From 97b5964e5ab9aad49f08799aaaf1a82706d1a302 Mon Sep 17 00:00:00 2001
From: Krzysztof Pudlowski <djkormo@gmail.com>
Date: Tue, 5 Jul 2022 23:27:06 +0200
Subject: [PATCH] adding configmap creation

---
 README.md                              |  2 +-
 charts/go-project-operator/Chart.yaml  |  4 +--
 charts/go-project-operator/values.yaml |  2 +-
 controllers/config.go                  |  4 ++-
 controllers/project_controller.go      | 40 ++++++++++++++++++++++++++
 5 files changed, 47 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index a14b57a..e31fecb 100644
--- a/README.md
+++ b/README.md
@@ -426,7 +426,7 @@ make run
 bash prepare-setup.sh
 make docker-build docker-push IMG=$IMG
 
-make docker-build docker-push IMG="docker.io/djkormo/go-project-operator:v0.0.6"
+make docker-build docker-push IMG="docker.io/djkormo/go-project-operator:v0.0.8"
 
 ```
 
diff --git a/charts/go-project-operator/Chart.yaml b/charts/go-project-operator/Chart.yaml
index 24678d4..8792d10 100644
--- a/charts/go-project-operator/Chart.yaml
+++ b/charts/go-project-operator/Chart.yaml
@@ -13,9 +13,9 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.0.7
+version: 0.0.8
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
 # follow Semantic Versioning. They should reflect the version the application is using.
 # It is recommended to use it with quotes.
-appVersion: "0.0.7"
+appVersion: "0.0.8"
diff --git a/charts/go-project-operator/values.yaml b/charts/go-project-operator/values.yaml
index f8f48a7..7df08bc 100644
--- a/charts/go-project-operator/values.yaml
+++ b/charts/go-project-operator/values.yaml
@@ -13,7 +13,7 @@ controllerManager:
   manager:
     image:
       repository: docker.io/djkormo/go-project-operator
-      tag: v0.0.7
+      tag: v0.0.8
     resources:
       limits:
         cpu: 500m
diff --git a/controllers/config.go b/controllers/config.go
index d5c67e9..675c4d8 100644
--- a/controllers/config.go
+++ b/controllers/config.go
@@ -1,6 +1,8 @@
 package controllers
 
-// for pausing operator loop
 const (
+	// for pausing operator loop
 	pauseReconciliationLabel = "project-operator/pauseReconciliation"
+	// for creating configmap
+	configMapName = "project-operator-configmap-override"
 )
diff --git a/controllers/project_controller.go b/controllers/project_controller.go
index 2b4b926..0ceed4f 100644
--- a/controllers/project_controller.go
+++ b/controllers/project_controller.go
@@ -89,10 +89,33 @@ func (r *ProjectReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ct
 		return ctrl.Result{}, nil
 	}
 
+	// creating missing override configmap
+
+	configMapFound := &corev1.ConfigMap{}
+	err = r.Get(ctx, types.NamespacedName{Name: configMapName, Namespace: Project.Name}, configMapFound)
+
 	// Find if namespace exists
 	namespaceFound := &corev1.Namespace{}
 	err = r.Get(ctx, types.NamespacedName{Name: Project.Name}, namespaceFound)
 
+	if err != nil && errors.IsNotFound(err) {
+		// define a new configmap
+		cm := r.populateConfigOverrideConfigMap(Project) // returns a configmap
+		logger.Info("Creating a new Configmap", "ConfigMap.Name", configMapName)
+		err = r.Create(ctx, cm)
+		if err != nil {
+			logger.Error(err, "Failed to create new ConfigMap", "Configmap.Name", configMapName)
+			return ctrl.Result{}, err
+		}
+		// configmap created, return and requeue
+		logger.Info("ConfigMap created", "ConfiMap.Name", configMapName)
+		return ctrl.Result{Requeue: true}, nil
+	} else if err != nil {
+		logger.Error(err, "Failed to get ConfigMap")
+		// Reconcile failed due to error - requeue
+		return ctrl.Result{}, err
+	}
+
 	if err != nil && errors.IsNotFound(err) {
 		// define a new namespace
 		ns := r.namespaceForProjectApp(Project) // namespaceForProjectApp() returns a namespace
@@ -362,3 +385,20 @@ func ignoreDeletionPredicate() predicate.Predicate {
 		},
 	}
 }
+
+func (r *ProjectReconciler) populateConfigOverrideConfigMap(m *projectv1alpha1.Project) *corev1.ConfigMap {
+
+	placeholderConfig := map[string]string{
+		"pauseReconciliationLabel": pauseReconciliationLabel,
+	}
+	namespace := m.Namespace
+	configmap := &corev1.ConfigMap{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      configMapName,
+			Namespace: namespace,
+		},
+		Data: placeholderConfig,
+	}
+
+	return configmap
+}