Container Volumes

Container Volumes

• Volumes provide a mechanism to persist data generated or used by containers.
• Unlike ephemeral storage within a container, volumes allow data to persist even when the container stops or is removed.

Types of Container Volumes

1. Anonymous Volumes

• Automatically created and managed by the container runtime.

2. Named Volumes

• Explicitly created by users and easily reused by multiple containers.

3. Bind Mounts

• Link specific host directories or files to a container.

Why Use Volumes?

• Retain data across container restarts or updates.
• Share data between multiple containers.
• Decouple data storage from the container runtime.

Managing Volumes

1. Create a Named Volume

    container-cli volume create my_data_volume
   

2. Run a Container with the Volume

    container-cli run --name app2 -v my_data_volume:/data my_app_image
   

3. Inspect the Volume

    container-cli volume inspect my_data_volume
   

4. List All Volumes

    container-cli volume list