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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018 Gábor Boskovits <boskovits@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu tests monitoring)
#:use-module (gnu services)
#:use-module (gnu services monitoring)
#:use-module (gnu services networking)
#:use-module (gnu system vm)
#:use-module (gnu tests)
#:use-module (guix gexp)
#:export (%test-prometheus-node-exporter))
;;;
;;; Prometheus Node Exporter
;;;
(define* (run-prometheus-node-exporter-server-test name test-os)
"Run tests in %PROMETHEUS-NODE-EXPORTER-OS, which has prometheus-node-exporter running."
(define os
(marionette-operating-system
test-os
#:imported-modules '((gnu services herd))))
(define vm
(virtual-machine
(operating-system os)
(port-forwardings '((8080 . 9100)))))
(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-node-exporter running"
(marionette-eval
'(begin
(use-modules (gnu services herd))
(match (start-service 'prometheus-node-exporter)
(#f #f)
(('service response-parts ...)
(match (assq-ref response-parts 'running)
((pid) (number? pid))))))
marionette))
(test-equal "http-get"
200
(begin
(wait-for-tcp-port 9100 marionette)
(let-values (((response text)
(http-get "http://localhost:8080")))
(response-code response))))
(test-end)
(exit (= (test-runner-fail-count (test-runner-current)) 0)))))
(gexp->derivation (string-append name "-test") test))
(define %prometheus-node-exporter-os
(simple-operating-system
(dhcp-client-service)
(service prometheus-node-exporter-service-type
(prometheus-node-exporter-configuration))))
(define %test-prometheus-node-exporter
(system-test
(name "prometheus-node-exporter")
(description "Connect to a running prometheus-node-exporter server.")
(value (run-prometheus-node-exporter-server-test
name %prometheus-node-exporter-os))))
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