onedr0p / home-ops

My Home Operations Repository _... managed with Flux, Renovate, and GitHub Actions_                                        --- Overview This is a mono repository for my home infrastructure and Kubernetes cluster. I try to adhere to Infrastructure as Code (IaC) and GitOps practices using tools like Ansible, Terraform, Kubernetes, Flux, Renovate, and GitHub Actions. --- Kubernetes My Kubernetes cluster is deployed with Talos. This is a semi-hyper-converged cluster, workloads and block storage are sharing the same available resources on my nodes while I have a separate server with ZFS for NFS/SMB shares, bulk file storage and backups. There is a template over at onedr0p/cluster-template if you want to try and follow along with some of the practices I use here. Core Components • **Networking & Service Mesh**: cilium provides eBPF-based networking, while istio powers service-to-service communication with L7 proxying and traffic management. cloudflared secures ingress traffic via Cloudflare, and external-dns keeps DNS records in sync automatically. • **Security & Secrets**: cert-manager automates SSL/TLS certificate management. For secrets, I use external-secrets with 1Password Connect to inject secrets into Kubernetes. • **Storage & Data Protection**: rook provides distributed storage for persistent volumes, with volsync handling backups and restores. spegel improves reliability by running a stateless, cluster-local OCI image mirror. • **Automation & CI/CD**: actions-runner-controller runs self-hosted GitHub Actions runners directly in the cluster for continuous integration workflows. GitOps Flux watches the clusters in my kubernetes folder (see Directories below) and makes the changes to my clusters based on the state of my Git repository. The way Flux works for me here is it will recursively search the folder until it finds the most top level per directory and then apply all the resources listed in it. That aforementioned will generally only have a namespace resource and one or many Flux kustomizations ( ). Under the control of those Flux kustomizations there will be a or other resources related to the application which will be applied. Renovate watches my **entire** repository looking for dependency updates, when they are found a PR is automatically created. When some PRs are merged Flux applies the changes to my cluster. Directories This Git repository contains the following directories under Kubernetes. Flux Workflow This is a high-level look how Flux deploys my applications with dependencies. In most cases a will depend on other 's, in other cases a will depend on other 's, and in rare situations an app can depend on a and a . The example below shows that won't be deployed or upgrade until the Helm release is installed or in a healthy state. Networking Click here to see my high-level network diagram --- Cloud Dependencies While most of my infrastructure and workloads are self-hosted I do rely upon the cloud for certain key parts of my setup. This saves me from having to worry about three things. (1) Dealing with chicken/egg scenarios, (2) services I critically need whether my cluster is online or not and (3) The "hit by a bus factor" - what happens to critical apps (e.g. Email, Password Manager, Photos) that my family relies on when I no longer around. Alternative solutions to the first two of these problems would be to host a Kubernetes cluster in the cloud and deploy applications like HCVault, Vaultwarden, ntfy, and Gatus; however, maintaining another cluster and monitoring another group of workloads would be more work and probably be more or equal out to the same costs as described below. | Service | Use | Cost | |-------------------------------------------|----------------------------------------------------------------|----------------| | 1Password | Secrets with External Secrets | ~$65/yr | | Cloudflare | Domain and S3 | ~$50/yr | | GCP | Voice interactions with Home Assistant over Google Assistant | Free | | GitHub | Hosting this repository and continuous integration/deployments | Free | | Migadu | Email hosting | ~$20/yr | | Pushover | Kubernetes Alerts and application notifications | $5 OTP | | | | Total: ~$10/mo | --- DNS In my cluster there are two instances of ExternalDNS running. One for syncing private DNS records to my using ExternalDNS webhook provider for UniFi, while another instance syncs public DNS to . This setup is managed by creating ingresses with two specific classes: for private DNS and for public DNS. The instances then syncs the DNS records to their respective platforms accordingly. --- Hardware Click here to see my server rack | Device | Num | OS Disk Size | Data Disk Size | Ram | OS | Function | |-----------------------------|-----|-------------------|---------------------------------|-------|---------------|--------------------------| | ASUS NUC 14 Pro CU 5 125H | 3 | 1TB SSD | 1TB (local) / 800GB (rook-ceph) | 96GB | Talos | Kubernetes | | 45Drives HL15 | 1 | 1TB NVMe (mirror) | 12x22TB ZFS (mirrored vdevs) | 256GB | TrueNAS SCALE | NFS + Backup Server | | JetKVM | 3 | - | - | - | - | KVM for Kubernetes Nodes | | UniFi UDM Pro Max | 1 | - | 2x4TB HDD | - | - | Router & NVR | | UniFi USW Enterprise 24 PoE | 1 | - | - | - | - | 2.5Gb PoE+ Switch | | UniFi US XG 16 | 1 | - | - | - | - | 10Gb SFP+ Switch | | UniFi USP PDU Pro | 1 | - | - | - | - | PDU | | APC SMT1500RM2U | 1 | - | - | - | - | UPS | --- Stargazers --- Gratitude and Thanks Thanks to all the people who donate their time to the Home Operations Discord community. Be sure to check out kubesearch.dev for ideas on how to deploy applications or get ideas on what you could deploy. ---