Adding Code to Create ConfigMaps Automatically

**Why:**

* This will allow the operator to create configmaps for resources based
  on the outputs.

**This change addresses the need by:**

* closes #67

Signed-off-by: Christopher Hein <[email protected]>

Author: christopherhein

models/dynamodb.yaml

@@ -97,3 +97,13 @@ spec:
           TableARN is the full Amazon ARN for the table created
         structKey: TableARN
         templateKey: TableArn
+  additionalResources:
+    configMaps:
+    - name: s3BucketCM
+      data:
+      - key: tableName
+        value: "{{.Obj.Output.TableName}}"
+      - key: tableARN
+        value: "{{.Obj.Output.TableARN}}"
+      - key: region
+        value: "{{.Config.Region}}"

models/s3bucket.yaml

@@ -82,12 +82,17 @@ spec:
       externalName: "{{.Obj.Name}}.s3-{{.Config.Region}}.amazonaws.com"
       ports:
       - port: 443
-    configMap:
-      - name: s3BucketCM
-        data:
-          bucketName: "{{.Obj.Name}}"
-          bucketARN: "{{.Obj.Output.BucketARN}}"
-          serviceName: "{{.Obj}}"
-          region: "{{.Config.Region}}"
-          bucketURL: "{{.Obj.Name}}.s3-{{.Config.Region}}.amazonaws.com"
+    configMaps:
+    - name: s3BucketCM
+      data:
+      - key: bucketName
+        value: "{{.Obj.Name}}"
+      - key: bucketARN
+        value: "{{.Obj.Output.BucketARN}}"
+      - key: serviceName
+        value: "{{call .Helpers.KubernetesResourceName .Obj.Name}}"
+      - key: region
+        value: "{{.Config.Region}}"
+      - key: bucketURL
+        value: "{{.Obj.Name}}.s3-{{.Config.Region}}.amazonaws.com"
 

pkg/helpers/config_map.go

@@ -0,0 +1,34 @@
+package helpers
+
+import (
+	"github.com/christopherhein/aws-operator/pkg/config"
+	apiv1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// CreateConfigMap will create a Kubernetes Servic Using ExternalName types
+func CreateConfigMap(config *config.Config, resource interface{}, svcName string, svcNamespace string, configMapTemplate map[string]string) string {
+	logger := config.Logger
+	cmData := map[string]string{}
+	for key, value := range configMapTemplate {
+		tempValue, err := Templatize(value, Data{Obj: resource, Config: config, Helpers: New()})
+		if err != nil {
+			logger.WithError(err).Error("error parsing config map template")
+			return ""
+		}
+		cmData[key] = tempValue
+	}
+
+	configMap := &apiv1.ConfigMap{
+		ObjectMeta: metav1.ObjectMeta{
+			Name: KubernetesResourceName(svcName),
+		},
+		Data: cmData,
+	}
+
+	newConfigMap, err := config.Context.Clientset.CoreV1().ConfigMaps(svcNamespace).Create(configMap)
+	if err != nil {
+		logger.WithError(err).Error("error creating configmap")
+	}
+	return newConfigMap.Name
+}

pkg/helpers/service.go

@@ -6,13 +6,6 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 )
 
-// Data wrapps the object that is needed for the services
-type Data struct {
-	Helpers Helpers
-	Obj     interface{}
-	Config  *config.Config
-}
-
 // CreateExternalNameService will create a Kubernetes Servic Using ExternalName types
 func CreateExternalNameService(config *config.Config, resource interface{}, svcName string, svcNamespace string, externalNameTemplate string, svcPort int32) string {
 	logger := config.Logger

pkg/helpers/types.go

@@ -0,0 +1,10 @@
+package helpers
+
+import "github.com/christopherhein/aws-operator/pkg/config"
+
+// Data wrapps the object that is needed for the services
+type Data struct {
+	Helpers Helpers
+	Obj     interface{}
+	Config  *config.Config
+}