From b7249aa4726193653e05e694ec4bb311aa4ec6c2 Mon Sep 17 00:00:00 2001 From: "Jan (janneke) Nieuwenhuizen" Date: Sat, 20 Jun 2020 10:04:30 +0200 Subject: services: childhurd: Support more than one instance. * gnu/services/virtualization.scm ()[options]: Remove "--hda" option. [id,net-options]: New fields. (hurd-vm-net-options): New procedure. Parameterize port forwarding with ID. * gnu/services/virtualization.scm (hurd-vm-shepherd-service): Use them. Parameterize provision with ID, if set. Hardcode "--hda" option for image. * doc/guix.texi (Virtualization Services): Document new fields. Update for hardcoding of "--hda". --- gnu/services/virtualization.scm | 43 ++++++++++++++++++++++++++++++----------- 1 file changed, 32 insertions(+), 11 deletions(-) (limited to 'gnu/services') diff --git a/gnu/services/virtualization.scm b/gnu/services/virtualization.scm index 4e96607680..1a15ffbd48 100644 --- a/gnu/services/virtualization.scm +++ b/gnu/services/virtualization.scm @@ -51,6 +51,10 @@ #:export (%hurd-vm-operating-system hurd-vm-configuration + hurd-vm-disk-image + hurd-vm-id + hurd-vm-net-options + hurd-vm-options hurd-vm-service-type libvirt-configuration @@ -832,14 +836,12 @@ functionality of the kernel Linux."))) (memory-size hurd-vm-configuration-memory-size ;number (default 512)) (options hurd-vm-configuration-options ;list of string - (default - `("--device" "rtl8139,netdev=net0" - "--netdev" ,(string-append - "user,id=net0" - ",hostfwd=tcp:127.0.0.1:20022-:2222" - ",hostfwd=tcp:127.0.0.1:25900-:5900") - "--snapshot" - "--hda")))) + (default `("--snapshot"))) + (id hurd-vm-configuration-id ;#f or integer [1..] + (default #f)) + (net-options hurd-vm-configuration-net-options ;list of string + (thunked) + (default (hurd-vm-net-options this-record)))) (define (hurd-vm-disk-image config) "Return a disk-image for the Hurd according to CONFIG." @@ -851,26 +853,45 @@ functionality of the kernel Linux."))) (size disk-size) (operating-system os))))) +(define (hurd-vm-net-options config) + (let ((id (or (hurd-vm-configuration-id config) 0))) + (define (qemu-vm-port base) + (number->string (+ base (* 1000 id)))) + `("--device" "rtl8139,netdev=net0" + "--netdev" ,(string-append + "user,id=net0" + ",hostfwd=tcp:127.0.0.1:" (qemu-vm-port 10022) "-:2222" + ",hostfwd=tcp:127.0.0.1:" (qemu-vm-port 15900) "-:5900")))) + (define (hurd-vm-shepherd-service config) "Return a for a Hurd in a Virtual Machine with CONFIG." (let ((image (hurd-vm-configuration-image config)) (qemu (hurd-vm-configuration-qemu config)) (memory-size (hurd-vm-configuration-memory-size config)) - (options (hurd-vm-configuration-options config))) + (options (hurd-vm-configuration-options config)) + (id (hurd-vm-configuration-id config)) + (net-options (hurd-vm-configuration-net-options config)) + (provisions '(hurd-vm childhurd))) (define vm-command #~(list (string-append #$qemu "/bin/qemu-system-i386") #$@(if (file-exists? "/dev/kvm") '("--enable-kvm") '()) "-m" (number->string #$memory-size) + #$@net-options #$@options - #+image)) + "--hda" #+image)) (list (shepherd-service (documentation "Run the Hurd in a Virtual Machine: a Childhurd.") - (provision '(hurd-vm childhurd)) + (provision (if id + (map + (cute symbol-append <> + (string->symbol (number->string id))) + provisions) + provisions)) (requirement '(networking)) (start #~(make-forkexec-constructor #$vm-command)) (stop #~(make-kill-destructor)))))) -- cgit v1.2.3