instruction: Create a Dockerfile for configuration
output: ```dockerfile
  from multiple files in the same
  directory. When you are creating a ConfigMap based on a directory, kubectl identifies files
  whose filename is a valid key in the directory and packages each of those files into the new
  ConfigMap. Any directory entries except regular files are ignored (for example: subdirectories,
  symlinks, devices, pipes, and more).Note:Each filename being used for ConfigMap creation must consist of only acceptable characters,
  which are: letters (A to Z and a to z), digits (0 to 9), '-', '_', or '.'.
  If you use kubectl create configmap with a directory where any of the file names contains
  an unacceptable character, the kubectl command may fail.The kubectl command does not print an error when it encounters an invalid filename.Create the local directory:mkdir -p configure-pod-container/configmap/
  Now, download the sample configuration and create the ConfigMap:# Download the sample files into `configure-pod-container/configmap/` directory
  wget https://kubernetes.io/examples/configmap/game.properties -O configure-pod-container/configmap/game.properties
  wget https://kubernetes.io/examples/configmap/ui.properties -O configure-pod-container/configmap/ui.properties
  
  # Create the ConfigMap
  kubectl create configmap game-config --
  ```