1 files changed, 72 insertions, 1 deletions
diff --git a/gnu/tests/monitoring.scm b/gnu/tests/monitoring.scm
index 732fbc54d7..e8c0847229 100644
--- a/gnu/tests/monitoring.scm
+++ b/gnu/tests/monitoring.scm
@@ -31,11 +31,82 @@
   #:use-module (gnu system)
   #:use-module (gnu tests)
   #:use-module (guix gexp)
-  #:export (%test-prometheus-node-exporter
+  #:export (%test-prometheus
+            %test-prometheus-node-exporter
             %test-zabbix))
 
 
 ;;;
+;;; Prometheus
+;;;
+
+(define* (run-prometheus-test name test-os)
+  "Run tests in %TEST-OS, which has Prometheus running."
+  (define os
+    (marionette-operating-system
+     test-os
+     #:imported-modules '((gnu services herd))))
+
+  (define vm
+    (virtual-machine
+     (operating-system os)
+     (port-forwardings '((8080 . 9090)))))
+
+  (define test
+    (with-imported-modules '((gnu build marionette))
+      #~(begin
+          (use-modules (srfi srfi-11)
+                       (srfi srfi-64)
+                       (gnu build marionette)
+                       (web client)
+                       (web response))
+
+          (define marionette
+            (make-marionette (list #$vm)))
+
+          (mkdir #$output)
+          (chdir #$output)
+
+          (test-begin #$name)
+
+          (test-assert "prometheus running"
+            (marionette-eval
+             '(begin
+                (use-modules (gnu services herd))
+                (match (start-service 'prometheus)
+                  (#f #f)
+                  (('service response-parts ...)
+                   (match (assq-ref response-parts 'running)
+                     ((pid) (number? pid))))))
+             marionette))
+
+          (test-equal "prometheus healthy"
+            200
+            (begin
+              (wait-for-tcp-port 9090 marionette)
+              (let-values (((response text)
+                            (http-get "http://localhost:8080/-/healthy")))
+                (response-code response))))
+
+          (test-end)
+          (exit (= (test-runner-fail-count (test-runner-current)) 0)))))
+
+  (gexp->derivation (string-append name "-test") test))
+
+(define %prometheus-test-os
+  (simple-operating-system
+   (service dhcp-client-service-type)
+   (service prometheus-service-type)))
+
+(define %test-prometheus
+  (system-test
+   (name "prometheus")
+   (description "Connect to a running Prometheus service.")
+   (value (run-prometheus-test name
+                               %prometheus-test-os))))
+
+
+;;;
 ;;; Prometheus Node Exporter
 ;;;