Typhoon is a minimal and free Kubernetes distribution.
- Minimal, stable base Kubernetes distribution
- Declarative infrastructure and configuration
- Free (freedom and cost) and privacy-respecting
- Practical for labs, datacenters, and clouds
Typhoon distributes upstream Kubernetes, architectural conventions, and cluster addons, much like a GNU/Linux distribution provides the Linux kernel and userspace components.
- Kubernetes v1.8.6 (upstream, via kubernetes-incubator/bootkube)
- Single or multi-master, workloads isolated on workers, Calico or flannel networking
- On-cluster etcd with TLS, RBAC-enabled, network policy
- Ready for Ingress, Dashboards, Metrics, and other optional addons
Typhoon provides a Terraform Module for each supported operating system and platform.
| Platform | Operating System | Terraform Module | Status |
|---|---|---|---|
| AWS | Container Linux | aws/container-linux/kubernetes | beta |
| Bare-Metal | Container Linux | bare-metal/container-linux/kubernetes | stable |
| Digital Ocean | Container Linux | digital-ocean/container-linux/kubernetes | beta |
| Google Cloud | Container Linux | google-cloud/container-linux/kubernetes | beta |
Define a Kubernetes cluster by using the Terraform module for your chosen platform and operating system. Here's a minimal example:
module "google-cloud-yavin" {
source = "git::https://github.com/poseidon/typhoon//google-cloud/container-linux/kubernetes"
# Google Cloud
region = "us-central1"
dns_zone = "example.com"
dns_zone_name = "example-zone"
os_image = "coreos-stable-1576-4-0-v20171206"
cluster_name = "yavin"
controller_count = 1
worker_count = 2
ssh_authorized_key = "ssh-rsa AAAAB3Nz..."
# output assets dir
asset_dir = "/home/user/.secrets/clusters/yavin"
}Fetch modules, plan the changes to be made, and apply the changes.
$ terraform init
$ terraform get --update
$ terraform plan
Plan: 37 to add, 0 to change, 0 to destroy.
$ terraform apply
Apply complete! Resources: 37 added, 0 changed, 0 destroyed.In 4-8 minutes (varies by platform), the cluster will be ready. This Google Cloud example creates a yavin.example.com DNS record to resolve to a network load balancer across controller nodes.
$ KUBECONFIG=/home/user/.secrets/clusters/yavin/auth/kubeconfig
$ kubectl get nodes
NAME STATUS AGE VERSION
yavin-controller-0.c.example-com.internal Ready 6m v1.8.6
yavin-worker-jrbf.c.example-com.internal Ready 5m v1.8.6
yavin-worker-mzdm.c.example-com.internal Ready 5m v1.8.6List the pods.
$ kubectl get pods --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system calico-node-1cs8z 2/2 Running 0 6m
kube-system calico-node-d1l5b 2/2 Running 0 6m
kube-system calico-node-sp9ps 2/2 Running 0 6m
kube-system kube-apiserver-zppls 1/1 Running 0 6m
kube-system kube-controller-manager-3271970485-gh9kt 1/1 Running 0 6m
kube-system kube-controller-manager-3271970485-h90v8 1/1 Running 1 6m
kube-system kube-dns-1187388186-zj5dl 3/3 Running 0 6m
kube-system kube-proxy-117v6 1/1 Running 0 6m
kube-system kube-proxy-9886n 1/1 Running 0 6m
kube-system kube-proxy-njn47 1/1 Running 0 6m
kube-system kube-scheduler-3895335239-5x87r 1/1 Running 0 6m
kube-system kube-scheduler-3895335239-bzrrt 1/1 Running 1 6m
kube-system pod-checkpointer-l6lrt 1/1 Running 0 6m
Typhoon is strict about minimalism, maturity, and scope. These are not in scope:
- In-place Kubernetes Upgrades
- Adding every possible option
- Openstack or Mesos platforms
Ask questions on the IRC #typhoon channel on freenode.net.
Typhoon powers the author's cloud and colocation clusters. The project has evolved through operational experience and Kubernetes changes. Typhoon is shared under a free license to allow others to use the work freely and contribute to its upkeep.
Typhoon addresses real world needs, which you may share. It is honest about limitations or areas that aren't mature yet. It avoids buzzword bingo and hype. It does not aim to be the one-solution-fits-all distro. An ecosystem of free (or enterprise) Kubernetes distros is healthy.
Typhoon is not a product, trial, or free-tier. It is not run by a company, does not offer support or services, and does not accept or make any money. It is not associated with any operating system or platform vendor.
Typhoon clusters will contain only free components. Cluster components will not collect data on users without their permission.
Disclosure: The author works for CoreOS and previously wrote Matchbox and original Tectonic for bare-metal and AWS. This project is not associated with CoreOS.