The Clever Cloud Blog

The Commit Log

All posts in Engineering

2026.05.29 Clever Cloud Bannière Blog Sōzu 2.0 EN

Sōzu 2.0 — turning a reverse proxy into a programmable edge

Sōzu is the reverse proxy that sits in front of every application running on Clever Cloud. After eighteen months of work — first the HTTP/2 multiplexer, built on our existing kawa pivot, then almost every other layer of the proxy, and finally a long run in production on the cleverapps.io load balancers — Sōzu 2.0 is out.
Engineering
K3s vs K8s EN

K3s vs K8s: What Are the Differences and Which One Should You Choose in 2026?

Kubernetes has become the standard for container orchestration. But depending on your infrastructure constraints (limited resources, edge computing, IoT, or large-scale enterprise clusters), the distribution you choose can radically change the operational experience. K3s and K8s (upstream Kubernetes) address different needs, even though both share the same CNCF-certified foundation.
Engineering Features
2026.05 SEO How Clever Cloud responds to kernel vulnerabilities EN

How Clever Cloud responds to kernel vulnerabilities

How Clever Cloud reacted to recent kernel vulnerabilities, reduced exposure, and improved its kernel deployment process.
Engineering
2026.05.19 Clever Cloud Bannière Blog K8S EN

K8S: What Is Kubernetes, How It Works, and Why It Became the Standard

K8S, short for Kubernetes, is an open source container orchestration system originally developed by Google and donated to the Cloud Native Computing Foundation (CNCF) in 2015. It automates the deployment, scaling, resilience, and networking of containerized applications across clusters of servers. In just over a decade, K8S has become the technical foundation on which a majority of modern cloud applications run.
Engineering
2026 03 17 clever cloud banniere blog clever cloud controle lannonce de ses prefixes ip en

Clever Cloud Takes Control of Its IP Prefix Announcements

Since January 22, 2025, Clever Cloud has been announcing its own IP prefixes on the Internet in our Paris region. We now manage this critical part of our network infrastructure internally, rather than delegating it to a third party.
Engineering
Clever Cloud Bannière Blog CKE

CKE in public beta: managed, sovereign, and properly integrated Kubernetes

Clever Cloud was founded in 2010. At that point, Docker did not exist, and Kubernetes even less. The problem, however, was already there: running our first customers' applications reliably, in isolation, and predictably.
Company Engineering Features
Webinaire CCxCycloid

Cloud modernisation: how to align governance and operations without adding complexity

European organisations are managing increasingly heterogeneous environments: legacy applications, cloud-native services, multi-cloud setups and regulatory constraints are accumulating within information systems rarely designed to handle such diversity.
Engineering Event Guests
Clever Cloud CKE Devoxx

Clever Cloud launches Clever Kubernetes Engine (CKE) in public beta on April 27, 2026

Previewed at Devoxx starting April 22, CKE is the culmination of two years of R&D built around a complete reimplementation of Kubernetes.
Company Engineering Press
2026 03 18 clever cloud banniere blog paas secteur public eng 2 2

OpenTofu: the open-source Terraform fork — natively supported on Clever Cloud

In August 2023, HashiCorp changed Terraform's license. A few weeks later, OpenTofu was born under the Linux Foundation. Here's what it means — and how to use it with the Clever Cloud provider.
Engineering
2026 03 18 clever cloud banniere blog paas secteur public eng

When choose a PaaS for a public sector project

Public services are engaged in an ongoing digital transformation, driven by increasing user expectations, service continuity requirements, and growing security needs.
Company Engineering Features
2026 02 25 clever cloud banniere blog vinext en

How We Deployed a Vinext Application in Minutes on Clever Cloud with AI

Cloudflare has just announced Vinext, a drop-in replacement for Next.js built on Vite. The project is vibecoded, experimental, but the promise is compelling: builds up to 4x faster, bundles 57% lighter, and 94% coverage of the Next.js API. We wanted to see how easy it would be to deploy it on Clever Cloud.
Engineering
2026 02 16 clever cloud banniere blog keycloak manage fr 2

New IAM feature: what our Managed Keycloak offers today

Since its launch, Keycloak as a Service has evolved significantly to meet the concrete needs of businesses and the requirements of operating IAM at scale.
Engineering
2026 02 10 clever cloud banniere blog elasticsearch observabilite en 1

Elasticsearch Observability: logs, metrics, and traces explained

Modern architectures generate ever-growing volumes of data. Microservices, APIs, cloud workloads, and serverless environments multiply potential failure points. In this context, understanding what is really happening in production has become a central challenge.
Engineering
2026 02 10 clever cloud banniere blog elk stack en 1

ELK Stack: what it is used for and how to use it for observability

Understanding what is really happening inside a modern application has become increasingly complex. Microservices, cloud environments, and the growing number of physical or virtual servers all contribute to an explosion of technical signals. This distribution makes so-called “traditional” log analysis—based on directly connecting to a single machine—hard to sustain at scale.
Engineering
2026 02 11 clever cloud banniere blog iam en

Identity Access Management: pillar of security and compliance

Identity Access Management (IAM) is now one of the foundations of information system security and governance.…

Engineering
2025 12 02 clever cloud banniere blog variables de deploiement en 1

Deployment variables got more consistent

When deploying your applications to Clever Cloud, you can configure the build and start of your application or secondary services using Environment Variables.
Engineering
2026 02 19 clever cloud banniere blog top meilleurs iam open source en

8 open source IAM solutions to structure access management

Identity and Access Management (IAM) defines how an organisation controls access to applications, APIs and data.
Engineering
2025 11 07 clever cloud banniere blog wordpress  keycloak en

Manage your WordPress identities with Keycloak

Managing logins to your website can be a complex task. Fortunately, tools like Keycloak, an open-source Identity and Access Management (IAM) solution, can make it much easier to handle authentication and authorization for your application.
Engineering
2025 10 01 clever cloud banniere blog serveurs mcp en

Building Smarter MCP Servers — From Theory to Practice

A few months ago, I published an article introducing MCP servers. Since then, I’ve…

Engineering
2025 06 23 clever cloud banniere blog migration cloud en 3 1

Why we (finally) built our own managed Kubernetes

At Clever Cloud, we held off for a long time before offering a managed Kubernetes service. Not out of technological reluctance, Kubernetes is a great tool… but it was never designed to make developers’ lives easier.
Company Engineering