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1158 Commits

Author SHA1 Message Date
Jerzy Szczepkowski
c0ff504ad3 Merge pull request #5501 from jszczepkowski/kubelet-spechost 
Running resource predicate on kubelet.
 2015-03-19 21:34:27 +01:00
Dawn Chen
4910be6dcb Remove PodIP from ContainerStatus 2015-03-19 10:42:01 -07:00
Jerzy Szczepkowski
5845f6ad48 Running resource predicate on kubelet. 
Added checking on kubelet if scheduled pods do not exceed resources. Related to #5207.
 2015-03-19 10:40:10 +01:00
Dawn Chen
52e1ee9d5b Merge pull request #5619 from vmarmol/rate 
Spread out pod status updates to apiserver.
 2015-03-18 17:26:02 -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
Yifan Gu
027f6854d0 kubelet: Remove docker container in prober's interface 
Also change
kubelet.docketIDToRef[dockertools.DockerID]*api.ObjectReference{} to
kubelet.containerIDToRef[string]*api.ObjectReference{}.
 2015-03-18 14:28:27 -07:00
Yu-Ju Hong
6e8a8b741a Kubelet: simplify the lock acquring pattern 
Avoid holding both podStatusesLock and podLock at the same time.
 2015-03-18 11:45:29 -07:00
Victor Marmol
9586b39bb7 Merge pull request #5555 from fgrzadkowski/sync_pod_status 
Periodically update pod status from kubelet.
 2015-03-18 10:14:07 -07:00
Dawn Chen
9e781bc57d Merge pull request #5569 from vmarmol/image-gc 
Garbage collecting images in the Kubelet.
 2015-03-18 08:55:08 -07:00
Filip Grzadkowski
1a352b74ba Periodically update pod status from kubelet. 2015-03-18 12:11:39 +01:00
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
Yu-Ju Hong
b84de4e986 Merge pull request #5571 from vmarmol/fix 
Adding errors to Kubelet events.
 2015-03-17 16:14:58 -07:00
Dawn Chen
cbe4a1a679 Merge pull request #5510 from vmarmol/gc 
Introduce and implement container GC policy
 2015-03-17 16:02:17 -07:00
Victor Marmol
0c664a343c Adding errors to Kubelet events. 
This will help while debugging issues that generate events.

Also removed unecessary log line.
 2015-03-17 15:55:25 -07:00
Salvatore Dario Minonne
31ddefc347 Finalize fields.Selector 2015-03-17 22:55:43 +01:00
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
Filip Grzadkowski
18b728ff44 Revert "Periodically update pod status from kubelet." 2015-03-17 13:51:45 +01:00
Filip Grzadkowski
336525a27d Periodically update pod status from kubelet. 2015-03-16 23:03:03 +01:00
Victor Marmol
bdc1981eb5 Merge pull request #5433 from wojtek-t/remove_bound_pods 
Remove BoundPods from Kubelet
 2015-03-16 13:38:24 -07:00
Wojciech Tyczynski
5d95e9e671 Remove BoundPods from Kubelet 2015-03-16 19:17:21 +01:00
Jeff Lowdermilk
e37fd2a84d Merge pull request #5477 from dchen1107/clean 
Convert RestartPolicy to string for v1beta3.
 2015-03-16 10:23:52 -07:00
Dawn Chen
34e9c82c70 Convert RestartPolicy to string for v1beta3. 
Fixed #3607 and spiritually support #5475
 2015-03-13 18:38:07 -07:00
Satnam Singh
ce7658a302 Merge pull request #5445 from vmarmol/unused 
Remove unused handleUpdate() in Kubelet.
 2015-03-13 16:00:17 -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
Vish Kannan
13253d09e1 Merge pull request #5444 from vmarmol/lock 
Lock access and update to Kubelet pods.
 2015-03-13 11:06:50 -07:00
Victor Marmol
04233cdb88 Remove unused handleUpdate() in Kubelet. 2015-03-13 10:35:50 -07:00
Victor Marmol
0e485310cf Lock access and update to Kubelet pods. 2015-03-13 10:31:26 -07:00
gmarek
3489d1ae01 Refactor kubelet syncPod method 2015-03-13 18:22:42 +01:00
Victor Marmol
4675fcc57d Make ParseDockerName() return an error. 
This forces callers to handle cases where the container name could not
be parsed.
 2015-03-12 16:33:16 -07:00
Victor Marmol
51122998e3 Garbage collect unidentified Kubernetes containers. 
These containers may be caused by a change in the Kubernetes naming
convention. The old containers are killed, the new ones started, but the
old ones are never GC'd. This change makes Kubelet GC all Kubernetes
containers, old and new.

