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851 Commits

Author SHA1 Message Date
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
Eric Paris
cde68d294b Do not create subject alt dns names for kubelet self signed certs 
PR #10643 Started adding the dns names for the kubernetes master to self
sign certs which were created. The kubelet uses this same code, and thus
the kubelet cert started saying it was valid for these name as well.
While hardless, the kubelet cert shouldn't claim to be these things. So
make the caller explicitly list both their ip and dns subject alt names.
 2015-07-04 23:01:01 -04:00
Eric Paris
7a29af4d2c Add Subject Alt Names to self signed apiserver certs 
A cert from GCE shows:
- IP Address:23.236.49.122
- IP Address:10.0.0.1
- DNS:kubernetes,
- DNS:kubernetes.default
- DNS:kubernetes.default.svc
- DNS:kubernetes.default.svc.cluster.local
- DNS:e2e-test-zml-master

A similarly configured self signed cert shows:
- IP Address:23.236.49.122
- IP Address:10.0.0.1
- DNS:kubernetes
- DNS:kubernetes.default
- DNS:kubernetes.default.svc

So we are missing the fqdn kubernetes.default.svc.cluster.local. The
apiserver does not even know the fqdn! it's defined entirely by the
kubelet! We also do not have the cluster name certificate. This may be
--cluster-name= argument to the apiserver but will take a bit more
research.
 2015-07-01 17:05:17 -04:00
Clayton Coleman
d8bb4552de Cloud provider should return an error 
Not fatal - makes cloud provider useful in methods that
can return error.
 2015-07-01 14:41:49 -04:00
Clayton Coleman
93b14b9ede Search the parent FS for the proper binaries 2015-06-26 14:48:22 -04:00
Dawn Chen
6ddfa512de Revert "Revert "Fix the race between configuring cbr0 and restarting static pods"" 
This reverts commit fd0a95dd12.
 2015-06-24 11:10:10 -07:00
Piotr Szczesniak
fd0a95dd12 Revert "Fix the race between configuring cbr0 and restarting static pods" 2015-06-24 09:56:49 +02:00
Brendan Burns
192ffdfb25 Fix the container bridge so that it can create cbr0 
Fix the kubelet so that it tries to sync status, even if Docker is down
 2015-06-22 23:18:01 -07:00
Clayton Coleman
8217495ee3 Kubelet event logging is classified as V(3) 
Important, but not strictly required for normal operation V(2)
 2015-06-18 19:21:14 -04:00
Justin Santa Barbara
df87470ecf Allow cloud providers to return a node identifier different from the hostname 2015-06-18 12:40:05 -07:00
Justin Santa Barbara
dee8d4b90b For kubelet, differentiate between the nodeName and the hostname 
This will allow us to use a nodeName that is not the hostname,
for example on clouds where the hostname is not the natural identifier
for a node.
 2015-06-18 12:40:01 -07:00
Satnam Singh
e4f5529a2d Revert "Allow nodename to be != hostname, use AWS instance ID on AWS" 2015-06-18 11:27:55 -07:00
Justin Santa Barbara
efaead81dc Allow cloud providers to return a node identifier different from the hostname 2015-06-17 00:40:43 -04:00
Justin Santa Barbara
c28cdfbd43 For kubelet, differentiate between the nodeName and the hostname 
This will allow us to use a nodeName that is not the hostname,
for example on clouds where the hostname is not the natural identifier
for a node.
 2015-06-17 00:40:43 -04:00
Mike Danese
5896ac9e07 skip GetHostIP call on standalone mode kubelet to fix spammy log statement 2015-06-12 11:37:53 -07:00
Abhi Shah
52db576617 Merge pull request #8882 from mesosphere/upstream_k8sm 
Upstream Kubernetes-Mesos framework
 2015-06-12 06:36:20 -07:00
Abhi Shah
0f4f2eb05a Merge pull request #9617 from davidopp/master 
Add a warning that setting --port flag to Kubelet breaks "kubectl log…
 2015-06-11 10:18:41 -07:00
David Oppenheimer
b83a32955b Add a warning that setting --port flag to Kubelet breaks "kubectl logs." Temporary 
fix for #9325.
 2015-06-10 17:24:49 -07:00
James DeFelice
7d66559725 added comments at the top of native k8s files which, if changed, might affect some of the k8sm code 2015-06-10 20:31:22 +00:00
Abhi Shah
0fbd4900d1 Merge pull request #9423 from mesosphere/create-api-server-client 
refactor createAPIServerClient for easier integration with 3rd party …
 2015-06-10 12:54:17 -07:00
James DeFelice
f54eeeb8d6 refactor createAPIServerClient for easier integration with 3rd party kubelet extensions, e.g. kubernetes-mesos 2015-06-10 02:13:58 +00:00
CJ Cullen
2d85e4a094 Use Node IP Address instead of Node.Name in minion.ResourceLocation. 
Refactor GetNodeHostIP into pkg/util/node (instead of pkg/util to break import cycle).

