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analyze-docker-build-errors

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Analyzes Docker build errors for PHP projects. Identifies extension compilation failures, dependency issues, memory limits, and provides fixes.

skills/analyze-docker-build-errors/SKILL.md

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# Docker Build Error Analysis

Analyze Dockerfile and build logs for PHP project build failures and provide targeted fixes.

## Common Build Error Patterns

| Error Category | Symptom | Root Cause |
|----------------|---------|------------|
| Extension compilation | `configure: error: ...` | Missing dev packages |
| Package not found | `E: Unable to locate package` | Wrong package name for base image |
| Permission denied | `COPY failed: permission denied` | File ownership or Docker socket |
| Memory exhausted | `Allowed memory size exhausted` | Composer or PHP memory limit |
| Context too large | `sending build context... 2GB` | Missing .dockerignore |
| Multi-stage failure | `COPY --from=builder ... not found` | Wrong stage name or path |