public Container getContainerByName(String containerName) {
    return containerNameToContainerMap.get(containerName);
  }
Gets the {@link Container} of this account with the specified container name.
@param containerName The name of the container to get.
@return The {@link Container} of this account with the specified name, or {@code null} if such a
                   container does not exist.
ambry-api/src/main/java/com/github/ambry/account/Account.java