Commit graph

25 commits

Author SHA1 Message Date
Kenichi Omichi
486b223e01
Replace kube-master with kube_control_plane (#7256)
This replaces kube-master with kube_control_plane because of [1]:

  The Kubernetes project is moving away from wording that is
  considered offensive. A new working group WG Naming was created
  to track this work, and the word "master" was declared as offensive.
  A proposal was formalized for replacing the word "master" with
  "control plane". This means it should be removed from source code,
  documentation, and user-facing configuration from Kubernetes and
  its sub-projects.

NOTE: The reason why this changes it to kube_control_plane not
      kube-control-plane is for valid group names on ansible.

[1]: https://github.com/kubernetes/enhancements/blob/master/keps/sig-cluster-lifecycle/kubeadm/2067-rename-master-label-taint/README.md#motivation
2021-03-23 17:26:05 -07:00
keyboardfann
b34ec6c46b
Enhance ha document (#5664)
* Fix HAproxy config to avoid client offered only unsupported versions error

* Add HAproxy SSL check interval

* Fix ha mode document markdown
2020-02-22 07:04:47 -08:00
Maxime Guyot
a9b67d586b Add markdown CI (#5380) 2019-12-04 07:22:57 -08:00
Andreas Krüger
5e0249ae7c Add HAProxy as internal loadbalancer (#4480) 2019-04-10 05:56:18 -07:00
Antoine Legrand
589d22da0b
Update ha-mode.md (#3696)
* Update ha-mode.md
2018-11-12 11:49:23 +01:00
Bily Zhang
b2b421840c Fix some typos (#3690)
Signed-off-by: mooncake <xcoder@tenxcloud.com>
2018-11-10 15:53:58 +01:00
xichengliudui
4daa9aa443 Correct the wrong words 2018-10-31 22:42:05 -04:00
AdamDang
477841d8c0
Update ha-mode.md 2018-10-26 21:55:54 +08:00
Rui Cao
66475f98b9 Fix some typos
Signed-off-by: Rui Cao <ruicao@alauda.io>
2018-09-20 16:27:16 +08:00
Erwan Miran
82a28d6bb3 Add documentation about having HA for etcd 2018-08-31 14:40:25 +02:00
Bogdan Dobrelya
278ac08087 Fix HA docs API access endpoints explained (#2126)
* Fix HA docs API access endpoints explained

Follow-up commit 81347298a3
and fix the endpoint value provided in HA docs.

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>

* Clarify internal LB with external LB use case

* Clarify how to use both internal and external, non-cluster aware and
  not managed with Kubespray, LB solutions.
* Clarify the requirements, like TLS/SSL termination, for such an external LB.
  Unlike to the 'cluster-aware' external LB config, endpoints' security must be
  managed by that non-cluster aware external LB.
* Note that masters always contact their local apiservers via https://bip:sp.
  It's highly unlikely to go down and it reduces latency that might be
  introduced when going host->lb->host. Only computes go that path.

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>

* Add a note for supplementary_addresses_in_ssl_keys

Explain how to benefit from supplementary_addresses_in_ssl_keys

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
2018-01-09 16:01:50 +03:00
Bogdan Dobrelya
bac3bf1a5f
Fix auto-evaluated API access endpoint for bind IP (#2086)
Auto configure API access endpoint with a custom bind IP, if provided.
Fix HA docs' http URLs are https in fact, clarify the insecure vs secure
API access modes as well.

Closes: #issues/2051

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
2018-01-03 17:40:21 +01:00
Steven Hardy
d39a88d63f Allow setting --bind-address for apiserver hyperkube (#1985)
* Allow setting --bind-address for apiserver hyperkube

This is required if you wish to configure a loadbalancer (e.g haproxy)
running on the master nodes without choosing a different port for the
vip from that used by the API - in this case you need the API to bind to
a specific interface, then haproxy can bind the same port on the VIP:

root@overcloud-controller-0 ~]# netstat -taupen | grep 6443
tcp        0      0 192.168.24.6:6443       0.0.0.0:*               LISTEN      0          680613     134504/haproxy
tcp        0      0 192.168.24.16:6443      0.0.0.0:*               LISTEN      0          653329     131423/hyperkube
tcp        0      0 192.168.24.16:6443      192.168.24.16:58404     ESTABLISHED 0          652991     131423/hyperkube
tcp        0      0 192.168.24.16:58404     192.168.24.16:6443      ESTABLISHED 0          652986     131423/hyperkube

This can be achieved e.g via:

kube_apiserver_bind_address: 192.168.24.16

* Address code review feedback

* Update kube-apiserver.manifest.j2
2017-11-29 15:24:02 +00:00
Bogdan Dobrelya
8aafe64397
Defaults for apiserver_loadbalancer_domain_name (#1993)
* Defaults for apiserver_loadbalancer_domain_name

When loadbalancer_apiserver is defined, use the
apiserver_loadbalancer_domain_name with a given default value.

Fix unconsistencies for checking if apiserver_loadbalancer_domain_name
is defined AND using it with a default value provided at once.

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>

* Define defaults for LB modes in common defaults

Adjust the defaults for apiserver_loadbalancer_domain_name and
loadbalancer_apiserver_localhost to come from a single source, which is
kubespray-defaults. Removes some confusion and simplefies the code.

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
2017-11-23 16:15:48 +00:00
John Ko
06b219217b fix some typos in HA doc 2017-07-18 10:44:08 -04:00
Spencer Smith
8203383c03 rename almost all mentions of kargo 2017-06-16 13:25:46 -04:00
Sergii Golovatiuk
d31c040dc0 Change kube-api default port from 443 to 6443
Operator can specify any port for kube-api (6443 default) This helps in
case where some pods such as Ingress require 443 exclusively.

Closes: 820
Signed-off-by: Sergii Golovatiuk <sgolovatiuk@mirantis.com>
2017-02-28 15:45:35 +01:00
Bogdan Dobrelya
f2a4619c57 Align LB defaults with the HA docs
Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
2017-02-23 10:32:44 +01:00
Bogdan Dobrelya
ed1ab11001 Fix misleading HA docs
Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
2017-02-10 10:28:27 +01:00
Greg Althaus
0022a2b29e Add doc updates. 2017-01-17 13:15:48 -06:00
Matthew Mosesohn
95b460ae94 Remove etcd-proxy from all nodes and use etcd multiaccess 2016-11-09 13:31:12 +03:00
Bogdan Dobrelya
40de468413 Update ha docs
Fix mismatch in code and docs, see
https://github.com/kubespray/kargo/pull/528

Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
2016-10-17 15:42:30 +02:00
Matthew Mosesohn
84052ff0b6 use nginx proxy on non-master nodes to proxy apiserver traffic
Also adds all masters by hostname and localhost/127.0.0.1 to
apiserver SSL certificate.

Includes documentation update on how localhost loadbalancer works.
2016-10-05 20:09:10 +03:00
Bogdan Dobrelya
731d32afda Add HA/LB endpoints for kube-apiserver
* Add HA docs for API server.
* Add auto-evaluated internal endpoints and clarify the loadbalancer_apiserver
vars and usecases.
* Use facts for kube_apiserver to not repeat code and enable LB endpoints use.
* Use /healthz check for the wait-for apiserver.
* Use the single endpoint for kubelet instead of the list of apiservers
* Specify kube_apiserver_count to for HA layout

Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
2016-07-25 17:25:45 +02:00
Bogdan Dobrelya
7d816aecf1 Add ha docs
Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
2016-07-22 14:44:36 +02:00