Add options to support signed binary caches

Typical use:

    nix.requireSignedBinaryCaches = true;
    nix.binaryCachePublicKeys = [ "hydra.nixos.org-1:CNHJZBh9K4tP3EKF6FkkgeVYsS3ohTl+oS0Qa8bezVs=" ];

(The public key of cache.nixos.org is included by default.)

Note that this requires Nix 1.9 and that most of cache.nixos.org
hasn't been signed yet.
This commit is contained in:
Eelco Dolstra 2015-02-19 14:15:02 +01:00
parent ebfadc2fc9
commit 5762f8f95c

View file

@ -41,6 +41,10 @@ let
build-chroot-dirs = ${toString cfg.chrootDirs} /bin/sh=${sh} $(echo $extraPaths)
binary-caches = ${toString cfg.binaryCaches}
trusted-binary-caches = ${toString cfg.trustedBinaryCaches}
binary-cache-public-keys = ${toString cfg.binaryCachePublicKeys}
${optionalString cfg.requireSignedBinaryCaches ''
signed-binary-caches = *
''}
$extraOptions
END
'';
@ -244,6 +248,33 @@ in
'';
};
requireSignedBinaryCaches = mkOption {
type = types.bool;
default = false;
description = ''
If enabled, Nix will only download binaries from binary
caches if they are cryptographically signed with any of the
keys listed in
<option>nix.binaryCachePublicKeys</option>. If disabled (the
default), signatures are neither required nor checked, so
it's strongly recommended that you use only trustworthy
caches and https to prevent man-in-the-middle attacks.
'';
};
binaryCachePublicKeys = mkOption {
type = types.listOf types.str;
example = [ "hydra.nixos.org-1:CNHJZBh9K4tP3EKF6FkkgeVYsS3ohTl+oS0Qa8bezVs=" ];
description = ''
List of public keys used to sign binary caches. If
<option>nix.requireSignedBinaryCaches</option> is enabled,
then Nix will use a binary from a binary cache if and only
if it is signed by <emphasis>any</emphasis> of the keys
listed here. By default, only the key for
<uri>cache.nixos.org</uri> is included.
'';
};
};
};
@ -253,6 +284,8 @@ in
config = {
nix.binaryCachePublicKeys = [ "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=" ];
environment.etc."nix/nix.conf".source = nixConf;
# List of machines for distributed Nix builds in the format