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Change Detection using Oxidized

Tags : General
Oxidized is a Linux based service which has the ability to monitor a device’s configuration, including software and hardware. Current configuration is backed up from each device and stored to a GIT repository to maintain history of changes.

The process is very simple: Login to each device in the router list router.db, Run Commands to get the information that will be saved Clean the output Commit the Changes to GIT Repository The tool is coded in Ruby, and implements a Domain Specific Language (DSL) for interaction. Finally, there is a Web based User experience included in the solution so we can get a fast overview of the world.

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Azure Functions Scaffolding

Tags : General
Dependency injection is an approach to solve inversion of control that facilitates components that are easier to test and mock. To better understand dependency injection, this article walks through the creation of a simple DI framework and explains step-by-step how it works.

Most of my time is spent working on Governance in Azure; and while the cloud native plumbing is amzaing, there are still some gaps which need to be filled, and my go-to tool of choice is Azure Functions. One of the products which I oversee the devleopment of is called the ‘Concierge’ and recently maintaining it has been a challange instead of a joy. It was architected with Fuctions v1 principals, and its well time for a look inside the tool box.

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Azure EA - Delegating Privileges

Delegating Azure Enterprise Agreement Owner privileges to a Service Principal (SPN)

EA Department / Account Administrator

Under the Enterprise agreement we have some different Persona’s, which have quite different abilities and operations upon which they are permitted to preform.

Before we being the process of delegation, It is important to understand this Hierarchy, so we can correctly proceed with the technical work ahead.

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Azure IaC - Function Keys

Retrieve the Function Host Keys while deploying an ARM template

Todays conundrum: As I deploy a new Function Application, I need a simple methodology to retrieve the Host Keys for the function application so that I validate the deployment has been successful; and potentially pass on the key to related services, for example API Management.

As before, I am leveraging templates, and will stay cloud native; this time depending on the functions Output ability to present the keys.

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Azure IaC - Appending Tags

Dynamically appending Tags to our ARM template with the union function

Todays conundrum: As I am leveraging templates, there will always be some standard tags I require to implement within the template, but I also require to provide additional tags as a parameter to be appended with the deployment. My objective is to set up tags within an ARM template in accordance with good governance and the Cloud adoption framework. Solution ARM Template functions to the rescue. Todays salvation is called union, which you can learn more about on the actual [reference site][https://docs.

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Ignite 2019 - Web Application Gateway and Firewall

Delivering PaaS Services Privately on Azure VNets with Private Link

Ignite Session: BRK3169 Presenter: Amit Srivastava Mission Critical HTTP Applications, there are many things to consider Personalized, Micro-Services, Rich Context…. To support this MS have a number of services i the Suite - Azure Frontdoor, Application Gateway, Azure CDN, Web Application Firewall, Azure Load Balancer, and Azure Traffic Manager Azure Application Gateway Regional Gateway as a service Feature Description Platform managed Built in high availability and scalability) Layer 7 balancing URL Path, Host based, round robin, session affinity, redirection Security and SSL management WAF, SSL Offload, SSL Re-Encryption, SSL Policy Public or ILB Public, Internal or Both Flexible backends VMs, VMSS, AKS, Public IP, Cloud Services, ALB.

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Ignite 2019 - Private Link, Delivering Services Privately

Delivering PaaS Services Privately on Azure VNets with Private Link

Ignite Session: BRK3168 Presenters: Narayan Annamalai and Sumeet Mittal Private Link is currently in Public Preview is now published in all regions, with support for Storage, DLSv2, SQL DB, SQL DW and our own Service!. Additionally today (November 2019) in USWestCentral, USNorth, and USEast the ability to use with CosmosDB has been added. Your Service Create or Convert your existing services in Private Link Services VNET-VNET Connectivity Scenario, Number of VMs, linked to a Standard Load balancer.

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Guacamole Azure Appliance

Steps to deploy Guacamole on Azure.

Apache Guacamole is a free and open source web application which lets you access your dashboard from anywhere using a modern web browser. It is a clientless remote desktop gateway which only requires Guacamole installed on a server and a web browser supporting HTML5. Guacamole is the best way to keep multiple instances accessible over the internet. Once you add an instance to Guacamole, you don’t need to remember the password as it can securely store the credentials.

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CBus MQTT Bridge on Raspberry PI

Installing C-Gate on a Raspberry Pi, and adding a MQTT Bridge.

Turn back to 2007; My wife and I built our home, integrating many smart technologies, including the Clipsal C-Bus lighting system. This solution is classified as a Prosumer technology, and is designed to integrate into whole house automation systems. The C-Bus system implements however a propriatory technology, and utilizes a communication protocol which is not ‘open source’; however, accepting a licence agreement will permit access to this protocol for creating an programming interface.

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Configuring the Web Application Firewall with PowerShell.

A quick guide on how to connect and work with the Azure WAF from PowerShell.

Microsoft Azure Application Gateway is a Layer 7 application delivery controller (ADC) offered as a service in Azure. It provides load balancing, SSL termination, end-to-end SSL, URL path-based routing, and basic web application firewall (WAF) functionality. Working with the WAF, I usually build a basic configuration in the Portal before exporting the ARM JSON, which, then becomes my primary method to working on this service. Why JSON you may ask… One of my biggest gripes with the Azure Firewall solutions currently is based on thier CRUD (Create, Read, Update and Delete) interface.

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01. About Author

Damian Flynn

I define myself as an evangelist; an entrepreneur & author with an ideology rooted in business insights, technology exploration, pattern analysis and high energy. I envision, theorize and develop system architecture and strategic business platforms, soaked in storytelling and innovative technology.

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