Let's discuss logging - unstructured, structured and canonical log lines - what they are and what value they bring to your production systems.

How Redis can be used as a primary database for complex applications that need to store data in multiple formats?

One of the main pieces of advice about Service Level Objectives (SLOs) is that they should focus on the user experience. Invariably, this leads to people further down the stack asking, “But how do I make my work fit the users?”—to which the answer is to redefine what we mean by “user.” In the end, a user is anyone who uses whatever it is you’re measuring.

Terraform HTTP Backend implementation that uses Git repository as storage

TFBuddy allows Terraform Cloud users to get apply-before-merge workflows in their Pull Requests.

Metal3 (pronounced “metal cubed”) is an open-source project that provides a set of tools for managing bare-metal infrastructure using Kubernetes.

Kruize Autotune is an Autonomous Performance Tuning Tool for Kubernetes. Autotune accepts a user provided "slo" goal to optimize application performance. It uses Prometheus to identify "layers" of an application that it is monitoring and matches tunables from those layers to the user provided slo. It then runs experiments with the help of a hyperparameter optimization framework to arrive at the most optimal values for the identified set of tunables to get a better result for the user provided slo.

Autotune can take an arbitrarily large set of tunables and run experiments to continually optimize the user provided slo in incremental steps. For this reason, it does not necessarily have a "best" value for a set of tunables, only a "better" one than what is currently deployed.

Kubernetes' nodes don't necessarily need their own public IP addresses to communicate. However, there are certain situations where it's beneficial for nodes in a node pool to have their own unique public IP addresses.

For instance, in gaming applications, a console might need to establish a direct connection with a cloud virtual machine to reduce the number of hops.

Similarly, if you have multiple agents running on Kubernetes that need a direct server connection, and the server needs to whitelist all agent IPs, having dedicated public IPs can be useful. These scenarios, among others, can be handled on a cloud-managed Kubernetes cluster using Node Public IP.

KubeIP is a utility that assigns a static public IP to each node it manages. The IP is allocated to the node's primary network interface, chosen from a pool of reserved static IPs using platform-supported filtering and ordering.

If there are no static public IPs left, KubeIP will hold on until one becomes available. When a node is removed, KubeIP releases the static public IP back into the pool of reserved static IPs.

A mysterious CPU spike in ClickHouse Cloud on GCP led to months of debugging, revealing a deeper issue within the Linux kernel’s memory management. What started as random performance degradation turned into a deep dive into kernel internals, where engineer Sergei Trifonov uncovered a hidden livelock. His journey through eBPF tracing, perf analysis, and a reproducible test case ultimately led to a surprising fix - only for another kernel bug to surface right after. Curious, read on…

pgRouting extends the PostGIS/PostgreSQL geospatial database to provide geospatial routing and other network analysis functionality.

rsql is a command line SQL interface for data. rsql is a modern, feature-rich, and user-friendly client, that has been designed to be easy to use, and to provide a consistent experience across all supported data sources.

Install and run a PostgreSQL database locally on Linux, MacOS or Windows. PostgreSQL can be bundled with your application, or downloaded on demand.

Wait4X is a powerful, zero-dependency tool that waits for services to be ready before continuing.

pg_mooncake is a Postgres extension that adds columnar storage and vectorized execution (DuckDB) for fast analytics within Postgres. Postgres + pg_mooncake ranks among the top 10 fastest in ClickBench.

In this article, I’ll cover a few important tools that can help you keep your Terraform code in good shape. I’ll cover areas such as static analysis, documentation, security checks and ways to improve your workflow. These tools can alert you early on to potential problems, help you adhere to best practices, stimulate teamwork and reduce operational risks.