add happy hour 018: slides & recording

Author: truib

docs/training-events/2025/EESSI-happyhour-2025-018-EESSI-K8s-poc-demo.pdf

@@ -4,6 +4,17 @@ Find slides, and video recordings of earlier sessions below.
 
 ---
 
+# Topic series: Expanding the reach of EESSI: K8s and Android
+
+### Monday 15 December 2025
+
+**Outline:** EESSI in Kubernetes: The CVMFS-CSI plugin
+([Slides (PDF)](EESSI-happyhour-2025-018-EESSI-K8s-poc-demo.pdf), [Recording (YouTube)](https://youtu.be/onUI4dgg3n8))
+
+<iframe width="560" height="315" src="https://www.youtube.com/embed/onUI4dgg3n8?si=mFL0AfHTS5j8EQpo" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
+
+---
+
 # Topic series: Scaling Software Builds Across Architectures with Automation
 
 ### Monday 08 December 2025

docs/training-events/2025/happy-hours-previous-sessions.md

@@ -31,17 +31,17 @@ If you haven't joined the EESSI Slack yet, [click here to join]({{ config.extra.
 
 ---
 
-### 💡 **Next Session**: How It Works: Event Triggers, Build Clusters, and Automated Packaging at Scale
-### Topic Series: Scaling Software Builds Across Architectures with Automation
+### 💡 **Next Session**: EESSI-Christmas: Your wishes for 2026
+### Topic Series: EESSI Roadmap 2026
 🗓️ Schedule
-#### Monday 15 December 2025, 14:00-15:00 CE(S)T
+#### Monday 22 December 2025, 14:00-15:00 CE(S)T
 
 ---
 
-### Upcoming sessions in the topic series: Expanding the reach of EESSI: K8s and Android
+### Upcoming sessions in the topic series: EESSI Roadmap 2026
 ###### Outline
 
-- 15 December 2025 - EESSI in Kubernetes: the CVMFS-CSI plugin
+- 12 January 2026 - EESSI: What's next in 2026?
 
 ---
 
@@ -51,6 +51,12 @@ If you haven't joined the EESSI Slack yet, [click here to join]({{ config.extra.
 
 See the full Recordings, slides, and materials here: [Previous Sessions & Videos](./happy-hours-previous-sessions.md)
 
+*Topic series: Expanding the reach of EESSI: K8s and Android*
+
+- 15 December 2025 [EESSI in Kubernetes: The CVMFS-CSI plugin](https://youtu.be/onUI4dgg3n8)
+
+---
+
 *Topic series: Scaling Software Builds Across Architectures with Automation*
 
 - 08 December 2025 [How It Works: Event Triggers, Build Clusters, and Automated Packaging at Scale](https://youtu.be/IkKdVm2JmAU)