I’ve always admired people who have a great on-stage presence. The ability to masterfully deliver a presentation, speaking to crowds of people without a single brainfart amazes me. But no matter how good of a speaker you are, if you don’t have a good deck to present with, you’re going to have to rely on …
7 Rules for Designing a Captivating Presentation Read More »
This is the second part of High scale web server with Kubernetes. We will go over Kubernetes Horizontal Pod Autoscale and how we are using it at Dynamic Yield. Overview While serving a huge amount of requests, we can easily observe that our traffic graph looks like a sine wave with a high rate at midday and …
Here at Dynamic Yield we are serving thousands of HTTP requests per second. Moving our serving services from EC2 to EKS required some tuning to ensure we could serve efficiently without losing any request. I summarized some tips and I hope it might help others with a smooth transition. Overview Kubernetes can decide to proactively replace pods …
Couple of days ago I’ve stumbled upon interesting tool that may save quite some time for tech-savvy – gauth, a two-factor-authentication CLI tool. Wait, what is two-factor authentication? Two-factor authentication (2FA) — also known as two-step verification or multifactor authentication — adds a layer of security to your online accounts, from Amazon, Apple and Google …
gauth – Two Factor Authenticator for the CLI enthusiasts Read More »
Implement monitoring and alerts on you Amazon LIghtsail infrastructure – Free of charge!
One of the goals that my colleagues and I emphasis when implementing DevOps best-practices is seamless CI-CD process. While some AWS services are bundled with deployment strategies out-of-the-box, sometimes, we want to be agnostic to a specific “wrapping” service (Elastic Beanstalk, CodeDeploy) and run our apps on “bare” EC2 instances, thus gain more control. So …
Blue/Green deployments with AWS Auto-Scaling Group and Terraform Read More »
When it comes to Infrastructure-as-a-code, Terraform has emerged as the clear winner among other platforms, especially when comparing it to its prime competitor – good ‘ol AWS CloudFormation (Sorry Jeff… :)). This open-source project has swept the DevOps community, peaking with over 21k stars on GitHub. Its main advantage is being cloud agnostic supporting hundreds …
Terraform has been a great tool for me to maintain infrastructure as a code (IaC). In fact, 90% of our current environment infrastructure is provisioned via Terraform. Lately, I’ve stumbled upon a challenging case: How to zip AWS Lambda function on the fly without using external script? Well, apparently there’s a little trick that doe’s this …
Several days ago I’ve experienced an unpleasant situation where I was locked out of my WordPress admin page due to a bug / misconfiguration in Google Captcha (reCAPTCHA) by BestWebSof. Each time I tried to login I was denied, regardless of the captcha being marked: Pretty nasty situation, considering that I’m locked out of the admin …
How to disable WordPress plugin directly from DB Read More »
As the size of data in our world continues to grow, we will increasingly have to deal with data that that doesn’t fit into memory (a constraining factor for those using R/Python). While one solution is to buy more RAM (which is now easier than ever in cloud services like Amazon Web Services and Azure), …
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