Jérôme Petazzoni is a tech educator and engineer specializing in Kubernetes, Linux, Terraform, and cloud-native infrastructure. He shares practical tutorials, troubleshooting tips, and insights from hundreds of talks and conference experiences.
51 articles from this blog
Explains how to attach to Docker containers after upgrading to version 0.9, which uses libcontainer, by using tools like nsenter or nsinit.
Explains how to resize Docker containers using the Device Mapper storage driver, with notes on outdated methods and modern alternatives.
Guide to setting up a network boot (PXE) server inside a Docker container for easy OS installation and diskless booting.
A guide to managing Python project dependencies within Docker containers, comparing methods like using distro packages and virtualenv.
A technical overview of Flynn, an open-source Platform-as-a-Service (PaaS) built on Docker, covering its architecture and core components.
Exploring function pointers in IDL (Interactive Data Language) for refactoring legacy scientific code, with insights into the language's syntax and quirks.
A guide to securing the Docker API by using SSL certificates and socat for encrypted, authenticated remote connections.
A guide explaining how to manually configure Docker's network bridge to assign containers IPs from a specific, non-default address range.
Explains how to access and gather CPU, memory, I/O, and network usage metrics from Linux control groups (cgroups) for LXC and Docker containers.
How to use the policy-rc.d script on Debian/Ubuntu to prevent services from starting automatically during package installation or upgrade.
Introduces Gunsub, a Python tool to manage GitHub notifications by automatically unsubscribing from passive threads after the first message.
