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CD/CI deployment manifests and configurations for basicstack.de cluster
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CTO Agent 550d1276f7 feat(monitoring): Prometheus backup-freshness + restic alerts (DEV-490) 
- New PrometheusRule apps/monitoring/backup-restic-alerts.yaml with
  seven warning-level rules:
    * BackupLokiStale / BackupGrafanaStale / BackupK8sResourcesStale
      -> time() - backup_<kind>_timestamp_seconds > 28h
    * BackupLokiCheckFailed / BackupGrafanaCheckFailed /
      BackupK8sResourcesCheckFailed -> backup_<kind>_check_status != 0
    * ResticRepoOversize -> restic_repo_size_bytes > 20 GiB (per-repo)
- Emit restic_repo_size_bytes{repo="<kind>"} from all three restic
  CronJobs (loki, grafana, k8s-resources) via `restic stats --json
  --mode raw-data` so ResticRepoOversize has data to match once the
  textfile-collector scrape path is wired.
- Companion promtool unit test backup-restic-alerts.test.yaml with
  five scenarios (fresh/stale, check pass/fail, oversize) -- verified
  locally with promtool 2.53.1: SUCCESS.
- README.md: document the three restic CronJobs, the shared
  SealedSecret keys (access-key/secret-key/endpoint/bucket/
  restic-password), the emitted textfile metrics, and the alert list.

Co-Authored-By: Paperclip <noreply@paperclip.ing>
2026-08-16 16:07:55 +00:00
apps feat(monitoring): Prometheus backup-freshness + restic alerts (DEV-490) 2026-08-16 16:07:55 +00:00
docs docs(monitoring): add restic restore runbook + first drill log (DEV-488) 2026-08-16 15:47:45 +00:00
infrastructure Add weekly rolling OS-update procedure for k3s nodes (DEV-462) 2026-08-09 15:55:39 +00:00
.gitignore Convert all secrets to SealedSecrets for enhanced security 2026-07-01 18:38:27 +00:00
add-user-andreas.ldif OpenCloud: Use native bash substitution in config file 2026-07-05 14:03:49 +00:00
DEV-349-progress.md Consolidate Forgejo backup into forgejo namespace 2026-07-26 09:35:31 +00:00
README.md Add comprehensive Argo CD documentation 2026-07-12 10:04:51 +00:00

README.md

stack.basicstack.de

CD/CI deployment manifests and configurations for the basicstack.de Kubernetes cluster.

Repository Structure

stack.basicstack.de/
├── apps/                    # Application deployments
│   ├── stalwart/           # Stalwart mail server (example)
│   └── forgejo/            # Forgejo Git service (placeholder)
├── infrastructure/          # Infrastructure-level configurations
│   ├── networking/         # Network policies, ingress, DNS
│   └── monitoring/         # Monitoring, logging, observability
└── docs/                   # Documentation and guides

Purpose

This repository serves as the central source of truth for all deployment configurations targeting the basicstack.de Kubernetes cluster. It follows GitOps principles where infrastructure and application state is declaratively defined and version-controlled.

Directory Details

apps/

Contains deployment configurations for individual applications and services running on the cluster. Each application should have its own subdirectory with:

  • Kubernetes manifests (Deployments, StatefulSets, Services, etc.)
  • Helm values files
  • Configuration files
  • Application-specific documentation

Example: The stalwart/ directory contains the complete deployment configuration for the Stalwart mail server, including multiple deployment variants, monitoring setup, and operational guides.

infrastructure/

Contains cluster-wide infrastructure configurations:

  • networking/: Ingress controllers, network policies, DNS configurations, load balancers
  • monitoring/: Prometheus, Grafana, logging infrastructure, observability tools

docs/

General documentation including:

  • Deployment procedures
  • Cluster architecture
  • Troubleshooting guides
  • Best practices

GitOps with Argo CD

This repository is managed via Argo CD, the GitOps deployment platform for the cluster.

All changes pushed to the main branch are automatically synchronized to the cluster. Applications are defined in apps/app-*.yaml files and reference subdirectories for their manifests.

For details on managing applications, repository credentials, troubleshooting, and emergency procedures, see the Argo CD documentation.

Getting Started

  1. Clone this repository
  2. Review the example Stalwart deployment in apps/stalwart/
  3. Follow the pattern for new application deployments
  4. Ensure all manifests are tested before committing
  5. Argo CD will automatically sync changes to the cluster (or use manual sync for critical changes)

Contributing

All changes should be:

  1. Committed with clear, descriptive messages
  2. Tested in a development environment when possible
  3. Documented appropriately
  4. Reviewed before deployment to production

Cluster Information

  • Cluster: basicstack.de
  • Platform: K3s on Hetzner Cloud
  • Namespace Strategy: One namespace per application (recommended)
  • Ingress: Traefik (default K3s ingress controller)