[OOM-K8S-CERT-EXTERNAL-PROVIDER] Create mock implementation

This project is a GOlang implementation of an external provider for kubernetes cert-manager.
External provider will use OOM CertService as backend signing CA.
Mock implementation only logs intent of certificate signing.
In order to provide the ultimate implemenatation please extend file 'certservice-provisioner.go'.

Issue-ID: OOM-2559
Signed-off-by: Jan Malkiewicz <jan.malkiewicz@nokia.com>
Change-Id: Ib3de4ca4c54424042ddaa50507375815cc3da7f4

1 files changed, 115 insertions, 0 deletions

diff --git a/certServiceK8sExternalProvider/src/certservice-controller/certservice_issuer_status_reconciler.go b/certServiceK8sExternalProvider/src/certservice-controller/certservice_issuer_status_reconciler.go
new file mode 100644
index 00000000..c01ae85c
--- /dev/null
+++ b/certServiceK8sExternalProvider/src/certservice-controller/certservice_issuer_status_reconciler.go
@@ -0,0 +1,115 @@
+/*
+ * ============LICENSE_START=======================================================
+ * oom-certservice-k8s-external-provider
+ * ================================================================================
+ * Copyright (c) 2019 Smallstep Labs, Inc.
+ * Modifications copyright (C) 2020 Nokia. All rights reserved.
+ * ================================================================================
+ * This source code was copied from the following git repository:
+ * https://github.com/smallstep/step-issuer
+ * The source code was modified for usage in the ONAP project.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+
+package certservice_controller
+
+import (
+	"context"
+	"fmt"
+	"github.com/go-logr/logr"
+	core "k8s.io/api/core/v1"
+	meta "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"onap.org/oom-certservice/k8s-external-provider/src/api"
+)
+
+type certServiceIssuerStatusReconciler struct {
+	*CertServiceIssuerReconciler
+	issuer *api.CertServiceIssuer
+	logger logr.Logger
+}
+
+func newStatusReconciler(r *CertServiceIssuerReconciler, iss *api.CertServiceIssuer, log logr.Logger) *certServiceIssuerStatusReconciler {
+	return &certServiceIssuerStatusReconciler{
+		CertServiceIssuerReconciler: r,
+		issuer:                      iss,
+		logger:                      log,
+	}
+}
+
+func (r *certServiceIssuerStatusReconciler) Update(ctx context.Context, status api.ConditionStatus, reason, message string, args ...interface{}) error {
+	completeMessage := fmt.Sprintf(message, args...)
+	r.setCondition(status, reason, completeMessage)
+
+	// Fire an Event to additionally inform users of the change
+	eventType := core.EventTypeNormal
+	if status == api.ConditionFalse {
+		eventType = core.EventTypeWarning
+	}
+	r.Recorder.Event(r.issuer, eventType, reason, completeMessage)
+
+	return r.Client.Status().Update(ctx, r.issuer)
+}
+
+func (r *certServiceIssuerStatusReconciler) UpdateNoError(ctx context.Context, status api.ConditionStatus, reason, message string, args ...interface{}) {
+	if err := r.Update(ctx, status, reason, message, args...); err != nil {
+		r.logger.Error(err, "failed to update", "status", status, "reason", reason)
+	}
+}
+
+// setCondition will set a 'condition' on the given api.CertServiceIssuer resource.
+//
+// - If no condition of the same type already exists, the condition will be
+//   inserted with the LastTransitionTime set to the current time.
+// - If a condition of the same type and state already exists, the condition
+//   will be updated but the LastTransitionTime will not be modified.
+// - If a condition of the same type and different state already exists, the
+//   condition will be updated and the LastTransitionTime set to the current
+//   time.
+func (r *certServiceIssuerStatusReconciler) setCondition(status api.ConditionStatus, reason, message string) {
+	now := meta.NewTime(r.Clock.Now())
+	c := api.CertServiceIssuerCondition{
+		Type:               api.ConditionReady,
+		Status:             status,
+		Reason:             reason,
+		Message:            message,
+		LastTransitionTime: &now,
+	}
+
+	// Search through existing conditions
+	for idx, cond := range r.issuer.Status.Conditions {
+		// Skip unrelated conditions
+		if cond.Type != api.ConditionReady {
+			continue
+		}
+
+		// If this update doesn't contain a state transition, we don't update
+		// the conditions LastTransitionTime to Now()
+		if cond.Status == status {
+			c.LastTransitionTime = cond.LastTransitionTime
+		} else {
+			r.logger.Info("found status change for CertServiceIssuer condition; setting lastTransitionTime", "condition", cond.Type, "old_status", cond.Status, "new_status", status, "time", now.Time)
+		}
+
+		// Overwrite the existing condition
+		r.issuer.Status.Conditions[idx] = c
+		return
+	}
+
+	// If we've not found an existing condition of this type, we simply insert
+	// the new condition into the slice.
+	r.issuer.Status.Conditions = append(r.issuer.Status.Conditions, c)
+	r.logger.Info("setting lastTransitionTime for CertServiceIssuer condition", "condition", api.ConditionReady, "time", now.Time)
+}