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270 Commits

Author SHA1 Message Date
Mike Danese
1162cfd3b1 kubelet: move most of kubelet server configuration to a config object. 
This is part of migrating kubelet configuration to the componentconfig api
group and is preliminary to retrofitting client configuration and
implementing full fledged API group mechinary.

Signed-off-by: Mike Danese <mikedanese@google.com>
 2016-01-15 15:31:59 -08:00
Mike Danese
35a3785cf6 kubelet: use ConfigurationMap instead of json 2016-01-14 09:32:42 -08:00
Sami Wagiaalla
125295ba40 Remove manageVolumeOwnership from kubelet 2016-01-13 10:37:10 -05:00
Tim St. Clair
e2ffd007f7 Implement node Allocatable 
Add `kube-reserved` and `system-reserved` flags for configuration
reserved resources for usage outside of kubernetes pods. Allocatable is
provided by the Kubelet according to the formula:
```
Allocatable = Capacity - KubeReserved - SystemReserved
```

Also provides a method for estimating a reasonable default for
`KubeReserved`, but the current implementation probably is low and needs
more tuning.
 2016-01-12 17:00:43 -08:00
Phillip Wittrock
f1c8384ff4 Node labels: Remove node-labels-file command line option. Change --node-label format from key=value to key:value to be consitent with how the header key:value is specified on command line. 2016-01-12 12:57:12 -08:00
Clayton Coleman
791d160b42 Split the Kubelet flag options and struct 
Reduces the size of the app/server.go file and ensures that the flags
and their defaults are clearly separated.
 2016-01-06 21:23:06 -05:00
Madhusudan.C.S
059c2aa799 Mitigate node out of disk status oscillation by delaying it. 
Implement a flag that defines the frequency at which a node's out of
disk condition can change its status. Use this flag to suspend out of
disk status changes in the time period specified by the flag, after
the status is changed once.

Set the flag to 0 in e2e tests so that we can predictably test out of
disk node condition.