Include internalIP in gce NodeAddresses.
 2015-06-08 16:58:00 -07:00
James DeFelice
b3c8f71aca refactor tls init for reuse 2015-06-05 11:45:40 +00:00
Brian Grant
f72fa67924 Revert "Use Node IP Address instead of Node.Name in minion.ResourceLocation." 2015-06-03 18:19:22 -07:00
Brian Grant
d4acb1d676 Merge pull request #9155 from cjcullen/mig 
Use Node IP Address instead of Node.Name in minion.ResourceLocation.
 2015-06-02 22:51:20 -07:00
CJ Cullen
4e5d0da839 Use Node IP Address instead of Node.Name in minion.ResourceLocation. 
Refactor GetNodeHostIP into pkg/util/node (instead of pkg/util to break import cycle).

Include internalIP in gce NodeAddresses. Remove NodeLegacyHostIP
 2015-06-02 20:01:49 -07:00
Andy Goldstein
2a0d7ebb11 Add support for pluggable Docker exec handlers 
Add support for pluggable Docker exec handlers. The default handler is
now Docker's native exec API call. The previous default, nsenter, can be
selected by passing --docker-exec-handler=nsenter when starting the
kubelet.
 2015-06-01 16:59:59 -04:00
Victor Marmol
9a2630ac6e Make system container name configurable. 2015-05-26 20:49:55 -07:00
Dawn Chen
677a4aa1a7 Merge pull request #8164 from cjcullen/cloudprovider 
Route creation reconciler loop.
 2015-05-22 12:27:50 -07:00
Dawn Chen
3c38abe6b0 Merge pull request #8545 from dchen1107/cleanup 
Change the default value of maximum-dead-containers-per-container to 2
 2015-05-21 09:26:14 -07:00
CJ Cullen
bf646abf8d Revert "Revert "Modify nodes to register directly with the master."" 
This reverts commit c53786ab31.
 2015-05-20 14:21:03 -07:00
Quinton Hoole
c53786ab31 Revert "Modify nodes to register directly with the master." 2015-05-20 13:47:51 -07:00
Dawn Chen
d46bb117af Change the default value of maximum-dead-containers-per-container to 2 2015-05-19 17:30:16 -07:00
Robert Bailey
01467e0bb8 Modify nodes to register directly with the master. 
- Delete nodes when they are no longer ready and don't exist in the
cloud provider.
 - Label each node with it's hostname.
 - Add flag to skip node registration.
 - Add a test for registering an existing node.
 2015-05-19 09:55:07 -07:00
David Oppenheimer
44b1e1ca0c Fix stylistic isues with #5547. Closes #4910. 2015-05-18 23:32:06 -07:00
Victor Marmol
a7341cfb77 Merge pull request #8386 from smarterclayton/make_kubelet_consumable 
Make it easier to reuse kubelet server code
 2015-05-18 11:26:55 -07:00
Clayton Coleman
dc0e3dd0a4 Make it easier to reuse kubelet server code 
Ensure that RunKubelet() returns errors consistently,
and make info output match Kube conventions.

