stockholm/krebs/3modules/default.nix

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{ config, lib, ... }:
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with import <stockholm/lib>;
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let
cfg = config.krebs;
out = {
imports = [
./apt-cacher-ng.nix
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./backup.nix
./bepasty-server.nix
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./buildbot/master.nix
./buildbot/slave.nix
./build.nix
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./ci.nix
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./current.nix
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./exim.nix
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./exim-retiolum.nix
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./exim-smarthost.nix
./fetchWallpaper.nix
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./github-hosts-sync.nix
./git.nix
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./go.nix
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./hidden-ssh.nix
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./htgen.nix
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./iptables.nix
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./kapacitor.nix
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./monit.nix
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./newsbot-js.nix
./nixpkgs.nix
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./on-failure.nix
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./os-release.nix
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./per-user.nix
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./power-action.nix
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./Reaktor.nix
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./realwallpaper.nix
./retiolum-bootstrap.nix
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./rtorrent.nix
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./secret.nix
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./setuid.nix
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./tinc.nix
./tinc_graphs.nix
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./urlwatch.nix
./repo-sync.nix
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];
options.krebs = api;
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config = lib.mkIf cfg.enable imp;
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};
api = {
enable = mkEnableOption "krebs";
dns = {
providers = mkOption {
type = with types; attrsOf str;
};
};
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hosts = mkOption {
type = with types; attrsOf host;
};
users = mkOption {
type = with types; attrsOf user;
};
# XXX is there a better place to define search-domain?
# TODO search-domains :: listOf hostname
search-domain = mkOption {
type = types.hostname;
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default = "r";
};
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zone-head-config = mkOption {
type = with types; attrsOf str;
description = ''
The zone configuration head which is being used to create the
zone files. The string for each key is pre-pended to the zone file.
'';
# TODO: configure the default somewhere else,
# maybe use krebs.dns.providers
default = {
# github.io -> 192.30.252.154
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"krebsco.de" = ''
$TTL 86400
@ IN SOA dns19.ovh.net. tech.ovh.net. (2015052000 86400 3600 3600000 86400)
IN NS ns19.ovh.net.
IN NS dns19.ovh.net.
IN A 192.30.252.154
IN A 192.30.252.153
'';
};
};
};
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imp = lib.mkMerge [
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{ krebs = import ./lass { inherit config; }; }
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{ krebs = import ./krebs { inherit config; }; }
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{ krebs = import ./makefu { inherit config; }; }
{ krebs = import ./mv { inherit config; }; }
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{ krebs = import ./nin { inherit config; }; }
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{ krebs = import ./tv { inherit config; }; }
{
krebs.dns.providers = {
"krebsco.de" = "zones";
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gg23 = "hosts";
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shack = "hosts";
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i = "hosts";
r = "hosts";
};
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krebs.users = {
krebs = {
home = "/krebs";
mail = "spam@krebsco.de";
};
root = {
home = "/root";
pubkey = config.krebs.build.host.ssh.pubkey;
uid = 0;
};
};
networking.extraHosts = let
domains = attrNames (filterAttrs (_: eq "hosts") cfg.dns.providers);
check = hostname: any (domain: hasSuffix ".${domain}" hostname) domains;
in concatStringsSep "\n" (flatten (
mapAttrsToList (hostname: host:
mapAttrsToList (netname: net:
let
aliases = longs ++ shorts;
longs = filter check net.aliases;
shorts = let s = ".${cfg.search-domain}"; in
map (removeSuffix s) (filter (hasSuffix s) longs);
in
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optionals
(aliases != [])
(map (addr: "${addr} ${toString aliases}") net.addrs)
) (filterAttrs (name: host: host.aliases != []) host.nets)
) cfg.hosts
));
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# TODO dedup with networking.extraHosts
nixpkgs.config.packageOverrides = oldpkgs:
let
domains = attrNames (filterAttrs (_: eq "hosts") cfg.dns.providers);
