diff options
author | Jan (janneke) Nieuwenhuizen <janneke@gnu.org> | 2020-06-20 10:04:30 +0200 |
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committer | Jan Nieuwenhuizen <janneke@gnu.org> | 2020-06-21 12:51:36 +0200 |
commit | b7249aa4726193653e05e694ec4bb311aa4ec6c2 (patch) | |
tree | 105949f2685e603b97edef5d82c764bf175e03bc | |
parent | 512d23c65d82bb874ca1fb3c12095b1cec8bbfca (diff) |
services: childhurd: Support more than one instance.
* gnu/services/virtualization.scm (<hurd-vm-configuration>)[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".
-rw-r--r-- | doc/guix.texi | 35 | ||||
-rw-r--r-- | gnu/services/virtualization.scm | 43 |
2 files changed, 58 insertions, 20 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index 2268e159a2..5b854ccbd4 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -24728,12 +24728,31 @@ The size of the disk image. @item @code{memory-size} (default: @code{512}) The memory size of the Virtual Machine in mebibytes. -@item @code{options} (default: @code{'("--device"} @code{"rtl8139,netdev=net0"} @ - @code{"--netdev"} @ - @code{"user,id=net0,hostfwd=tcp:127.0.0.1:20022-:2222,hostfwd=tcp:127.0.0.1:25900-:5900"} @ - @code{"--snapshot"} @ - @code{"--hda")}) +@item @code{options} (default: @code{'("--snapshot")}) The extra options for running QEMU. + +@item @code{id} (default: @code{#f}) +If set, a non-zero positive integer used to parameterize Childhurd +instances. It is appended to the service's name, +e.g. @code{childhurd1}. + +@item @code{net-options} (default: @var{hurd-vm-net-options}) +The procedure used to produce the list of QEMU networking options. + +By default, it produces + +@lisp +'("--device" "rtl8139,netdev=net0" + "--netdev" "user,id=net0\ + ,hostfwd=tcp:127.0.0.1:<ssh-port>-:2222\ + ,hostfwd=tcp:127.0.0.1:<vnc-port>-:5900") +@end lisp +with forwarded ports +@example +<ssh-port>: @code{(+ 10022 (* 1000 @var{ID}))} +<vnc-port>: @code{(+ 15900 (* 1000 @var{ID}))} +@end example + @end table @end deftp @@ -24745,10 +24764,8 @@ the @code{--snapshot} flag using something along these lines: @lisp (service hurd-vm-service-type (hurd-vm-configuration - (image (const "/out/of/store/writable/hurd.img")) - (options '("--device" "rtl8139,netdev=net0" - "--netdev" - "user,id=net0,hostfwd=tcp:127.0.0.1:20022-:2222")))) + (image (const "/out/of/store/writable/hurd.img")) + (options '("--hda")))) @end lisp @node Version Control 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 <shepherd-service> 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)))))) |