121 lines
5.9 KiB
Markdown
121 lines
5.9 KiB
Markdown
# Typhoon <img align="right" src="https://storage.googleapis.com/dghubble/spin.png">
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Typhoon is a minimal and free Kubernetes distribution.
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* Minimal, stable base Kubernetes distribution
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* Declarative infrastructure and configuration
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* [Free](#social-contract) (freedom and cost) and privacy-respecting
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* Practical for labs, datacenters, and clouds
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Typhoon distributes upstream Kubernetes, architectural conventions, and cluster addons, much like a GNU/Linux distribution provides the Linux kernel and userspace components.
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## Features
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* Kubernetes v1.7.5 (upstream, via [kubernetes-incubator/bootkube](https://github.com/kubernetes-incubator/bootkube))
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* Single or multi-master, workloads isolated on workers, [Calico](https://www.projectcalico.org/) or [flannel](https://github.com/coreos/flannel) networking
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* On-cluster etcd with TLS, [RBAC](https://kubernetes.io/docs/admin/authorization/rbac/)-enabled, [network policy](https://kubernetes.io/docs/concepts/services-networking/network-policies/)
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* Ready for Ingress, Dashboards, Metrics and other optional [addons](addons/overview.md)
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* Provided via Terraform Modules
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## Modules
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Typhoon provides a Terraform Module for each supported operating system and platform.
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| Platform | Operating System | Terraform Module | Status |
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|---------------|------------------|------------------|--------|
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| AWS | Container Linux | [aws/container-linux/kubernetes](aws.md) | alpha |
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| Bare-Metal | Container Linux | [bare-metal/container-linux/kubernetes](bare-metal.md) | production |
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| Digital Ocean | Container Linux | [digital-ocean/container-linux/kubernetes](digital-ocean.md) | beta |
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| Google Cloud | Container Linux | [google-cloud/container-linux/kubernetes](google-cloud.md) | production |
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## Usage
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* [Concepts](concepts.md)
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* Tutorials
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* [AWS](aws.md)
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* [Bare-Metal](bare-metal.md)
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* [Digital Ocean](digital-ocean.md)
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* [Google-Cloud](google-cloud.md)
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## Example
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Define a Kubernetes cluster by using the Terraform module for your chosen platform and operating system. Here's a minimal example.
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```tf
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module "google-cloud-yavin" {
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source = "git::https://github.com/poseidon/typhoon//google-cloud/container-linux/kubernetes"
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# Google Cloud
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zone = "us-central1-c"
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dns_zone = "example.com"
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dns_zone_name = "example-zone"
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os_image = "coreos-stable-1465-6-0-v20170817"
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cluster_name = "yavin"
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controller_count = 1
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worker_count = 2
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ssh_authorized_key = "ssh-rsa AAAAB3Nz..."
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# output assets dir
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asset_dir = "/home/user/.secrets/clusters/yavin"
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}
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```
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Fetch modules, plan the changes to be made, and apply the changes.
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```sh
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$ terraform get --update
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$ terraform plan
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Plan: 64 to add, 0 to change, 0 to destroy.
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$ terraform apply
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Apply complete! Resources: 64 added, 0 changed, 0 destroyed.
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```
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In 5-10 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.
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```
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$ KUBECONFIG=/home/user/.secrets/clusters/yavin/auth/kubeconfig
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$ kubectl get nodes
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NAME STATUS AGE VERSION
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yavin-controller-1682.c.example-com.internal Ready 6m v1.7.5+coreos.0
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yavin-worker-jrbf.c.example-com.internal Ready 5m v1.7.5+coreos.0
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yavin-worker-mzdm.c.example-com.internal Ready 5m v1.7.5+coreos.0
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```
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List the pods.
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```
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$ kubectl get pods --all-namespaces
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NAMESPACE NAME READY STATUS RESTARTS AGE
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kube-system etcd-operator-3329263108-f443m 1/1 Running 1 6m
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kube-system kube-apiserver-zppls 1/1 Running 0 6m
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kube-system kube-controller-manager-3271970485-gh9kt 1/1 Running 0 6m
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kube-system kube-controller-manager-3271970485-h90v8 1/1 Running 1 6m
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kube-system kube-dns-1187388186-zj5dl 3/3 Running 0 6m
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kube-system kube-etcd-0000 1/1 Running 0 5m
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kube-system kube-etcd-network-checkpointer-crznb 1/1 Running 0 6m
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kube-system kube-flannel-1cs8z 2/2 Running 0 6m
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kube-system kube-flannel-d1l5b 2/2 Running 0 6m
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kube-system kube-flannel-sp9ps 2/2 Running 0 6m
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kube-system kube-proxy-117v6 1/1 Running 0 6m
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kube-system kube-proxy-9886n 1/1 Running 0 6m
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kube-system kube-proxy-njn47 1/1 Running 0 6m
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kube-system kube-scheduler-3895335239-5x87r 1/1 Running 0 6m
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kube-system kube-scheduler-3895335239-bzrrt 1/1 Running 1 6m
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kube-system pod-checkpointer-l6lrt 1/1 Running 0 6m
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```
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## Background
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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.
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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.
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## Social Contract
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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.
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Typhoon clusters will contain only [free](https://www.debian.org/intro/free) components. Cluster components will not collect data on users without their permission.
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*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.*
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