Bootstrap and GitOps sources to get my cloud infrastructure set up consistently.

☁️ Cloud-as-Code (CaC™)

This repository was born out of the need to better monitor the health and uptime of an ever-growing environment of services. It contains everything required to bootstrap and manage my cloud infrastructure. It is based on the GitOps methodology and uses Argo CD as the GitOps delivery mechanism.

🔰 Overview

At the highest possible level, this repo and CaC workflow consists of two parts:

• terraform contains the stage 1 bootstrapping for the cluster nodes. This includes the partial infrastructure bootstrapping on OCI, installation of a base OS and setup of a kubernetes distribution. After completion of this stage, the cluster is ready and capable of running workloads.
• argo contains the final stage 2 GitOps cluster configuration. This includes everything running inside kubernetes in the cluster and ranges from basic system infrastructure like ingress, CCM and CSI to more user-style applications such as uptime monitoring apps. The argo installation on the cluster is not yet performed automatically, but could also be triggered from stage 1 easily. The contained argo applications are automatically installed and/or reconciled on the cluster without* user interaction. After completion of this stage, the cluster is fully set up and performs its monitoring and alerting duties.

📐 Tech Stack

Component	Purpose	Notes
terraform	Infrastructure Bootstrap
Ubuntu Server 24.04	Base Operating System
k3s	k8s Distribution / Install Mechanism	stacked HA controlplanes
ArgoCD	GitOps Automation inside the Cluster
SOPS	Secrets Management	via ksops, using age rather than pgp
tailscale	Overlay Mesh VPN

📱 Applications

🤖 System-Level

	Name	Purpose	Notes
	OCI CCM / CSI	Oracle Cloud Infrastucture k8s Automation
	system-upgrade-controller	System Upgrade Controller
	external-dns	DNS Management Automation
	cert-manager	Automated Certificate Management	Let's Encrypt via ACME DNS
	ingress-nginx	Ingress Controller
	CloudNativePG	Cloud-Native PostgreSQL Operator
	reloader	Hot-Reload for ALL Workloads

👨‍💻 User-Level

	Name	Purpose	Notes
	Gatus	Endpoint Monitor and Status Page	Monitor configuration as code