Add conditions and events

.gitignore

@@ -16,3 +16,6 @@ vendor/
 .kclvm
 .DS_store
 package/*.xpkg
+
+.idea
+.vscode

README.md

@@ -513,6 +513,8 @@ bar:
     # Omitted for brevity
 ```
 You can access the retrieved resources in your code like this:
+> Note that Crossplane performs an additional reconciliation pass for extra resources.
+> Consequently, during the initial execution, these resources may be uninitialized. It is essential to implement checks to handle this scenario.
 ```yaml
 apiVersion: krm.kcl.dev/v1alpha1
 kind: KCLInput
@@ -522,7 +524,8 @@ spec:
   source: |
     er = option("params")?.extraResources
 
-    name = er?.bar[0]?.Resource?.metadata?.name or ""
+    if er?.bar:
+      name = er?.bar[0]?.Resource?.metadata?.name or ""
     # Omit other logic
 ```
 
@@ -544,6 +547,89 @@ spec:
     items = [dxr] # Omit other resources
 ```
 
+### Settings conditions and events
+
+> This feature requires Crossplane v1.17 or newer.
+
+You can set conditions and events directly from KCL, either in the composite resource or both the composite and claim resources.
+To set one or more conditions, use the following approach:
+```yaml
+apiVersion: krm.kcl.dev/v1alpha1
+kind: KCLInput
+metadata:
+  annotations:
+    "krm.kcl.dev/default_ready": "True"
+  name: basic
+spec:
+  source: |
+    oxr = option("params").oxr
+
+    dxr = {
+      **oxr
+    }
+
+    conditions = {
+      apiVersion: "meta.krm.kcl.dev/v1alpha1"
+      kind: "Conditions"
+      conditions = [
+        {
+          target: "CompositeAndClaim"
+          force: False
+          condition = {
+            type: "DatabaseReady"
+            status: "False"
+            reason: "FailedToCreate"
+            message: "Encountered an error creating the database"
+          }
+        }
+      ]
+    }
+
+    items = [
+      conditions
+      dxr
+    ]
+```
+
+- **target**: Specifies whether the condition should be present in the composite resource or both the composite and claim resources. Possible values are `CompositeAndClaim` and `Composite`
+- **force**: Forces the overwrite of existing conditions. If a condition with the same `type` already exists, it will not be overwritten by default. Setting force to `True` will overwrite the first condition.
+
+You can also set events as follows:
+```yaml
+apiVersion: krm.kcl.dev/v1alpha1
+kind: KCLInput
+metadata:
+  annotations:
+    "krm.kcl.dev/default_ready": "True"
+  name: basic
+spec:
+  source: |
+    oxr = option("params").oxr
+
+    dxr = {
+      **oxr
+    }
+
+    events = {
+      apiVersion: "meta.krm.kcl.dev/v1alpha1"
+      kind: "Events"
+      events = [
+        {
+          target: "CompositeAndClaim"
+          event = {
+            type: "Warning"
+            reason: "ResourceLimitExceeded"
+            message: "The resource limit has been exceeded"
+          }
+        }
+      ]
+    }
+    items = [
+      events
+      dxr
+    ]
+```
+
 ## Library
 
 You can directly use [KCL standard libraries](https://kcl-lang.io/docs/reference/model/overview) such as `regex.match`, `math.log`.

examples/default/conditions/Makefile

@@ -0,0 +1,2 @@
+run:
+	crossplane render --verbose xr.yaml composition.yaml functions.yaml -r

examples/default/conditions/README.md

@@ -0,0 +1,62 @@
+# Example Manifests
+
+You can run your function locally and test it using `crossplane render`
+with these example manifests.
+
+```shell
+# Run the function locally
+$ go run . --insecure --debug
+```
+
+```shell
+# Then, in another terminal, call it with these example manifests
+$ crossplane render --verbose xr.yaml composition.yaml functions.yaml -r --extra-resources extra_resources.yaml
+---
+---
+apiVersion: example.crossplane.io/v1beta1
+kind: XR
+metadata:
+  name: example
+status:
+  conditions:
+  - lastTransitionTime: "2024-01-01T00:00:00Z"
+    message: 'Unready resources: another-awesome-dev-bucket, my-awesome-dev-bucket'
+    reason: Creating
+    status: "False"
+    type: Ready
+---
+apiVersion: example/v1alpha1
+kind: Foo
+metadata:
+  annotations:
+    crossplane.io/composition-resource-name: another-awesome-dev-bucket
+  generateName: example-
+  labels:
+    crossplane.io/composite: example
+  name: another-awesome-dev-bucket
+  ownerReferences:
+  - apiVersion: example.crossplane.io/v1beta1
+    blockOwnerDeletion: true
+    controller: true
+    kind: XR
+    name: example
+    uid: ""
+---
+apiVersion: example/v1alpha1
+kind: Foo
+metadata:
+  annotations:
+    crossplane.io/composition-resource-name: my-awesome-dev-bucket
+  generateName: example-
+  labels:
+    crossplane.io/composite: example
+  name: my-awesome-dev-bucket
+  ownerReferences:
+  - apiVersion: example.crossplane.io/v1beta1
+    blockOwnerDeletion: true
+    controller: true
+    kind: XR
+    name: example
+    uid: ""
+
+```

