services: Add mympd-service-type.

* gnu/services/audio.scm (mympd-service-type): New variable.
* gnu/tests/audio.scm (%test-mympd): New variable.
* doc/guix.texi: Document it.

Signed-off-by: Liliana Marie Prikler <liliana.prikler@gmail.com>

1 files changed, 120 insertions, 0 deletions

diff --git a/doc/guix.texi b/doc/guix.texi
index e7d56f2504..359c9b7a47 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -113,6 +113,7 @@ Copyright @copyright{} 2022 Bruno Victal@*
 Copyright @copyright{} 2022 Ivan Vilata-i-Balaguer@*
 Copyright @copyright{} 2023 Giacomo Leidi@*
 Copyright @copyright{} 2022 Antero Mejr@*
+Copyright @copyright{} 2022 Bruno Victal@*
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or
@@ -33396,6 +33397,125 @@ configures some of its plugins and provides a HTTP audio streaming output.
                         (extra-options `((type . 0)))))))
 @end lisp
 
+@subsubheading myMPD
+
+@cindex MPD, web interface
+@cindex myMPD service
+
+@uref{https://jcorporation.github.io/myMPD/, myMPD} is a web server
+frontend for MPD that provides a mobile friendly web client for MPD.
+
+The following example shows a myMPD instance listening on port 80,
+with album cover caching disabled.
+
+@lisp
+(service mympd-service-type
+         (mympd-configuration
+          (port 80)
+          (covercache-ttl 0)))
+@end lisp
+
+@defvar mympd-service-type
+The service type for @command{mympd}.
+@end defvar
+
+@c %start of fragment
+@deftp {Data Type} mympd-configuration
+Available @code{mympd-configuration} fields are:
+
+@table @asis
+@item @code{package} (default: @code{mympd}) (type: file-like)
+The package object of the myMPD server.
+
+@item @code{shepherd-requirement} (default: @code{()}) (type: list-of-symbol)
+This is a list of symbols naming Shepherd services that this service
+will depend on.
+
+@item @code{user} (default: @code{"mympd"}) (type: string)
+Owner of the @command{mympd} process.
+
+@item @code{group} (default: @code{"nogroup"}) (type: string)
+Owner group of the @command{mympd} process.
+
+@item @code{work-directory} (default: @code{"/var/lib/mympd"}) (type: string)
+Where myMPD will store its data.
+
+@item @code{cache-directory} (default: @code{"/var/cache/mympd"}) (type: string)
+Where myMPD will store its cache.
+
+@item @code{acl} (type: maybe-mympd-ip-acl)
+ACL to access the myMPD webserver.
+
+@item @code{covercache-ttl} (default: @code{31}) (type: maybe-integer)
+How long to keep cached covers, @code{0} disables cover caching.
+
+@item @code{http?} (default: @code{#t}) (type: boolean)
+HTTP support.
+
+@item @code{host} (default: @code{"[::]"}) (type: string)
+Host name to listen on.
+
+@item @code{port} (default: @code{80}) (type: maybe-port)
+HTTP port to listen on.
+
+@item @code{log-level} (default: @code{5}) (type: integer)
+How much detail to include in logs, possible values: @code{0} to
+@code{7}.
+
+@item @code{log-to} (default: @code{"/var/log/mympd/log"}) (type: string-or-symbol)
+Where to send logs.  By default, the service logs to
+@file{/var/log/mympd.log}.  The alternative is @code{'syslog}, which
+sends output to the running syslog service under the @samp{daemon}
+facility.
+
+@item @code{lualibs} (default: @code{"all"}) (type: maybe-string)
+See
+@uref{https://jcorporation.github.io/myMPD/scripting/#lua-standard-libraries}.
+
+@item @code{uri} (type: maybe-string)
+Override URI to myMPD.  See
+@uref{https://github.com/jcorporation/myMPD/issues/950}.
+
+@item @code{script-acl} (default: @code{(mympd-ip-acl (allow '("127.0.0.1")))}) (type: maybe-mympd-ip-acl)
+ACL to access the myMPD script backend.
+
+@item @code{ssl?} (default: @code{#f}) (type: boolean)
+SSL/TLS support.
+
+@item @code{ssl-port} (default: @code{443}) (type: maybe-port)
+Port to listen for HTTPS.
+
+@item @code{ssl-cert} (type: maybe-string)
+Path to PEM encoded X.509 SSL/TLS certificate (public key).
+
+@item @code{ssl-key} (type: maybe-string)
+Path to PEM encoded SSL/TLS private key.
+
+@item @code{pin-hash} (type: maybe-string)
+SHA-256 hashed pin used by myMPD to control settings access by prompting
+a pin from the user.
+
+@item @code{save-caches?} (type: maybe-boolean)
+Whether to preserve caches between service restarts.
+
+@end table
+@end deftp
+@c %end of fragment
+
+@c %start of fragment
+@deftp {Data Type} mympd-ip-acl
+Available @code{mympd-ip-acl} fields are:
+
+@table @asis
+@item @code{allow} (default: @code{()}) (type: list-of-string)
+Allowed IP addresses.
+
+@item @code{deny} (default: @code{()}) (type: list-of-string)
+Disallowed IP addresses.
+
+@end table
+@end deftp
+@c %end of fragment
 
 @node Virtualization Services
 @subsection Virtualization Services