Add controller proxy certs.

nix/kubernetes/keys/package/k8s-controller-proxy/package.nix

@@ -0,0 +1,48 @@
+# unpackPhase
+# patchPhase
+# configurePhase
+# buildPhase
+# checkPhase
+# installPhase
+# fixupPhase
+# installCheckPhase
+# distPhase
+{
+  lib,
+  stdenv,
+  sqlite,
+  cfssl,
+  k8s,
+  all_hostnames,
+  controllers,
+  ...
+}:
+let
+  get_hostnames = (
+    hostname: (builtins.concatStringsSep "," ([ hostname ] ++ controllers."${hostname}".internal_ips))
+  );
+  install_body = (
+    lib.concatMapStringsSep "\n" (hostname: ''
+      cfssl gencert \
+            -ca=${k8s.requestheader-client-ca}/requestheader-client-ca.pem \
+            -ca-key=${k8s.requestheader-client-ca}/requestheader-client-ca-key.pem \
+            -config=${./files/ca-config.json} \
+            -hostname=${get_hostnames hostname} \
+            -profile=kubernetes \
+            ${./files}/${hostname}-proxy-csr.json | cfssljson -bare ${hostname}-proxy
+    '') (builtins.attrNames controllers)
+  );
+in
+stdenv.mkDerivation (finalAttrs: {
+  name = "k8s-controller-proxy";
+  nativeBuildInputs = [ cfssl ];
+  buildInputs = [ ];
+
+  unpackPhase = "true";
+
+  installPhase = ''
+    mkdir -p "$out"
+    cd "$out"
+  ''
+  + install_body;
+})