The compile_dockerfile function used \\\\ in Python string literals,
which produces \ (two backslashes) in the Dockerfile output. Docker's
legacy builder requires a single backslash \ for line continuation.
This caused 'unknown instruction: curl' because Docker saw the first as the continuation and the second \ as a literal character before the
newline, breaking the RUN command parsing.
Fix: change all \\ to \ in Python string literals within
compile_dockerfile, producing the correct single-backslash continuation.
Verified with hex dump from container logs:
- Before: line ended with 5c5c (two backslashes)
- After: line ends with 5c (one backslash)
Alex Blank
9800e37cd6