Docker, Limit Storage Space

You can use the storage_opt key in the Docker Compose file to set storage size limits for containers.

Here's an example docker-compose.yml file that sets a storage size limit of 10GB for a container:

version: '3'

services:
  myservice:
    image: myimage
    storage_opt:
      size: 10G

In this example, myservice is the name of the service you want to create, myimage is the name of the Docker image you want to use for the service, and storage_opt is the key that specifies the storage options for the container.

You can also set other storage options in the storage_opt key, such as the dm.basesize option to set the base size of the container's thin pool volume. Here's an example that sets both the size and base size options:

version: '3'

services:
  myservice:
    image: myimage
    storage_opt:
      size: 10G
      dm.basesize: 5G

In this example, the container will have a storage size limit of 10GB and a base size of 5GB for the thin pool volume.