services: guix: Add 'authorized-keys' configuration knob.
* gnu/services/base.scm (hydra-key-authorization): Add 'key' parameter and honor it. (%default-authorized-guix-keys): New variable. (<guix-configuration>)[authorized-keys]: New field. (guix-shepherd-service): Adjust 'match' clause accordingly. (guix-activation): Adjust call to 'hydra-key-authorization'. * doc/guix.texi (Base Services): Document 'authorized-keys'.
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					 2 changed files with 24 additions and 9 deletions
				
			
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			@ -7680,9 +7680,16 @@ Name of the group for build user accounts.
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Number of build user accounts to create.
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@item @code{authorize-key?} (default: @code{#t})
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Whether to authorize the substitute key for @code{hydra.gnu.org}
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Whether to authorize the substitute keys listed in
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@code{authorized-keys}---by default that of @code{hydra.gnu.org}
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(@pxref{Substitutes}).
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@vindex %default-authorized-guix-keys
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@item @code{authorized-keys} (default: @var{%default-authorized-guix-keys})
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The list of authorized key files for archive imports, as a list of
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string-valued gexps (@pxref{Invoking guix archive}).  By default, it
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contains that of @code{hydra.gnu.org} (@pxref{Substitutes}).
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@item @code{use-substitutes?} (default: @code{#t})
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Whether to use substitutes.
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			@ -86,6 +86,7 @@
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            syslog-service-type
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            %default-syslog.conf
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            %default-authorized-guix-keys
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            guix-configuration
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            guix-configuration?
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            guix-service
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			@ -1003,15 +1004,14 @@ starting at FIRST-UID, and under GID."
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          1+
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          1))
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(define (hydra-key-authorization guix)
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  "Return a gexp with code to register the hydra.gnu.org public key with
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GUIX."
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(define (hydra-key-authorization key guix)
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  "Return a gexp with code to register KEY, a file containing a 'guix archive'
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public key, with GUIX."
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  #~(unless (file-exists? "/etc/guix/acl")
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      (let ((pid (primitive-fork)))
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        (case pid
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          ((0)
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           (let* ((key  (string-append #$guix
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                                       "/share/guix/hydra.gnu.org.pub"))
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           (let* ((key  #$key)
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                  (port (open-file key "r0b")))
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             (format #t "registering public key '~a'...~%" key)
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             (close-port (current-input-port))
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			@ -1025,6 +1025,10 @@ GUIX."
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               (format (current-error-port) "warning: \
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failed to register hydra.gnu.org public key: ~a~%" status))))))))
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(define %default-authorized-guix-keys
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  ;; List of authorized substitute keys.
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  (list #~(string-append #$guix "/share/guix/hydra.gnu.org.pub")))
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(define-record-type* <guix-configuration>
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  guix-configuration make-guix-configuration
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  guix-configuration?
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			@ -1036,6 +1040,8 @@ failed to register hydra.gnu.org public key: ~a~%" status))))))))
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                    (default 10))
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  (authorize-key?   guix-configuration-authorize-key? ;Boolean
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                    (default #t))
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  (authorized-keys  guix-configuration-authorized-keys ;list of gexps
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                    (default %default-authorized-guix-keys))
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  (use-substitutes? guix-configuration-use-substitutes? ;Boolean
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                    (default #t))
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  (substitute-urls  guix-configuration-substitute-urls ;list of strings
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			@ -1053,7 +1059,8 @@ failed to register hydra.gnu.org public key: ~a~%" status))))))))
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(define (guix-shepherd-service config)
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  "Return a <shepherd-service> for the Guix daemon service with CONFIG."
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  (match config
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    (($ <guix-configuration> guix build-group build-accounts authorize-key?
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    (($ <guix-configuration> guix build-group build-accounts
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                             authorize-key? keys
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                             use-substitutes? substitute-urls extra-options
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                             lsof lsh)
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     (list (shepherd-service
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			@ -1093,14 +1100,15 @@ failed to register hydra.gnu.org public key: ~a~%" status))))))))
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(define (guix-activation config)
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  "Return the activation gexp for CONFIG."
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  (match config
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    (($ <guix-configuration> guix build-group build-accounts authorize-key?)
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    (($ <guix-configuration> guix build-group build-accounts authorize-key? keys)
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     ;; Assume that the store has BUILD-GROUP as its group.  We could
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     ;; otherwise call 'chown' here, but the problem is that on a COW unionfs,
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     ;; chown leads to an entire copy of the tree, which is a bad idea.
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     ;; Optionally authorize hydra.gnu.org's key.
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     (if authorize-key?
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         (hydra-key-authorization guix)
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         #~(begin
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             #$@(map (cut hydra-key-authorization <> guix) keys))
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         #~#f))))
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(define guix-service-type
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