examples/default/conditions/composition.yaml

@@ -0,0 +1,49 @@
+apiVersion: apiextensions.crossplane.io/v1
+kind: Composition
+metadata:
+  name: function-template-go
+spec:
+  compositeTypeRef:
+    apiVersion: example.crossplane.io/v1beta1
+    kind: XR
+  mode: Pipeline
+  pipeline:
+  - step: normal
+    functionRef:
+      name: kcl-function
+    input:
+      apiVersion: krm.kcl.dev/v1alpha1
+      kind: KCLInput
+      metadata:
+        annotations:
+          "krm.kcl.dev/default_ready": "True"
+        name: basic
+      spec:
+        source: |
+          oxr = option("params").oxr
+
+          dxr = {
+            **oxr
+          }
+
+          conditions = {
+              apiVersion: "meta.krm.kcl.dev/v1alpha1"
+              kind: "Conditions"
+              conditions = [
+                {
+                  target: "CompositeAndClaim"
+                  force: False
+                  condition = {
+                    type: "DatabaseReady"
+                    status: "False"
+                    reason: "FailedToCreate"
+                    message: "Encountered an error creating the database"
+                  }
+                }
+              ]
+
+          }
+          items = [
+              conditions
+              dxr
+          ]

examples/default/conditions/functions.yaml

@@ -0,0 +1,9 @@
+apiVersion: pkg.crossplane.io/v1beta1
+kind: Function
+metadata:
+  name: kcl-function
+  annotations:
+    # This tells crossplane render to connect to the function locally.
+    render.crossplane.io/runtime: Development
+spec:
+  package: xpkg.upbound.io/crossplane-contrib/function-kcl:latest

examples/default/conditions/xr.yaml

@@ -0,0 +1,6 @@
+apiVersion: example.crossplane.io/v1beta1
+kind: XR
+metadata:
+  name: example
+spec:
+  count: 1

examples/default/events/Makefile

@@ -0,0 +1,2 @@
+run:
+	crossplane render --verbose xr.yaml composition.yaml functions.yaml -r

examples/default/events/README.md

@@ -0,0 +1,62 @@
+# Example Manifests
+
+You can run your function locally and test it using `crossplane render`
+with these example manifests.
+
+```shell
+# Run the function locally
+$ go run . --insecure --debug
+```
+
+```shell
+# Then, in another terminal, call it with these example manifests
+$ crossplane render --verbose xr.yaml composition.yaml functions.yaml -r --extra-resources extra_resources.yaml
+---
+---
+apiVersion: example.crossplane.io/v1beta1
+kind: XR
+metadata:
+  name: example
+status:
+  conditions:
+  - lastTransitionTime: "2024-01-01T00:00:00Z"
+    message: 'Unready resources: another-awesome-dev-bucket, my-awesome-dev-bucket'
+    reason: Creating
+    status: "False"
+    type: Ready
+---
+apiVersion: example/v1alpha1
+kind: Foo
+metadata:
+  annotations:
+    crossplane.io/composition-resource-name: another-awesome-dev-bucket
+  generateName: example-
+  labels:
+    crossplane.io/composite: example
+  name: another-awesome-dev-bucket
+  ownerReferences:
+  - apiVersion: example.crossplane.io/v1beta1
+    blockOwnerDeletion: true
+    controller: true
+    kind: XR
+    name: example
+    uid: ""
+---
+apiVersion: example/v1alpha1
+kind: Foo
+metadata:
+  annotations:
+    crossplane.io/composition-resource-name: my-awesome-dev-bucket
+  generateName: example-
+  labels:
+    crossplane.io/composite: example
+  name: my-awesome-dev-bucket
+  ownerReferences:
+  - apiVersion: example.crossplane.io/v1beta1
+    blockOwnerDeletion: true
+    controller: true
+    kind: XR
+    name: example
+    uid: ""
+
+```

examples/default/events/composition.yaml

@@ -0,0 +1,46 @@
+apiVersion: apiextensions.crossplane.io/v1
+kind: Composition
+metadata:
+  name: function-template-go
+spec:
+  compositeTypeRef:
+    apiVersion: example.crossplane.io/v1beta1
+    kind: XR
+  mode: Pipeline
+  pipeline:
+  - step: normal
+    functionRef:
+      name: kcl-function
+    input:
+      apiVersion: krm.kcl.dev/v1alpha1
+      kind: KCLInput
+      metadata:
+        annotations:
+          "krm.kcl.dev/default_ready": "True"
+        name: basic
+      spec:
+        source: |
+          oxr = option("params").oxr
+
+          dxr = {
+            **oxr
+          }
+
+          events = {
+              apiVersion: "meta.krm.kcl.dev/v1alpha1"
+              kind: "Events"
+              events = [
+                {
+                  target: "CompositeAndClaim"
+                  event = {
+                    type: "Warning"
+                    reason: "ResourceLimitExceeded"
+                    message: "The resource limit has been exceeded"
+                  }
+                }
+              ]
+          }
+          items = [
+              events
+              dxr
+          ]

examples/default/events/functions.yaml

@@ -0,0 +1,9 @@
+apiVersion: pkg.crossplane.io/v1beta1
+kind: Function
+metadata:
+  name: kcl-function
+  annotations:
+    # This tells crossplane render to connect to the function locally.
+    render.crossplane.io/runtime: Development
+spec:
+  package: xpkg.upbound.io/crossplane-contrib/function-kcl:latest

examples/default/events/xr.yaml

@@ -0,0 +1,6 @@
+apiVersion: example.crossplane.io/v1beta1
+kind: XR
+metadata:
+  name: example
+spec:
+  count: 1