fix(sm): allow string for probes in check composition (#71)

* fix(sm): allow string for probes in check composition

The SM Check expects probe IDs for the probes, in Terraform the
`grafana_synthetic_monitoring_probes` data source can be used to grab
those based on the probe name. Crossplane (Upjet) doesn't have a 'data
source' concept so that is not possible.

The grafana-data function[1] aims to provide the translation from name
to ID. To accommodate for that, the XRD will need to allow for probes to
be names, then the function can replace those with IDs in the composite.

[1] https://github.com/grafana/crossplane-function-grafana-data/

* fix: implement IntOrString according to CRD docs

* fix: must be anyOf

* fix: correctly patch item

* fix: s/number/integer

Author: Duologic

generator/namespaced.libsonnet

@@ -28,9 +28,58 @@ local renameGroup(obj) =
     },
   };
 
+local addProbeNamesToSMCheck(obj) =
+  if obj.definition.metadata.name == 'xchecks.sm.grafana.net.namespaced'
+  then obj + {
+    definition+: {
+      local versions = super.spec.versions,
+      spec+: {
+        versions:
+          local patch = {
+            properties+: {
+              probes+: {
+                items: {
+                  // ref: https://kubernetes.io/docs/tasks/extend-kubernetes/custom-resources/custom-resource-definitions/#intorstring
+                  'x-kubernetes-int-or-string': true,
+                  anyOf: [
+                    { type: 'integer' },
+                    { type: 'string' },
+                  ],
+                },
+              },
+            },
+          };
+          std.map(
+            function(version)
+              version + {
+                schema+: {
+                  openAPIV3Schema+: {
+                    properties+: {
+                      spec+: {
+                        properties+: {
+                          parameters+: {
+                            properties+: {
+                              forProvider+: patch,
+                              initProvider+: patch,
+                            },
+                          },
+                        },
+                      },
+                    },
+                  },
+                },
+              },
+            versions,
+          ),
+      },
+    },
+  }
+  else obj;
+
 std.foldr(
   std.map,
   [
+    addProbeNamesToSMCheck,
     renameGroup,
     cngen.fromCRD,
   ],

packages/grafana-namespaced-sm/CompositeResourceDefinition-Check.yaml

@@ -92,7 +92,10 @@ spec:
                             (Set of Number) List of probe location IDs where this target will be checked from.
                             List of probe location IDs where this target will be checked from.
                           items:
-                            type: number
+                            anyOf:
+                              - type: integer
+                              - type: string
+                            x-kubernetes-int-or-string: true
                           type: array
                           x-kubernetes-list-type: set
                         settings:
@@ -916,7 +919,10 @@ spec:
                             (Set of Number) List of probe location IDs where this target will be checked from.
                             List of probe location IDs where this target will be checked from.
                           items:
-                            type: number
+                            anyOf:
+                              - type: integer
+                              - type: string
+                            x-kubernetes-int-or-string: true
                           type: array
                           x-kubernetes-list-type: set
                         settings: