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Deploy a Production Ready Kubernetes Cluster
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Ryan Zenker ad9049a49e baremetal tweaks 
* allow installs to not have hostname overriden with fqdn from inventory
* calico-config no longer requires local as and will default to global
* when cloudprovider is not defined, use the inventory_hostname for cni-calico
* allow reset to not restart network (buggy nodes die with this cmd)
* default kube_override_hostname to inventory_hostname instead of ansible_hostname
 		2018-02-06 13:52:22 -05:00
.github rename almost all mentions of kargo 2017-06-16 13:25:46 -04:00
contrib Update rpm spec and pbr setup configs (#2170) 2018-01-18 16:22:37 +01:00
docs remove references to deprecated kubespray cli 2018-02-05 10:00:21 -05:00
extra_playbooks Move cluster roles and system namespace to new role 2017-10-26 14:36:05 +01:00
inventory Merge pull request #2201 from riverzhang/ipvs 2018-02-01 22:29:52 -06:00
library Idempotency fixes (#1838) 2017-10-25 21:19:40 +01:00
roles baremetal tweaks 2018-02-06 13:52:22 -05:00
scripts Add etcd key and cert environment variables for use with client auth 2018-01-02 13:52:17 -05:00
tests Update Kubernetes to v1.9.0 (#2100) 2017-12-25 08:57:45 +00:00
.gitignore update terraform, fix deprecated values add default_tags, fix ansible inventory (#1821) 2017-10-18 11:44:32 +01:00
.gitlab-ci.yml Update Kubernetes to v1.9.0 (#2100) 2017-12-25 08:57:45 +00:00
.gitmodules Remove submodules 2016-03-04 16:14:01 +01:00
.yamllint Adding yamllinter to ci steps (#1556) 2017-08-24 12:09:52 +03:00
CONTRIBUTING.md files needed to move kargo to k8s 2016-08-16 14:01:03 +02:00
LICENSE Create LICENSE 2016-03-01 15:37:01 +01:00
OWNERS Update OWNERS 2016-10-28 11:16:11 +04:00
README.md remove references to deprecated kubespray cli 2018-02-05 10:00:21 -05:00
RELEASE.md fix typo 'on' > 'one' 2017-07-14 15:25:09 -04:00
Vagrantfile Revert "Change deprecated vagrant ansible flag 'sudo' to 'become'" (#1960) 2017-11-12 09:20:30 +00:00
ansible.cfg Update rpm spec and pbr setup configs (#2170) 2018-01-18 16:22:37 +01:00
cluster.yml fix broken variable in ansible 2.4.1.0 and ensure tasks for calico-rr (#1982) 2017-11-16 18:44:15 +00:00
code-of-conduct.md Update code-of-conduct.md 2017-12-20 14:12:38 -05:00
requirements.txt Update gce CI (#1748) 2017-10-05 16:52:28 +01:00
reset.yml Fixes to reset (#2046) 2017-12-11 12:49:21 +00:00
scale.yml Added proxy_env to scale and upgrade playbooks 2017-12-06 15:06:34 +00:00
setup.cfg Update rpm spec and pbr setup configs (#2170) 2018-01-18 16:22:37 +01:00
setup.py Add pbr build configuration 2017-08-18 12:56:01 +02:00
upgrade-cluster.yml Added proxy_env to scale and upgrade playbooks 2017-12-06 15:06:34 +00:00

README.md

Kubernetes Logo

Deploy a production ready kubernetes cluster

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

  • 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 :

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 v1.9.2
etcd v3.2.4
flanneld v0.8.0
calico v2.5.0
canal (given calico/flannel versions)
contiv v1.0.3
weave v2.0.1
docker v1.13 (see note)
rkt v1.21.0 (see Note 2)

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 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

  • Ansible v2.4 (or newer) and python-netaddr is installed on the machine that will run Ansible commands
  • 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.
  • 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. in order to avoid any issue during deployment you should disable your firewall.

Network plugins

You can choose between 4 network plugins. (default: calico, except Vagrant uses flannel)

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

  • calico: bgp (layer 3) networking.

  • canal: a composition of calico and flannel plugins.

  • contiv: supports vlan, vxlan, bgp and Cisco SDN networking. This plugin is able to apply firewall policies, segregate containers in multiple network and bridging pods onto physical networks.

  • 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.

Community docs and resources

Tools and projects on top of Kubespray

CI Tests

Gitlab Logo

Build graphs

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