SRE

Steampipe is an open source tool to instantly query your cloud services (e.g. AWS, Azure, GCP and more) with SQL. No DB required.

OpsLevel’s mission is to make it simpler for companies to ship and operate high-quality software through service ownership and developer portals.

The code is a liability, not an asset. The debt begins for a team the moment the first line of code is written. The code is written when…

Recently there has been substantial discussion around the downsides of service oriented architectures and microservice architectures in particular. While only a few years ago, many people readily adopted microservice architectures due to the numerous benefits they provide such as flexibility in the form of independent deployments, clear ownership, improvements in system stability, and better separation of concerns, in recent years people have begun to decry microservices for their tendency to greatly increase complexity, sometimes making even trivial features difficult to build.

small Linux VM, ready to run containers, for macOS on ARM - GitHub - apinske/virt: small Linux VM, ready to run containers, for macOS on ARM

The biggest mistake Kubernetes admins make with health probes is configuring the probes the same way for all apps.

What happens when your distributed service has challenges with stampeding herds of internal requests? How do you prevent cascading failures between internal services? How might you re-architect your workflows when naive horizontal or vertical scaling reaches their respective limits? These were the challenges facing Slack engineers during their day-to-day development workflows in 2020. Multiple internal …

Every so often, an employer asks me to help make a dashboard. Usually, this causes technologists to roll their eyes. They have a vision of a CEO grandly staring at a giant projection screen, watchi…

Introduction Kubernetes provides a high-level API and a set of components that hides almost all of the intricate and—to some of us—interesting details of what happens at the systems level. Application developers are not required to have knowledge of the machines' IP tables, cgroups, namespaces, seccomp, or, nowadays, even the container runtime that their application runs on top of. But underneath, Kubernetes and the technologies upon which it relies (for example, the container runtime) heavily leverage core Linux functionalities.

Get eBPF programs running from the cloud to the kernel in 1 line of bash - solo-io/bumblebee: Get eBPF programs running from the cloud to the kernel in 1 line of bash

eBPF is a piece of advanced Linux functionality that has been gradually put to use in Kubernetes over the last few years. In this guide, you will walk the reader through some use-cases for eBPF in Kubernetes, such as kernel-level network monitoring.

Monitoring microservices effectively still can be a challenge, as many of the traditional performance monitoring techniques are ill-suited for providing the required granularity of system performance. Now a former Google and Weave engineer has developed an approach, called the RED Method, that seems to be gaining favor with administrators. RED “encourages you to come to […]

Modern systems can emit thousands or millions of metrics, and modern monitoring tools can collect them all. Faced with such an abundance of data, it can be difficult to know where to start looking when trying to diagnose a problem. And when you’re not ...

This post describes how to see TCP connection establishment and termination as packets using tcpdump.

Diagrams but only HTTP. When dealing with web performance monitoring & optimization, it's important to learn the fundamentals of HTTP protocol. Discover everything you need to know.

3 Things You Should Know About HTTPS, SSL or TLS Traffic with Wireshark If you analyze trace files captured on your network as a way to troubleshoot performance

Learn how the Four Keys open source project lets you gauge your DevOps performance according to DORA metrics.

Over the last 4.5 years, Kubernetes has dramatically improved in terms of usability and it’s now easier than ever to get started with…

Open Service Level Objective (SLO) Specification. Designed to make SLOs ergonomic to modern developer Git workflow.

Andrew takes Marin through GitLab.com's SLO framework.Some topics covered include:* Symptom-based Alerting vs. Caused-based Alerting, RED Method Monitoring, ...