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-rw-r--r--3modules/krebs/default.nix61
-rw-r--r--4lib/krebs/default.nix21
-rw-r--r--4lib/krebs/dns.nix31
-rw-r--r--4lib/krebs/listset.nix11
-rw-r--r--4lib/krebs/tree.nix13
5 files changed, 88 insertions, 49 deletions
diff --git a/3modules/krebs/default.nix b/3modules/krebs/default.nix
index 33c108811..70d454971 100644
--- a/3modules/krebs/default.nix
+++ b/3modules/krebs/default.nix
@@ -34,6 +34,14 @@ let
default = {};
};
+ dns = {
+ providers = mkOption {
+ # TODO with types; tree dns.label dns.provider, so we can merge.
+ # Currently providers can only be merged if aliases occur just once.
+ type = with types; attrsOf unspecified;
+ };
+ };
+
hosts = mkOption {
type = with types; attrsOf host;
};
@@ -56,38 +64,26 @@ let
{ krebs = makefu-imp; }
{ krebs = tv-imp; }
{
- # XXX This overlaps with krebs.retiolum
- networking.extraHosts =
- let
- # TODO move domain name providers to a dedicated module
- # providers : tree label providername
- providers = {
- internet = "hosts";
- retiolum = "hosts";
- de.viljetic = "regfish";
- de.krebsco = "ovh";
- };
-
- # splitByProvider : [alias] -> listset providername alias
- splitByProvider = foldl (acc: alias: listset-insert (providerOf alias) alias acc) {};
+ krebs.dns.providers = {
+ de.krebsco = "ovh";
+ internet = "hosts";
+ retiolum = "hosts";
+ };
- # providerOf : alias -> providername
- providerOf = alias:
- tree-get (splitString "." alias) providers;
- in
- concatStringsSep "\n" (flatten (
- # TODO deepMap ["hosts" "nets"] (hostname: host: netname: net:
- mapAttrsToList (hostname: host:
- mapAttrsToList (netname: net:
- let
- aliases = toString (unique (longs ++ shorts));
- longs = (splitByProvider net.aliases).hosts;
- shorts = map (removeSuffix ".${cfg.search-domain}") longs;
- in
- map (addr: "${addr} ${aliases}") net.addrs
- ) host.nets
- ) config.krebs.hosts
- ));
+ # XXX This overlaps with krebs.retiolum
+ networking.extraHosts = concatStringsSep "\n" (flatten (
+ mapAttrsToList (hostname: host:
+ mapAttrsToList (netname: net:
+ let
+ aliases = toString (unique (longs ++ shorts));
+ providers = dns.split-by-provider net.aliases cfg.dns.providers;
+ longs = providers.hosts;
+ shorts = map (removeSuffix ".${cfg.search-domain}") longs;
+ in
+ map (addr: "${addr} ${aliases}") net.addrs
+ ) host.nets
+ ) cfg.hosts
+ ));
}
];
@@ -139,6 +135,9 @@ let
};
tv-imp = {
+ dns.providers = {
+ de.viljetic = "regfish";
+ };
hosts = addNames {
cd = {
cores = 2;
diff --git a/4lib/krebs/default.nix b/4lib/krebs/default.nix
index 0c42a5de3..b67585335 100644
--- a/4lib/krebs/default.nix
+++ b/4lib/krebs/default.nix
@@ -12,22 +12,7 @@ builtins // lib // rec {
types = import ./types.nix { inherit lib; };
-
- # listset k v = set k [v]
-
- # listset-insert : k -> v -> listset k v -> listset k v
- listset-insert = name: value: set:
- set // { ${name} = set.${name} or [] ++ [value]; };
-
- # tree k v = set k (either v (tree k v))
-
- # tree-get : [k] -> tree k v -> v
- tree-get = path: x:
- let
- y = x.${last path};
- in
- if typeOf y != "set"
- then y
- else tree-get (init path) y;
-
+ dns = import ./dns.nix { inherit lib; };
+ listset = import ./listset.nix { inherit lib; };
+ tree = import ./tree.nix { inherit lib; };
}
diff --git a/4lib/krebs/dns.nix b/4lib/krebs/dns.nix
new file mode 100644
index 000000000..b2cf3c24c
--- /dev/null
+++ b/4lib/krebs/dns.nix
@@ -0,0 +1,31 @@
+{ lib, ... }:
+
+let
+ listset = import ./listset.nix { inherit lib; };
+in
+
+with builtins;
+with lib;
+
+rec {
+ # label = string
+
+ # TODO does it make sense to have alias = list label?
+
+ # split-by-provider :
+ # [[label]] -> tree label provider -> listset provider alias
+ split-by-provider = as: providers:
+ foldl (m: a: listset.insert (provider-of a providers) a m) {} as;
+
+ # provider-of : alias -> tree label provider -> provider
+ # Note that we cannot use tree.get here, because path can be longer
+ # than the tree depth.
+ provider-of = a:
+ let
+ go = path: tree:
+ if typeOf tree == "string"
+ then tree
+ else go (tail path) tree.${head path};
+ in
+ go (reverseList (splitString "." a));
+}
diff --git a/4lib/krebs/listset.nix b/4lib/krebs/listset.nix
new file mode 100644
index 000000000..3aae22f20
--- /dev/null
+++ b/4lib/krebs/listset.nix
@@ -0,0 +1,11 @@
+{ lib, ... }:
+
+with lib;
+
+rec {
+ # listset k v = set k [v]
+
+ # insert : k -> v -> listset k v -> listset k v
+ insert = name: value: set:
+ set // { ${name} = set.${name} or [] ++ [value]; };
+}
diff --git a/4lib/krebs/tree.nix b/4lib/krebs/tree.nix
new file mode 100644
index 000000000..1cd83b3f6
--- /dev/null
+++ b/4lib/krebs/tree.nix
@@ -0,0 +1,13 @@
+{ lib, ... }:
+
+with lib;
+
+rec {
+ # tree k v = set k (either v (tree k v))
+
+ # get : [k] -> tree k v -> v
+ get = path: tree:
+ if length path > 0
+ then get (tail path) tree.${head path} # TODO check if elem exists
+ else tree;
+}