Implement selective /usr/lib mounting for shared libraries

[Copilot]

Binaries mounted from /usr/bin (date, gh, yq) into the AWF container fail with "library not found" errors because shared libraries aren't available.

Changes

• New file pkg/workflow/library_mounts.go: Shared library mounting logic

  • GetLibraryMounts() returns AWF mount args for /usr/lib/x86_64-linux-gnu:ro
  • Only mounts the x86_64-linux-gnu directory (standard location on Ubuntu runners)

• Modified pkg/workflow/copilot_engine_execution.go: Added library mounts after binary mounts

  awfArgs = append(awfArgs, "--mount", "/usr/bin/date:/usr/bin/date:ro")
  awfArgs = append(awfArgs, "--mount", "/usr/bin/gh:/usr/bin/gh:ro")
  awfArgs = append(awfArgs, "--mount", "/usr/bin/yq:/usr/bin/yq:ro")
  // Mount shared library directories required by the mounted binaries
  awfArgs = append(awfArgs, GetLibraryMounts()...)

• Claude/Codex engines: No changes needed—they don't mount /usr/bin binaries

Design

Chose selective mounting (Option B from issue) over mounting entire /usr/lib to minimize security surface. Libraries mounted read-only.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>[plan] Implement selective /usr/lib mounting for shared libraries</issue_title>
<issue_description>## Objective

Design and implement a mechanism to mount essential shared libraries from /usr/lib into the agent container to support utilities that depend on system libraries.

Context

The agent container currently mounts specific binaries from /usr/bin, but many utilities depend on shared libraries in /usr/lib and /usr/lib/x86_64-linux-gnu. Without these libraries, some utilities may fail with "library not found" errors.

Approach

1. Identify which mounted /usr/bin utilities require shared libraries (use ldd command)
2. Create a helper function to determine library dependencies for a given binary
3. Design a mounting strategy:
   • Option A: Mount entire /usr/lib (simple but large)
   • Option B: Mount only required library directories (more selective)
   • Option C: Copy required libraries to a shared location
4. Implement the chosen strategy in the engine files (copilot_engine_execution.go, claude_engine.go, codex_engine.go)
5. Add tests to verify library mounting works correctly

Files to Modify

• Modify: pkg/workflow/copilot_engine_execution.go (add library mounts)
• Modify: pkg/workflow/claude_engine.go (add library mounts)
• Modify: pkg/workflow/codex_engine.go (add library mounts)
• Create: pkg/workflow/library_mounts.go (shared library mounting logic)
• Create: pkg/workflow/library_mounts_test.go (test library detection)

Acceptance Criteria

• Shared library dependencies are correctly identified for all mounted binaries
• Library mounting mechanism works across all engine types (copilot, claude, codex)
• Tests verify that mounted binaries can execute successfully
• Documentation explains the library mounting approach and tradeoffs
• Implementation minimizes security surface area (avoid mounting unnecessary libraries)
  Related to epic: build/test environment for agentic workflow #11970

AI generated by Plan Command for #11970

Comments on the Issue (you are @copilot in this section)

• Fixes [plan] Implement selective /usr/lib mounting for shared libraries #11972

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Changeset

• Type: patch
• Description: Mount the shared libraries needed by the /usr/bin/date, gh, and yq binaries so they can run inside the AWF container without missing dependencies.

Ahoy! This treasure was crafted by 🏴‍☠️ Changeset Generator

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✨ The prophecy is fulfilled... Smoke Codex has completed its mystical journey. The stars align. 🌟

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🎉 Yo ho ho! Changeset Generator found the treasure and completed successfully! ⚓💰

[github-actions]

📰 BREAKING: Smoke Copilot is now investigating this pull request. Sources say the story is developing...

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🎬 THE END — Smoke Claude MISSION: ACCOMPLISHED! The hero saves the day! ✨

[github-actions]

Smoke test results:

• PR list: ✅
  • [WIP] Fix test failures when running make test
  • Enable campaign orchestrator generation via project field detection
• GitHub MCP merged PRs: ✅
• Serena activate: ✅
• Playwright title check: ✅
• Tavily search: ✅
• File write/read: ✅
• Discussion query/comment: ✅
  Overall status: PASS

AI generated by Smoke Codex

[github-actions]

Smoke Test Results: ✅ PASS

• ✅ GitHub MCP (Fix AWF command quoting to ensure agent runs inside firewall container #11969, Add project frontmatter field for automatic project board tracking #12046)
• ✅ Safe Inputs GH CLI (Fix test failures when running make test #12055, Add project field with campaign orchestration support to workflows #12053)
• ✅ Serena MCP
• ✅ Playwright
• ✅ File Writing
• ✅ Bash Tool
• ✅ Discussion Interaction

@Mossaka @Copilot

AI generated by Smoke Copilot

[github-actions]

📰 VERDICT: Smoke Copilot has concluded. All systems operational. This is a developing story. 🎤

[github-actions]

✅ GitHub MCP: PR #8, PR #10
✅ GH CLI: PR #12055, PR #12053
✅ Serena: Activated
✅ Make: Build successful
✅ Playwright: Verified
✅ Tavily: 3 results
✅ File I/O: Verified
✅ Bash: Verified
✅ Discussion: #12049

PASS - §21407075824

AI generated by Smoke Claude

[Mossaka]

Closing this PR since it should be built on top of #12062