The layout of the certificates directory used by
DirectoryStore (and thus
lets: endpoints) is coordinated with txsni to allow
sharing a certificates directory with other applications. The txsni and txacme
maintainers have committed to coordination of any future changes to the
contents of this directory to ensure continued compatibility.
At present, the following entries may exist in this directory:
A file containing a certificate and matching private key valid for
<server name>, serialized in PEM format.
A file containing an ACME client key, serialized in PEM format.
All other filenames are currently reserved for future use; introducing non-specified files or directories into a certificates directory may result in conflicts with items specified by future versions of txacme and/or txsni.