services: rabbitmq: Depend on epmd.

* gnu/services/high-availability.scm (rabbitmq-shepherd-service):
  Change requirement to epmd service.
* doc/gnu.texi (High Availability Services): Document it.
* gnu/tests/high-availability.scm (%rabbitmq-os): Add epmd service.

Merges: https://codeberg.org/guix/guix/pulls/9607
Signed-off-by: Nguyễn Gia Phong <cnx@loang.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/doc/guix.texi b/doc/guix.texi
index 12eca80ed3c..b34f0d1d3da 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -37811,6 +37811,7 @@ A simple example configuration is given below.
                       "rabbitmq_management"
                       "rabbitmq_prometheus"))))
 @end lisp
+This service depends on the @code{epmd} service.
 
 At startup, RabbitMQ broker logs its initialization messages into
 @file{/var/log/messages} file.  Once running, the logging messages can be