tags will be published.

2. Release process integration

   • The release pipeline must build and publish multi-platform images as part of the normal Wazuh XDR+SIEM release process, without altering the existing tag schema.

3. Docker deployment compatibility

   • All deployment samples in the Docker GitHub repository must work unchanged, with Docker automatically selecting the correct architecture.

4. Documentation updates

   • Official documentation must reflect that Docker images now support ARM and Intel through multi-platform builds.

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Non-functional Requirements

1. Compatibility

   • Images must provide equivalent performance, reliability, and features on ARM64 and AMD64.

2. Security

   • The same hardening, dependency versions, and vulnerability scanning must apply across architectures.

3. Maintainability

   • The multi-platform build workflow must fit seamlessly into the existing Intel-based pipeline with minimal extra operational cost.

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Implementation Restrictions

1. Documentation updates are handled by the Content team.
2. Multi-platform images must behave identically to the current Intel-only images (same base image, entrypoints, environment variables, config behavior).
3. QA must extend E2E testing to validate the multi-platform images on both AMD64 and ARM64.

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