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nixos/dockerPreloader: guard the entire implemetation with mkIf on image list

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This commit is contained in:
Johan Thomsen 2019-02-11 23:35:25 +01:00
parent 07208e7a0b
commit 302c4df41d
1 changed files with 2 additions and 3 deletions
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5
nixos/modules/virtualisation/docker-preloader.nix
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@ -78,12 +78,11 @@ in
};
};
config = {
config = mkIf (cfg.dockerPreloader.images != []) {
assertions = [{
# If docker.storageDriver is null, Docker choose the storage
# driver. So, in this case, we cannot be sure overlay2 is used.
assertion = cfg.dockerPreloader.images == []
|| cfg.docker.storageDriver == "overlay2"
assertion = cfg.docker.storageDriver == "overlay2"
|| cfg.docker.storageDriver == "overlay"
|| cfg.docker.storageDriver == null;
message = "The Docker image Preloader only works with overlay2 storage driver!";