Also, use util.Clock interface for all time related functionality in
the kubelet. Calling time functions in unversioned package or time
package such as unversioned.Now() or time.Now() makes it really hard
to test such code. It also makes the tests flaky and sometimes
unnecessarily slow due to time.Sleep() calls used to simulate the
time elapsed. So use util.Clock interface instead which can be faked
in the tests.
 2016-01-04 12:23:38 -08:00
Ravi Sankar Penta
d0dd6c844b Allow node IP to be passed as optional config for kubelet 
In case of multiple IPs on the node, this will allow admin to
specify desired IP to be used for the node.
 2016-01-03 09:29:07 -08:00
Chakravarthy Nelluri
fa76de79e5 Add support for flex volume. Flex volume adds support for thirdparty(vendor) 
volumes and custom mounts.
 2015-12-23 14:11:38 -08:00
Tim St. Clair
89bc7992f9 Refactor kubelet server into its own package 
Refactor Kubelet's server functionality into a server package. Most
notably, move pkg/kubelet/server.go into
pkg/kubelet/server/server.go. This will lead to better separation of
concerns and a more readable code hierarchy.
 2015-12-15 10:20:38 -08:00
k8s-merge-robot
d71e838d91 Merge pull request #17760 from gmarek/kubelet-port-salt 
Auto commit by PR queue bot
 2015-12-08 21:14:10 -08:00
Abhi Shah
bb3f49e526 Merge pull request #18089 from ArtfulCoder/oneNSAgain 
SkyDNS is the only NS for Pods with DNSPolicy=ClusterFirst
 2015-12-07 10:20:29 -08:00
gmarek
4060eba626 Use KubeletPort from API object, salt changes, take 2 
This reverts commit a7425bf070, reversing
changes made to 4a9b0fc715.
 2015-12-07 10:31:11 +01:00
Marek Grabowski
348e7ecc5d Merge pull request #17349 from PeterLamar/master 
Small readability improvements in Kubelet
 2015-12-03 10:08:58 +01:00
Abhishek Shah
6c3a88cb3a SkyDNS is the only NS for Pods with DNSPolicy=ClusterFirst 2015-12-02 10:26:49 -08:00
Fabio Yeon
7100d278e3 Revert "SkyDNS is the only NS for Pods with DNSPolicy=ClusterFirst" 2015-12-01 20:58:27 -08:00
k8s-merge-robot
4602220ad0 Merge pull request #15645 from ArtfulCoder/oneNS 
Auto commit by PR queue bot
 2015-12-01 13:51:37 -08:00
k8s-merge-robot
c7cddbefc9 Merge pull request #17697 from dchen1107/event 
Auto commit by PR queue bot
 2015-11-26 13:42:05 -08:00
Abhishek Shah
015df14a4a SkyDNS is the only NS for Pods with DNSPolicy=ClusterFirst 2015-11-25 15:02:40 -08:00
Prashanth Balasubramanian
9aa0efa393 Turn flannel off by default 2015-11-25 09:43:48 +01:00
Prashanth Balasubramanian
ad2d3d4c20 Docs etc 2015-11-25 09:42:59 +01:00
Prashanth Balasubramanian
7aa8ebe30f Flannel handshakes with kubelet. 2015-11-25 09:42:59 +01:00
jiangyaoguo
e3ea9d7c40 add separate client for events in kubelet 2015-11-25 01:28:34 +08:00
Dawn Chen
0b734cec93 Have a sane default for RegistryPullQPS 2015-11-23 17:14:15 -08:00
Rohith
c2526c93fa - adding the -node-label flag to the kubelet which allows for a initial tagging / labelling of the node on cluster registration 
- the labels can come from a series of key=pair value or file:///path_to_file which contains key pairs
 2015-11-18 23:20:58 +00:00
cephaslr
aef7af1ba4 Rename kubelet variable pods to maxPods in kubelet pkg to match pods variable in kubelet cmd. 
Remove comment requesting modification of mesos contrib file, dependencies should be maintained in unit tests
 2015-11-16 20:15:40 -05:00
Yu-Ju Hong
ac778e8203 Adjust the sync/backoff period 
Set resyncInterval to one minute now that we rely on the generic pleg to trigger
pod syncs on container events. When there is an error during syncing, pod
workers need to wake up sooner to retry. Set the sync error backoff period to
10 second in this case.
 2015-11-13 09:57:25 -08:00
Vishnu kannan
4ad3d6f5fe Move container manager into a separate package. 
Inject container manager into Kubelet. This lets us stub out container
manager during integration testing.
 2015-11-11 15:00:37 -08:00
Avesh Agarwal
f111033641 Fix defaults for MaxPods and MaxOpenFiles. 
Fix go formatting and docs.
 2015-11-10 12:20:54 -05:00
Avesh Agarwal
a71a9a9164 Fix default value for StreamingConnectionIdleTimeout. 2015-11-10 11:29:28 -05:00
derekwaynecarr
b403e30d1a Kubelet serialize image pulls had incorrect default 2015-11-03 15:24:01 -05:00
Andy Goldstein
325e0ce68b Fix kubelet help typo 
Fix double percent (%%) typo for image-gc-high-threshold and
image-gc-low-threshold help text.
 2015-10-26 10:37:46 -04:00
feisky
13dce74adb Gendocs for docs/admin/kube-* 2015-10-25 19:24:23 +08:00
k8s-merge-robot
e1559e9fb5 Merge pull request #15352 from pmorie/fsgroup 
Auto commit by PR queue bot
 2015-10-24 01:55:45 -07:00
Steve Sloka
4302208aa9 globally search/replace 'KubeApiQps' to 'KubeAPIQPS' and 'KubeApiBurst' to 'KubeAPIBurst' to match GO rules 2015-10-23 08:24:19 -04:00
Vishnu kannan
0df4b46d4c Adding a kubelet flag to optionally enable parallel image pulls. 2015-10-22 17:19:51 -07:00
Paul Morie
3cd12f5e05 FSGroup implementation 2015-10-22 16:40:59 -04:00
Aaron Crickenberger
69351e3e88 Expose kube-api burst/qps settings for kube components 
Default to hardcodes for components that had them, and 5.0 qps, 10 burst
for those that relied on client defaults

