services: guix: Add nar-herder-service-type.

* gnu/services/guix.scm (<nar-herder-configuration>): New record type.
(nar-herder-configuration, nar-herder-configuration?,
nar-herder-configuration-package,
nar-herder-configuration-user,
nar-herder-configuration-group,
nar-herder-configuration-mirror
nar-herder-configuration-database
nar-herder-configuration-database-dump
nar-herder-configuration-host
nar-herder-configuration-port
nar-herder-configuration-storage
nar-herder-configuration-storage-limit
nar-herder-configuration-storage-nar-removal-criteria
nar-herder-shepherd-services, nar-herder-activation,
nar-herder-account): New procedures.
(nar-herder-service-type): New variable.
* gnu/tests/guix.scm (%test-nar-herder): New variable.
* doc/guix.texi (Guix Services): Document the new service.

1 files changed, 79 insertions, 2 deletions

diff --git a/gnu/tests/guix.scm b/gnu/tests/guix.scm
index 69cac7c1aa..a4c3e35e5d 100644
--- a/gnu/tests/guix.scm
+++ b/gnu/tests/guix.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2019 Christopher Baines <mail@cbaines.net>
+;;; Copyright © 2019, 2020, 2021, 2022 Christopher Baines <mail@cbaines.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -36,7 +36,8 @@
   #:use-module (guix utils)
   #:use-module (ice-9 match)
   #:export (%test-guix-build-coordinator
-            %test-guix-data-service))
+            %test-guix-data-service
+            %test-nar-herder))
 
 ;;;
 ;;; Guix Build Coordinator
@@ -239,3 +240,79 @@ host	all	all	::1/128 	trust"))))))
    (name "guix-data-service")
    (description "Connect to a running Guix Data Service.")
    (value (run-guix-data-service-test))))
+
+
+;;;
+;;; Nar Herder
+;;;
+
+(define %nar-herder-os
+  (simple-operating-system
+   (service dhcp-client-service-type)
+   (service nar-herder-service-type
+            (nar-herder-configuration
+             (host "0.0.0.0")
+             ;; Not a realistic value, but works for the test
+             (storage "/tmp")))))
+
+(define (run-nar-herder-test)
+  (define os
+    (marionette-operating-system
+     %nar-herder-os
+     #:imported-modules '((gnu services herd)
+                          (guix combinators))))
+
+  (define forwarded-port
+    (nar-herder-configuration-port
+     (nar-herder-configuration)))
+
+  (define vm
+    (virtual-machine
+     (operating-system os)
+     (memory-size 1024)
+     (port-forwardings `((,forwarded-port . ,forwarded-port)))))
+
+  (define test
+    (with-imported-modules '((gnu build marionette))
+      #~(begin
+          (use-modules (srfi srfi-11) (srfi srfi-64)
+                       (gnu build marionette)
+                       (web uri)
+                       (web client)
+                       (web response))
+
+          (define marionette
+            (make-marionette (list #$vm)))
+
+          (test-runner-current (system-test-runner #$output))
+          (test-begin "nar-herder")
+
+          (test-assert "service running"
+            (marionette-eval
+             '(begin
+                (use-modules (gnu services herd))
+                (match (start-service 'nar-herder)
+                  (#f #f)
+                  (('service response-parts ...)
+                   (match (assq-ref response-parts 'running)
+                     ((pid) (number? pid))))))
+             marionette))
+
+          (test-equal "http-get"
+            404
+            (let-values
+                (((response text)
+                  (http-get #$(simple-format
+                               #f "http://localhost:~A/" forwarded-port)
+                            #:decode-body? #t)))
+              (response-code response)))
+
+          (test-end))))
+
+  (gexp->derivation "nar-herder-test" test))
+
+(define %test-nar-herder
+  (system-test
+   (name "nar-herder")
+   (description "Connect to a running Nar Herder server.")
+   (value (run-nar-herder-test))))