check = hostname: any (domain: hasSuffix ".${domain}" hostname) domains;
in
{
retiolum-hosts = oldpkgs.writeText "retiolum-hosts" ''
${concatStringsSep "\n" (flatten (
map (host:
let
net = host.nets.retiolum;
aliases = longs;
longs = filter check net.aliases;
in
optionals
(aliases != [])
(map (addr: "${addr} ${toString aliases}") net.addrs)
) (filter (host: hasAttr "retiolum" host.nets)
(attrValues cfg.hosts))))}
'';
};
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# Implements environment.etc."zones/<zone-name>"
environment.etc = let
stripEmptyLines = s: (concatStringsSep "\n"
(remove "\n" (remove "" (splitString "\n" s)))) + "\n";
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all-zones = foldAttrs (sum: current: sum + "\n" +current ) ""
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([cfg.zone-head-config] ++ combined-hosts);
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combined-hosts = (mapAttrsToList (name: value: value.extraZones) cfg.hosts );
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in lib.mapAttrs' (name: value: nameValuePair
("zones/" + name)
{ text=(stripEmptyLines value); }) all-zones;
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krebs.exim-smarthost.internet-aliases = let
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format = from: to: {
inherit from;
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# TODO assert is-retiolum-mail-address to;
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to = concatMapStringsSep "," (getAttr "mail") (toList to);
};
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in mapAttrsToList format (with config.krebs.users; let
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eloop-ml = spam-ml ++ [ ciko ];
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spam-ml = [
lass
makefu
tv
];
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ciko.mail = "ciko@slash16.net";
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in {
"anmeldung@eloop.org" = eloop-ml;
"cfp@eloop.org" = eloop-ml;
"kontakt@eloop.org" = eloop-ml;
"root@eloop.org" = eloop-ml;
"eloop2016@krebsco.de" = eloop-ml;
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"postmaster@krebsco.de" = spam-ml; # RFC 822
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"lass@krebsco.de" = lass;
"makefu@krebsco.de" = makefu;
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"spam@krebsco.de" = spam-ml;
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"tv@krebsco.de" = tv;
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# XXX These are no internet aliases
# XXX exim-retiolum hosts should be able to relay to retiolum addresses
"lass@retiolum" = lass;
"makefu@retiolum" = makefu;
"spam@retiolum" = spam-ml;
"tv@retiolum" = tv;
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"lass@r" = lass;
"makefu@r" = makefu;
"spam@r" = spam-ml;
"tv@r" = tv;
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});
services.openssh.hostKeys =
let inherit (config.krebs.build.host.ssh) privkey; in
mkIf (privkey != null) (mkForce [privkey]);
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# TODO use imports for merging
services.openssh.knownHosts =
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(let inherit (config.krebs.build.host.ssh) pubkey; in
optionalAttrs (pubkey != null) {
localhost = {
hostNames = ["localhost" "127.0.0.1" "::1"];
publicKey = pubkey;
};
})
//
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# GitHub's IPv4 address range is 192.30.252.0/22
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# Refs https://help.github.com/articles/github-s-ip-addresses/
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# 192.30.252.0/22 = 192.30.252.0-192.30.255.255 (1024 addresses)
# Because line length is limited by OPENSSH_LINE_MAX (= 8192),
# we split each /24 into its own entry.
listToAttrs (map
(c: {
name = "github${toString c}";
value = {
hostNames = ["github.com"] ++
map (d: "192.30.${toString c}.${toString d}") (range 0 255);
publicKey = "ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAq2A7hRGmdnm9tUDbO9IDSwBK6TbQa+PXYPCPy6rbTrTtw7PHkccKrpp0yVhp5HdEIcKr6pLlVDBfOLX9QUsyCOV0wzfjIJNlGEYsdlLJizHhbn2mUjvSAHQqZETYP81eFzLQNnPHt4EVVUh7VfDESU84KezmD5QlWpXLmvU31/yMf+Se8xhHTvKSCZIFImWwoG6mbUoWf9nzpIoaSjB+weqqUUmpaaasXVal72J+UX2B+2RPW3RcT0eOzQgqlJL3RKrTJvdsjE3JEAvGq3lGHSZXy28G3skua2SmVi/w4yCE6gbODqnTWlg7+wC604ydGXA8VJiS5ap43JXiUFFAaQ==";
};
})
(range 252 255))
//
mapAttrs
(name: host: {
hostNames =
concatLists
(mapAttrsToList
(net-name: net:
let
longs = net.aliases;
shorts =
map (removeSuffix ".${cfg.search-domain}")
(filter (hasSuffix ".${cfg.search-domain}")
longs);
add-port = a:
if net.ssh.port != 22
then "[${a}]:${toString net.ssh.port}"
else a;
in
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map add-port (shorts ++ longs ++ net.addrs))
host.nets);
publicKey = host.ssh.pubkey;
})
(filterAttrs (_: host: host.ssh.pubkey != null) cfg.hosts);
programs.ssh.extraConfig = concatMapStrings
(net: ''
Host ${toString (net.aliases ++ net.addrs)}
Port ${toString net.ssh.port}
'')
(filter
(net: net.ssh.port != 22)
(concatMap (host: attrValues host.nets)
(mapAttrsToList
(_: host: recursiveUpdate host
(optionalAttrs (hasAttr config.krebs.search-domain host.nets) {
nets."" = host.nets.${config.krebs.search-domain} // {
aliases = [host.name];
addrs = [];
};
}))
config.krebs.hosts)));
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}
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];
in out