Unclear if maybe it'd be better to just assume these are set as part of
the incoming kubeconfig.  For now just exposing them as flags since it's
easier for me to manually tweak.
 2015-10-12 11:56:15 -04:00
Mike Danese
392f33e417 Merge pull request #14054 from mikedanese/register-master 
register master kubelet with the apiserver
 2015-10-09 17:12:37 -07:00
Yu-Ju Hong
a3e60cc32e Rename imported package local name kubeletTypes to kubetypes 
According to the naming guidelines, package name should not include mixedCaps.
 2015-10-09 10:24:31 -07:00
k8s-merge-robot
b793c3edf1 Merge pull request #14700 from liggitt/kubelet_authz 
Auto commit by PR queue bot
 2015-10-09 03:01:43 -07:00
k8s-merge-robot
538cf72208 Merge pull request #15051 from feiskyer/kubelet/garbage-collection 
Auto commit by PR queue bot
 2015-10-09 02:11:47 -07:00
Jordan Liggitt
9d6b52881d Add authentication/authorization interfaces to kubelet, always include /metrics with /stats 2015-10-09 03:10:00 -04:00
Mike Danese
fa60bbe8e6 add flag to kubelet to ignore the cidr passed down by the apiserver on the master 2015-10-08 21:21:19 -07:00
feisky
d624c7de51 Pass the ContainerGCPolicy in Runtime.GarbageCollect 2015-10-09 06:57:10 +08:00
Yu-Ju Hong
098ab05997 kubelet: move common types to kubelet/types 
This would faciliate tasks such as moving code in pkg/kubelet to sub packages.
 2015-10-08 14:38:01 -07:00
Alex Robinson
fe185f5ea7 Merge pull request #14415 from mesosphere/sttts-code-dedup-kubelet-init 
Preparation for Mesos kubelet code-deduplication
 2015-10-05 14:43:06 -07:00
Abhishek Shah
37692d498c allow hostNetwork, hostPID and hostIPC by default 2015-10-02 15:26:17 -07:00
Dr. Stefan Schimanski
df5e9f8a4d Allow to override the pod config in CreateAndInitKubelet 2015-10-02 19:38:03 +02:00
Dr. Stefan Schimanski
2c03c04879 Make createAndInitKubelet public to be reusable 2015-10-02 19:38:02 +02:00
Dr. Stefan Schimanski
cd760cc4ea Make kubelet builder customizable 
This is the preparation to remove a lot of duplicated code for kubelet
initialization in https://github.com/kubernetes/kubernetes/pull/13036.
 2015-10-02 19:38:02 +02:00
gmarek
fc79ce347e Allow usining FakeOOMAdjuster in Kubelet 2015-10-01 10:55:08 +02:00
k8s-merge-robot
b661cfd21e Merge pull request #14643 from liguangbo/change_Oom_to_OOM 
Auto commit by PR queue bot
 2015-09-29 18:54:22 -07:00
gmarek
7cfb3479e0 Small fixes to Kubemark scripts 2015-09-29 10:24:46 +02:00
liguangbo
12299087da Change Oom to OOM 2015-09-28 18:18:04 +08:00
gmarek
dd3bd73948 Initial Kubemark commit 2015-09-28 11:39:05 +02:00
Dawn Chen
38583307ca flag controlled RLIMIT_NOFILE for kubelet. 2015-09-22 15:18:34 -07:00
Federico Simoncelli
f21d9ac9e4 Support pods with containers using host ipc 
Add a HostIPC field to the Pod Spec to create containers sharing
the same ipc of the host.

This feature must be explicitly enabled in apiserver using the
option host-ipc-sources.

