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feature/multi-cloud (#14)

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Co-authored-by: Danijel Simeunovic <danijel.simeunovic@fortedigital.com>
Reviewed-on: #14
This commit was merged in pull request #14.
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gitea_admin
2026-04-24 08:48:53 +00:00
parent 65598c9297
commit 8505481291
102 changed files with 1715 additions and 147 deletions
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docs/GITOPS-ARCHITECTURE.md
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@@ -12,11 +12,11 @@
## Overview
This Kubernetes cluster uses a **GitOps approach** powered by **ArgoCD**, where Git repositories serve as the single source of truth for both infrastructure and application deployments. The cluster is running on **UpCloud Managed Kubernetes** but is designed to be cloud-agnostic.
This Kubernetes cluster uses a **GitOps approach** powered by **ArgoCD**, where Git repositories serve as the single source of truth for both infrastructure and application deployments. The cluster setup is **cloud-agnostic**, with ready-to-use configurations for **UpCloud**, **AWS EKS**, **Azure AKS**, and **GCP GKE**.
### Key Characteristics
- **Environment**: Production (internal use only)
- **Cluster Type**: Multi-cluster (upc-dev, upc-prod) via Kustomize overlays
- **Cluster Type**: Multi-cloud, multi-cluster via Kustomize overlays (UpCloud, AWS, Azure, GCP)
- **GitOps Tool**: ArgoCD
- **Deployment Pattern**: App-of-Apps
- **Secret Management**: Sealed Secrets (kubeseal)
@@ -63,7 +63,7 @@ This Kubernetes cluster uses a **GitOps approach** powered by **ArgoCD**, where
▼
┌────────────────────────────────┐
│ Kubernetes Clusters │
│ (UpCloud: upc-dev, upc-prod) │
│ (UpCloud, AWS, Azure, GCP) │
│ │
│ ┌──────────────────────────┐ │
│ │ ArgoCD │ │
@@ -131,26 +131,22 @@ launchpad/
│ │ ├── renovate.yaml
│ │ ├── ... # All other Application manifests
│ │ └── secrets.yaml
│ ├── overlays/ # Per-cluster overrides
│ ├── overlays/ # Per-cluster Kustomize overrides
│ │ ├── upc-dev/ # UpCloud Dev (uses base as-is)
│ │ └── upc-prod/ # UpCloud Prod (patches value paths)
│ │ ├── upc-prod/ # UpCloud Prod (patches value paths)
│ │ ├── eks-dev/ # AWS EKS Dev
│ │ ├── eks-prod/ # AWS EKS Prod
│ │ ├── aks-dev/ # Azure AKS Dev
│ │ ├── aks-prod/ # Azure AKS Prod
│ │ ├── gke-dev/ # GCP GKE Dev
│ │ └── gke-prod/ # GCP GKE Prod
│ ├── dashboards/ # Grafana dashboard ConfigMaps
│ └── values/ # Helm value overrides for infra
│ ├── base/ # Shared values (all clusters)
│ │ ├── traefik-values.yaml
│ │ ├── keycloak-values.yaml
│ │ ├── grafana-values.yaml
│ │ ├── prometheus-values.yaml
│ │ ├── gitea-values.yaml
│ │ └── ...
│ ├── upc-dev/ # upc-dev cluster-specific values
│ │ ├── traefik-values.yaml
│ │ ├── keycloak-values.yaml
│ │ └── grafana-values.yaml
│ └── upc-prod/ # upc-prod cluster-specific values
│ ├── traefik-values.yaml
│ ├── keycloak-values.yaml
│ └── grafana-values.yaml
│ ├── base/ # Cloud-agnostic shared values
│ ├── upc-{dev,prod}/ # UpCloud: storage class, LB, pricing
│ ├── aws-{dev,prod}/ # AWS: gp3, NLB, CUR pricing
│ ├── aks-{dev,prod}/ # Azure: managed-csi-premium, Standard LB
│ └── gcp-{dev,prod}/ # GCP: premium-rwo, L4 LB
│
├── apps/ # Business Application ArgoCD manifests (Kustomize)
│ ├── base/ # Base app manifests
@@ -287,7 +283,7 @@ app-repository/
### The App-of-Apps Pattern
```
_app-of-apps-{upc-dev,upc-prod}.yaml (Root, per cluster)
_app-of-apps-{cluster}.yaml (Root, per cluster — e.g. upc-dev, eks-prod, gke-dev)
│
├── infrastructure-apps (manages infra/)
│ ├── cluster-resources-application
@@ -377,6 +373,15 @@ patches:
value: $values/infra/values/upc-prod/traefik-values.yaml
```
Cloud-specific values (storage classes, load balancer annotations, cost model) are isolated in per-cluster value files. Base values are fully cloud-agnostic:
| Cloud | Storage Class | Load Balancer | OpenCost Provider |
|-------|--------------|---------------|-------------------|
| **UpCloud** | `upcloud-block-storage-maxiops` | UpCloud LB (ProxyProtocol v2) | Custom pricing |
| **AWS EKS** | `gp3` (EBS CSI) | NLB (ProxyProtocol v2) | AWS CUR |
| **Azure AKS** | `managed-csi-premium` | Standard LB (`externalTrafficPolicy: Local`) | Azure Billing API |
| **GCP GKE** | `premium-rwo` (PD CSI) | L4 passthrough NLB | GCP Cloud Billing |
**Benefits**:
- Single source of truth for Application definitions
- Cluster-specific values isolated per overlay
@@ -658,6 +663,6 @@ Notifications include:
---
**Last Updated**: 2026-03-16
**Last Updated**: 2026-04-22
**Maintained By**: Platform Team
**Questions?**: Contact #platform-support on Slack