Fixes #5372.
 2015-03-12 11:40:35 -07:00
Timothy St. Clair
308bb84cf3 Minor cleanup for etcd cleaning from kubelet 2015-03-12 09:39:22 -05:00
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
Yifan Gu
241ef34fba Refactor pkg/kubelet/kubelet.go: shouldContainerBeRestarted(). 
Simplify the function signature.
 2015-03-09 17:42:57 -07:00
Victor Marmol
e187be9fe1 Merge pull request #5143 from vmarmol/cadvisor-pkg 
Refactoring Kubelet's cAdvisor interface into a package.
 2015-03-09 11:36:03 -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
Victor Marmol
ca84aae454 Kubelet: wait up to 5m for Docker to come up. 
The Kubelet assumes Docker is running during its execution and on
machine boot it is a race between Docker coming up and Kubelet calling
Docker. This PR waits for Docker to be up before the Kubelet begins
doing useful work. On timeout, Kubelet exits and expects to be
restarted.
 2015-03-09 09:50:34 -07:00
Victor Marmol
1866adddd3 Merge pull request #5157 from yifan-gu/clean_prober 
Adjust prober's logging verbose.
 2015-03-06 18:04:12 -08:00
Yifan Gu
da5d7c7814 Adjust prober's logging. 2015-03-06 17:30:29 -08:00
Victor Marmol
798513844c Merge pull request #5148 from yifan-gu/clean_prober 
Refactor pkg/kubelet/kubelet.go: probeContainer().
 2015-03-06 17:04:57 -08:00
Yifan Gu
09af0cd3b5 Refactor pkg/kubelet/kubelet.go: probeContainer(). 
Split the function into probeContainerLiveness() and probeContainerReadiness().
 2015-03-06 16:37:58 -08:00
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
fe70be9261 kubelet: revamp the pod/container naming scheme 
There are two main goals for this change.

 1. Fix the naming scheme in kubelet so that it accepts DNS subdomain
    name/namespaces correctly (#4920). The design is discussed in #3453.

 2. Prepare for syncing the static pods back to the apiserver(#4090). This
    includes

  - Eliminate the source component in the internal full pod name (#4922). Pods
    no longer need sources as they will all be sync'd via apiserver.

  - Changing the naming scheme for the static (file-, http-, and etcd-based)
    pods such that they are distinguishable when syncing back to the apiserver.

The changes includes:
  *	name = <pod.Name>-<hostname>
  * namespace = <cluster_namespace> (i.e. "default" for now).
  * container_name = k8s_<contianer_name>.<hash_of_container>_<pod_name>_<namespace>_<uid>_<random>

Note that this is not backward-compatible, meaning the kubelet won't recognize
existing running containers using the old naming scheme.
 2015-03-06 13:14:45 -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
Dawn Chen
2d0743b143 Merge pull request #5019 from yujuhong/reject_pods 
kubelet: reject pods on host port conflict
 2015-03-06 11:42:04 -08:00
Yu-Ju Hong
3ccdb8db98 kubelet: reject pods on host port conflict 
When a host port conflict is detected, kubelet should set the pod status to
fail. The failed status will then be polled by other components at a later time,
which allows replication controller to create a new pod if necessary.

