[None][chore] reduce the layers of the devel docker image

[MartinMarciniszyn]

Summary by CodeRabbit

• Refactor
  • Consolidated Docker installation steps into multi-command runs to reduce build layers and optimize build time
  • Added conditional component installation based on system type
  • Improved cleanup of installation scripts for a smaller image footprint

Description

Test Coverage

PR Checklist

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• PR description clearly explains what and why. If using CodeRabbit's summary, please make sure it makes sense.

• PR Follows TRT-LLM CODING GUIDELINES to the best of your knowledge.

• Test cases are provided for new code paths (see test instructions)

• Any new dependencies have been scanned for license and vulnerabilities

• CODEOWNERS updated if ownership changes

• Documentation updated as needed

• Update tava architecture diagram if there is a significant design change in PR.

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• Please check this after reviewing the above items as appropriate for this PR.

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[coderabbitai]

📝 Walkthrough

Walkthrough

Consolidates multiple Docker RUN instructions into fewer, larger steps by combining sequential component installations (base, cmake, ccache, cuda_toolkit, tensorrt, polygraphy, mpi4py, pytorch, opencv) into single RUN commands. Introduces TORCH_INSTALL_TYPE ARG earlier in the devel stage, groups UCX/NIXL/etcd installations together, adds conditional mooncake installation in the triton stage for non-Rocky8 systems, and reduces image layers through batch cleanup of installer scripts.

Changes

Cohort / File(s)

Summary

Docker multi-stage build consolidation docker/Dockerfile.multi

Consolidates base component installations (base, cmake, ccache, cuda_toolkit, tensorrt, polygraphy, mpi4py, pytorch, opencv) from separate RUN steps into single multi-command RUN. Introduces TORCH_INSTALL_TYPE ARG threading. Groups UCX, NIXL, etcd installations into dedicated RUN. Adds mooncake installation to triton stage with conditional execution (non-Rocky8 only). Adjusts COPY to include install_mooncake.sh. Updates cleanup to batch-remove installer scripts, reducing Docker layers.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

• Build order verification: Ensure consolidated command sequences maintain correct dependency ordering and no circular dependencies are introduced.
• Conditional mooncake logic: Verify the Rocky8 condition (if [ "$os_release" != "8" ] or equivalent) executes correctly and cleanup follows both branches.
• Layer caching impact: Confirm consolidation doesn't negatively affect layer caching strategy for incremental builds.
• Script removal timing: Validate that batch removal of installer scripts doesn't occur prematurely before their execution completes.

Pre-merge checks and finishing touches

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The PR description is essentially empty, containing only the template structure with no actual content filled in the Description or Test Coverage sections.	Fill in the Description section explaining what changes were made and why (e.g., consolidating Docker RUN steps to reduce image layers). Add Test Coverage section listing relevant tests that validate the Docker image builds correctly.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Title check	✅ Passed	The title clearly and specifically identifies the main change: consolidating Docker RUN steps to reduce layers in the devel image.

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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[MartinMarciniszyn]

/bot run --stage-list "Build-Docker-Images"

[tensorrt-cicd]

PR_Github #24295 [ run ] triggered by Bot. Commit: 7d1b18c

[tensorrt-cicd]

PR_Github #24295 [ run ] completed with state FAILURE. Commit: 7d1b18c
/LLM/main/L0_MergeRequest_PR pipeline #18329 (Partly Tested) completed with status: 'FAILURE'

[MartinMarciniszyn]

/bot run --stage-list "Build-Docker-Images"

[tensorrt-cicd]

PR_Github #24485 [ run ] triggered by Bot. Commit: 5a6246a

[tensorrt-cicd]

PR_Github #24485 [ run ] completed with state ABORTED. Commit: 5a6246a
LLM/main/L0_MergeRequest_PR #18480 (Blue Ocean) completed with status: ABORTED

[MartinMarciniszyn]

/bot run --stage-list "Build-Docker-Images"

[tensorrt-cicd]

PR_Github #24585 [ run ] triggered by Bot. Commit: 99dca35

[MartinMarciniszyn]

/bot run

[tensorrt-cicd]

PR_Github #24593 [ run ] triggered by Bot. Commit: a403a49

[tensorrt-cicd]

PR_Github #24585 [ run ] completed with state ABORTED. Commit: 99dca35
LLM/main/L0_MergeRequest_PR #18557 (Blue Ocean) completed with status: ABORTED

[tensorrt-cicd]

PR_Github #24593 [ run ] completed with state SUCCESS. Commit: a403a49
/LLM/main/L0_MergeRequest_PR pipeline #18564 completed with status: 'SUCCESS'