Allows OpenShift to more easily reuse the Kubelet.
 2015-05-18 13:38:23 -04:00
gmarek
27d660d0ac Add a resource specifying number of Pods that are allowed to run on Kubelet. 2015-05-15 10:57:46 +02:00
Dawn Chen
309a157665 Merge pull request #7984 from cjcullen/kubelet 
Kubelet configure cbr0 instead of configure-vm.sh
 2015-05-13 17:32:52 -07:00
Victor Marmol
2aaa4e08eb Revert "Change default CgroupRoot to /." 2015-05-13 15:50:23 -07:00
Robert Bailey
c47b9178b4 Replace the auth config file with a kubeconfig file when 
starting the kubelet on GCE.
 2015-05-13 01:03:28 -07:00
CJ Cullen
31ea7d1295 Put cbr0-modifying stuff behind a flag. Address some other comments. 2015-05-12 23:00:28 -07:00
Victor Marmol
40ec627cd4 Merge pull request #8108 from rjnagal/kubelet 
Handle out of disk situation on kubelet.
 2015-05-12 15:49:31 -07:00
Rohit Jnagal
fab980598a Merge pull request #8122 from vmarmol/docker-container 
Run Docker Daemon in a Resource-only Container
 2015-05-12 13:16:05 -07:00
Rohit Jnagal
2cf0dfb79d Handle out of disk situation on kubelets. 
Kubelet will stop accepting new pods if it detects low disk space on root fs or fs holding docker images.
Running pods are not affected. low-diskspace-threshold-mb is used to configure the low diskspace threshold.
 2015-05-12 18:23:09 +00:00
Victor Marmol
e1447618f4 Integrating ContainerManager into Kubelet 2015-05-12 10:13:23 -07:00
Victor Marmol
8d304b7d1e Change default CgroupRoot to /. 
This will make all Docker containers to be top-level containers. This
will more equally share the CPU under cases of contention.
 2015-05-12 08:04:20 -07:00
deads2k
6498fc1fda remove cmd respect for auth-path 2015-05-08 16:33:33 -04:00
Yifan Gu
7e9ba26103 kubelet: Add container runtime option for rkt. 2015-05-07 23:39:37 -07:00
Victor Marmol
ecf8348609 Revert "kubelet: Add container runtime option for rkt." 2015-05-07 13:01:37 -07:00
Yifan Gu
4f6535ed8a kubelet: Add container runtime option for rkt. 2015-05-07 10:31:58 -07:00
Zach Loafman
3fcea23185 Revert "Revert "Revert "Kubelet: Add rkt as a runtime option""" 2015-05-05 15:55:12 -07:00
Zach Loafman
92ca92f43a Revert "Revert "Kubelet: Add rkt as a runtime option"" 2015-05-05 15:28:09 -07:00
Zach Loafman
6016408096 Revert "Kubelet: Add rkt as a runtime option" 2015-05-05 15:15:15 -07:00
Yu-Ju Hong
b2c0ea37b4 Merge pull request #7743 from vmarmol/runtime-switch 
Kubelet: Add rkt as a runtime option
 2015-05-05 13:36:46 -07:00
Victor Marmol
22297d316a Add rkt runtime to Kubelet init 2015-05-05 10:55:21 -07:00
Paul Morie
553265ce0c Add containerized option to kubelet binary 2015-05-05 13:10:06 -04:00
Victor Marmol
27dea5f400 Revert "Add containerized option to kubelet binary" 2015-05-04 16:34:22 -07:00
Paul Morie
ddbf9f7a28 Add containerized option to kubelet binary 2015-05-04 18:59:52 -04:00
Paul Morie
b538642464 Inject mounter into volume plugins 2015-05-04 11:28:57 -04:00
Daniel Smith
4a6ab7fd36 Merge pull request #7597 from eparis/copyright 
Use generic copyright holder name in license boilerplate
 2015-05-01 17:01:39 -07:00
Eric Paris
6b3a6e6b98 Make copyright ownership statement generic 
Instead of saying "Google Inc." (which is not always correct) say "The
Kubernetes Authors", which is generic.
 2015-05-01 17:49:56 -04:00
Victor Marmol
d9d61c3511 Kubelet: Add container runtime option. 2015-05-01 14:26:54 -07:00
Tobi Knaup
b96c4046a8 Add --cgroup_root flag to Kubelet to set the parent cgroup for all pods. 
Implements #6991.
 2015-04-30 10:32:27 -07:00
Tim Hockin
0c611370e0 Merge pull request #7281 from thockin/flag-word-separators 
Make flags accept - or _ between words
 2015-04-27 18:11:58 -07:00
Tim Hockin