To achieve this, this change stores the pod status information in a status map
upon the detecton of port conflict. GetPodStatus() consults this status map
before attempting to query docker. The entries in the status map will be removed
when the pod is no longer associated with the node.
 2015-03-06 10:46:49 -08:00
gmarek
4a01a4dbf5 Refactor Kubelets syncPod function by wrapping some functionalities into functions 2015-03-06 18:32:11 +01:00
Dawn Chen
54b2b47caa Merge pull request #4756 from vishh/kubelet 
Relax constraints on container status while fetching container logs
 2015-03-05 21:49:48 -08:00
Yifan Gu
ed1823e276 Refactor pkg/kubelet/kubelet.go: syncPod(). 
Makes the syncPod() takes only the containers that belongs to the pod.
 2015-03-05 16:40:50 -08:00
Vishnu Kannan
f6910803a9 Relax constraints on container status while fetching container logs 2015-03-06 00:19:52 +00:00
Paul Morie
02b18edac6 Allow multiple sources to be used with record package 2015-03-05 13:54:29 -05:00
Derek Carr
cb1e044a60 Merge pull request #4923 from lavalamp/fix4 
Allow reflector to do full resync periodically
 2015-03-04 09:58:03 -05:00
Victor Marmol
71e545bf81 Merge pull request #4970 from dchen1107/podstatus 
Hide POD container from end users
 2015-03-02 17:15:24 -08:00
Dawn Chen
dad365fb2b Hide POD container from end users 2015-03-02 17:03:28 -08:00
Tim Hockin
ea548b8260 Rename type Port to ContainerPort 
Sadly I had to do this by hand - I just could not get gorename to fix up
users of it.
 2015-02-27 21:05:59 -08:00
Daniel Smith
554b1c847c add occasional polling to reflector 2015-02-27 16:59:14 -08:00
Victor Marmol
c7e7ecdf2c Handle crash in per-pod thread and container killer. 2015-02-27 16:33:46 -08:00
Victor Marmol
cc3c4414f8 Merge pull request #4915 from yujuhong/hostport 
kubelet: record an event with a clear reason on host port conflict
 2015-02-27 16:04:04 -08:00
Yu-Ju Hong
241df2d3be kubelet: record an event with a clear reason on host port conflict 
Currently, kubelet silently ignores pods that caused host port conflict. This
commit surfaces the error by recording an event.

It also makes sure that kubelet iterates through the pods in the order of the
creation timestamp, which ensures that pods created later are ignored on
conflict.
 2015-02-27 15:51:53 -08:00
Victor Marmol
556acc792b Adding ContainersPerPodCount metric. 
This will let us know the composition of pods in clusters.
 2015-02-27 11:27:09 -08:00
Victor Marmol
a9301b1996 Adding metric for latency of SyncPods (synching all pods). 2015-02-27 11:11:43 -08:00
Victor Marmol
cbf93822ac Adding metrics to measure latency of Docker operations. 
Part of #4604.
 2015-02-27 10:26:06 -08:00
Victor Marmol
ed0f5885b5 Adding sync pod latency metric (again). 
Latency is broken down by create, update, and sync pods.

Part of #4604.
 2015-02-27 09:35:20 -08:00
Wojciech Tyczynski
a973f57d6b Thread per pod 2015-02-27 13:27:29 +01:00
Sami Wagiaalla
9150cb9d95 Catch kubelet-master hostname mismatch during health check 
During the kubelet's /healthz responce check to see if the
hostname used by the master matches the hostname the kubelet
knows itself by. If not fail the health check.

