Infrastructure¶
Cluster platform components — the foundation everything else runs on.
All services in this section run on the k3s-cluster.
ArgoCD¶
addons
GitOps continuous delivery controller. Watches the master branch and automatically syncs the cluster to match the declared state in Git.
Documentation · values.sops.yaml
cert-manager¶
addons
Automates TLS certificate issuance and renewal via Let's Encrypt (DNS-01 challenge through Cloudflare).
MetalLB¶
addons
Bare-metal load balancer. Assigns external IPs to LoadBalancer services using L2 ARP announcements on the LAN.
Longhorn¶
longhorn-system
Distributed block storage for Kubernetes. Provides persistent volumes backed by cluster nodes, with built-in replication and snapshots.
Documentation · values.sops.yaml
agnhost¶
addons
OS-agnostic, multi-purpose cluster diagnostic tool deployed as a DaemonSet on every node. Primarily used for troubleshooting network connectivity between nodes, DNS resolution, and service reachability.
Reflector¶
addons
Syncs Secrets and ConfigMaps across namespaces. Used to replicate TLS certificates issued in one namespace to others that need them.
Airflow¶
addons
Workflow orchestration platform for scheduled and dependency-aware pipelines. DAGs are baked into a custom image and deployed in the addons namespace.