first commit

default.nix

@@ -0,0 +1,89 @@
+{
+  pkgs ? import <nixpkgs> {}
+}:
+
+with pkgs.lib;
+with import ./lib.nix { inherit pkgs; inherit (pkgs) lib; };
+
+let
+  evalKubernetesModules = configuration: evalModules {
+    modules = [./kubernetes.nix ./modules.nix configuration];
+    args = {
+      inherit pkgs;
+      name = "default";
+      k8s = { inherit loadJSON loadYAML toBase64; };
+    };
+  };
+
+  flattenResources = resources: flatten (
+    mapAttrsToList (name: resourceGroup:
+      mapAttrsToList (name: resource: resource) resourceGroup
+    ) resources
+  );
+
+  filterResources = resourceFilter: resources:
+    mapAttrs (groupName: resources:
+      (filterAttrs (name: resource:
+        resourceFilter groupName name resource
+      ) resources)
+    ) resources;
+
+  toKubernetesList = resources: {
+    kind = "List";
+    apiVersion = "v1";
+    items = resources;
+  };
+
+  removeNixOptions = resources:
+    map (filterAttrs (name: attr: name != "nix")) resources;
+
+  buildResources = {
+    configuration ? {},
+    resourceFilter ? groupName: name: resource: true,
+    withDependencies ? true
+  }: let
+    evaldConfiguration = evalKubernetesModules configuration;
+
+    allResources = moduleToAttrs (
+      evaldConfiguration.config.kubernetes.resources //
+      evaldConfiguration.config.kubernetes.customResources
+    );
+
+    filteredResources = filterResources resourceFilter allResources;
+
+    allDependencies = flatten (
+      mapAttrsToList (groupName: resources:
+        mapAttrsToList (name: resource: resource.nix.dependencies) resources
+      ) filteredResources
+    );
+
+    resourceDependencies =
+      filterResources (groupName: name: resource:
+        elem "${groupName}/${name}" allDependencies
+      ) allResources;
+
+    finalResources =
+      if withDependencies
+      then recursiveUpdate resourceDependencies filteredResources
+      else filteredResources;
+
+    resources = removeNixOptions (
+      # custom resource definitions have to be allways created first
+      (flattenResources (filterResources (groupName: name: resource:
+        groupName == "customResourceDefinitions"
+      ) finalResources)) ++
+
+      # everything but custom resource definitions
+      (flattenResources (filterResources (groupName: name: resource:
+        groupName != "customResourceDefinitions"
+      ) finalResources))
+    );
+
+    kubernetesList = toKubernetesList resources;
+  in pkgs.writeText "resources.json" (builtins.toJSON kubernetesList);
+
+in {
+  inherit buildResources;
+
+  test = buildResources { configuration = ./test/default.nix; };
+}