Signed-off-by: Sami Wagiaalla <swagiaal@redhat.com>
 2015-02-26 10:22:03 -05:00
Vish Kannan
e3af23e6e9 Merge pull request #4792 from vmarmol/mon-containers-per-pod 
Add Kubelet metrics for pod and container counts.
 2015-02-25 18:51:22 -08:00
Victor Marmol
95464349d5 Add Kubelet metrics for pod and container counts. 
Part of #4604.
 2015-02-25 12:18:59 -08:00
Daniel Smith
ec8ecf3993 Merge pull request #4494 from brendandburns/race 
Add protection for the pods member varaible.
 2015-02-25 10:41:32 -08:00
Brendan Burns
801ad909ca Add protection for the pods member varaible. 
Address comments.
 2015-02-24 19:36:11 -08:00
Vish Kannan
0b15f2ff65 Merge pull request #4784 from vmarmol/pod-restart 
Kill infra pod when a container is restarted.
 2015-02-24 13:37:08 -08:00
Vish Kannan
c561c8b0b1 Merge pull request #4753 from vmarmol/mon 
First Kubelet metric and overall plumbing.
 2015-02-24 12:51:34 -08:00
Victor Marmol
aadbf221d2 Kill infra pod when a container is restarted. 
Revert 0e20f7d736.
Fixes #4759.
 2015-02-24 11:52:05 -08:00
Rohit Jnagal
e77322a561 Merge pull request #4755 from yifan-gu/cleanup 
pkg/kubelet: Fix logging.
 2015-02-24 10:12:02 -08:00
Rohit Jnagal
590a62ffe5 Merge pull request #4767 from mikedanese/kind-to-type 
Rename {Node,Pod}ConditionKind -> {Node,Pod}ConditionType
 2015-02-24 10:10:57 -08:00
Yifan Gu
1a5a842ac5 pkg/kubelet: Fix logging. 2015-02-24 09:47:10 -08:00
Wojciech Tyczynski
dcef5e2955 Introduce DockerCache in Kubelet. 2015-02-24 09:10:07 +01:00
Mike Danese
5267127af1 api: rename conditionkind -> conditiontype 2015-02-23 22:13:21 -08:00
Victor Marmol
c40a60e945 Adding image pull latency metric. 
Also adding TODOs for other metrics.

Part of #4604.
 2015-02-23 16:30:29 -08:00
Rohit Jnagal
50700419ea Merge pull request #4732 from yifan-gu/cleanup 
Remove outdated const.
 2015-02-23 16:06:32 -08:00
Victor Marmol
a6d975c929 Remove pullLock from Kubelet. 
The lock was only ever used to grab a read lock before container pulls.
 2015-02-23 13:27:55 -08:00
Yifan Gu
a631252abf Remove outdated const. 2015-02-23 11:00:38 -08:00
Victor Marmol
da2f4b6d61 Check Docker init PID is valid before we use it. 
This gives us an error if the PID is not returned as we expect.
 2015-02-20 13:10:40 -08:00
Andy Goldstein
5bd0e9ab05 Add streaming command execution & port forwarding 
Add streaming command execution & port forwarding via HTTP connection
upgrades (currently using SPDY).
 2015-02-20 09:57:02 -05:00
Dawn Chen
efac150039 Merge pull request #4563 from xiang90/syncpod 
pkg/kubelet: recreate infra pod if the pod is changed
 2015-02-20 00:29:26 -08:00
Dawn Chen
530c1559e1 Merge pull request #4647 from vmarmol/ooms 
Make POD container last OOM victim
 2015-02-20 00:25:52 -08:00
Victor Marmol
8649628c6c Make POD container last OOM victim. 
Setting the oom_score_adj of the PID of the POD container to -100 which is less
than the default of 0. This ensures that this PID is the last OOM victim
chosen by the kernel.

