blog.oddbit.com

Applying custom configuration to Nginx Gateway Fabric

Processing deeply nested JSON with jq streams

Managing containers with Pytest fixtures

NAT between identical networks using VRF

Simple error handling in C

A review of the Garmin Fenix 6(x)

Packet, packet, who's got the packet?

Setting up an IPv6 VLAN

Using KeyOxide

Delete GitHub workflow runs using the gh cli

Kubernetes, connection timeouts, and the importance of labels

Directing different ports to different containers with Traefik

Udev rules for CH340 serial devices

A pair of userscripts for cleaning up Stack Exchange sites

Kubernetes External Secrets

Connecting OpenShift to an External Ceph Cluster

Creating a VXLAN overlay network with Open vSwitch

Getting started with KSOPS

Tools for writing about Git

File reorganization

Editing a commit message without git rebase

Object storage with OpenShift Container Storage

Remediating poor PyPi performance with DevPi

symtool: a tool for interacting with your SYM-1

To sleep or not to sleep?

Animating a map of Covid in the Northeast US

A note about running gpgv

Installing metallb on OpenShift with Kustomize

Vortex Core Keyboard Review

Building multi-architecture images with GitHub Actions

OpenShift and CNV: MAC address management in CNV 2.4

OpenShift and CNV: Exposing virtualized services

OpenShift and CNV: Installer network requirements

You can't get an N95 mask: Now what?

Grove Beginner Kit for Arduino (part 2): First look

Grove Beginner Kit for Arduino (part 1)

Some thoughts on Mechanical Keyboards

I see you have the machine that goes ping...

A passwordless serial console for your Raspberry Pi

Configuring Open vSwitch with nmcli

How long is a cold spell in Boston?

Snarl: A tool for literate blogging

OVN and DHCP: A minimal example

TM-V71A and Linux, part 1: Programming mode

Avoid rebase hell: squashing without rebasing

Git Etiquette: Commit messages and pull requests

Running Keystone with Docker Compose

A DIY CPAP Battery Box

Unpacking a Python regular expression

New comment system

New static site generator

Adding support for privilege escalation to Ansible's docker connection driver

Writing Ansible filter plugins

Docker build learns about secrets and ssh agent forwarding

In which I PEBKAC so you don't have to

ATOMIC_BLOCK magic in avr-libc

AVR micro-optimization: Avr-gcc and --short-enums

AVR micro-optimization: Losing malloc

Debugging attiny85 code, part 1: simavr and gdb

Debugging attiny85 code, part 2: Automating GDB with scripts

Debugging attiny85 code, part 3: Tracing with simavr

PiPower: A Raspberry Pi UPS

Integrating Bitwarden with Ansible

Systemd unit for managing USB gadgets

Configuring a static address for wlan0 on Raspbian Stretch

Using a TM1637 LED module with CircuitPython

Multiple 1-Wire Buses on the Raspberry Pi

Using Docker macvlan networks

Listening for connections on all ports/any port

Grouping aggregation queries in Gnocchi 4.0.x

Listing iptables rules with line numbers

Pelican and theme update

Fun with devicemapper snapshots

Safely restarting an OpenStack server with Ansible

Some notes on PWM on the Raspberry Pi

Ansible for Infrastructure Testing

Better bulk filtering for Gmail

OpenStack, Containers, and Logging

FAA Cannot Require Drone Registration

Making sure your Gerrit changes aren't broken

Exploring YAQL Expressions

Connecting another vm to your tripleo-quickstart deployment

A collection of git tips

Deploying an HA OpenStack development environment with tripleo-quickstart

Gruf gets superpowers

Gruf, a Gerrit command line utility

A systemd-nspawn connection driver for Ansible

Folding long lines in Ansible inventory files

Systemd-nspawn for fun and...well, mostly for fun

Installing pyspatialite on Fedora

Ansible 2.0: New OpenStack modules

Automatic git cache

Stupid Ansible Tricks: Running a role from the command line

Bootstrapping Ansible on Fedora 23

Ansible 2.0: The Docker connection driver

Running NTP in a Container

Migrating Cinder volumes between OpenStack environments using shared NFS storage

Provider external networks (in an appropriate amount of detail)

