Use /tmp for Kafka startup script (#1302)

Author: cristianrgreco

packages/modules/kafka/src/kafka-container-7.test.ts

@@ -18,6 +18,14 @@ describe("KafkaContainer", { timeout: 240_000 }, () => {
     await using container = await new KafkaContainer(IMAGE).start();
 
     await assertMessageProducedAndConsumed(container);
+
+    const { exitCode } = await container.exec([
+      "sh",
+      "-c",
+      "test -f /tmp/testcontainers_start.sh && test ! -f /testcontainers_start.sh",
+    ]);
+
+    expect(exitCode).toBe(0);
   });
 
   it("should connect using in-built zoo-keeper and custom network", async () => {

packages/modules/kafka/src/kafka-container.ts

@@ -19,7 +19,7 @@ const KAFKA_BROKER_PORT = 9092;
 const KAFKA_CONTROLLER_PORT = 9094;
 const DEFAULT_ZOOKEEPER_PORT = 2181;
 const DEFAULT_CLUSTER_ID = "4L6g3nShT-eMCtK--X86sw";
-const STARTER_SCRIPT = "/testcontainers_start.sh";
+const STARTER_SCRIPT = "/tmp/testcontainers_start.sh";
 const WAIT_FOR_SCRIPT_MESSAGE = "Waiting for script...";
 
 // https://docs.confluent.io/platform/7.0.0/release-notes/index.html#ak-raft-kraft