Fixes #3067.
 2015-02-19 19:24:01 -08:00
Daniel Smith
b7b537efc7 fix confusing defer 2015-02-19 17:11:32 -08:00
Victor Marmol
40cb417901 Merge pull request #4531 from wojtek-t/batch_requests_in_kubelet 
Batch updates of multiple Pods.
 2015-02-19 10:50:26 -08:00
Jerzy Szczepkowski
d614fc7fcc Fire event for pod when mount fails. 
Implemented firing event for pod when mount of external volume fails. Fixes #4540.
 2015-02-19 11:08:36 +01:00
Wojciech Tyczynski
702ad7732f Applied comments 2015-02-19 08:01:16 +01:00
Xiang Li
0e20f7d736 pkg/kubelet: recreate infra pod if the pod is changed 2015-02-18 15:05:16 -08:00
Wojciech Tyczynski
25c8f07c67 Batch updates of multiple Pods. 2015-02-18 16:46:16 +01:00
Dawn Chen
bafa240187 Add debugging information for #4472 2015-02-17 13:28:15 -08:00
Clayton Coleman
4859aa7cd8 Merge pull request #4453 from derekwaynecarr/make_quota_more_efficient 
Make ListWatch work with a ListFunc and WatchFunc
 2015-02-17 14:48:11 -05:00
Xiang Li
042dc1faa3 pkg/kubelet: uncaptialize error message 2015-02-16 09:33:20 -08:00
Xiang Li
2437e94248 pkg/kubelet: fix wrong code path in runContainer 2015-02-16 09:32:37 -08:00
derekwaynecarr
c0ce15c588 Make list watch take a ListFunc and WatchFunc, provide default funcs from client 2015-02-15 22:26:05 -05:00
Dawn Chen
20dc1c2481 Merge pull request #4410 from brendandburns/fixer 
Don't delete the pod infrastructure container on health check failures.
 2015-02-13 15:18:27 -08:00
Victor Marmol
5d6ad845cc Use Docker name (not ID) to parse Kubernetes components. 
Since the parsing function doesn't return an error all the components
returned empty strings. This caused us to enforce the MaxContainerLimit
as a global limit instead of a per-container limit.

Fixes #4413.
 2015-02-13 13:08:15 -08:00
Brendan Burns
4ad3ea438d Revert "Revert "Add an event for health check failures."" 
This reverts commit fc4e711a8c.
 2015-02-13 09:23:13 -08:00
Saad Ali
fc4e711a8c Revert "Add an event for health check failures." 2015-02-13 08:10:45 -08:00
Saad Ali
c112f8f1bb Merge pull request #4408 from brendandburns/printing 
Add an event for health check failures.
 2015-02-13 07:59:26 -08:00
Brendan Burns
5e49a606e1 Address changes. 2015-02-12 21:39:42 -08:00
Brendan Burns
8b7dfc9359 Return logs for failed and succeeded pods too. 2015-02-12 21:36:25 -08:00
Brendan Burns
4dbf98e98f Don't delete the pod infrastructure container on health check failures. 2015-02-12 21:28:32 -08:00
Brendan Burns
c03a435501 Add an event for health check failures. 2015-02-12 19:08:23 -08:00
Eric Tune
dd8f335380 Merge pull request #4376 from dchen1107/podstatus 
Fix podstatus issue caused by docker's resource temporarily unavailable issue
 2015-02-12 13:16:09 -08:00
Dawn Chen
af54c62766 Fix podstatus issue caused by docker's resource temporarily unavailable error 2015-02-11 23:52:58 -08:00
Vishnu Kannan
922881fcd2 Improve error handling for '/containerLogs' API in kubelet. 2015-02-12 02:22:26 +00:00
Dawn Chen
f5f2b6f773 Check if kubelet does know such Pod before querying status. 2015-02-11 10:16:04 -08:00
Mike Danese
3d0cd81feb refactor pkg/probe ProbeRunners to interfaces and move global probers into kubelet field for testability 2015-02-10 08:30:11 -08:00
Mike Danese
043794492e implement readiness. 2015-02-10 08:30:09 -08:00
Brian Grant
175e9caa55 Merge pull request #4194 from dchen1107/podstatus 
Kubelet decides podStatus
 2015-02-05 17:18:39 -08:00
Mike Danese
14bfec92f2 rename probe.Status to probe.Result. 2015-02-05 15:49:58 -08:00
Dawn Chen
f762e062f2 Kubelet decides podStatus 2015-02-05 15:49:41 -08:00
Brendan Burns
8e6f5c7201 Merge pull request #3593 from commonlisp/master 
Add timeouts to HealthChecks and retry checks
 2015-02-05 15:40:22 -08:00
Brendan Burns
8b25b43039 Merge pull request #4117 from wojtek-t/validate_docker_version 
Check Docker version in Kubelet /healthz handler
 2015-02-05 10:06:33 -08:00
George Kuan
e8c33b7916 Add timeouts to HealthChecks and retry checks 
Fixes issue #3532. Added timeouts for HTTP and TCP checks
and enabled kubelet/probe to kubelet#maxRetries times
before declaring Failure.