a3d45fada8 Change flags to use dashes in help 2015-04-27 15:11:03 -07:00
Victor Marmol
7404b7019c Move Docker-specific log handling to DockerManager. 
Eases the separation of Docker-specific code into the Docker-specific
runtime.
 2015-04-27 13:10:10 -07:00
Satnam Singh
2444c1f943 Propagate pod and container name for log files 2015-04-22 15:08:51 -07:00
Kenjiro Nakayama
5e2e59e728 Add more help description to cert_dir flag 2015-04-20 00:35:56 +09:00
Robert Bailey
f3dd053a08 Merge pull request #6952 from mikedanese/kubelet-profiling 
add enable_profiling option to kubelet healthz port
 2015-04-17 07:42:35 -07:00
Mike Danese
7b13870b32 add profiling to kubelet 2015-04-16 23:11:40 -07:00
Robert Bailey
8aff238c5f Remove an unused function in the kubelet code. 2015-04-16 15:38:12 -07:00
Victor Marmol
fb3c351fe1 Run Kubelet on "/kubelet" container. 2015-04-14 10:29:05 -07:00
Fabio Yeon
e99141de0d Merge pull request #6729 from smarterclayton/chaosclient 
Add a new Chaos transport that can simulate network failure and add it to the kubelet
 2015-04-13 16:06:53 -07:00
Clayton Coleman
ca335d7be9 Add support for chaos to Kubelet and hack/local-up-cluster.sh 2015-04-13 18:21:20 -04:00
Xiang Li
cea38a2f4e pkg/kubelet: kill a TODO in util.go 
Move kubelet.CapabilitiesSetup to capabilities.Setup
 2015-04-11 10:55:39 -07:00
Yifan Gu
b868f421e0 kubelet: Move pod infra container image setting to dockertools. 2015-04-09 09:53:07 -07:00
Wojciech Tyczynski
37ea722b7b Set NodeStatusUpdateFrequency 2015-04-09 10:44:48 +02:00
Vishnu Kannan
2b5cad6acf Improve kubelet logging around startup. This might help detect any lockup issues during startup. 2015-04-08 21:02:15 +00:00
David Oppenheimer
d8aa57872a Change default Kubelet NodeStatusUpdateFrequency from 2s to 10s. 2015-04-07 12:36:09 -07:00
gmarek
321a81047c Move NodeController constants to flags 2015-04-07 12:33:03 +02:00
James DeFelice
d194af6b4f allow for more easily customized kubelet creation and initialization 2015-04-06 18:51:42 +00:00
Robert Bailey
4488ff95a2 Create an insecure (http) read-only port on the kubelet so that 
heapster can collect metrics. Update the heapster config to
point to the non-secured port.
 2015-04-02 10:45:49 -07:00
Robert Bailey
f15e34a1bf Revert "Merge pull request #6309 from GoogleCloudPlatform/revert-6243-kubelet-ssl" 
This reverts commit 96a0a0d618, reversing
changes made to 2af9b54147.
 2015-04-02 10:44:37 -07:00
Dawn Chen
ab1a8b1e7c Merge pull request #6298 from roberthbailey/kubelet-config 
Remove salt configuration that matches the default settings in the Kubelet.
 2015-04-01 14:31:31 -07:00
Robert Bailey
32a1c052dc Revert "Configure the kubelet to use HTTPS" 2015-04-01 13:59:31 -07:00
Robert Bailey
40ebed845f Remove salt configuration that matches the default settings in 
the Kubelet.
 2015-04-01 12:13:40 -07:00
Robert Bailey
dd9ec46cc0 Fix test-cmd to work with the kubelet listening on HTTPS. 2015-04-01 09:09:29 -07:00
Robert Bailey
d0f48b68d8 Configure the Kubelet to listen on HTTPS. If no certificates are 
provided on the command line, generate self-signed certs.
 2015-04-01 09:09:29 -07:00
Daniel Smith
acd67ebea0 Merge pull request #5535 from saad-ali/fix5327 
Make each new instance of kubelet generate a new event channel
 2015-03-30 17:05:27 -07:00
saadali
e0f71cb21f Make each new instance of kubelet generate a new event channel (instead of reusing existing). 2015-03-30 14:22:16 -07:00
Robert Bailey
bc8af553a3 Configure the kubelet to bind a simple healthz server to a localhost 
port for monitoring by monit. This is in preparation for the standard
kubelet port to switch to SSL only (and eventually to only accepting
connections on the SSL port that present a proper client SSL cert).