Signed-off-by: Federico Simoncelli <fsimonce@redhat.com>
 2015-09-18 21:13:39 +02:00
Filip Grzadkowski
7fe34f2050 Introduce nsenter writer for volume plugins 2015-09-17 16:40:29 +02:00
k8s-merge-robot
445fde3dc5 Merge pull request #13447 from pweil-/pid-mode 
Auto commit by PR queue bot
 2015-09-16 23:34:35 -07:00
gmarek
4b8ddf3d7e Add information about ports opened by Kubelet to API 2015-09-15 14:24:55 -04:00
Paul Weil
ed80c2b940 pid mode 2015-09-15 13:51:44 -04:00
k8s-merge-robot
bfc60709b1 Merge pull request #13468 from yifan-gu/rkt_doc 
Auto commit by PR queue bot
 2015-09-10 20:32:08 -07:00
Daniel Smith
b225c1d47a Run gofmt (separate commit for easy rebases) 2015-09-10 17:17:59 -07:00
Daniel Smith
15b30b8b09 Move version agnostic parts of client 
pkg/client/unversioned/cache -> pkg/client/cache
pkg/client/unversioned/record -> pkg/client/record
 2015-09-10 17:17:59 -07:00
Yifan Gu
e7b9c50ba1 kubelet/rkt: add support for different stage1 image. 
Also enable grace stop for service files.
 2015-09-10 14:58:03 -07:00
gmarek
44e6a566f6 alphabetize structs in cmd/kubelet/app/server.go 2015-09-10 09:54:12 +02:00
gmarek
3f8953e23b Add additional knobs to SimpleKubelet 2015-09-10 09:24:13 +02:00
jiangyaoguo
1460a1fb9e Rate limit events in kubelet 
1. Add EvnetRecordQps and EventBurst parameter in kubelet.
2. If  EvnetRecordQps and EventBurst was set, rate limit events in kubelet
with a independent ratelimiter as setted.
 2015-09-09 16:57:21 +08:00
derekwaynecarr
5dc74e8dbf Add support for CFS quota in kubelet 2015-09-03 13:44:28 -04:00
He Simei
f5bdea836e specify gc 2015-09-01 10:16:20 +08:00
k8s-merge-robot
4a7115d272 Merge pull request #11955 from pedro-r-marques/flag_resolv_conf 
Auto commit by PR queue bot
 2015-08-30 21:03:54 -07:00
Matt McCoy
5a2f992d75 Fixing kubelet cmd documentation for register-node argument 2015-08-27 21:04:08 -04:00
Pedro Roque Marques
99b1da848d Add kubelet '--resolv-conf' flag. 
Allow the user to specify the resolver configuration file that is used
to determine the default DNS parameters. This defaults to the system's
/etc/resolv.conf.
 2015-08-26 15:41:36 -07:00
Yu-Ju Hong
c237ac4c84 Merge pull request #13003 from yujuhong/decouple_workers 
kubelet: trigger pod workers independently
 2015-08-26 09:53:25 -07:00
Yu-Ju Hong
b906e34576 kubelet: trigger pod workers independently 
Currently, whenever there is any update, kubelet would force all pod workers to
sync again, causing resource contention and hence performance degradation.

This commit flips kubelet to use incremental updates (as opposed to snapshots).
This allows us to know what pods have changed and send updates to those pod
workers only. The `SyncPods` function has been replaced with individual
handlers, each handling an operation (ADD, REMOVE, UPDATE). Pod workers are
still triggered periodically, and kubelet performs periodic cleanup as well.

