Copyright @copyright{} 2018 Rutger Helling@*
Copyright @copyright{} 2018 Oleg Pykhalov@*
Copyright @copyright{} 2018 Mike Gerwitz@*
-Copyright @copyright{} 2018 Pierre-Antoine Rouby
+Copyright @copyright{} 2018 Pierre-Antoine Rouby@*
+Copyright @copyright{} 2018 Gábor Boskovits@*
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
@end table
@end deftp
+@subsubheading Prometheus Node Exporter Service
+
+@cindex prometheus-node-exporter
+The Prometheus ``node exporter'' makes hardware and operating system statistics
+provided by the Linux kernel available for the Prometheus monitoring system.
+This service should be deployed on all physical nodes and virtual machines,
+where monitoring these statistics is desirable.
+
+@defvr {Scheme variable} prometheus-node-exporter-service-type
+This is the service type for the
+@uref{https://github.com/prometheus/node_exporter/, prometheus-node-exporter}
+service, its value must be a @code{prometheus-node-exporter-configuration}
+record as in this example:
+
+@example
+(service prometheus-node-exporter-service-type
+ (prometheus-node-exporter-configuration
+ (web-listen-address ":9100")))
+@end example
+@end defvar
+
+@deftp {Data Type} prometheus-node-exporter-configuration
+Data type representing the configuration of @command{node_exporter}.
+
+@table @asis
+@item @code{package} (default: @code{go-github-com-prometheus-node-exporter})
+The prometheus-node-exporter package to use.
+
+@item @code{web-listen-address} (default: @code{":9100"})
+Bind the web interface to the specified address.
+
+@end table
+@end deftp
@node Kerberos Services
@subsubsection Kerberos Services
# Copyright © 2017 Tobias Geerinckx-Rice <me@tobias.gr>
# Copyright © 2017, 2018 Clément Lassieur <clement@lassieur.org>
# Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
-# Copyright © 2017 Gábor Boskovits <boskovits@gmail.com>
+# Copyright © 2017, 2018 Gábor Boskovits <boskovits@gmail.com>
# Copyright © 2018 Amirouche Boubekki <amirouche@hypermove.net>
# Copyright © 2018 Oleg Pykhalov <go.wigust@gmail.com>
#
%D%/tests/databases.scm \
%D%/tests/desktop.scm \
%D%/tests/dict.scm \
+ %D%/tests/monitoring.scm \
%D%/tests/nfs.scm \
%D%/tests/install.scm \
%D%/tests/mail.scm \
;;; Copyright © 2018 Sou Bunnbu <iyzsong@member.fsf.org>
;;; Copyright © 2017, 2018 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2018 Gábor Boskovits <boskovits@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018 Sou Bunnbu <iyzsong@member.fsf.org>
+;;; Copyright © 2018 Gábor Boskovits <boskovits@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
#:use-module (guix records)
#:use-module (ice-9 match)
#:export (darkstat-configuration
- darkstat-service-type))
+ prometheus-node-exporter-configuration
+ darkstat-service-type
+ prometheus-node-exporter-service-type))
\f
;;;
(const %darkstat-accounts))
(service-extension shepherd-root-service-type
(compose list darkstat-shepherd-service))))))
+
+(define-record-type* <prometheus-node-exporter-configuration>
+ prometheus-node-exporter-configuration
+ make-prometheus-node-exporter-configuration
+ prometheus-node-exporter-configuration?
+ (package prometheus-node-exporter-configuration-package
+ (default go-github-com-prometheus-node-exporter))
+ (web-listen-address prometheus-node-exporter-web-listen-address
+ (default ":9100")))
+
+(define prometheus-node-exporter-shepherd-service
+ (match-lambda
+ (( $ <prometheus-node-exporter-configuration>
+ package web-listen-address)
+ (shepherd-service
+ (documentation "Prometheus node exporter.")
+ (provision '(prometheus-node-exporter))
+ (requirement '(networking))
+ (start #~(make-forkexec-constructor
+ (list #$(file-append package "/bin/node_exporter")
+ "--web.listen-address" #$web-listen-address)))
+ (stop #~(make-kill-destructor))))))
+
+(define prometheus-node-exporter-service-type
+ (service-type
+ (name 'prometheus-node-exporter)
+ (description
+ "Run @command{node_exporter} to serve hardware and OS metrics to
+prometheus.")
+ (extensions
+ (list (service-extension
+ shepherd-root-service-type
+ (compose list prometheus-node-exporter-shepherd-service))))))
--- /dev/null
+;;; 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))
+
+\f
+;;;
+;;; 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))))
HCoop / jackhill / guix / guix.git / commitdiff