Also standardize the formatting of the monit config files a bit.
 2015-03-30 14:20:30 -07:00
Victor Marmol
cf7e2756b5 Add HostNetworkSources capability to limit use of HostNetwork. 2015-03-25 11:23:06 -07:00
Sreekanth Pothanis
1c06cde4c4 added cloud provider flag to kubelet 
This is to fix issue #5667
 2015-03-24 19:32:50 -07:00
Deyuan Deng
cf548765c9 Change kubelet update frequency to 2s, and make it a constant. 2015-03-24 14:23:48 -04:00
Filip Grzadkowski
632ca506ce * Update pod status only when it changes. 
* Refactor syncing logic into a separate struct
 2015-03-24 16:41:00 +01:00
Clayton Coleman
d020ca00b8 Pass hostname to all kubelet config sources instead of os.Hostname() 
Make applyDefaults be tied to the current config source.
 2015-03-23 15:58:45 -04:00
Clayton Coleman
bd12cfea69 Integration tests should do a faster status sync loop 2015-03-23 14:48:28 -04:00
Clayton Coleman
90beaa3d61 Set non-zero default HTTP/File check intervals to avoid hotloop 
cmd/integration.go was hot-looping for both, but did not need to.
 2015-03-23 00:47:39 -04:00
Tim Hockin
bfadae77e0 Promote volume plugins, prep for persistent vols 
Move pkg/kubelet/volume/... to pkg/volume/...
Some renames to make the soon-to-come persistent volumes work clearer.
 2015-03-20 13:49:40 -07:00
CJ Cullen
7ddcecfd1c Revert "Revert "[WIP] southbound networking hooks in kubelet"" 2015-03-19 16:14:13 -07:00
Zach Loafman
b5d1e538df Revert "[WIP] southbound networking hooks in kubelet" 2015-03-19 16:08:08 -07:00
Rajat Chopra
7857aa7751 kubelet networking plugin 2015-03-19 14:15:52 -07:00
Victor Marmol
cda4b6c598 Spread out pod status updates to apiserver. 
Lowers pod status interval to every 2m and spreads updates within that
time window.
 2015-03-18 15:43:07 -07:00
Victor Marmol
d78ecf820e Garbage collecting images in the Kubelet. 
Integrated the imageManager into the Kubelet and applies the garbage
collection policy every 5 minutes. The default policy allows up to 90%
disk usage, after which images are garbage collected to bring limit back
down to 80%.