Added Probe.TimeoutSecs to API

Probe variants now check container.LivenessProbe.TimeoutSeconds
Also added a test for timeouts in http_test.go.
 2015-02-05 06:04:45 -08:00
Brendan Burns
cfe5b14114 Wait until containers actually finish running before trying to clean up 
volumes or pods.
 2015-02-04 17:28:41 -08:00
Wojciech Tyczynski
ead67108ce Use existing method to get Docker version. 2015-02-04 20:50:21 +01:00
Wojciech Tyczynski
78f66a6ce9 Check Docker version in Kubelet /healthz handler 2015-02-04 18:31:24 +01:00
chakri
9508b2bf12 Fix orphaned pod & volume cleanup order. Volumes need to be unmounted before pod cleanup. 2015-02-04 01:46:28 +00:00
Vishnu Kannan
5e36f63f8b Adding ResourceRequirementSpec to v1beta1, v1beta2, and v1beta3 APIs. The old resource 
quantities 'CPU' and 'Memory' will be preserved until support for v1beta1 and v1beta2 APIs are
dropped.
Improved resource validation in the process.
 2015-02-01 02:19:55 +00:00
Clayton Coleman
556e59b512 Merge pull request #3810 from ironcladlou/cache-namespacing 
Support namespacing in cache.Store
 2015-01-30 13:19:41 -05:00
Ye Yin
248624fc1f Add docker's add/drop capabilites 2015-01-30 15:09:31 +08:00
Dan Mace
5ee943d683 Support namespacing in cache.Store implementations 
Support namespacing in cache.Store by framing the interface functions
around interface{} and providing a key function to each Store implementation.

Implementation of a fix for #2294.
 2015-01-29 17:39:49 -05:00
Mrunal Patel
19e0605f5b Replace "net" by "pod infra" in docs and format strings. 2015-01-28 15:03:06 -08:00
Tim Hockin
c8f61885df Merge pull request #3695 from mikedanese/ready 
refactor pkg/health into more reusable pkg/probe
 2015-01-28 11:00:32 -08:00
Paul Morie
962bdda0dc Fix typo in kubelet 2015-01-28 12:00:53 -05:00
Mike Danese
5dc6362f8a rename probe.Healthy to probe.Success and renam probe.Unhealthy to probe.Failure. 2015-01-27 11:20:30 -08:00
Mike Danese
a298402bd4 remove pkg/health and move everything over to pkg/probe 2015-01-27 11:20:30 -08:00
Mrunal Patel
b6a0ff1003 IP: Shared IPC. 2015-01-27 09:26:36 -08:00
Brian Grant
dd45246150 Merge pull request #3587 from dchen1107/image 
Clean up Kubernetes PullPolicy
 2015-01-20 17:18:26 -08:00
Dawn Chen
2299c04cea Remove image GC. 
Fix #3617,#3611, and #3393.
 2015-01-20 13:43:08 -08:00
Dawn Chen
3101a33d32 Kubelet stop using api/helper.go for PullPolicy 2015-01-20 11:54:22 -08:00
Tim Hockin
6cb275829f Implement volumes as plugins. 
Break up the monolithic volumes code in kubelet into very small individual
modules with a well-defined interface.  Move them all into their own packages
and beef up testing along the way.
 2015-01-20 11:45:45 -08:00
Brendan Burns
d54242a649 Merge pull request #3552 from commonlisp/master 
Replace kubelet logging %s--%s--%s with dockertools.BuildDockerName()
 2015-01-16 14:31:43 -08:00
Eric Tune
98bdd3f7c4 Test for and fix crash with nil client in kubelet. 
Added test that fails before fix.
Fixed use of nil pointer.
 2015-01-16 13:39:31 -08:00
Brendan Burns
e86c8f9e53 Merge pull request #3565 from dchen1107/podstatus 
Introduce PodStatusResult, and deprecate PodContainerInfo.
 2015-01-16 12:05:07 -08:00
Dawn Chen
15e9fa8a9d Introduce PodStatusResult, and deprecate PodContainerInfo. 2015-01-16 09:10:40 -08:00
George Kuan
af4bbd1a1b Replace kubelet logging %s--%s--%s with dockertools.BuildDockerName() 
Fixes issue #3454
 2015-01-15 19:47:54 -08:00
Daniel Smith
46f8a56dba Merge pull request #3376 from erictune/channel_api 
Kublet watches Pods.
 2015-01-15 14:48:12 -08:00
Eric Tune
b759f67ee3 Kublet watches Pods. 
Added a kubelet config source for watching pods on apiserver.
The pods are converted to boundpods for merging with other
config sources.

