infrastructure-docker-config-supervisord-fails-to-parse-etc-supervisor-conf-d-s-67838506

THEN Ensure the supervisord.conf file has no stray newline characters within entries. Escape or remove trailing newlines inside quoted strings. Validate the configuration with a parser before building the Docker image. The fix removes or properly escapes the newlines to make the config valid.

In supervisord.conf, avoid raw newlines inside command strings. Use \
 or break lines with backslash-newline only where intended. Example:
[program:myapp]
command=python /app/run.py  # No trailing newline inside this line