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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2015 David Thompson <davet@gnu.org>
+;;;
+;;; 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 machines)
+  #:use-module (guix records)
+  #:use-module (gnu system)
+  #:use-module (gnu system vm)
+  #:use-module (ice-9 match)
+  #:use-module (srfi srfi-1)
+  #:export (deployment
+            make-deployment
+            deployment?
+            deployment-name
+            deployment-machines
+
+            machine
+            make-machine
+            machine?
+            machine-name
+            machine-system
+            machine-platform
+
+            platform
+            make-platform
+            platform-name
+            platform-description
+            platform-provision
+            platform-install
+            platform-reconfigure
+            platform-boot
+            platform-reboot
+            platform-halt
+            platform-destroy
+
+            machine-os-for-platform
+            provision-machine
+            boot-machine
+
+            local-vm))
+
+(define-record-type* <deployment> deployment
+  make-deployment
+  deployment?
+  (name deployment-name) ; string
+  (machines deployment-machines)) ; list of <machine>
+
+(define-record-type* <machine> machine
+  make-machine
+  machine?
+  (name machine-name) ; string
+  (system machine-system) ; <operating-system>
+  (platform machine-platform)) ; <platform>
+
+(define-record-type* <platform> platform
+  make-platform
+  platform?
+  (name platform-name) ; string
+  (description platform-description) ; string
+  (transform platform-transform) ; procedure
+  (provision platform-provision) ; procedure
+  ;; (install platform-install) ; procedure
+  ;; (reconfigure platform-reconfigure) ; procedure
+  (boot platform-boot) ; procedure
+  ;; (reboot platform-reboot) ; procedure
+  ;; (halt platform-halt) ; procedure
+  ;; (destroy platform-destroy) ; procedure
+  )
+
+(define (machine-os-for-platform machine)
+  ((platform-transform (machine-platform machine)) (machine-system machine)))
+
+(define (provision-machine machine)
+  (let ((os (machine-os-for-platform machine)))
+    ((platform-provision (machine-platform machine)) os)))
+
+(define (boot-machine machine state)
+  ((platform-boot (machine-platform machine)) state))
+
+(use-modules (guix monads)
+             (guix derivations)
+             (guix store)
+             (gnu services networking))
+
+(define* (local-vm #:key (ip-address "10.0.2.10")
+                   (disk-image-size (* 32 (expt 2 20))))
+  (platform
+   (name "local-vm")
+   (description "Local QEMU/KVM platform")
+   (transform
+    (lambda (os)
+      (let ((os (operating-system (inherit os)
+                  (services
+                   (cons
+                    (static-networking-service "eth0" ip-address
+                                               #:name-servers '("10.0.2.3")
+                                               #:gateway "10.0.2.2")
+                    (operating-system-user-services os))))))
+        (virtualized-operating-system os '()))))
+   (provision
+    (lambda (os)
+      (mlet %store-monad
+          ((vm-script (system-qemu-image/shared-store-script
+                       os #:disk-image-size disk-image-size)))
+        (mbegin %store-monad
+          (built-derivations (list vm-script))
+          (return (derivation-output-path
+                   (assoc-ref (derivation-outputs vm-script) "out")))))))
+   (boot
+    (lambda (script)
+      (match (primitive-fork)
+        (0 (primitive-exit (system* script)))
+        (pid #t))))))