Docker volume in Container Registry
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Updated at November 8, 2023
A Docker volume is a tool for the permanent storage of information on a VM instance. The data in the volume is stored independently of containers. If you delete a container, both its volumes and data will persist. Deleting a volume is a separate operation.
Volumes and Docker Compose
You can use Docker Compose to create and manage multiple volumes. When docker-compose up is called for the first time, the defined volumes will be created. These volumes will be used in subsequent calls.
If you run a container that creates a new volume, the content from the mount folder will be copied to the volume. Containers that have mounted the volume will gain access to the volume data.