DL4004: Multiple ENTRYPOINT instructions found
Error Reliability
Why This Matters
Only the last ENTRYPOINT instruction takes effect. Multiple ENTRYPOINT instructions in a stage are almost always a mistake because the earlier ones are silently ignored. This is more critical than a duplicate CMD because ENTRYPOINT defines how the container starts. A wrong entrypoint means the container runs unexpected code.
How to Fix
Remove duplicate ENTRYPOINT instructions, keep only the final one
Before (incorrect)
ENTRYPOINT ["python", "app.py"]
ENTRYPOINT ["node", "server.js"]After (correct)
ENTRYPOINT ["node", "server.js"]Rule Details
- Rule Code
- DL4004
- Severity
- Error
- Category
- Reliability