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• Definition: Docker Password Management involves the mechanisms and tools used to securely store, manage, and authenticate passwords and credentials on the Docker platform.
• Function: Ensures that credentials used to access container registries and other secure resources are stored securely and managed properly.
• Components:

   * '''Docker CLI''': Command-line interface for managing Docker containers, images, and credentials.
   * '''Docker Secrets''': A feature to manage sensitive data such as passwords, tokens, and certificates, and securely inject them into running containers.
   * '''Credential Store''': Stores credentials for container registries securely, using native stores like `pass`, `osxkeychain`, `wincred`, or others.

• Features:

   * '''Credential Storage''': Securely stores passwords and tokens for accessing private container registries.
   * '''Secret Management''': Manages secrets that can be securely injected into containers.
   * '''Integration''': Works with various credential stores and secrets management systems.

• Usage: Essential for maintaining the security of container operations, ensuring that only authorized users and processes can access secure resources.

• Logging into a container registry with Docker:

   ```bash
   docker login 
   ```
   This command prompts for a username and password, which are then securely stored in the configured credential store.

• Using secrets in Docker Swarm:

   1. Create a secret:
      ```bash
      echo "mysecretpassword" ]] | [[ docker secret create my_secret -
      ```
   2. Use the secret in a service:
      ```bash
      docker service create --name my_service --secret my_secret my_image
      ```

• Configuring Docker to use a credential store:

   * Edit or create the `~/.docker/config.json` file to specify the desired credential store, such as:
     ```json
     {
       "credsStore": "pass"
     }
     ```

• Retrieving a stored credential:

   * Use the Docker CLI to list stored credentials:
     ```bash
     docker-credential- list
     ```
   * Retrieve a specific credential:
     ```bash
     docker-credential- get 
     ```

• Docker Password Management: Involves securely storing and managing passwords and credentials for accessing container registries and other resources using tools like Docker CLI, Docker Secrets, and various credential stores, ensuring secure container operations.