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![Kubernetes Logo](https://s28.postimg.org/lf3q4ocpp/k8s.png)
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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 **#kargo**.
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- Can be deployed on **AWS, GCE, Azure, OpenStack or Baremetal**
- **High available** cluster
- **Composable** (Choice of the network plugin for instance)
- Support most popular **Linux distributions**
- **Continuous integration tests**


To deploy the cluster you can use :

[**kargo-cli**](https://github.com/kubespray/kargo-cli) <br>
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**Ansible** usual commands and [**inventory builder**](https://github.com/kubernetes-incubator/kargo/blob/master/contrib/inventory_builder/inventory.py) <br>
**vagrant** by simply running `vagrant up` (for tests purposes) <br>


*  [Requirements](#requirements)
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*  [Kargo vs ...](docs/comparisons.md)
*  [Getting started](docs/getting-started.md)
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*  [Ansible inventory and tags](docs/ansible.md)
*  [Integration with existing ansible repo](docs/integration.md)
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*  [Deployment data variables](docs/vars.md)
*  [DNS stack](docs/dns-stack.md)
*  [HA mode](docs/ha-mode.md)
*  [Network plugins](#network-plugins)
*  [Vagrant install](docs/vagrant.md)
*  [CoreOS bootstrap](docs/coreos.md)
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*  [Downloaded artifacts](docs/downloads.md)
*  [Cloud providers](docs/cloud.md)
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*  [OpenStack](docs/openstack.md)
*  [AWS](docs/aws.md)
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*  [Azure](docs/azure.md)
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*  [Large deployments](docs/large-deployments.md)
*  [Upgrades basics](docs/upgrades.md)
*  [Roadmap](docs/roadmap.md)

Supported Linux distributions
===============

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* **Container Linux by CoreOS**
* **Debian** Jessie
* **Ubuntu** 16.04
* **CentOS/RHEL** 7

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Note: Upstart/SysV init based OS types are not supported.

Versions of supported components
--------------------------------
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[kubernetes](https://github.com/kubernetes/kubernetes/releases) v1.6.4 <br>
[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>
[canal](https://github.com/projectcalico/canal) (given calico/flannel versions) <br>
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[weave](http://weave.works/) v1.8.2 <br>
[docker](https://www.docker.com/) v1.13.1 (see note)<br>
[rkt](https://coreos.com/rkt/docs/latest/) v1.21.0 (see Note 2)<br>
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).

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
plugins' related OS services. Also note, only one of the supported network
plugins can be deployed for a given single cluster.

Requirements
--------------

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* **Ansible v2.3 (or newer) and python-netaddr is installed on the machine
  that will run Ansible commands**
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* **Jinja 2.9 (or newer) is required to run the Ansible Playbooks**
* The target servers must have **access to the Internet** in order to pull docker images.
* 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.
* 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.


## Network plugins
You can choose between 4 network plugins. (default: `calico`)

* [**flannel**](docs/flannel.md): gre/vxlan (layer 2) networking.

* [**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>
(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
option to leverage built-in cloud provider networking instead.
See also [Network checker](docs/netcheck.md).
## Community docs and resources
 - [kubernetes.io/docs/getting-started-guides/kargo/](https://kubernetes.io/docs/getting-started-guides/kargo/)
 - [kargo, monitoring and logging](https://github.com/gregbkr/kubernetes-kargo-logging-monitoring) by @gregbkr
 - [Deploy Kubernetes w/ Ansible & Terraform](https://rsmitty.github.io/Terraform-Ansible-Kubernetes/) by @rsmitty
 - [Deploy a Kubernets Cluster with Kargo (video)](https://www.youtube.com/watch?v=N9q51JgbWu8)

## Tools and projects on top of Kargo
 - [Digital Rebar](https://github.com/digitalrebar/digitalrebar)
 - [Kargo-cli](https://github.com/kubespray/kargo-cli)
 - [Fuel-ccp-installer](https://github.com/openstack/fuel-ccp-installer)
 - [Terraform Contrib](https://github.com/kubernetes-incubator/kargo/tree/master/contrib/terraform)

## CI Tests

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![Gitlab Logo](https://s27.postimg.org/wmtaig1wz/gitlabci.png)
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[![Build graphs](https://gitlab.com/kargo-ci/kubernetes-incubator__kargo/badges/master/build.svg)](https://gitlab.com/kargo-ci/kubernetes-incubator__kargo/pipelines) </br>
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.