services: Add Laminar.

* gnu/services/ci.scm: New file.
* gnu/tests/ci.scm: New file.
* doc/guix.texi (Laminar): Document the Laminar service.

2 files changed, 255 insertions, 0 deletions

diff --git a/gnu/services/ci.scm b/gnu/services/ci.scm
new file mode 100644
index 0000000000..0b18521e76
--- /dev/null
+++ b/gnu/services/ci.scm
@@ -0,0 +1,127 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2018, 2019, 2020, 2021 Christopher Baines <mail@cbaines.net>
+;;;
+;;; 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 services ci)
+  #:use-module (guix gexp)
+  #:use-module (guix records)
+  #:use-module (gnu packages admin)
+  #:use-module (gnu packages ci)
+  #:use-module (gnu services)
+  #:use-module (gnu services base)
+  #:use-module (gnu services shepherd)
+  #:use-module (gnu services admin)
+  #:use-module (gnu system shadow)
+  #:use-module (ice-9 match)
+  #:export (laminar-configuration
+            laminar-configuration?
+            laminar-configuration-home-directory
+            laminar-configuration-bind-http
+            laminar-configuration-bind-rpc
+            laminar-configuration-title
+            laminar-configuration-keep-rundirs
+            laminar-configuration-archive-url
+            laminar-configuration-base-url
+
+            laminar-service-type))
+
+;;;; Commentary:
+;;;
+;;; This module implements a service that to run instances of Laminar, a
+;;; continuous integration tool.
+;;;
+;;;; Code:
+
+(define-record-type* <laminar-configuration>
+  laminar-configuration make-laminar-configuration
+  laminar-configuration?
+  (laminar          laminars-configuration-laminar
+                    (default laminar))
+  (home-directory   laminar-configuration-home-directory
+                    (default "/var/lib/laminar"))
+  (bind-http        laminar-configuration-bind-http
+                    (default "*:8080"))
+  (bind-rpc         laminar-configuration-bind-rpc
+                    (default "unix-abstract:laminar"))
+  (title            laminar-configuration-title
+                    (default "Laminar"))
+  (keep-rundirs     laminar-keep-rundirs
+                    (default 0))
+  (archive-url      laminar-archive-url
+                    (default #f))
+  (base-url         laminar-base-url
+                    (default #f)))
+
+(define laminar-shepherd-service
+  (match-lambda
+    (($ <laminar-configuration> laminar home-directory
+                                bind-http bind-rpc
+                                title keep-rundirs archive-url
+                                base-url)
+     (list (shepherd-service
+            (documentation "Run Laminar.")
+            (provision '(laminar))
+            (requirement '(networking))
+            (start #~(make-forkexec-constructor
+                      (list #$(file-append laminar "/sbin/laminard"))
+                      #:environment-variables
+                      `(,(string-append "LAMINAR_HOME="
+                                        #$home-directory)
+                        ,(string-append "LAMINAR_BIND_HTTP="
+                                        #$bind-http)
+                        ,(string-append "LAMINAR_TITLE="
+                                        #$title)
+                        ,(string-append "LAMINAR_KEEP_RUNDIRS="
+                                        #$(number->string
+                                           keep-rundirs))
+                        ,@(if #$archive-url
+                              (list
+                               (string-append "LAMINAR_ARCHIVE_URL="
+                                              #$archive-url))
+                              '())
+                        ,@(if #$base-url
+                              (list
+                               (string-append "LAMINAR_BASE_URL="
+                                              #$base-url))
+                              '()))
+                      #:user "laminar"
+                      #:group "laminar"))
+            (stop #~(make-kill-destructor)))))))
+
+(define (laminar-account config)
+  "Return the user accounts and user groups for CONFIG."
+  (list (user-group
+         (name "laminar")
+         (system? #t))
+        (user-account
+         (name "laminar")
+         (group "laminar")
+         (system? #t)
+         (comment "Laminar privilege separation user")
+         (home-directory (laminar-configuration-home-directory config))
