Tag

#dockerfile

2 stories tagged dockerfile.

Docker container vs virtual machine: what changes

A Docker container vs virtual machine comparison: containers share the host kernel and run isolated processes in megabytes, while VMs virtualize hardware and carry a full OS in gigabytes. The right base image and layer order cut a 2 GB image to under 100 MB.

Data Today Engineering Desk · Aug 13, 2026

Engineering

How to write a Dockerfile that does not waste your time

To write a Dockerfile that builds fast, order instructions from least to most frequently changing. Copy dependency files before source code so Docker reuses cached layers. Reordering two lines cut rebuild time 81 percent, from 37.4 to 7.1 seconds.

Data Today Engineering Desk · Aug 13, 2026