Introduce the Event v1beta1 API schema

Signed-off-by: Stefan Prodan <[email protected]>

apis/event/go.mod

@@ -0,0 +1,25 @@
+module github.com/fluxcd/pkg/apis/event
+
+go 1.18
+
+require (
+	k8s.io/api v0.25.3
+	k8s.io/apimachinery v0.25.3
+)
+
+require (
+	github.com/go-logr/logr v1.2.3 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/google/gofuzz v1.2.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	golang.org/x/net v0.0.0-20220722155237-a158d28d115b // indirect
+	golang.org/x/text v0.3.7 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	k8s.io/klog/v2 v2.70.1 // indirect
+	k8s.io/utils v0.0.0-20220728103510-ee6ede2d64ed // indirect
+	sigs.k8s.io/json v0.0.0-20220713155537-f223a00ba0e2 // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.2.3 // indirect
+)

apis/event/go.sum

@@ -0,0 +1,84 @@
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apis/event/v1beta1/doc.go

@@ -0,0 +1,19 @@
+/*
+Copyright 2022 The Flux authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Package v1beta1 contains the API Schema definitions for the Flux eventing API.
+// +kubebuilder:object:generate=true
+package v1beta1

apis/event/v1beta1/event.go

@@ -0,0 +1,90 @@
+/*
+Copyright 2022 The Flux authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package v1beta1
+
+import (
+	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// These constants define valid event severity values.
+const (
+	// EventSeverityTrace represents a trace event, usually
+	// informing about actions taken during reconciliation.
+	EventSeverityTrace string = "trace"
+	// EventSeverityInfo represents an informational event, usually
+	// informing about changes.
+	EventSeverityInfo string = "info"
+	// EventSeverityError represent an error event, usually a warning
+	// that something goes wrong.
+	EventSeverityError string = "error"
+)
+
+// EventTypeTrace represents a trace event.
+const EventTypeTrace string = "Trace"
+
+// Event is a report of an event issued by a controller.
+type Event struct {
+	// The object that this event is about.
+	// +required
+	InvolvedObject corev1.ObjectReference `json:"involvedObject"`
+
+	// Severity type of this event (trace, info, error)
+	// +kubebuilder:validation:Enum=trace;info;error
+	// +required
+	Severity string `json:"severity"`
+
+	// The time at which this event was recorded.
+	// +required
+	Timestamp metav1.Time `json:"timestamp"`
+
+	// A human-readable description of this event.
+	// Maximum length 39,000 characters.
+	// +kubebuilder:validation:MaxLength=39000
+	// +required
+	Message string `json:"message"`
+
+	// A machine understandable string that gives the reason
+	// for the transition into the object's current status.
+	// +required
+	Reason string `json:"reason"`
+
+	// Metadata of this event, e.g. apply change set.
+	// +optional
+	Metadata map[string]string `json:"metadata,omitempty"`
+
+	// Name of the controller that emitted this event, e.g. `source-controller`.
+	// +required
+	ReportingController string `json:"reportingController"`
+
+	// ID of the controller instance, e.g. `source-controller-xyzf`.
+	// +optional
+	ReportingInstance string `json:"reportingInstance,omitempty"`
+}
+
+// HasReason returns true if the Reason equals the given value.
+func (in *Event) HasReason(reason string) bool {
+	return in.Reason == reason
+}
+
+// HasMetadata returns true if the given key/value pair is found in Metadata.
+func (in *Event) HasMetadata(key string, val string) bool {
+	if v, ok := in.Metadata[key]; ok && v == val {
+		return true
+	}
+	return false
+}