Write the selected field to a mode-0600 temp file, inject FIELD_FILE for
the child only, then overwrite and unlink on every exit path. The value
is not copied into the child environment.
Assistant: grok
Assistant-Session: 01a05f07-ae72-7781-9fcb-19efd61add00
secrets-engine wrap writes a single-use OpenBao wrap token to a mode-0600
out-of-repo file and never prints it. KV reads and AppRole secret_ids are
wrapped with a 15m TTL cap. Unwrapped secret payloads fail closed.
Production wrap remains fail-closed.
Assistant: grok
Assistant-Session: 01a05f07-ae72-7781-9fcb-19efd61add00
