DevOps & System Administration

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DevOps & System Admin.

How TOTP Systems Like Google Authenticator Work

A history of the HOTP one-time password method, how the current TOTP system works, and a few risks inherent to the TOTP approach.

DevOps & System Admin.

Using Docker & Kubernetes Together to Design & Maintain Your Infrastructure

The real magic happens when you have Kubernetes schedule and coordinate your Docker containers. This will give you higher availability and more resiliency.

DevOps & System Admin.

Implementing Google Single Sign-On with an Apache Server

How to implement Google Single Sign-On for your internal websites or mobile apps using an Apache server and Google’s OpenID Connect 1.0.

DevOps & System Admin.

Why & How We’ve Starting Using RailsAdmin Internally

For smaller, internal apps, Rails Admin is a great choice. Compared with designing and developing a custom app from scratch, it saves a lot of time.

DevOps & System Admin.

Four Considerations when Managing an AWS VPC

An AWS Virtual Private Cloud (VPC) provides valuable protection if you know the limitations and have the right set of tools to manage it effectively.

DevOps & System Admin.

LocalStack + Terraform + CircleCI for Lambda without AWS

Can you provision, develop, and test your lambda functions without access to AWS? We're doing it by combining LocalStack, Terraform, and CircleCI.

DevOps & System Admin.

Updating AWS Lambda Function Code when Local Files Change

How to use "make" to update AWS Lambda layer and AWS Lambda function configuration and code whenever local files change.

DevOps & System Admin.

Docker for Mac: Overcoming Slow Mounted Volumes with Visual Studio Code

How I'm hosting a development environment, including source code, inside a Docker container and using Visual Studio code to attach and edit the code.

DevOps & System Admin.

Improve Your Cloud Infrastructure with entr, Terraform, and tflint

Don’t let long feedback loops slow down your DevOps team. Iterate faster with cheap, lightweight automation using Entr.

DevOps & System Admin.

CircleCI – Running Parallel iOS Test Jobs with Workflows

Setting up CI for iOS apps is difficult, but with a little help from Workflows on CircleCI you can easily run multiple iOS test jobs in parallel.

DevOps & System Admin.

Five Ways to Spice Up Your Bash Command Prompt

With these tools, you'll be able to delve deeper and customize your Bash prompt to just how you like it.

DevOps & System Admin.

Docker Volumes: Why, When, and Which Ones?

Docker volumes are used to persist data from within a Docker container. I'll explain when and why to use host, anonymous, and named volumes in Docker.

DevOps & System Admin.

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