fix: Suppress chown errors for bind-mounted directories on macOS #381
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When using Docker Desktop on macOS with bind-mounted host directories (e.g., ~/.claude:/home/automaker/.claude), the container cannot change file ownership because Docker runs in a Linux VM using a virtualized filesystem layer (virtiofs/grpcfuse). This caused hundreds of "Permission denied" errors on container startup for users with many files in their .claude/plugins/ directories. The fix adds error suppression (2>/dev/null || true) to chown and chmod commands. Files remain readable without ownership change, so this is safe.
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Summary of ChangesHello @KristjanPikhof, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed! This pull request resolves permission errors that occur when Docker containers, running on macOS, attempt to change ownership ( Highlights
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Code Review
This pull request aims to fix noisy chown errors on macOS when using bind mounts by suppressing the errors. While the intent is good, the current implementation of suppressing chown errors with || true is dangerous as it hides a fundamental permissions problem that will likely lead to runtime errors for the automaker user. I've left a critical comment explaining this issue. Additionally, I've pointed out some inconsistencies and security concerns with the accompanying chmod commands. My recommendation is to address the underlying permission issue rather than silencing the errors.
| chown -R automaker:automaker /home/automaker/.claude 2>/dev/null || true | ||
| chmod 700 /home/automaker/.claude 2>/dev/null || true | ||
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| # Ensure Cursor CLI config directory exists with correct permissions | ||
| # This handles both: mounted volumes (owned by root) and empty directories | ||
| if [ ! -d "/home/automaker/.cursor" ]; then | ||
| mkdir -p /home/automaker/.cursor | ||
| fi | ||
| chown -R automaker:automaker /home/automaker/.cursor | ||
| chmod -R 700 /home/automaker/.cursor | ||
| # Suppress errors for bind-mounted host directories (macOS can't change ownership) | ||
| chown -R automaker:automaker /home/automaker/.cursor 2>/dev/null || true |
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Suppressing chown errors with || true is dangerous as it can lead to silent failures at runtime. If chown fails on a bind-mounted directory, files created by root earlier in this script (like .credentials.json) will remain owned by root. When the container switches to the automaker user, it won't be able to access these files if they have restrictive permissions (e.g., 600), causing the application to fail unexpectedly. The chown error is a critical signal that the application will not have the permissions it needs. Instead of hiding the error, the permission issue needs to be addressed.
docker-entrypoint.sh
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| chmod 700 /home/automaker/.claude 2>/dev/null || true | ||
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| # Ensure Cursor CLI config directory exists with correct permissions | ||
| # This handles both: mounted volumes (owned by root) and empty directories | ||
| if [ ! -d "/home/automaker/.cursor" ]; then | ||
| mkdir -p /home/automaker/.cursor | ||
| fi | ||
| chown -R automaker:automaker /home/automaker/.cursor | ||
| chmod -R 700 /home/automaker/.cursor | ||
| # Suppress errors for bind-mounted host directories (macOS can't change ownership) | ||
| chown -R automaker:automaker /home/automaker/.cursor 2>/dev/null || true | ||
| chmod -R 700 /home/automaker/.cursor 2>/dev/null || true |
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The chmod commands for .claude and .cursor are inconsistent and potentially insecure.
- The command for
.claude(line 19) is not recursive, while the one for.cursor(line 28) is. - Using
chmod -R 700(line 28) is insecure as it makes all files executable. Config/credential files should be600.
For better security and consistency, I recommend setting permissions granularly for both directories. For example:
find /home/automaker/.cursor -type d -exec chmod 700 {} +
find /home/automaker/.cursor -type f -exec chmod 600 {} +This ensures directories are traversable (700) and files are not executable (600). The error suppression could then be added to these commands if needed.
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Actionable comments posted: 1
Caution
Some comments are outside the diff and can’t be posted inline due to platform limitations.
