instruction: Create a Dockerfile for configuration
output: ```dockerfile
  from the configuration by the cluster.
  
  Examples
  Create the objects defined in a configuration file:
  kubectl create -f nginx.yaml
  Delete the objects defined in two configuration files:
  kubectl delete -f nginx.yaml -f redis.yaml
  Update the objects defined in a configuration file by overwriting
  the live configuration:
  kubectl replace -f nginx.yaml
  Trade-offs
  Advantages compared to imperative commands:
  
  Object configuration can be stored in a source control system such as Git.
  Object configuration can integrate with processes such as reviewing changes before push and audit trails.
  Object configuration provides a template for creating new objects.
  
  Disadvantages compared to imperative commands:
  
  Object configuration requires basic understanding of the object schema.
  Object configuration requires the additional step of writing a YAML file.
  
  Advantages compared to declarative object configuration:
  
  Imperative object configuration behavior is simpler and easier to understand.
  As of Kubernetes version 1.5, imperative object configuration is more mature.
  
  Disadvantages compared to declarative object configuration:
  
  Imperative object configuration works best on files, not directories.
  Updates to live objects must be reflected in configuration files, or they will be lost during the next replacement.
  
  Declarative object configuration
  When using declarative object configuration, a user operates on object
  configuration files stored locally, however the user does not define the
  operations to be taken on the files. Create, update, and delete operations
  are automatically detected per-object by kubectl. This enables working on
  directories, where different operations might be needed for different objects.
  
  Note: Declarative object configuration retains changes made by other
  writers, even if the changes are not merged back to the object configuration file.
  This is possible by using the patch API operation to write only
  observed differences, instead of using the replace
  API operation to replace the entire object configuration.
  
  Examples
  Process all object configuration files in the configs directory, and create or
  patch the live objects. You can first diff to see what changes are going to be
  made, and then apply:
  kubectl diff -f configs/
  kubectl apply -f configs/
  Recursively process directories:
  kubectl diff -R -f configs/
  kubectl apply -R -f configs/
  Trade-offs
  Advantages compared to imperative object configuration:
  
  Changes made directly to live objects are retained, even if they are not merged back into the configuration files.
  Declarative object configuration has better support for operating on directories and automatically detecting operation types (create, patch, delete) per-object.
  
  Disadvantages compared to imperative object configuration:
  
  Declarative object configuration is harder to debug and understand results when they are unexpected.
  Partial updates using diffs create complex merge and patch operations.
  
  What's next
  
  Managing Kubernetes Objects Using Imperative Commands
  Imperative Management of Kubernetes Objects Using Configuration Files
  Declarative Management of Kubernetes Objects Using Configuration Files
  Declarative Management of Kubernetes Objects Using Kustomize
  Kubectl Command Reference
  Kubectl Book
  Kubernetes API Reference
  
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   Last modified January 08, 2022 at 6:09 PM PST: Reorganize Working with Kubernetes Objects section (634c17f61c)
  
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  Management techniques
  Imperative commands
  
  Examples
  Trade-offs
  
  Imperative object configuration
  
  Examples
  Trade-offs
  
  Declarative object configuration
  
  Examples
  Trade-offs
  
  What's next
  
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  © 2025 The Kubernetes Authors | Documentation Distributed under CC BY 4.0
  
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  ```