infrastructure/lib/netconf-junos/system.nix

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{ config, lib, ... }:
let
inherit (lib)
concatStrings
concatStringsSep
filter
hasPrefix
length
mkOption
splitString
;
inherit (lib.types)
enum
listOf
port
str
;
in
{
options = {
system = {
host-name = mkOption {
type = str;
description = "The hostname of the switch.";
};
root-authentication = {
hashedPasswd = mkOption {
type = str;
description = "Hashed password for root.";
};
ssh-keys = mkOption {
type = listOf str;
description = "ssh keys for root user.";
default = [ ];
};
};
services = {
ssh.root-login = mkOption {
type = enum [
"allow"
"deny"
"deny-password"
];
description = "Login policy to use for root.";
};
netconf.port = mkOption {
type = port;
description = "Port to use for netconf.";
default = 830;
};
};
};
netconf.xmls.system = mkOption {
type = str;
visible = false;
readOnly = true;
};
};
config.netconf.xmls.system =
let
ssh-keys1 = map (splitString " ") config.system.root-authentication.ssh-keys;
ssh-keys2 = map (key: if length key < 3 then key ++ [ "foo@bar" ] else key) ssh-keys1;
ssh-keys = map (concatStringsSep " ") ssh-keys2;
edsca = map (key: "<ssh-edsca><name>${key}</name></ssh-edsca>") (
filter (hasPrefix "ssh-edsca ") ssh-keys
);
rsa = map (key: "<ssh-rsa><name>${key}</name></ssh-rsa>") (filter (hasPrefix "ssh-rsa ") ssh-keys);
ed25519 = map (key: "<ssh-ed25519><name>${key}</name></ssh-ed25519>") (
filter (hasPrefix "ssh-ed25519 ") ssh-keys
);
in
''
<system>
<host-name operation="replace">${config.system.host-name}</host-name>
<root-authentication operation="replace">
<encrypted-password>${config.system.root-authentication.hashedPasswd}</encrypted-password>
${concatStrings (edsca ++ rsa ++ ed25519)}
</root-authentication>
<services operation="replace">
<ssh><root-login>${config.system.services.ssh.root-login}</root-login></ssh>
<netconf>
<ssh><port>${toString config.system.services.netconf.port}</port></ssh>
<rfc-compliant/><yang-compliant/>
</netconf>
</services>
</system>
'';
}