Commit graph

13 commits

Author SHA1 Message Date
Nguyen Hai Truong
516e9a4de6
Securing http link to https link (#5617)
Fix http link to https link for security

Signed-off-by: Nguyen Hai Truong <truongnh@vn.fujitsu.com>
2020-02-13 14:46:17 -08:00
Maxime Guyot
a9b67d586b Add markdown CI (#5380) 2019-12-04 07:22:57 -08:00
Matthew Mosesohn
5f12b7aedf Remove kubedns and dnsmasq. Move dns_late phase after apps (#4406)
Both kubedns and dnsmasq modes are long not maintained.
We should run dns_late steps at the end because sshd
makes DNS lookups during Ansible run and has 2s timeouts
for each failed lookup trying to connect to coredns before
it is ready.
2019-04-01 12:32:34 -07:00
zhengchuan hu
0b1200bb49 add tip to large-deployments.doc
set the ``etcd_events_cluster_setup: true`` store events
in a separate dedicated etcd instance.
2018-03-07 19:00:00 +08:00
Merouane Atig
911af3f331
Fix link markdown markup 2018-02-13 16:02:50 +01:00
Miouge1
240d4193ae Update information about network sizes 2018-01-26 15:23:21 +01:00
Sergii Golovatiuk
c07d60bc90 Kubernetes Reliability Improvements
- Exclude kubelet CPU/RAM (kube-reserved) from cgroup. It decreases a
  chance of overcommitment
- Add a possibility to modify Kubelet node-status-update-frequency
- Add a posibility to configure node-monitor-grace-period,
  node-monitor-period, pod-eviction-timeout for Kubernetes controller
  manager
- Add Kubernetes Relaibility Documentation with recomendations for
  various scenarios.

Signed-off-by: Sergii Golovatiuk <sgolovatiuk@mirantis.com>
2017-02-09 23:54:08 +01:00
Matthew Mosesohn
f742fc3dd1 Add scale thresholds to split etcd and k8s-masters
Also adds calico-rr group if there are standalone etcd nodes.
Now if there are 50 or more nodes, 3 etcd nodes will be standalone.
If there are 200 or more nodes, 2 kube-masters will be standalone.
If thresholds are exceeded, kube-node group cannot add nodes that
belong to etcd or kube-master groups (according to above statements).
2017-01-19 17:30:56 +03:00
Bogdan Dobrelya
a56d9de502 Systemd units, limits, and bin path fixes
* Add restart for weave service unit
* Reuse docker_bin_dir everythere
* Limit systemd managed docker containers by CPU/RAM. Do not configure native
  systemd limits due to the lack of consensus in the kernel community
  requires out-of-tree kernel patches.

Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
2016-12-28 15:49:42 +01:00
Bogdan Dobrelya
b8bc8eee41 Add download_always_pull check and sha256 for docker images
Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
2016-12-20 17:02:09 +01:00
Bogdan Dobrelya
2d18e19263 Tune dnsmasq/kubedns limits, replicas, logging
* Add dns_replicas, dns_memory/cpu_limit/requests vars for
dns related apps.
* When kube_log_level=4, log dnsmasq queries as well.
* Add log level control for skydns (part of kubedns app).
* Add limits/requests vars for dnsmasq (part of kubedns app) and
  dnsmasq daemon set.
* Drop string defaults for kube_log_level as it is int and
  is defined in the global vars as well.
* Add docs

Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
2016-11-25 12:49:17 +01:00
Bogdan Dobrelya
aa447585c4 Fix download dnsmasq image dependency on docker
When download_run_once with download_localhost is used, docker is
expected to be running on the delegate localhost. That may be not
the case for a non localhost delegate, which is the kube-master
otherwise. Then the dnsmasq role, had it been invoked early before
deployment starts, would fail because of the missing docker dependency.

* Fix that dependency on docker and do not pre download dnsmasq image
  for the dnsmasq role, if download_localhost is disabled.
* Remove become: false for docker CLI invocation because that's not
  the common pattern to allow users access docker CLI w/o sudo.
* Fix opt bin path hack for localhost delegate to ignore errors when
  it fails with "sudo password required" otherwise.
* Describe download_run_once with download_localhost use case in docs
  as well.

Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
2016-11-24 18:31:26 +01:00
Sean M. Collins
42a5055d3c Rename large-deploymets.md to large-deployments.md
Filename was a typo
2016-09-19 11:51:37 -04:00
Renamed from docs/large-deploymets.md (Browse further)