<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Til on Frank Olwenda — DevOps &amp; Infrastructure Engineer</title><link>https://frankolwenda.com/tags/til/</link><description>Recent content in Til on Frank Olwenda — DevOps &amp; Infrastructure Engineer</description><generator>Hugo -- gohugo.io</generator><language>en-us</language><lastBuildDate>Sun, 23 Aug 2026 00:00:00 +0000</lastBuildDate><atom:link href="https://frankolwenda.com/tags/til/index.xml" rel="self" type="application/rss+xml"/><item><title>When GKE Ran Out of Certificates: Debugging the 15-ManagedCertificate Ceiling</title><link>https://frankolwenda.com/posts/gke-managed-certificate-limits/</link><pubDate>Sun, 23 Aug 2026 00:00:00 +0000</pubDate><guid>https://frankolwenda.com/posts/gke-managed-certificate-limits/</guid><description>I was deploying changes to a GKE cluster that hosts several client-facing services behind a single ingress, when the sync just&amp;hellip; stopped working! No obvious code change had broken anything. The ingress events told a different story than I expected:</description></item><item><title>TIL: Automating A Records and Managed Certificates on GCP with Terraform</title><link>https://frankolwenda.com/posts/til-terraform-gcp-dns-managed-certs/</link><pubDate>Wed, 29 Jul 2026 00:00:00 +0000</pubDate><guid>https://frankolwenda.com/posts/til-terraform-gcp-dns-managed-certs/</guid><description>Automating certificate creation on GCP with Terraform was the easy part. What actually slowed me down was the DNS record logic underneath it — specifically, how Terraform wants to manage a DNS record set versus how I was thinking about it.</description></item><item><title>TIL: A Records vs CNAME Flattening on Cloudflare</title><link>https://frankolwenda.com/posts/til-cloudflare-a-records-vs-cname/</link><pubDate>Tue, 21 Jul 2026 00:00:00 +0000</pubDate><guid>https://frankolwenda.com/posts/til-cloudflare-a-records-vs-cname/</guid><description>I&amp;rsquo;ve touched DNS records for years as a sysadmin without ever really sitting down and understanding why you can&amp;rsquo;t just CNAME your root domain. Setting up Cloudflare for this site finally forced the issue.</description></item></channel></rss>