Fixes #157.
 2015-03-17 17:56:02 -07:00
Victor Marmol
d1ed571e28 Use containerGC in the Kubelet. 
New policy default is 100 containers max.

Fixes #5457.
 2015-03-17 10:50:32 -07:00
Yu-Ju Hong
929fb63b33 Sync static pods from Kubelet to the API server 
Currently, API server is not aware of the static pods (manifests from
sources other than the API server, e.g. file and http) at all. This is
inconvenient since users cannot check the static pods through kubectl.
It is also sub-optimal because scheduler is unaware of the resource
consumption by these static pods on the node.

This change syncs the information back to the API server by creating a
mirror pod via API server for each static pod.

 - Kubelet creates containers for the static pod, as it would do
   normally.

 - If a mirror pod gets deleted, Kubelet will re-create one. The
   containers are sync'd to the static pods, so they will not be
   affected.

 - If a static pod gets removed from the source (e.g. manifest file
   removed from the directory), the orphaned mirror pod will be deleted.

Note that because events are associated with UID, and the mirror pod has
a different UID than the original static pod, the events will not be
shown for the mirror pod when running `kubectl describe pod
<mirror_pod>`.
 2015-03-17 08:45:56 -07:00
Victor Marmol
dc96ea6300 Run cAdvisor inside the Kubelet. 
cAdvisor is started as a Kubelet dependency during startup of the
Kubelet before the sync loops start.
 2015-03-13 16:06:02 -07:00
Dawn Chen
0cc2b62b4a Merge pull request #5265 from ddysher/kubelet-post-status 
kubelet post node status to master
 2015-03-13 15:29:22 -07:00
Eric Tune
ae9bc28f8b Remove mentions of etcd in kubelet. 2015-03-11 16:40:20 -07:00
Eric Tune
ac7bf05079 Kubelet has not even heard of etcd. 2015-03-11 16:29:31 -07:00
Deyuan Deng
9982aaa960 kubelet post node status to master 2015-03-10 23:17:36 -04:00
Eric Tune
2ca265ae3b Remove --etcd_servers flag from kubelet and proxy. 
All the distros that use this have been updated,
or have PRs out to update them, or owners
have been asked to fix RPMs.

Removing this prevents further use of this model.

Remove now dead code: EtcdClientOrDie

Remove now dead pkg/proxy/config/etcd.go.

Remove unused imports.
 2015-03-10 09:29:09 -07:00
Victor Marmol
ab3c9de34b Refactoring cAdvisor interface into a package. 
This will make it easier to start running the real cAdvisor alongside
Kubelet. This change is primarily no-op refactoring. The main behavioral
change is that we always create a cAdvisor interface and expect it to
always be available. When we make a request, if cAdvisor is not
connected the request fails with a connection error. This failure is
handled today as well.
 2015-03-09 11:19:05 -07:00
Dawn Chen
9439c0f3bd Merge pull request #5103 from yujuhong/naming 
kubelet: revamp the pod/container naming scheme
 2015-03-06 15:58:58 -08:00
Yu-Ju Hong
32fd331e73 Revert "Split up kubelet "source seen" logic" 
We want to sync pods from file/http/etcd sources to the apiserver, hence
differentiating sources is no longer desired.

This reverts commit 110ab6f1bd.
 2015-03-06 12:57:48 -08:00
Deyuan Deng
50de1a80c2 kubelet should take a client interface 2015-03-06 15:01:55 -05:00
Jordan Liggitt
02622b1401 Plumb tls and cert options into kubelet start 2015-03-05 16:30:52 -05:00
Paul Morie
02b18edac6 Allow multiple sources to be used with record package 2015-03-05 13:54:29 -05:00
Tim Hockin
9f1451121d keep hyperkube noise in one place 2015-02-20 08:49:12 -08:00
Tim Hockin
7fe7f8a542 move pkg/kubelet/server to cmd/kubelet/app 2015-02-20 08:49:12 -08:00