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805 commits

Author SHA1 Message Date
Matthew Mosesohn
14e10988fc Merge pull request #989 from holser/kubelet_remedy 
Kubernetes Reliability Improvements
 2017-02-10 09:29:29 +03:00
Matthew Mosesohn
729bf56910 Merge pull request #1004 from galthaus/kubelet-load-modules 
Allow kubelet to load kernel modules
 2017-02-10 09:28:16 +03:00
Sergii Golovatiuk
c0d2cca45d 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
e0cfea02bf Enable weave upgrade from previous versions 
Raise readiness probe initial time to 60 (was 30)
 2017-02-09 21:39:31 +03:00
Matthew Mosesohn
b68afe7efa Merge pull request #998 from mattymo/fix_upgrade_daemonsets 
Fix upgrade for all daemonset type resources
 2017-02-09 20:02:21 +03:00
Greg Althaus
d6f1f0c88b Make kubelet_load_modules always present but false. 
Update code and docs for that assumption.
 2017-02-09 10:25:44 -06:00
Greg Althaus
8f00a07bf6 Due to the nsenter and other reworks, it appears that 
kubelet lost the ability to load kernel modules.  This
puts that back by adding the lib/modules mount to kubelet.

The new variable kubelet_load_modules can be set to true
to enable this item.  It is OFF by default.
 2017-02-09 10:02:26 -06:00
Matthew Mosesohn
b5cfeca474 Merge pull request #999 from holser/decrease_weave_ram_limits 
Lower weave RAM settings.
 2017-02-09 13:19:12 +03:00
Bogdan Dobrelya
93c562b1bb Merge pull request #902 from insequent/master 
Adding vault role
 2017-02-09 09:24:52 +01:00
Bogdan Dobrelya
d0f4ab3129 Merge pull request #993 from code0x9/master 
enable proxy support on docker repository
 2017-02-09 09:21:01 +01:00
Antoine Legrand
35a7ad55d0 Merge pull request #986 from vwfs/dnsmasq_system_nameservers 
Also add the system nameservers to upstream servers in dnsmasq
 2017-02-08 23:21:54 +01:00
Josh Conant
764ad6e099 Vault security hardening and role isolation 2017-02-08 21:41:36 +00:00
Josh Conant
1025d489ad Adding the Vault role 2017-02-08 21:31:28 +00:00
Sergii Golovatiuk
bde4d11a4a Lower weave RAM settings. 
- Since Weave 1.8.x was rewritten in Golang we may decrease RAM settings
  to continue using g1-small for CI
 2017-02-08 18:50:36 +01:00
Matthew Mosesohn
2d1109e09e Fix upgrade for all daemonset type resources 
Daemonsets cannot be simply upgraded through a single API call,
regardless of any kubectl documentation. The resource must be
purged and then recreated in order to make any changes.
 2017-02-08 18:16:00 +03:00
Alexander Block
94d9f03ddb Also add the system nameservers to upstream servers in dnsmasq 
Also make no-resolv unconditional again. Otherwise, we may end up in
a resolver loop. The resolver loop was the cause for the piling up
parallel queries.
 2017-02-08 14:38:55 +01:00
Matthew Mosesohn
0ea7f94b0c Merge pull request #994 from mattymo/docker_save 
Change docker save compress level to 1
 2017-02-08 15:13:15 +03:00
Matthew Mosesohn
ce3bee4eb8 Merge pull request #990 from mattymo/fix_cert_upgrade 
Fix check for node-NODEID certs existence
 2017-02-08 14:44:09 +03:00
Matthew Mosesohn
94407f86ff Merge pull request #971 from bradbeam/efk 
Adding EFK logging stack
 2017-02-08 14:28:04 +03:00
Mark Lee
3cc9693895 Update rh_docker.repo.j2 2017-02-08 20:03:51 +09:00
Matthew Mosesohn
3c7952d7f1 Merge pull request #992 from vwfs/host_mount_dev 
Host mount /dev for kubelet
 2017-02-08 13:45:22 +03:00
Matthew Mosesohn
a4caceedef Change docker save compress level to 1 
Faster gzip improves CI deploy times by at least 2 mins.

Fixes #982
 2017-02-08 13:25:11 +03:00
Mark Lee
5a2de36a55 Merge branch 'master' of https://github.com/kubespray/kargo 2017-02-08 19:19:26 +09:00
Mark Lee
8783cef044 enable proxy support on docker repository 2017-02-08 19:19:08 +09:00
Matthew Mosesohn
0de857a18a Merge pull request #987 from mattymo/etcd-retune 
Re-tune ETCD performance params
 2017-02-08 13:00:25 +03:00
Bogdan Dobrelya
320d03c01c Merge pull request #956 from adidenko/update-netchecker 
Update playbooks to support new netchecker
 2017-02-08 10:09:46 +01:00
Alexander Block
08367f4abb Host mount /dev for kubelet 2017-02-08 09:55:51 +01:00
Matthew Mosesohn
012bc49404 Fix check for node-NODEID certs existence 
Fixes upgrade from pre-individual node cert envs.
 2017-02-07 21:06:48 +03:00
Matthew Mosesohn
ad2e1e10bf Re-tune ETCD performance params 
Reduce election timeout to 5000ms (was 10000ms)
Raise heartbeat interval to 250ms (was 100ms)
Remove etcd cpu share (was 300)
Make etcd_cpu_limit and etcd_memory_limit optional.
 2017-02-07 20:15:14 +03:00
Matthew Mosesohn
7bfade0fbb Merge pull request #969 from mattymo/port_reserve 
Prevent dynamic port allocation in nodePort range
 2017-02-07 18:24:57 +03:00
Aleksandr Didenko
3b816ee660 Update playbooks to support new netchecker 
Netchecker is rewritten in Go lang with some new args instead of
env variables. Also netchecker-server no longer requires kubectl
container. Updating playbooks accordingly.
 2017-02-07 15:20:34 +01:00
Matthew Mosesohn
7a9161d462 Prevent dynamic port allocation in nodePort range 
kube_apiserver_node_port_range should be accessible only
to kube-proxy and not be taken by a dynamic port allocation.

