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/gnu/tests/high-availability.scm b/gnu/tests/high-availability.scm
index faa657bfc3c..0b0e9b3685f 100644
--- a/gnu/tests/high-availability.scm
+++ b/gnu/tests/high-availability.scm
@@ -120,6 +120,7 @@ distribution.listener.interface = 127.0.0.1
 
 (define %rabbitmq-os
   (simple-operating-system
+    (service epmd-service-type)
     (service rabbitmq-service-type
              (rabbitmq-configuration (node-name "rabbit@komputilo")
                                      (config-file %rabbitmq-config-file)))))