Welcome to my blog — I’m David, co-founder of Elestio and a passionate DevOps Engineer.
This space is dedicated to exploring and promoting open-source solutions that empower developers, startups, and enterprises to build scalable, secure, and efficient systems — without vendor lock-in.
You’ll find hands-on content and curated resources on:
- 🐳 Docker & Kubernetes
- 🛠️ Open-source software stacks
- 🔁 CI/CD & automation
- ☁️ Cloud-native infrastructure
- 🔐 Networking, monitoring & security
- 🧠 DevOps culture and best practices
Whether you’re managing infrastructure for a fast-growing startup, leading DevOps initiatives in an enterprise, or building your own SaaS platform — this blog is designed for tech professionals looking for reliable, battle-tested open-source tools.
Expect tutorials, learning paths, and architectural insights to help you stay ahead in the fast-evolving world of cloud and DevOps.
Let’s Encrypt Now Issues Certificates for Public IPs As of July 2025, Let’s Encrypt now supports issuing SSL certificates for public IP addresses (both IPv4 and IPv6) — no longer limited to domain names (CNAMEs).
👉 This is a major change, especially useful for:
Self-hosted environments without DNS Testing or staging clusters Internal APIs or services running on direct IPs ✅ What This Changes No need to configure a domain name or CNAME just to enable HTTPS. Provisioning scripts and DevOps services can rely on encrypted public IPs. Let’s Encrypt still uses the ACME protocol, now with a new ipIdentifier validation. 🔐 Requirements The IP address must be public and directly reachable. You must use ACME v2 with a compatible client like certbot, acme.sh, or lego. This update makes it easier to secure ephemeral deployments, containers, and temporary VMs.
A very welcome improvement for the open-source and DevOps communities.
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