My team build a new Closed Build Environment for building Release Packages on Google Cloud Platform(gcp) with Google Kubernetes Engine (GKE). I like to take you on a small journey through a variety of topics we came across (open for change): How we bootstrap and how we use ArgoCD Autoscaling to 100 Build nodes for building Why we are using Prometheus-Operator SRE or how we maintain our stack Product aspect Base Image building & scanning Network setup with Shared VPC Google Cloud Platform IAM Permissions vs. RBAC Specific GKE Features like Workload Identity And others Simple real live example how my team is doing it. Looking forward to inspire and to get feedback from others!