⚠️ Outside diff range comments (1)
docker-entrypoint.sh (1)
42-43: Missing error suppression on line 43 creates inconsistency.Line 43's
chownoperation on/home/automaker/.configlacks error suppression, which is inconsistent with the approach taken for.claude(line 18) and.cursor(line 27). If.configis bind-mounted from the host on macOS, this command will fail and cause the script to exit due toset -e.While line 42's
chmodon the newly created file should typically succeed, line 43 could fail in the same scenarios that motivated this PR.🔧 Suggested fix for consistency
chmod 600 "$CURSOR_CONFIG_DIR/auth.json" - chown -R automaker:automaker /home/automaker/.config + chown -R automaker:automaker /home/automaker/.config 2>/dev/null || trueConsider also adding error suppression to line 42 for completeness:
- chmod 600 "$CURSOR_CONFIG_DIR/auth.json" + chmod 600 "$CURSOR_CONFIG_DIR/auth.json" 2>/dev/null || true
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In @docker-entrypoint.sh:
- Around line 17-19: The chmod for the .claude directory is non-recursive while
.cursor is recursive, causing inconsistent permissions; update the chmod call
that references /home/automaker/.claude in the docker-entrypoint.sh to use the
recursive flag (chmod -R 700) and keep the existing error-suppressing
redirection and || true behavior so both configuration directories
(/home/automaker/.claude and /home/automaker/.cursor) are handled consistently
and securely.
🧹 Nitpick comments (1)
docker-entrypoint.sh (1)
13-13: Consider adding error suppression forchmodon credentials file.If
.claudeis bind-mounted and the.credentials.jsonfile already exists on the host, thechmodoperation may fail on macOS due to the same virtualized filesystem limitations. Although the file is written by the script (line 12) which should succeed, the subsequentchmodcould fail if the file was pre-existing or if the bind mount prevents permission changes.For consistency with the error suppression approach applied elsewhere, consider adding error suppression here as well.
♻️ Suggested enhancement
- chmod 600 /home/automaker/.claude/.credentials.json + chmod 600 /home/automaker/.claude/.credentials.json 2>/dev/null || true
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docker-entrypoint.sh
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🧠 Learnings (1)
📓 Common learnings
Learnt from: webdevcody
Repo: AutoMaker-Org/automaker PR: 378
File: apps/server/src/lib/sdk-options.ts:141-148
Timestamp: 2026-01-07T15:20:53.127Z
Learning: AutoMaker intentionally uses `permissionMode: 'bypassPermissions'` with `allowDangerouslySkipPermissions: true` in base SDK options for fully autonomous operation. This is an accepted architectural decision, with Docker containerization as the primary security boundary.
🔇 Additional comments (1)
docker-entrypoint.sh (1)
26-28: LGTM! Consistent error suppression for Cursor config directory.The recursive chown and chmod operations with error suppression are correctly implemented. This section properly handles both the ownership and permissions for the entire directory tree while gracefully handling macOS bind mount limitations.
- Add error suppression to chmod on .credentials.json (line 13) - Make chmod recursive for .claude directory for consistency (line 19) - Add error suppression to chmod/chown for .config directory (lines 42-43) All chmod/chown operations now consistently handle macOS bind mount limitations where permission changes are not possible.
2 participants
Summary
Fixes permission errors when running Docker with bind-mounted host directories on macOS.
chowncommands for.claudedirectorychowncommands for.cursordirectoryProblem
When using
docker-compose.override.ymlto bind-mount host directories:- ~/.claude:/home/automaker/.claudeThe container startup logs showed hundreds of errors:
Root Cause
Docker Desktop on macOS runs containers in a Linux VM using a virtualized filesystem layer (virtiofs/grpcfuse). When bind-mounting directories from the macOS host:
The container cannot change ownership of bind-mounted files because they're managed by Docker's filesystem virtualization layer.
Solution
Add
2>/dev/null || trueto suppress errors:This is safe because:
Test Plan
~/.claudedirectory on macOSSummary by CodeRabbit
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