120 lines
5.4 KiB
Markdown
120 lines
5.4 KiB
Markdown
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## Deploy a production ready kubernetes cluster
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If you have questions, join us on the [kubernetes slack](https://slack.k8s.io), channel **#kubespray**.
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- Can be deployed on **AWS, GCE, Azure, OpenStack or Baremetal**
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- **High available** cluster
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- **Composable** (Choice of the network plugin for instance)
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- Support most popular **Linux distributions**
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- **Continuous integration tests**
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To deploy the cluster you can use :
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[**kubespray-cli**](https://github.com/kubespray/kubespray-cli) <br>
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**Ansible** usual commands and [**inventory builder**](https://github.com/kubernetes-incubator/kubespray/blob/master/contrib/inventory_builder/inventory.py) <br>
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**vagrant** by simply running `vagrant up` (for tests purposes) <br>
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* [Requirements](#requirements)
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* [Kubespray vs ...](docs/comparisons.md)
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* [Getting started](docs/getting-started.md)
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* [Ansible inventory and tags](docs/ansible.md)
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* [Integration with existing ansible repo](docs/integration.md)
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* [Deployment data variables](docs/vars.md)
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* [DNS stack](docs/dns-stack.md)
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* [HA mode](docs/ha-mode.md)
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* [Network plugins](#network-plugins)
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* [Vagrant install](docs/vagrant.md)
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* [CoreOS bootstrap](docs/coreos.md)
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* [Downloaded artifacts](docs/downloads.md)
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* [Cloud providers](docs/cloud.md)
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* [OpenStack](docs/openstack.md)
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* [AWS](docs/aws.md)
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* [Azure](docs/azure.md)
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* [Large deployments](docs/large-deployments.md)
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* [Upgrades basics](docs/upgrades.md)
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* [Roadmap](docs/roadmap.md)
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Supported Linux distributions
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===============
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* **Container Linux by CoreOS**
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* **Debian** Jessie
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* **Ubuntu** 16.04
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* **CentOS/RHEL** 7
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Note: Upstart/SysV init based OS types are not supported.
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Versions of supported components
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--------------------------------
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[kubernetes](https://github.com/kubernetes/kubernetes/releases) v1.6.4 <br>
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[etcd](https://github.com/coreos/etcd/releases) v3.0.17 <br>
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[flanneld](https://github.com/coreos/flannel/releases) v0.6.2 <br>
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[calicoctl](https://github.com/projectcalico/calico-docker/releases) v0.23.0 <br>
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[canal](https://github.com/projectcalico/canal) (given calico/flannel versions) <br>
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[weave](http://weave.works/) v1.8.2 <br>
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[docker](https://www.docker.com/) v1.13.1 (see note)<br>
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[rkt](https://coreos.com/rkt/docs/latest/) v1.21.0 (see Note 2)<br>
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Note: kubernetes doesn't support newer docker versions. Among other things kubelet currently breaks on docker's non-standard version numbering (it no longer uses semantic versioning). To ensure auto-updates don't break your cluster look into e.g. yum versionlock plugin or apt pin).
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Note 2: rkt support as docker alternative is limited to control plane (etcd and
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kubelet). Docker is still used for Kubernetes cluster workloads and network
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plugins' related OS services. Also note, only one of the supported network
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plugins can be deployed for a given single cluster.
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Requirements
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--------------
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* **Ansible v2.3 (or newer) and python-netaddr is installed on the machine
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that will run Ansible commands**
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* **Jinja 2.9 (or newer) is required to run the Ansible Playbooks**
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* The target servers must have **access to the Internet** in order to pull docker images.
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* The target servers are configured to allow **IPv4 forwarding**.
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* **Your ssh key must be copied** to all the servers part of your inventory.
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* The **firewalls are not managed**, you'll need to implement your own rules the way you used to.
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in order to avoid any issue during deployment you should disable your firewall.
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## Network plugins
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You can choose between 4 network plugins. (default: `calico`)
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* [**flannel**](docs/flannel.md): gre/vxlan (layer 2) networking.
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* [**calico**](docs/calico.md): bgp (layer 3) networking.
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* [**canal**](https://github.com/projectcalico/canal): a composition of calico and flannel plugins.
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* **weave**: Weave is a lightweight container overlay network that doesn't require an external K/V database cluster. <br>
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(Please refer to `weave` [troubleshooting documentation](http://docs.weave.works/weave/latest_release/troubleshooting.html)).
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The choice is defined with the variable `kube_network_plugin`. There is also an
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option to leverage built-in cloud provider networking instead.
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See also [Network checker](docs/netcheck.md).
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## Community docs and resources
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- [kubernetes.io/docs/getting-started-guides/kubespray/](https://kubernetes.io/docs/getting-started-guides/kubespray/)
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- [kubespray, monitoring and logging](https://github.com/gregbkr/kubernetes-kargo-logging-monitoring) by @gregbkr
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- [Deploy Kubernetes w/ Ansible & Terraform](https://rsmitty.github.io/Terraform-Ansible-Kubernetes/) by @rsmitty
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- [Deploy a Kubernetes Cluster with Kubespray (video)](https://www.youtube.com/watch?v=N9q51JgbWu8)
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## Tools and projects on top of Kubespray
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- [Digital Rebar](https://github.com/digitalrebar/digitalrebar)
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- [Kubespray-cli](https://github.com/kubespray/kubespray-cli)
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- [Fuel-ccp-installer](https://github.com/openstack/fuel-ccp-installer)
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- [Terraform Contrib](https://github.com/kubernetes-incubator/kubespray/tree/master/contrib/terraform)
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## CI Tests
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[](https://gitlab.com/kubespray-ci/kubernetes-incubator__kubespray/pipelines) </br>
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CI/end-to-end tests sponsored by Google (GCE), DigitalOcean, [teuto.net](https://teuto.net/) (openstack).
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See the [test matrix](docs/test_cases.md) for details.
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