omg.dje.li

Quick and easy yum repo mirroring with containers!

Tue, 19 Jan 2021 19:44:38 +1100

This is another one of those reminders to myself that reposync on Oracle Linux 8 has the ability to sync all packages and metadata and it’s installed by default in the oraclelinux:8 container image. Combined those two pieces of knowledge and you get a quick and easy yum repo mirroring solution.

Building subscription-manager RPMs for Oracle Linux

Wed, 13 Jan 2021 12:15:00 +1100

The examples scripts and container image definitions provided below to build Subscription Manager packages for Oracle Linux have been published to Djelibeybi/build-subscription-manager on GitHub.

Please don't just say hello in chat

Fri, 10 Jul 2020 08:00:00 +1100

Please don’t do this: 1 2 3 4 5 6 7 you: Hi me: Hello. ... time passes ... you: I'm working on [something] and I'm trying to do [etc...] me: Oh, that's [answer...] This is like calling someone on the phone and then putting them on hold. Instead, try this: 1 2 you: Hi -- I'm working on [something] and I'm trying to do [etc...] me: [answers question] This is way more likly to get you an answer sooner, and it avoids making the other person wait.

Add an Elgato Keylight Air to HomeKit

Mon, 29 Jun 2020 16:41:32 +1000

I’ve been meaning to add my Elgato Keylight Air to HomeKit for a while, and thanks to this post on Reddit I finally worked out how. And it turned out to be pretty simple. Pre-requisites Have a working Homebridge system connected to HomeKit. Install the homebridge-http-lightbulb plugin. Before you begin Assign your Keylight Air a static IP address via DHCP. Replace 192.168.1.80 in the JSON configuration below with the IP address you assigned in the previous step.

Triggering HomeKit automations using an Elgato Stream Deck

Wed, 20 May 2020 12:54:14 +1000

In a previous post, I explained how to add Flic buttons to HomeKit using my homebridge-button-platform plugin. The same plugin can now be used to enable HomeKit automation from an Elgato Stream Deck.

Triggering LIFX firmware effects with Photons Interactor

Tue, 10 Mar 2020 12:33:03 +1100

In my previous post, I provided one method of starting and stopping firmware effects using Photons Interactor. Since that post was written, delfick has added native support for effects (with theme support), so this is a quick post to demonstrate how to use these new commands.

Advanced LIFX LAN control for Flic with Photons Interactor

Fri, 21 Feb 2020 14:53:42 +1100

The Flic Hub LR has local LIFX LAN support, but the functionality is quite limited. It only allows you to toggle power state, turn a bulb on/off or change its colour. The only other option is the ability to trigger a scene via the LIFX Cloud. This post details a third option, which is leveraging a local Photons Interactor server to do complex transfomations triggered by a Flic.

Adding Flic buttons to HomeKit using Homebridge

Wed, 19 Feb 2020 15:14:05 +1100

Note: The Flic Hub LR is now HomeKit certified. This plugin is provided for legacy purposes, but will not receive regular updates.

My Flic Hub LR and Flic 2 buttons finally arrived today and as my primary automation system is HomeKit, I set about working out how to get them integrated via Homebridge. The result is a generic Homebridge plugin that creates a StatelessProgrammableSwitch which is identical to a Flic in operation. It supports three press events: single, double and hold, but doesn’t maintain state.

Disabling WMM on Ubiquiti UniFi UAPs

Thu, 13 Feb 2020 07:13:52 +1100

My home network runs exclusively on Ubiquiti UniFi hardware which is fantastic, but it hides the WMM configuration setting from the web-based UI. Disabling Airtime Fairness and WMM is one of the first things you should do for any SSID dedicated to low-powered IoT devices like LIFX smart bulbs.

Improving the LIFX Day & Dusk functionality

Sat, 01 Feb 2020 08:19:37 +1100

My docker-lifx-daydusk project attempts to solve two usability concerns with the Day & Dusk functionality built-into the LIFX app: it does not require a connection to the LIFX Cloud and it provides more configurable options for each scheduled transition event.

Creating HomeKit Switches for LIFX Morph and Flame Effects

Wed, 17 Apr 2019 15:32:17 +1000

I know a bunch of HomeKit enthusiasts that use Homebridge even with LIFX’s native HomeKit support in their newer bulbs. After the LIFX team implemented firmware effect calls in the HTTP API, I knew it would be possible to create a HomeKit switch that would turn an effect on and off and here it is.