Potentially temporary if https://github.com/kubernetes/kubernetes/issues/40920
gets fixed.
 2017-02-06 20:01:16 +03:00
Sergii Golovatiuk
8503a5afea Improve Weave 
- Remove weave CPU limits from .gitlab-ci.yml. Closes: #975
- Fix weave version in documentation

Signed-off-by: Sergii Golovatiuk <sgolovatiuk@mirantis.com>
 2017-02-06 13:24:40 +01:00
Antoine Legrand
edcd91f7f6 Merge pull request #963 from rutsky/bastion-ansible-host 
handle both 'ansible_host' and 'ansible_ssh_host' in bastion configration
 2017-02-04 15:42:39 -05:00
Brad Beam
8218b9970f Adding EFK logging stack 2017-02-03 16:27:08 -06:00
Bogdan Dobrelya
e53d3fe9c8 Merge pull request #949 from vmtyler/master 
Fixes Support for OpenStack v3 credentials
 2017-02-03 12:22:00 +01:00
Vladimir Rutsky
1711530cd4 handle both 'ansible_host' and 'ansible_ssh_host' in bastion configuration 
'absible_ssh_host' is deprecated in Ansible 2.0 and at least
'contrib/inventory_builder/inventory.py' uses 'ansible_host' instead.
 2017-02-02 18:34:53 +03:00
Matthew Mosesohn
b7cbd5b9c5 Merge pull request #927 from holser/nsenter_fix 
Remove nsenter workaround
 2017-02-02 18:18:15 +03:00
Matthew Mosesohn
b9869b7708 Merge pull request #901 from galthaus/dns-tweak 
DHCP Hook protections
 2017-02-02 16:47:16 +03:00
Sergii Golovatiuk
b610c1627e Remove nsenter workaround 
- Docker 1.12 and further don't need nsenter hack. This patch removes
  it.  Also, it bumps the minimal version to 1.12.

Closes #776

Signed-off-by: Sergii Golovatiuk <sgolovatiuk@mirantis.com>
 2017-02-02 14:38:11 +01:00
Sergii Golovatiuk
83a90861ba Fix weave-net after upgrade to 1.82 
- Set recommended CPU settings
- Cleans up upgrade to weave 1.82. The original WeaveWorks
daemonset definition uses weave-net name.
- Limit DS creation to master
- Combined 2 tasks into one with better condition
 2017-02-02 10:31:58 +01:00
Matthew Mosesohn
776e48e898 Merge pull request #957 from mattymo/weave-net-naming 
Rename weave-kube to weave-net
 2017-02-02 10:18:02 +03:00
Greg Althaus
0037d0e6b2 This continues the DHCP hook checks. Also protect the create side 
if the system doesn't have any config files at all.
 2017-01-31 09:56:27 -06:00
Matthew Mosesohn
82619b99ba Merge pull request #951 from mattymo/k8s-certs-scale 
Fix cert distribution at scale
 2017-01-31 18:49:26 +03:00
Matthew Mosesohn
a0e50a12a6 Merge pull request #954 from artem-panchenko/improve_dnsmasq 
Explicitly set config path for DNSMasq
 2017-01-31 18:48:46 +03:00
Matthew Mosesohn
f85dbfffe9 Rename weave-kube to weave-net 
Cleans up upgrade to weave 1.82. The original WeaveWorks
daemonset definition uses weave-net name.
 2017-01-31 18:47:27 +03:00
Matthew Mosesohn
1011e416a7 Fix cert distribution at scale 
Use stdin instead of bash args to pass node filenames and base64 data.
Use tempfile for master cert data
 2017-01-31 16:27:45 +03:00
Matthew Mosesohn
14331d938c Merge pull request #880 from bradbeam/weave-kube 
Weave kube
 2017-01-31 13:31:09 +03:00
Artem Panchenko
5ed8f686b3 Explicitly set config path for DNSMasq 
When DNSMasq is configured to read its settings
from a folder ('-7' or '--conf-dir' option) it only
checks that the directory exists and doesn't fail if
it's empty. It could lead to a situation when DNSMasq
is running and handles requests, but not properly
configured, so some of queries can't be resolved.
 2017-01-31 12:14:57 +02:00
Matthew Mosesohn
688cd1ffcc Merge pull request #944 from tureus/skip-cloud-config-on-etcd 
Bugfix: skip cloud_config on etcd
 2017-01-30 20:12:36 +03:00