services: openssh: Add 'log-level' field.

* gnu/services/ssh.scm (<openssh-configuration>)[log-level]: New field.
(openssh-config-file): Honor it.
* doc/guix.texi (Networking Services): Document it.

1 files changed, 6 insertions, 0 deletions

diff --git a/doc/guix.texi b/doc/guix.texi
index 3a3368b78f..cd0e74a2d7 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -11782,6 +11782,12 @@ Additional authorized keys can be specified @i{via}
 
 Note that this does @emph{not} interfere with the use of
 @file{~/.ssh/authorized_keys}.
+
+@item @code{log-level} (default: @code{'info})
+This is a symbol specifying the logging level: @code{quiet}, @code{fatal},
+@code{error}, @code{info}, @code{verbose}, @code{debug}, etc.  See the man
+page for @file{sshd_config} for the full list of level names.
+
 @end table
 @end deftp