51 lines
1.1 KiB
Nix
51 lines
1.1 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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{
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options = {
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nix.sshServe = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = "Whether to enable serving the Nix store as a binary cache via SSH.";
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};
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keys = mkOption {
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type = types.listOf types.str;
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default = [];
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example = [ "ssh-dss AAAAB3NzaC1k... alice@example.org" ];
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description = "A list of SSH public keys allowed to access the binary cache via SSH.";
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};
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};
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};
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config = mkIf config.nix.sshServe.enable {
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users.extraUsers.nix-ssh = {
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description = "Nix SSH substituter user";
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uid = config.ids.uids.nix-ssh;
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useDefaultShell = true;
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};
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services.openssh.enable = true;
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services.openssh.extraConfig = ''
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Match User nix-ssh
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AllowAgentForwarding no
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AllowTcpForwarding no
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PermitTTY no
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PermitTunnel no
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X11Forwarding no
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ForceCommand ${config.nix.package.out}/bin/nix-store --serve
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Match All
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'';
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users.extraUsers.nix-ssh.openssh.authorizedKeys.keys = config.nix.sshServe.keys;
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};
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}
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