Docker Volume Cross Platform Consistency

Scenario:

You need to create a Docker volume named myvol and demonstrate cross-platform consistency - that data written from one container is readable by a different container using a different base image.

Task:

Create a Docker volume named myvol, mount it at /data, write a file hello.txt to it from an ubuntu:latest container, then read the same file from an alpine:latest container, ensuring the file exists at /var/lib/docker/volumes/myvol/_data/hello.txt on the host during validation.

Example:

# Writing from Ubuntu
ubuntu@container:/# echo "Hello from Ubuntu!" > /data/hello.txt

# Reading from Alpine
/ # cat /data/hello.txt
Hello from Ubuntu!

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