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  • API Conversations and Why They're Important

    calendar Jun 25, 2023 · 6 min read · Network Automation Programmability  ·
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    API Conversations and Why They're Important

    API Interactions are designed to be easy Believe it or not, the IT infrastructure industry is trying to make things easier by building API access out. Programmatic interfaces are a new mental model competing for brain-space with GUI and CLI implementations; we need to play to its strengths: Parsing output from a …


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  • Automate Cisco IOS/IOS-XE documentation with Ansible (with examples)

    calendar Mar 26, 2023 · 9 min read · Programmability Diagrams Ansible  ·
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    Automate Cisco IOS/IOS-XE documentation with Ansible (with examples)

    Note: This post integrates several automation tools at once. My objective is to provide some well-documented, concrete examples of executable Ansible Playbooks, D2 Diagrams, and best practice to illustrate ways to make good documentation easy. Note: All code examples in this blog post are structured in a format to be …


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  • Document Networks as Code with D2!

    calendar Mar 18, 2023 · 4 min read · Programmability Diagrams  ·
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    Document Networks as Code with D2!

    Let's do something a bit more stereotypical when we talk about IT diagramming - building Network Diagrams with D2. D2's OSS layout engines (Dagre, ELK) are both centered around hierarchical layouts, which was a bit part of why we needed to hack D2 to get vSphere diagrams to draw. Here, it quickly becomes our best …


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  • Document vSphere as Code with D2!

    calendar Mar 11, 2023 · 7 min read · Programmability Diagrams  ·
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    Document vSphere as Code with D2!

    In a previous post we tested methods to illustrate documentation as-code with Terrastruct's D2 language. Documentation is good for infrastructure engineers in a variety of scenarios practically speaking, but we often forget the value of building consumer confidence. This may vary based on culture! My experiences are …


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  • Diagram as Code with D2!

    calendar Mar 4, 2023 · 5 min read · Programmability Diagrams  ·
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    Diagram as Code with D2!

    Documentation is always important, but always takes too much time Ever had an issue where a new installation is completed, but there's just no time to update the ol' Visio diagrams? Manually composed diagrams always possess a certain art to them, but the hours per unit of documentation isn't always worthwhile …


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  • Enable ToFU (Trust on First Use) with OpenSSH

    calendar Feb 11, 2023 · 2 min read · Linux FOSS/Linux Programmability Ansible Information Security  ·
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    Ansible is a fantastic tool for Linux-based and NOS-based automation. Have you seen this error before? 1"changed": false, "msg": "Failed to connect to the host via ssh: Host key verification failed." When you use Ansible with SSH transport (as opposed to an API), you rely on the SSH key trust …


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  • Why Automate? VM Deployment with vSphere's REST API

    calendar Jan 5, 2023 · 7 min read · Linux VMWare Home Lab Python FOSS/Linux Jenkins Continuous Delivery JSON Programmability Jinja  ·
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    Why Automate? VM Deployment with vSphere's REST API

    VMware introduced RESTful APIs with their vSphere 7.0 release train; migrating from the old MOB APIs is a welcome choice. REST clients provide a powerful tool for automating processes, but it's important to embody reliable practices when interacting with infrastructure. The neat thing about published and documented …


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  • Why Automate? Programmability is about solving new problems without fear of failure.

    calendar Dec 3, 2022 · 6 min read · Programmability Design Patterns  ·
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    Have you ever heard someone say "I'm not a coder" at work? The IT industry is changing again. Our humble origins began as polymaths moved from adjacent industries and created a new world from scratch. The pioneering phase led to unique opportunities, creating our transport protocols, programming languages, …


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  • Different Methods to carry 802.1q tags with VMware vDS and NSX-T

    calendar May 6, 2022 · 3 min read · VMWare Home Lab NFV Datacenter Networking NSX-T Programmability Design Patterns Network Automation  ·
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    VMware's vDS is a bit of a misnomer In a previous post, I covered the concept of transitivity in networking - but in Layer 2 (Ethernet) land, transitivity is critically important to understanding how VMware's Virtual Distributed Switch (vDS) works. The statement "VMware's Virtual Distributed Switch is not a …


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  • Network Experiments with VMware NSX-T and Cisco Modeling Labs

    calendar Apr 29, 2022 · 4 min read · VMWare Home Lab Datacenter Networking Routing & Switching Studies Programmability Network Automation  ·
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    Cisco Modeling Labs (CML) has turned out to be a great tool for deploying virtual network resources, but the "only Cisco VNFs" limitation is a bit much. Let's use this opportunity to really take advantage of the capabilities that NSX-T has for virtual network labs! Overview For the purpose of lab …


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ENGYAK.co

A blog about IT

Disclaimer

The opinions expressed on this site are my own personal opinions and do not represent my employer’s view in any way.

Recent Posts

  • Automate DNS Zone Generation and Deployment with Ansible and Netbox
  • VM Deployment Pipelines with Proxmox
  • Starting from scratch with Netbox IPAM
  • Manage Linux patching with Ansible and Netbox!
  • Abstracting DNS Record Management with Ansible and Jinja 2
  • Build and Consume Alpine Linux vSphere Images
  • Apollo 13's "Failure is not an option", and how non-engineers misinterpret it
  • Internet Load Balancing with pfSense

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