In which we are amazed it doesn't all fall apart

Mapping local users to Kerberos principals with SSSD

OpenStack Networking without DHCP

Heat-kubernetes Demo with Autoscaling

Teach git about GIT_SSL_CIPHER_LIST

Suggestions for the Docker MAINTAINER directive

Using tools badly: time shifting git commits with Workinghours

Booting cloud images with libvirt

Diagnosing problems with an OpenStack deployment

Converting hexadecimal ip addresses to dotted quads with Bash

Visualizing Pacemaker resource constraints

Stupid Pacemaker XML tricks

Unpacking Docker images with Undocker

Installing nova-docker with devstack

External networking for Kubernetes services

Installing nova-docker on Fedora 21/RDO Juno

Creating minimal Docker images from dynamically linked ELF binaries

Filtering libvirt XML in Nova

Docker vs. PrivateTmp

Running nova-libvirt and nova-docker on the same host

Building a minimal web server for testing Kubernetes

Accessing the serial console of your Nova servers

Cloud-init and the case of the changing hostname

Starting systemd services without blocking

Fedora Atomic, OpenStack, and Kubernetes (oh my)

Creating a Windows image for OpenStack

Building Docker images with Puppet

Docker networking with dedicated network containers

Integrating custom code with Nova using hooks

Stupid command line tricks: Quickly share screen captures

Heat Hangout

Visualizing Heat stacks

Docker plugin bugs

Annotated documentation for DockerInc::Docker::Container

Docker plugin for OpenStack Heat

Using wait conditions with Heat

nova-docker and environment variables

lvcache: a tool for managing LVM caches

Four ways to connect a docker container to a local network

gpio-watch: Run scripts in response to GPIO signals

Tracking down a kernel bug with git bisect

Booting an instance with multiple fixed addresses

Multiple external networks with a single L3 agent

Video: Configuring OpenStack's external bridge on a single-interface system

Open vSwitch and persistent MAC addresses

Solved: Open vSwitch and persistent MAC addresses

Sharing a terminal session with termshare

Fedora and OVS Bridge Interfaces

Firewalld, NetworkManager, and OpenStack

Flat networks with ML2 and OpenVSwitch

Extending Puppet

Multinode OpenStack with Packstack

Show OVS external-ids

Stupid OpenStack Tricks

Direct access to Nova metadata

RDO Bug Triage

Visualizing Neutron Networking with GraphViz

An introduction to OpenStack Heat

A Python interface to signalfd() using FFI

Long polling with Javascript and Python

Sockets on OpenShift

A unified CLI for OpenStack

Automatic maintenance of tag feeds

Enabled blog comments

json-tools: cli for generating and filtering json

Quantum in Too Much Detail

Moving to GitHub

A random collection of OpenStack Tools

Why does the Neutron documentation recommend three interfaces?

Automatic hostname entries for libvirt domains

Interrupts on the PiFace

Generating a memberOf attribute for posixGroups

Split concatenated certificates with awk

Did Arch Linux eat your KVM?

I2C on the Raspberry Pi

Interrupt driven GPIO with Python

Controlling a servo with your Arduino

A quote about XMLRPC

A systemd unit for ucarp

Running dhcpcd under LXC

Cleaning up LXC cgroups

How do I LXC console?

Systemd and the case of the missing network

A second look at Arch Linux

Parsing Libvirt XML with xmllint

Getting the IP address of a libvirt domain

A first look at Arch Linux

Service discovery in the cloud using Avahi

Using Oracle JDK under CentOS

Document classification with POPFile

Converting HTML to Markdown

Relocating from Blogger

Posting to Scriptogr.am using the API

Private /tmp directories in Fedora

Automatic configuration of Windows instances in OpenStack, part 1

Generating random passwords in PowerShell

Waiting for networking using PowerShell

Growing a filesystem on a virtual disk

Parsing XML with Awk

Markdown in your Email

Chasing OpenStack idle connection timeouts

Git fetch, tags, remotes, and more

Capturing Envoy Data

Enphase Envoy XML Data Format

Rate limiting made simple

Puppet, scope, and inheritance

Fixing RPM with evil magic

Installing CrashPlan under FreeBSD 8

Signing data with ssh-agent

Converting OpenSSH public keys

Python ctypes module

Importing vCard contacts into an LG 420G

Patch to gPXE dhcp command

Kerberos authenticated queries to Active Directory

Pushing a Git repository to Subversion

LDAP redundancy through proxy servers

Apache virtual host statistics

Merging directories with OpenLDAP's Meta backend

Filtering Blogger feeds

Funny usage message

MBTA realtime XML feed

Blocking VNC with iptables

NFS and the 16-group limit

Cleaning up Subversion with Git

Linux UPnP Gateway

Retrieving Blogger posts by post id

Fring: How not to handle registration