refactor(testcontainers): add copy of mounting directory

Since it is possible to use test containers in conjunction
with DinD services, in which paths are mounted relative to
the DinD container, and not relative to the paths of the
container in which the tests are directly launched, it
is necessary to add a copy of the mounted directory.

Author: nickkkccc

testcontainers/src/main/java/org/testcontainers/containers/tarantool/Tarantool2Container.java

@@ -19,6 +19,7 @@
 import org.testcontainers.containers.SelinuxContext;
 import org.testcontainers.containers.utils.Utils;
 import org.testcontainers.utility.DockerImageName;
+import org.testcontainers.utility.MountableFile;
 
 /**
  * Testcontainers for Tarantool version 2.11.x.
@@ -52,6 +53,23 @@ private Tarantool2Container(DockerImageName dockerImageName, String initScript,
     this.mountPath = Utils.createTempDirectory(this.node);
   }
 
+  /**
+   * @implNote We copy all files from the mounted directory to the container. This is necessary so
+   *     that all monitored files got into a container while working in DinD. Mounting in such an
+   *     environment follows the following rules:
+   *     <p>
+   *     <ul>
+   *       <li>When we run tests on a system where dockerd is located locally. Mounting occurs
+   *           relatively the current host (where dockerd is located).
+   *       <li>When we run tests using DinD as a separate service: the tests are executed in the
+   *           so-called build-container, which contains all test files and data. Test containers
+   *           (tarantool container), which are created testcontainers are launched inside the
+   *           so-called DinD container. Mounting is performed relative to the directories of the
+   *           DinD container, and not relative to the build container. For this reason we use
+   *           additional copying of the mounted directory so that the files in the mounted
+   *           directory were also on the DinD container.
+   *     </ul>
+   */
   @Override
   protected void configure() {
     if (configured) {
@@ -74,6 +92,11 @@ protected void configure() {
           DEFAULT_DATA_DIR.toAbsolutePath().toString(),
           BindMode.READ_WRITE,
           SelinuxContext.SHARED);
+
+      withCopyFileToContainer(
+          MountableFile.forHostPath(this.mountPath),
+          TarantoolContainer.DEFAULT_DATA_DIR.toAbsolutePath().toString());
+
       addExposedPort(DEFAULT_TARANTOOL_PORT);
 
       addEnv("TT_MEMTX_DIR", DEFAULT_DATA_DIR.toAbsolutePath().toString());