The preferred way to create a kubelet is now to pass an apiserver
client but not an etcd client.  Changed cmd/integration to use
apiserver to talk to kubelets.  And cmd/kubernetes.

Unit, integration, and e2e tests pass, except for a failure of the pd
e2e test which was unrelated.
 2015-01-14 15:31:26 -08:00
Tim Hockin
1be3de895c Move util.UID to pkg/types 2015-01-14 15:22:21 -08:00
Daniel Smith
c13ae34b02 Merge pull request #3445 from saad-ali/fix3172 
Remove CONDITION from event object completely
 2015-01-14 15:03:06 -08:00
Eric Tune
88c68e0349 Merge pull request #3331 from pmorie/services 
Service visibility w/in namespaces, master services, set env vars in kubelet
 2015-01-14 15:01:05 -08:00
saadali
90dfdcecd5 Remove CONDITION from event object completely 
# *** ERROR: *** Some files have not been gofmt'd.  To fix these
# errors, run gofmt -s -w <file>, or cut and paste the following:
#   gofmt -s -w pkg/kubecfg/resource_printer.go pkg/proxy/config/config.go pkg/runtime/types.go
#
# Your commit will be aborted unless you override this warning. To
# commit in spite of these format errors, delete the following line:
#   COMMIT_BLOCKED_ON_GOFMT
 2015-01-14 14:17:16 -08:00
Paul Morie
fd834ae84d Pods should see services only from their own ns 2015-01-14 17:06:36 -05:00
Tim Hockin
e86d4cd3c6 Use a strong type for UID fields 2015-01-14 13:53:43 -08:00
Tim Hockin
ca89aa6528 Make data dirs for all pods when syncing 2015-01-13 17:18:21 -08:00
saadali
110ab6f1bd Split up kubelet "source seen" logic 2015-01-12 21:48:55 -08:00
Tim Hockin
905514a12b Ensure Namespace and UID are set in kubelet 
Make all kubelet config sources ensure that UID and Namespace are defaulted, if
need be.

