Adding an extend example (helm+oci)

poc-helm-oci/default.nix

@@ -0,0 +1,14 @@
+{
+  pkgs ? import <nixpkgs> {}
+, lib ? pkgs.lib
+, extend ? pkgs.extend
+}:
+let
+  extendedAttrs = extend (final: prev: {
+    localOutputs = {
+      manifests = final.callPackage ./packages/manifests {};
+      oci-image = final.callPackage ./packages/oci-image {};
+    };
+  });
+in
+  extendedAttrs.localOutputs

poc-helm-oci/packages/manifests/default.nix

@@ -0,0 +1,20 @@
+{
+  pkgs
+, lib
+, helmnix ? import ../../../helm-poc/nix/helm.nix {}
+}:
+helmnix.mkHelm rec {
+  name = "cert-manager";
+  version = "v1.14.4";
+  url = "https://charts.jetstack.io/charts/${name}-${version}.tgz";
+  hash = "sha256-V3X9vBiB1uUQ33bTh1OvVLhr0Uyqjtso/bt5UnBC3t4=";
+  values = ./../../values/cert-manager.yaml;
+}
+
+#pkgs.dockerTools.streamLayeredImage {
+#  name = "oci-image";
+#  includeStorePaths = false;
+#  fakeRootCommands = ''
+#    cp -Lr ${localOutputs.charts}/* .
+#    rm -fr nix
+#  '';

poc-helm-oci/packages/oci-image/default.nix

@@ -0,0 +1,18 @@
+{
+  pkgs,
+  lib,
+  localOutputs,
+}:
+pkgs.dockerTools.streamLayeredImage {
+  name = "oci-image";
+  includeStorePaths = false;
+  fakeRootCommands = ''
+    cp -Lr ${localOutputs.manifests}/* .
+    rm -fr nix
+  '';
+
+#  config.Entrypoint = ["${lib.getExe localOutputs.binaries.simple-package}"];
+#  contents = [
+#    pkgs.hello
+#  ];
+}

poc-helm-oci/values/cert-manager.yaml

@@ -0,0 +1 @@
+namespace: testaroo