Merge pull request #142 from kuettai/main

Enhance #141

.gitignore

@@ -1,4 +1,5 @@
 # Custom
+.DS_Store
 test*
 crossAccounts.json
 output.zip

services/efs/drivers/EfsDriver.py

@@ -42,3 +42,8 @@ def _checkBackupPolicy(self):
 
         if backup['BackupPolicy']['Status'] == 'DISABLED':
             self.results['AutomatedBackup'] = [-1, 'Disabled']
+
+    def _checkSingleAZ(self):
+        if 'AvailabilityZoneName' in self.efs:
+            self.results['IsSingleAZ'] = [-1, self.efs['AvailabilityZoneName']]
+

services/efs/efs.reporter.json

@@ -37,5 +37,20 @@
         "ref": [
             "[EFS Backup]<https://docs.aws.amazon.com/efs/latest/ug/awsbackup.html>"    
         ]
+    },
+    "IsSingleAZ": {
+        "category": "R",
+        "^description": "Using EFS in SingleAZ is only suitable for development workload. It offers up to 47% cost saving compare to EFS Standard storage classes. It is not resilient to the loss of the Availability Zone.",
+        "downtime": 1,
+        "slowness": 0,
+        "additionalCost": 1,
+        "criticality": "M",
+        "needFullTest": 1,
+        "shortDesc": "Recreate new Regional EFS and migrate data over",
+        "ref": [
+            "[Create EFS]<https://docs.aws.amazon.com/efs/latest/ug/creating-using-create-fs.html>",
+            "[Options to transfer data]<https://docs.aws.amazon.com/efs/latest/ug/transfer-data-to-efs.html>",
+            "[Comparison between Regional vs SingleAZ]<https://docs.aws.amazon.com/efs/latest/ug/features.html>"
+        ]
     }
 }