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Deploy a Production Ready Kubernetes Cluster
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Vladimir Rutsky bff955ff7e Mount host's /var/log into kubelet container 
Kubelet is responsible for creating symlinks from /var/lib/docker to /var/log
to make fluentd logging collector work.
However without using host's /var/log those links are invisible to fluentd.

This is done on rkt configuration too.
 		2017-02-16 22:31:05 +03:00
.github GITHUB: Added issue template file 2017-01-03 16:09:35 +01:00
contrib Consolidating kube.py module 2017-01-27 11:28:11 -06:00
docs Change default network plugin to Calico 2017-02-15 16:15:22 +03:00
inventory Change default network plugin to Calico 2017-02-15 16:15:22 +03:00
library Consolidating kube.py module 2017-01-27 11:28:11 -06:00
roles Mount host's /var/log into kubelet container 2017-02-16 22:31:05 +03:00
scripts remove temporary file 2017-02-15 17:40:05 +03:00
tests Add timings to RECAP output. 2017-02-14 18:47:02 +01:00
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README.md Change default network plugin to Calico 2017-02-15 16:15:22 +03:00
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README.md

Kubernetes Logo

##Deploy a production ready kubernetes cluster

If you have questions, join us on the kubernetes slack, channel #kargo.

  • 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
Ansible usual commands and inventory builder
vagrant by simply running vagrant up (for tests purposes)

Supported Linux distributions

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

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

Versions of supported components

kubernetes v1.5.1
etcd v3.0.6
flanneld v0.6.2
calicoctl v0.23.0
canal (given calico/flannel versions)
weave v1.8.2
docker v1.12.5
rkt v1.21.0

Note: rkt support as docker alternative is limited to control plane (etcd and 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

  • The target servers must have access to the Internet in order to pull docker images.
  • The firewalls are not managed, you'll need to implement your own rules the way you used to. in order to avoid any issue during deployment you should disable your firewall.
  • The target servers are configured to allow IPv4 forwarding.
  • Copy your ssh keys to all the servers part of your inventory.
  • Ansible v2.2 (or newer) and python-netaddr

Network plugins

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

  • flannel: gre/vxlan (layer 2) networking.

  • calico: bgp (layer 3) networking.

  • canal: a composition of calico and flannel plugins.

  • weave: Weave is a lightweight container overlay network that doesn't require an external K/V database cluster.
    (Please refer to weave troubleshooting documentation).

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.

CI Tests

Gitlab Logo

Build graphs

CI/end-to-end tests sponsored by Google (GCE), and teuto.net for OpenStack. See the test matrix for details.