feat(grafanaplane): expose GroupVersionKind tuples

This exposes GroupVersionKind tuples for all CRDs and XRDs covered by
this library. The main goal is to configure kube-state-metrics Custom
Resource State metrics.

generator/configurations.libsonnet

@@ -6,16 +6,62 @@ local configuration(key, version) =
   conf.new(key)
   + conf.spec.withPackage('ghcr.io/grafana/crossplane/' + key + ':' + version);
 
-local groups =
+local gvkXRDs =
+  std.flatMap(
+    function(def) [
+      {
+        group: def.definition.spec.group,
+        version: v.name,
+        kind: def.definition.spec.claimNames.kind,
+      }
+      for v in def.definition.spec.versions
+    ],
+    namespaced
+  );
+
+local gvkCRDs =
+  std.map(
+    function(def) {
+      local s = std.splitLimitR(def.composition.spec.pipeline[0].input.resources[0].base.apiVersion, '/', 1),
+      group: s[0],
+      version: s[1],
+      kind: def.composition.spec.pipeline[0].input.resources[0].base.kind,
+    },
+    namespaced
+  );
+
+local groupSet(gvks) =
   std.set(
     std.map(
-      function(def)
-        std.splitLimit(def.definition.spec.group, '.', 1)[0],
-      namespaced
+      function(gvk)
+        gvk.group,
+      gvks,
     )
   );
 
-function(configurationVersion) {
-  [group]: configuration('grafana-namespaced-' + group, configurationVersion)
-  for group in groups
+local shortGroupName(group) =
+  std.splitLimit(group, '.', 1)[0];
+
+local groupFilter(group) =
+  function(gvk) gvk.group == group;
+
+local gvkByGroup(name, gvks) = {
+  [shortGroupName(group)]+: {
+    [name]+: [
+      gvk
+      for gvk in std.filter(groupFilter(group), gvks)
+    ],
+  }
+  for group in groupSet(gvks)
+};
+
+function(version='main') {
+  configurations: {
+    [shortGroupName(group)]: configuration('grafana-namespaced-' + shortGroupName(group), version)
+    for group in groupSet(gvkXRDs)
+  },
+
+  gvks:
+    gvkByGroup('xrd', gvkXRDs)
+    + gvkByGroup('crd', gvkCRDs),
 }

generator/main.libsonnet

@@ -61,6 +61,8 @@ function(version='main')
     for file in std.objectKeysValues(files)
   }
   + {
-    'zz/configurations.libsonnet': std.manifestJson(configurations(version)),
+    local conf = configurations(version),
+    'zz/configurations.libsonnet': std.manifestJson(conf.configurations),
     'zz/version.libsonnet': std.manifestJson(version),
+    'zz/gvks.libsonnet': std.manifestJson(conf.gvks),
   }