+         (shell #~(string-append #$shadow "/sbin/nologin")))))
+
+(define laminar-service-type
+  (service-type
+   (name 'laminar)
+   (extensions
+    (list
+     (service-extension shepherd-root-service-type laminar-shepherd-service)
+     (service-extension account-service-type laminar-account)))
+   (default-value (laminar-configuration))
+   (description
+    "Run the Laminar continuous integration service.")))
diff --git a/gnu/tests/ci.scm b/gnu/tests/ci.scm
new file mode 100644
index 0000000000..a8b39fcd01
--- /dev/null
+++ b/gnu/tests/ci.scm
@@ -0,0 +1,128 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2017 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2017, 2018, 2019, 2020, 2021 Christopher Baines <mail@cbaines.net>
+;;; Copyright © 2017, 2018 Clément Lassieur <clement@lassieur.org>
+;;; Copyright © 2018 Pierre-Antoine Rouby <pierre-antoine.rouby@inria.fr>
+;;; Copyright © 2018 Marius Bakke <mbakke@fastmail.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 ci)
+  #:use-module (gnu tests)
+  #:use-module (gnu system)
+  #:use-module (gnu system file-systems)
+  #:use-module (gnu system shadow)
+  #:use-module (gnu system vm)
+  #:use-module (gnu services)
+  #:use-module (gnu services ci)
+  #:use-module (gnu services web)
+  #:use-module (gnu services networking)
+  #:use-module (guix gexp)
+  #:use-module (guix store)
+  #:export (%test-laminar))
+
+
+(define %laminar-os
+  ;; Operating system under test.
+  (simple-operating-system
+   (service dhcp-client-service-type)
+   (service laminar-service-type)))
+
+(define* (run-laminar-test #:optional (http-port 8080))
+  "Run tests in %LAMINAR-OS, which has laminar running and listening on
+HTTP-PORT."
+  (define os
+    (marionette-operating-system
+     %laminar-os
+     #:imported-modules '((gnu services herd)
+                          (guix combinators))))
+
+  (define vm
+    (virtual-machine
+     (operating-system os)
+     (port-forwardings `((,http-port . 8080)))))
+
+  (define test
+    (with-imported-modules '((gnu build marionette))
+      #~(begin
+          (use-modules (srfi srfi-11) (srfi srfi-64)
+                       (ice-9 match)
+                       (gnu build marionette)
+                       (web uri)
+                       (web client)
+                       (web response))
+
+          (define marionette
+            ;; Forward the guest's HTTP-PORT, where laminar is listening, to
+            ;; port 8080 in the host.
+            (make-marionette (list #$vm)))
+
+          (mkdir #$output)
+          (chdir #$output)
+
+          (test-begin "laminar")
+
+          (test-assert "service running"
+            (marionette-eval
+             '(begin
+                (use-modules (gnu services herd))
+                (start-service 'laminar))
+             marionette))
+
+          (define* (retry-on-error f #:key times delay)
+            (let loop ((attempt 1))
+              (match (catch
+                      #t
+                      (lambda ()
+                        (cons #t
+                              (f)))
+                      (lambda args
+                        (cons #f
+                              args)))
+                ((#t . return-value)
+                 return-value)
+                ((#f . error-args)
+                 (if (>= attempt times)
+                     error-args
+                     (begin
+                       (sleep delay)
+                       (loop (+ 1 attempt))))))))
+
+          (test-equal "http-get"
+            200
+            (retry-on-error
+             (lambda ()
+               (let-values (((response text)
+                             (http-get #$(format
+                                          #f
+                                          "http://localhost:~A/"
+                                          http-port)
+                                       ;; TODO: Why does decoding fail?
+                                       #:decode-body? #f)))
+                 (response-code response)))
+             #:times 10
+             #:delay 5))
+
+          (test-end)
+          (exit (= (test-runner-fail-count (test-runner-current)) 0)))))
+
+  (gexp->derivation "laminar-test" test))
+
+(define %test-laminar
+  (system-test
+   (name "laminar")
+   (description "Connect to a running Laminar server.")
+   (value (run-laminar-test))))