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nixfiles/pkgs/clerie-ssh-known-hosts/default.nix

26 lines
965 B
Nix

{
writeTextFile,
}:
let
stripR = str: if (builtins.substring ((builtins.stringLength str) - 1) (builtins.stringLength str) str) == "\n" then stripR (builtins.substring 0 ((builtins.stringLength str) - 1) str) else str;
hostsWithSshPubkey = builtins.filter (hostname: (builtins.substring 0 1 hostname) != "_" && builtins.pathExists (../../hosts + "/${hostname}/ssh.pub")) (builtins.attrNames (builtins.readDir ../../hosts));
sshkeyList = map (hostname: {
name = hostname;
sshPubkey = stripR (builtins.readFile (../../hosts + "/${hostname}/ssh.pub"));
}) hostsWithSshPubkey;
knownHosts = builtins.concatStringsSep "" (builtins.map ({name, sshPubkey}: ''
${name}.net.clerie.de ${sshPubkey}
'') sshkeyList);
in writeTextFile {
name = "clerie-ssh-known-hosts";
destination = "/known_hosts";
allowSubstitutes = true;
preferLocalBuild = false;
text = ''
${knownHosts}
${builtins.readFile ./additional-ssh-known-hosts}
'';
}