fix(ecs): fix splunk-sourcetype (#6128)

* fix(splunk-log-driver): correct misspelling of splunk-sourcetype (#5456)

* Reverted changes to yarn.lock

packages/@aws-cdk/aws-ecs/lib/log-drivers/splunk-log-driver.ts

@@ -132,7 +132,7 @@ export class SplunkLogDriver extends LogDriver {
         'splunk-token': this.props.token,
         'splunk-url': this.props.url,
         'splunk-source': this.props.source,
-        'splunk-sourceType': this.props.sourceType,
+        'splunk-sourcetype': this.props.sourceType,
         'splunk-index': this.props.index,
         'splunk-capath': this.props.caPath,
         'splunk-caname': this.props.caName,

packages/@aws-cdk/aws-ecs/test/test.splunk-log-driver.ts

@@ -72,4 +72,35 @@ export = {
 
     test.done();
   },
+
+  "create a splunk log driver using splunk with sourcetype defined"(test: Test) {
+    // WHEN
+    td.addContainer('Container', {
+      image,
+      logging: ecs.LogDrivers.splunk({
+        token: cdk.SecretValue.secretsManager('my-splunk-token'),
+        url: 'my-splunk-url',
+        sourceType: 'my-source-type'
+      }),
+      memoryLimitMiB: 128
+    });
+
+    // THEN
+    expect(stack).to(haveResourceLike('AWS::ECS::TaskDefinition', {
+      ContainerDefinitions: [
+        {
+          LogConfiguration: {
+            LogDriver: 'splunk',
+            Options: {
+              'splunk-token': '{{resolve:secretsmanager:my-splunk-token:SecretString:::}}',
+              'splunk-url': 'my-splunk-url',
+              'splunk-sourcetype': 'my-source-type'
+            }
+          }
+        }
+      ]
+    }));
+
+    test.done();
+  },
 };