Commit graph

308 commits

Author SHA1 Message Date
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
Bogdan Dobrelya
32cd6e99b2 Add etcd proxy support
* Enforce a etcd-proxy role to a k8s-cluster group members. This
provides an HA layout for all of the k8s cluster internal clients.
* Proxies to be run on each node in the group as a separate etcd
instances with a readwrite proxy mode and listen the given endpoint,
which is either the access_ip:2379 or the localhost:2379.
* A notion for the 'kube_etcd_multiaccess' is: ignore endpoints and
loadbalancers and use the etcd members IPs as a comma-separated
list. Otherwise, clients shall use the local endpoint provided by a
etcd-proxy instances on each etcd node. A Netwroking plugins always
use that access mode.
* Fix apiserver's etcd servers args to use the etcd_access_endpoint.
* Fix networking plugins flannel/calico to use the etcd_endpoint.
* Fix name env var for non masters to be set as well.
* Fix etcd_client_url was not used anywhere and other etcd_* facts
evaluation was duplicated in a few places.
* Define proxy modes only in the env file, if not a master. Del
an automatic proxy mode decisions for etcd nodes in init/unit scripts.
* Use Wants= instead of Requires= as "This is the recommended way to
hook start-up of one unit to the start-up of another unit"
* Make apiserver/calico Wants= etcd-proxy to keep it always up

Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
Co-authored-by: Matthew Mosesohn <mmosesohn@mirantis.com>
2016-07-19 14:09:40 +02:00
Jean-Christophe Sirot
a2bdcabc33 Some additional roadmap items 2016-07-08 16:32:01 +02:00
Smana
1e8ee99d1a a small change in the roadmap 2016-07-08 09:40:12 +02:00
Smaine Kahlouch
5fdea4b947 first version of the roadmap 2016-07-08 09:21:33 +02:00
Jean-Christophe Sirot
e2d6b92370 Add CI test matrix 2016-07-07 10:35:59 +02:00
Smaine Kahlouch
585102ee20 add documentation 2016-07-04 14:37:30 +02:00