This commit also spawns a new goroutine solely responsible for killing pods.
This is necessary because pod killing could hold up the sync loop for
indefinitely long amount of time now user can define the graceful termination
period in the container spec.
 2015-08-25 17:52:01 -07:00
Yu-Ju Hong
3bc2157889 Merge pull request #13100 from pweil-/cap-priv-sources 
use privileged source object
 2015-08-25 16:10:50 -07:00
Paul Weil
709e654686 use privileged source object 2015-08-24 16:53:43 -04:00
caogaojin
60cb4406e9 Cleanup deprecated Forever function 
Since util.Forever function has been deprecated, we should cleanup these
pieces of code.
 2015-08-24 10:31:59 +08:00
Jonathan Wills
80e799fc0c Allow configuring the rkt binary in a kubelet with a flag. 
This is necessary because coreos comes with rkt installed, and if we want to use a different version
we need some way to avoid the default one.
 2015-08-19 09:42:13 -04:00
Kris Rousey
ae6c64d9bb Moving everyone to unversioned client 2015-08-18 10:23:03 -07:00
Kris Rousey
2a17dbff13 Moving clientauth package to be under client 2015-08-12 14:43:17 -07:00
Eric Paris
fe6b633e2a Convert for util.IP to just use a net.IP 
pflag can handle IP addresses so use the pflag code instead of doing it
ourselves. This means our code just uses net.IP and we don't have all of
the useless casting back and forth!
 2015-08-10 10:15:05 -04:00
Satnam Singh
991775e77b Merge pull request #10724 from eparis/convert-underscore-to-dash 
Convert underscore to dash
 2015-08-07 16:40:05 -07:00
Satnam Singh
950ec96db0 Merge pull request #12182 from AnanyaKumar/qos-node 
Add QoS support on node
 2015-08-07 14:27:02 -07:00
Ananya Kumar
6ef3de1d5f Add QoS support on node 2015-08-07 11:18:16 -07:00
Eric Paris
cfc9312b7f Convert pkg/ and cmd/ from --flag_name= to --flag-name= 2015-08-07 11:00:13 -04:00
David Walter
792fc2269b change underscores to dashes to match the command line argument 2015-08-06 22:13:44 -05:00
Eric Paris
7cbb52ce04 Use the pflag StringSlice instead of implementing it ourselves 
Saves code and makes our code easier to read because we just use normal
[]string instead of custom type.
 2015-08-06 19:16:13 -04:00
Clayton Coleman
bb79365e2a Split kubelet server initialization into two parts 
First is initializing a KubeletConfig that starts no background
processes. Second is running the config. Provide a legacy path
that won't impact older callers while making it easier to customize
the interfaces passed to the Kubelet.

Used by OpenShift to inject some custom interfaces to the Kubelet
for config management.
 2015-08-06 09:59:58 -04:00
Mike Danese
17defc7383 run gofmt on everything we touched 2015-08-05 17:52:56 -07:00
Mike Danese
8e33cbfa28 rewrite go imports 2015-08-05 17:30:03 -07:00
Mike Danese
12b9da8f3d Merge pull request #9976 from smarterclayton/nsenter_mount_broken 
Fix mount issues in containerized Kubelet
 2015-07-31 17:15:28 -07:00
Mike Danese
9582c7e54e Merge pull request #12024 from a-robinson/metadata 
Support passing a header to the manifest URL in the kubelet.
 2015-07-30 13:46:22 -07:00
Alex Robinson
cf011cad55 Support passing a header to the manifest URL in the kubelet. 
Needed to support using GCE's v1 metadata API, which requires passing
the header "Metadata-Flavor: Google".
 2015-07-30 17:11:27 +00:00
Brendan Burns
99b02bfe73 Add optional throttling to the proxy/exec/attach methods 2015-07-29 13:51:20 -07:00
Mike Danese
b51b4e740f Merge pull request #10639 from caseydavenport/master 
Allow specification of a network plugins directory when starting kubelet
 2015-07-24 11:09:11 -07:00
Vish Kannan
2a5a6b99cb Merge pull request #10635 from smarterclayton/cloud_provider_should_err 
Cloud provider should return an error
 2015-07-23 17:50:45 -07:00
Casey D
aeb7dc6b30 Allow specification of network plugins directory when starting kubelet 2015-07-23 11:21:39 -07:00
Dawn Chen
e810b229c0 Change kubelet flag --max-pods default value to 40 to match v1.0 roadmap. 2015-07-10 13:46:05 -07:00