diff options
| -rw-r--r-- | doc/guix.texi | 3 | ||||
| -rw-r--r-- | gnu/machine/ssh.scm | 31 | ||||
| -rw-r--r-- | guix/remote.scm | 14 | ||||
| -rw-r--r-- | guix/ssh.scm | 7 |
4 files changed, 46 insertions, 9 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index 734206a4b2..a7facf4701 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -25573,6 +25573,9 @@ with an @code{environment} of @code{managed-host-environment-type}. @table @asis @item @code{host-name} +@item @code{system} +The Nix system type describing the architecture of the machine being deployed +to. This should look something like ``x86_64-linux''. @item @code{port} (default: @code{22}) @item @code{user} (default: @code{"root"}) @item @code{identity} (default: @code{#f}) 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))) diff --git a/guix/remote.scm b/guix/remote.scm index 5fecd954e9..bcac64ea7a 100644 --- a/guix/remote.scm +++ b/guix/remote.scm @@ -24,6 +24,7 @@ #:use-module (guix monads) #:use-module (guix modules) #:use-module (guix derivations) + #:use-module (guix utils) #:use-module (ssh popen) #:use-module (srfi srfi-1) #:use-module (ice-9 match) @@ -71,7 +72,7 @@ prerequisites of EXP are already available on the host at SESSION." "Return a \"trampoline\" gexp that evaluates EXP and writes the evaluation result to the current output port using the (guix repl) protocol." (define program - (scheme-file "remote-exp.scm" exp)) + (program-file "remote-exp.scm" exp)) (with-imported-modules (source-module-closure '((guix repl))) #~(begin @@ -89,6 +90,7 @@ result to the current output port using the (guix repl) protocol." (define* (remote-eval exp session #:key (build-locally? #t) + (system (%current-system)) (module-path %load-path) (socket-name "/var/guix/daemon-socket/socket")) "Evaluate EXP, a gexp, on the host at SESSION, an SSH session. Ensure that @@ -96,10 +98,12 @@ all the elements EXP refers to are built and deployed to SESSION beforehand. When BUILD-LOCALLY? is true, said dependencies are built locally and sent to the remote store afterwards; otherwise, dependencies are built directly on the remote store." - (mlet %store-monad ((lowered (lower-gexp (trampoline exp) - #:module-path %load-path)) - (remote -> (connect-to-remote-daemon session - socket-name))) + (mlet* %store-monad ((lowered (lower-gexp (trampoline exp) + #:system system + #:guile-for-build #f + #:module-path %load-path)) + (remote -> (connect-to-remote-daemon session + socket-name))) (define inputs (cons (lowered-gexp-guile lowered) (lowered-gexp-inputs lowered))) diff --git a/guix/ssh.scm b/guix/ssh.scm index ede00133c8..9b5ca68894 100644 --- a/guix/ssh.scm +++ b/guix/ssh.scm @@ -39,6 +39,7 @@ remote-inferior remote-daemon-channel connect-to-remote-daemon + remote-system send-files retrieve-files retrieve-files* @@ -282,6 +283,12 @@ be read. When RECURSIVE? is true, the closure of FILES is exported." ,(object->string (object->string export)))))) +(define (remote-system session) + "Return the system type as expected by Nix, usually ARCHITECTURE-KERNEL, of +the machine on the other end of SESSION." + (inferior-remote-eval '(begin (use-modules (guix utils)) (%current-system)) + session)) + (define* (send-files local files remote #:key recursive? |