azurerm_monitor_diagnostic_setting - Fix crash around `retention_po…

…licy` (#6911) Fixes #6908
hashicorp · May 13, 2020 · a3132c0 · a3132c0
1 parent f91f3b0
commit a3132c0
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/azurerm/internal/services/monitor/monitor_diagnostic_setting_resource.go b/azurerm/internal/services/monitor/monitor_diagnostic_setting_resource.go
@@ -463,7 +463,7 @@ func expandMonitorDiagnosticsSettingsMetrics(input []interface{}) []insights.Met
 
 		policiesRaw := v["retention_policy"].([]interface{})
 		var retentionPolicy *insights.RetentionPolicy
-		if policiesRaw != nil {
+		if len(policiesRaw) > 0 && policiesRaw[0] != nil {
 			policyRaw := policiesRaw[0].(map[string]interface{})
 			retentionDays := policyRaw["days"].(int)
 			retentionEnabled := policyRaw["enabled"].(bool)