services: Add MongoDB.

* gnu/services/databases.scm (%default-mongodb-configuration-file,
  %mongodb-accounts, mongodb-service-type): New variables.
  (<mongodb-configuration>): New record type.
  (mongodb-activation, mongodb-shepherd-service): New procedures.
* gnu/tests/databases.scm (%test-mongodb): New variable.
* doc/guix.texi (Database Services): Add MongoDB documentation.

1 files changed, 26 insertions, 0 deletions

diff --git a/doc/guix.texi b/doc/guix.texi
index f0a59a6b4b..c10fc649d1 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -12120,6 +12120,32 @@ Additional command line options to pass to @code{memcached}.
 @end table
 @end deftp
 
+@defvr {Scheme Variable} mongodb-service-type
+This is the service type for @uref{https://www.mongodb.com/, MongoDB}.
+The value for the service type is a @code{mongodb-configuration} object.
+@end defvr
+
+@example
+(service mongodb-service-type)
+@end example
+
+@deftp {Data Type} mongodb-configuration
+Data type representing the configuration of mongodb.
+
+@table @asis
+@item @code{mongodb} (default: @code{mongodb})
+The MongoDB package to use.
+
+@item @code{config-file} (default: @code{%default-mongodb-configuration-file})
+The configuration file for MongoDB.
+
+@item @code{data-directory} (default: @code{"/var/lib/mongodb"})
+This value is used to create the directory, so that it exists and is
+owned by the mongodb user.  It should match the data-directory which
+MongoDB is configured to use through the configuration file.
+@end table
+@end deftp
+
 @defvr {Scheme Variable} redis-service-type
 This is the service type for the @uref{https://redis.io/, Redis}
 key/value store, whose value is a @code{redis-configuration} object.