Using Caddy With Homebridge

Wed, 17 Apr 2019 14:41:25 +1000

I’m a huge fan of Homebridge and use the web interface provided by homebridge-config-ui-x extensively. I’m also a huge fan of Caddy to automate the creation and management of HTTPS-based websites using Let’s Encrypt. Lot’s of people ask me why I’m such a fan of Caddy and it’s because configuring it to reverse proxy something is usually pretty easy. In this case, the Caddyfile for homebridge-config-ui-x is as simple as:

Using Let's Encrypt SSL Certificates with Spacewalk

Fri, 07 Apr 2017 09:21:15 +1000

By default, Spacewalk creates and uses self-signed certificates for its SSL configuration. This requires the end-user to accept and trust the CA certificiate created by Spacewalk in each browser. This post details how to replace the self-signed certificates with CA-signed certificates from Let’s Encrypt.

Oracle Linux support for Clair and Vuls

Wed, 22 Mar 2017 14:51:50 +1100

In order to facilitate simple scanning of Docker and Rkt images based on Oracle Linux, I added support for Oracle Linux to both Clair and Vuls (VULnerability Scanner).

Configuring Spacewalk's jabberd to use a PostgreSQL backend

Sat, 04 Mar 2017 00:00:00 +0000

This post details how to switch the database backed used by jabberd on a Spacewalk server to use a PostgreSQL Database so that osa-dispatcher becomes stable.

Configuring Spacewalk's jabberd to use an SQLite backend

Fri, 24 Feb 2017 00:00:00 +0000

This post details how to switch the database backed used by jabberd on a Spacewalk server to use a SQLite Database so that osa-dispatcher becomes stable.

Replacing NGINX with Caddy

Mon, 20 Feb 2017 09:55:47 +1100

I wanted to find a way to sync content between my (awesome) vanity URL at https://omg.dje.li with the same static site built by Hugo for https://djelibeybi.github.io.

Automating Hugo build with GitLab CI

Sun, 19 Feb 2017 07:57:57 +1100

WARNING: This post contains links to content that no longer exists. Do not use this blog post as a guide. It remains for archive purposes only.

I found a ton of posts that describe how to use Hugo and GitLab CI to create and host a static site on GitLab Pages.

However, I had a different requirement: I want to use a local GitLab CE instance to store my content, use GitLab CI (locally) to build the static output and then push that output to GitHub to publish on GitHub Pages.

Running a Portus Stack on Oracle Linux 7

Fri, 17 Feb 2017 15:55:58 +1100

How to setup a Docker Registry with Portus frontend proxied by NGINX so that both the Registry and Portus appear on the same hostname, all properly SSL-enabled using Let’s Encrypt.

Using Oracle Storage Cloud for a Docker Registry

Thu, 16 Feb 2017 09:05:42 +1100

It’s possible to configure a Docker Registry to use Oracle Storage Cloud by leveraging its OpenStack Swift compatible interface and the swift storage driver.

Push-button Composition of Oracle Application and Database Environments

Mon, 14 Nov 2016 15:45:56 +1100

Oracle OpenStack for Oracle Linux simplifies deployment and management of OpenStack services, providing a cloud platform optimized for the enterprise.

Learn how Oracle deploys complete technology stacks with the Oracle Database based on building blocks defined in the OpenStack Murano application catalog.

Deploying and Upgrading OpenStack using Docker Containers

Thu, 05 May 2016 15:41:41 +1100

Leveraging OpenStack upstream Kolla project, Oracle has transformed the deployment. OpenStack services are deployed as micro-services in docker containers which are fully independent from each other.

Transcendent Memory: Not Just for Virtualization Anymore!

Wed, 30 Jan 2013 00:00:00 +0000

Learn why RAM is no longer cheap, get the basics of Transcendent Memory including the kernel changes, and see how tmem can provide unprecedented flexibility toward optimizing RAM utilization in future data centers.

I Can't Believe This is Butter! A tour of btrfs

Thu, 19 Jan 2012 15:35:14 +1100

Btrfs (“Butter FS”) is a new copy on write filesystem for Linux aimed at implementing advanced features while focusing on fault tolerance, repair and easy administration. Initially developed by Oracle, Btrfs is licensed under the GPL and open for contribution from anyone.