From 8e859d61278beadb06758c31bd56a832e33e014e Mon Sep 17 00:00:00 2001
From: Alper Rifat Ulucinar <ulucinar@users.noreply.github.com>
Date: Tue, 22 Aug 2023 19:57:20 +0300
Subject: [PATCH] Queue a reconcile request after marking the resource as ready

Signed-off-by: Alper Rifat Ulucinar <ulucinar@users.noreply.github.com>
---
 pkg/controller/external.go      | 11 +++++++++++
 pkg/controller/external_test.go |  3 ++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/pkg/controller/external.go b/pkg/controller/external.go
index bd317340..f8b6ce60 100644
--- a/pkg/controller/external.go
+++ b/pkg/controller/external.go
@@ -43,6 +43,7 @@ const (
 
 const (
 	rateLimiterScheduler = "scheduler"
+	rateLimiterStatus    = "status"
 	retryLimit           = 20
 )
 
@@ -295,6 +296,7 @@ func (e *external) Observe(ctx context.Context, mg xpresource.Managed) (managed.
 	switch {
 	// we prioritize critical annotation updates over status updates
 	case annotationsUpdated:
+		e.logger.Debug("Critical annotations have been updated.")
 		return managed.ExternalObservation{
 			ResourceExists:          true,
 			ResourceUpToDate:        true,
@@ -305,6 +307,10 @@ func (e *external) Observe(ctx context.Context, mg xpresource.Managed) (managed.
 	case !markedAvailable:
 		addTTR(tr)
 		tr.SetConditions(xpv1.Available())
+		e.logger.Debug("Resource is marked as available.")
+		if e.eventHandler != nil {
+			e.eventHandler.RequestReconcile(rateLimiterStatus, mg.GetName(), nil)
+		}
 		return managed.ExternalObservation{
 			ResourceExists:    true,
 			ResourceUpToDate:  true,
@@ -313,6 +319,7 @@ func (e *external) Observe(ctx context.Context, mg xpresource.Managed) (managed.
 	// with the least priority wrt critical annotation updates and status updates
 	// we allow a late-initialization before the Workspace.Plan call
 	case lateInitedParams:
+		e.logger.Debug("Resource is late-initialized.")
 		return managed.ExternalObservation{
 			ResourceExists:          true,
 			ResourceUpToDate:        true,
@@ -321,12 +328,16 @@ func (e *external) Observe(ctx context.Context, mg xpresource.Managed) (managed.
 		}, nil
 	// now we do a Workspace.Refresh
 	default:
+		if e.eventHandler != nil {
+			e.eventHandler.Forget(rateLimiterStatus, mg.GetName())
+		}
 		plan, err := e.workspace.Plan(ctx)
 		if err != nil {
 			return managed.ExternalObservation{}, errors.Wrap(err, errPlan)
 		}
 
 		resource.SetUpToDateCondition(mg, plan.UpToDate)
+		e.logger.Debug("Called plan on the resource.", "upToDate", plan.UpToDate)
 
 		return managed.ExternalObservation{
 			ResourceExists:    true,
diff --git a/pkg/controller/external_test.go b/pkg/controller/external_test.go
index 9ca9bb38..cb76b511 100644
--- a/pkg/controller/external_test.go
+++ b/pkg/controller/external_test.go
@@ -19,6 +19,7 @@ import (
 	"testing"
 
 	xpv1 "github.com/crossplane/crossplane-runtime/apis/common/v1"
+	"github.com/crossplane/crossplane-runtime/pkg/logging"
 	xpmeta "github.com/crossplane/crossplane-runtime/pkg/meta"
 	"github.com/crossplane/crossplane-runtime/pkg/reconciler/managed"
 	xpresource "github.com/crossplane/crossplane-runtime/pkg/resource"
@@ -601,7 +602,7 @@ func TestObserve(t *testing.T) {
 	}
 	for name, tc := range cases {
 		t.Run(name, func(t *testing.T) {
-			e := &external{workspace: tc.w, config: config.DefaultResource("upjet_resource", nil, nil), kube: tc.args.client}
+			e := &external{workspace: tc.w, config: config.DefaultResource("upjet_resource", nil, nil), kube: tc.args.client, logger: logging.NewNopLogger()}
 			observation, err := e.Observe(context.TODO(), tc.args.obj)
 			if diff := cmp.Diff(tc.want.obs, observation); diff != "" {
 				t.Errorf("\n%s\nObserve(...): -want observation, +got observation:\n%s", tc.reason, diff)