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-rw-r--r--krebs/3modules/hosts.nix61
1 files changed, 60 insertions, 1 deletions
diff --git a/krebs/3modules/hosts.nix b/krebs/3modules/hosts.nix
index 0985bb539..7fe01a769 100644
--- a/krebs/3modules/hosts.nix
+++ b/krebs/3modules/hosts.nix
@@ -1,6 +1,5 @@
with import <stockholm/lib>;
{ config, ... }: let
- # TODO dedup functions with ./retiolum-hosts.nix
check = hostname: any (domain: hasSuffix ".${domain}" hostname) domains;
domains = attrNames (filterAttrs (_: eq "hosts") config.krebs.dns.providers);
in {
@@ -30,6 +29,66 @@ in {
map (addr: { ${addr} = aliases; }) net.addrs)
(attrValues host.nets))
(attrValues config.krebs.hosts)));
+
+ nixpkgs.config.packageOverrides = super: let
+ # nameValuePair name value : { "name" : name, "value" : value }
+
+ # addr : str
+ # aliase : str
+ # hostname : str
+ # netname : str
+
+ # addrAliases : nameValuePair addr [alias]
+
+ # hostNetAliases : host -> { ${netname} : [addrAliases] }
+ hostNetAliases = host:
+ mapAttrs (_: net: filter (x: x.name != null && x.value != []) [
+ { name = net.ip4.addr or null; value = net.aliases; }
+ { name = net.ip6.addr or null; value = net.aliases; }
+ ]) host.nets;
+
+ # netAliases : { ${netname} : [addrAliases] }
+ netAliases =
+ foldl'
+ (result: host:
+ foldl'
+ # λ netAliases -> [addrAliases] -> netAliases
+ (result: { name, value }: result // {
+ ${name} = result.${name} or [] ++ value;
+ })
+ result
+ (mapAttrsToList nameValuePair (hostNetAliases host))
+ )
+ {}
+ (attrValues config.krebs.hosts);
+
+ # writeHosts : str -> [addrAliases] -> package
+ writeHosts = name: addrAliases: super.writeText name ''
+ ${concatMapStringsSep
+ "\n"
+ ({ name, value }: "${name} ${toString value}")
+ addrAliases}
+ '';
+ in
+ {
+ # hosts file for all krebs networks
+ krebs-hosts =
+ writeHosts "krebs-hosts" (concatLists [
+ netAliases.internet
+ netAliases.retiolum
+ netAliases.wiregrill
+ ]);
+
+ # combined hosts file for all networks (even custom ones)
+ krebs-hosts_combined =
+ writeHosts "krebs-hosts_combined"
+ (concatLists (attrValues netAliases));
+ }
+ //
+ genAttrs' (attrNames netAliases) (netname: rec {
+ name = "krebs-hosts-${netname}";
+ value = writeHosts name netAliases.${netname};
+ });
};
}