last talk of day 3

content/day3/04_towards_great_docs.md

@@ -72,4 +72,8 @@ A talk about the backstage documentation audit and what makes a good documentati
 * Opentelemetry: Split by role (dev, ops)
 * Prometheus:
   * New user conent in intro (concept) and getting started (practice)
-  * Hierarchie includes concepts, key features and guides/tutorials
+  * Hierarchie includes concepts, key features and guides/tutorials
+
+## Q&A
+
+* Every last wednesday in the month is a cncf echnical writers meetin (cncf slack -> techdocs)

content/day3/05_buildpacks.md

@@ -0,0 +1,51 @@
+---
+title: Container Image Workflows at Scale with Buildpacks
+weight: 5
+---
+
+A talk by Broadcom and Bloomberg (both related to buildpacks.io).
+And a very full talk at that.
+
+## Baselinbe
+
+* CN Buildpack provides the spec for buildpacks with a couple of different implementations
+* Pack CLI with builder (collection of buildopacks - for example ppaketo or heroku)
+* Output images follow oci -> Just run them on docker/podman/kubernetes
+* Built images are `production application images` (small attack surface, SBOM, non-root, reproducible)
+
+## Scaling
+
+### Builds
+
+* Use in CI (Jenkins, GitHub Actions, Tekton, ...)
+* KPack: Kubernetes operator -> Builds on new changes
+
+### Multiarch support
+
+```mermaid
+flowchart LR
+    subgraph ii(OCI Image Index)
+        lamd(linux/amd64)
+        larm(linux(arm64)
+    end
+    ii->image
+    subgraph image
+        layer1
+        layer2
+        layer3
+    end
+```
+
+* Goal: Just a simple docker full that auto-detects the right architecture
+* Needed: Pack, Lifecycle, Buildpacks, Build images, builders, registry
+* Current state: There is an RFC to handle image index creation with changes to buildpack creation
+  * New folder structure for binaries
+  * Update config files to include targets
+* The user impact is minimal, because the builder abstracts everything away
+
+### Majority
+
+* kpack is slsa.dev v3 compliant (party hard)
+* 5 years of production
+* scaling up to tanzu/heroku/gcp levels
+* Multiarch is being worked on

content/day3/_index.md

@@ -4,4 +4,4 @@ title: Day 3
 weight: 3
 ---
 
-Spent most of the early day with headache.
+Spent most of the early day with headache therefor talk notes only start at noon.