diff options
Diffstat (limited to 'guix/docker.scm')
| -rw-r--r-- | guix/docker.scm | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/guix/docker.scm b/guix/docker.scm index 290ad3dcf1..060232148e 100644 --- a/guix/docker.scm +++ b/guix/docker.scm @@ -105,12 +105,14 @@ return \"a\"." (define* (build-docker-image image path #:key closure compressor (symlinks '()) + (system (utsname:machine (uname))) (creation-time (current-time time-utc))) "Write to IMAGE a Docker image archive from the given store PATH. The image contains the closure of PATH, as specified in CLOSURE (a file produced by #:references-graphs). SYMLINKS must be a list of (SOURCE -> TARGET) tuples describing symlinks to be created in the image, where each TARGET is relative -to PATH. +to PATH. SYSTEM is a GNU triplet (or prefix thereof) of the system the +binaries at PATH are for; it is used to produce metadata in the image. Use COMPRESSOR, a command such as '(\"gzip\" \"-9n\"), to compress IMAGE. Use CREATION-TIME, a SRFI-19 time-utc object, as the creation time in metadata." @@ -118,11 +120,18 @@ CREATION-TIME, a SRFI-19 time-utc object, as the creation time in metadata." (closure (canonicalize-path closure)) (id (docker-id path)) (time (date->string (time-utc->date creation-time) "~4")) - (arch (match (utsname:machine (uname)) - ("x86_64" "amd64") - ("i686" "386") - ("armv7l" "arm") - ("mips64" "mips64le")))) + (arch (let-syntax ((cond* (syntax-rules () + ((_ (pattern clause) ...) + (cond ((string-prefix? pattern system) + clause) + ... + (else + (error "unsupported system" + system))))))) + (cond* ("x86_64" "amd64") + ("i686" "386") + ("arm" "arm") + ("mips64" "mips64le"))))) ;; Make sure we start with a fresh, empty working directory. (mkdir directory) |