Space Efficient Filesystems for Firecracker
August 12, 2023
Using device mapper we can use a layered approach to share common filesystem parts across VMs and provide a copy-on-write layer for each VM.
I am a software engineer interested in all things cloud, security, observability and Linux. I enjoy building the software that runs platforms.
August 12, 2023
Using device mapper we can use a layered approach to share common filesystem parts across VMs and provide a copy-on-write layer for each VM.
September 18, 2021
What are zombie processes, where do they come from and how do we get rid of them?
April 14, 2020
Testing modules that interact with the filesystem can be tricky. Typically you mock indivdual methods of the `fs` module, but his can be a bit tedious if you have to mock a lot of different calls.
March 08, 2020
The parandrus or tarandos was an animal from medieval bestiaries. They were ox-sized, long-haired, with antlers and cloven hooves, but could change the colour of their fur to obtain camouflage.
January 04, 2020
This post shows how to write a logging middleware for HTTP handlers that can log the status code of the response.