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authorJakob L. Kreuze <zerodaysfordays@sdf.lonestar.org>2019-08-09 14:24:57 -0400
committerChristopher Lemmer Webber <cwebber@dustycloud.org>2019-08-14 15:38:09 -0400
commit2c8e04f13670c8c7ad8c7195c305960dd1905363 (patch)
tree3a019a797bd022b6907019512e44bf55602d7f1f /gnu/machine
parent67dac6b8920755cb011047157bb7b4fae4760143 (diff)
remote: Build derivations appropriate for the remote's
* gnu/machine/ssh.scm (machine-ssh-configuration): Add 'system' field. (managed-host-remote-eval): Pass 'system' field to 'remote-eval'. (machine-check-building-for-appropriate-system): New variable. (check-deployment-sanity): Add call to 'machine-check-building-for-appropriate-system'. * doc/guix.texi (Invoking guix deploy): Describe new 'system' field. * guix/ssh.scm (remote-system): New variable. * guix/remote.scm (remote-eval): Use result of 'remote-system' when lowering the G-Expression. (remote-eval): Add 'system' keyword argument. (trampoline): Return a <program-file> rather than a <scheme-file>.
Diffstat (limited to 'gnu/machine')
-rw-r--r--gnu/machine/ssh.scm31
1 files changed, 27 insertions, 4 deletions
diff --git a/gnu/machine/ssh.scm b/gnu/machine/ssh.scm
index ba3e33c922..670990a633 100644
--- a/gnu/machine/ssh.scm
+++ b/gnu/machine/ssh.scm
@@ -36,6 +36,7 @@
#:use-module (ice-9 match)
#:use-module (srfi srfi-19)
#:use-module (srfi srfi-26)
+ #:use-module (srfi srfi-34)
#:use-module (srfi srfi-35)
#:export (managed-host-environment-type
@@ -68,6 +69,7 @@
machine-ssh-configuration?
this-machine-ssh-configuration
(host-name machine-ssh-configuration-host-name) ; string
+ (system machine-ssh-configuration-system) ; string
(build-locally? machine-ssh-configuration-build-locally?
(default #t))
(port machine-ssh-configuration-port ; integer
@@ -103,10 +105,12 @@ one from the configuration's parameters if one was not provided."
"Internal implementation of 'machine-remote-eval' for MACHINE instances with
an environment type of 'managed-host."
(maybe-raise-unsupported-configuration-error machine)
- (remote-eval exp (machine-ssh-session machine)
- #:build-locally?
- (machine-ssh-configuration-build-locally?
- (machine-configuration machine))))
+ (let ((config (machine-configuration machine)))
+ (remote-eval exp (machine-ssh-session machine)
+ #:build-locally?
+ (machine-ssh-configuration-build-locally? config)
+ #:system
+ (machine-ssh-configuration-system config))))
;;;
@@ -240,10 +244,29 @@ MACHINE's 'system' declaration do not exist on the machine."
device)
(return #t)))
+(define (machine-check-building-for-appropriate-system machine)
+ "Raise a '&message' error condition if MACHINE is configured to be built
+locally and the 'system' field does not match the '%current-system' reported
+by MACHINE."
+ (let ((config (machine-configuration machine))
+ (system (remote-system (machine-ssh-session machine))))
+ (when (and (machine-ssh-configuration-build-locally? config)
+ (not (string= system (machine-ssh-configuration-system config))))
+ (raise (condition
+ (&message
+ (message (format #f (G_ "incorrect target system \
+('~a' was given, while the system reports that it is '~a')~%")
+ (machine-ssh-configuration-system config)
+ system)))))))
+ (with-monad %store-monad (return #t)))
+
(define (check-deployment-sanity machine)
"Raise a '&message' error condition if it is clear that deploying MACHINE's
'system' declaration would fail."
+ ;; Order is important here -- an incorrect value for 'system' will cause
+ ;; invocations of 'remote-eval' to fail.
(mbegin %store-monad
+ (machine-check-building-for-appropriate-system machine)
(machine-check-file-system-availability machine)
(machine-check-initrd-modules machine)))