nixos-config/pkgs/firecracker-vm/default.nix

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2023-12-18 03:39:23 +00:00
{ callPackage
, firecracker
, writeShellApplication
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, writeText
}:
let
kernel = callPackage ./kernel.nix { };
rootfs = callPackage ./rootfs.nix { };
vmconfig = writeText "vmconfig.json" (builtins.toJSON {
boot-source = {
kernel_image_path = "${kernel}/vmlinux";
boot_args = "panic=1 console=ttyS0 ro";
};
drives = [
{
drive_id = "rootfs";
path_on_host = rootfs;
is_root_device = true;
is_read_only = true;
}
];
machine-config.vcpu_count = 2;
machine-config.mem_size_mib = 1024;
network-interfaces = [ ];
});
in
writeShellApplication {
name = "firecracker-vm";
text = "${firecracker}/bin/firecracker --no-api --config-file ${vmconfig}";
derivationArgs.passthru = { inherit kernel rootfs; };
}