We can *almost* disable the "if blank" logic for UID, except for tests that
call APIs that do not run through SyncPods.  We really ought to be enforcing
invariants better.
 2015-01-12 14:27:34 -08:00
Tim Hockin
af0e2fd551 Merge pull request #3403 from thockin/klet-dirs-structure 
Apply more structure to pod data dirs
 2015-01-12 14:19:22 -08:00
saadali
e1917cf900 Fix "Kubelet doesn't kill old pods when BoundPods is empty" issue 2015-01-12 12:39:47 -08:00
Tim Hockin
523a80bec7 Apply more structure to pod data dirs 
This is makes it possible to read back "known" pods from disk without
getting other (non-pod) kubelet dirs in the mix.  Ditto for containers
within a pod.  This is just saner overall.  Pods now nest in a pods/
dir.  Likewise containers.
 2015-01-12 06:16:32 -08:00
Eric Tune
29d084c4d3 Pass client into Kubelet. 
Subsequent PR will make use of it.
 2015-01-08 15:35:17 -08:00
Tim Hockin
eac982137f Merge pull request #3260 from commonlisp/master 
NewMainKubelet validates SyncFrequency, minimum GC age, etc.
 2015-01-08 08:20:55 -08:00
George Kuan
06475fc4b4 NewMainKubelet validates Kubelet config parameters 
Fixes issue #3202.
* Validates SyncFrequency and minimum GC age and propagates error to RunKubelet
* Defaults for Kubelet config and minor cleanup
* cmd Kubelet MinimumGCAge to 1m instead of 0
 2015-01-07 18:50:53 -08:00
Daniel Smith
95dd2d7ca6 reuse function; never ever unlock without defer 2015-01-07 17:07:12 -08:00
Tim Hockin
5f2dae4dd8 Merge pull request #3195 from lavalamp/numericWire 
Add numeric type into api
 2015-01-07 16:15:52 -08:00
Daniel Smith
7f49ba0dcf Put quantity into packages 
kubelet, GCE, validation, client
 2015-01-07 15:21:34 -08:00
Clayton Coleman
ba53d723d3 Clean up how client is passed to Kubelet in preparation for reading pods 
Also fixes how Kubelet server looks up pods by name when there are multiple
sources.
 2015-01-07 14:40:37 -05:00
Brendan Burns
7c69570663 Add a lock around the other docker pull. 
Fixes e2e (I hope), certainly passes e2e in my client.
 2015-01-07 00:17:57 -08:00
Brendan Burns
733e12e19b Revert "Avoid race between image pull and garbage collect" 
This reverts commit 6f14e2e210.
 2015-01-06 23:23:23 -08:00
Brendan Burns
e84b4d03a4 Merge pull request #3183 from anguslees/pull-lock 
Avoid race between image pull and garbage collect
 2015-01-06 21:23:29 -08:00
saadali
d6d18a32e7 Replace %s with %q to make empty strings more obvious 2015-01-05 16:38:47 -08:00
saadali
eb831919d9 Improve kubelet logging around container being killed due to hash change 2015-01-05 16:20:40 -08:00
Angus Lees
6f14e2e210 Avoid race between image pull and garbage collect 
Hold the pullLock while pulling regular container images, not just the
network container.

Also: previously, the locks were grabbed at too-low a layer in the
callstack, leaving a (narrow) window where images could be pulled and
then garbage collected before being used.

This change takes the existing pullLock a layer higher in the call stack
so the critical regions encompass the entire find+delete and pull+use
operation in both cases.
 2014-12-31 11:50:40 +11:00
saadali
e8d30f019d Modify "kubectl get events" to print FieldPath so BoundPod events for the same Pod but different containers can be differentiated 2014-12-29 21:32:49 -08:00
Dawn Chen
d38613777b Propagate syncPod error as event to upper layer. 2014-12-29 15:42:47 -08:00
Tim Hockin
652479a3b1 Add kubelet DNS flags & api disable for DNS 
This adds --cluster_dns and --cluster_domain flags to kubelet.  If
non-empty, kubelet will set docker --dns and --dns-search flags based on
these.  It uses the cluster DNS and appends the hosts's DNS servers.
Likewise for DNS search domains.

This also adds API support to bypass cluster DNS entirely, needed to
bootstrap DNS.
 2014-12-29 09:18:12 -08:00
Brendan Burns
b8781c04bb Add support for garbage collecting images. 2014-12-22 16:56:58 -08:00
Vish Kannan
c34f2d354c Merge pull request #3035 from dchen1107/master 
Update fsouza/go-dockerclient pkg to latest revision and fix some compiling issues.
 2014-12-18 14:07:40 -08:00
Dawn Chen
608c3d5046 Update kubelet package on latest go-dockerclient package. 2014-12-18 13:49:13 -08:00
Brendan Burns
845fb5013d Remove some dead code. 2014-12-18 13:32:20 -08:00
Brendan Burns
7da0378f3c Track the sources that the kubelet has seen, and only delete pods 
when every source has been seen at least once.
 2014-12-17 13:08:43 -08:00
Clayton Coleman
dadb8431c4 Remove internal PodState in favor of internal PodStatus object 2014-12-15 16:50:05 -05:00
Daniel Smith
e46bfcf699 Allow, when testing, SelfLinks to be unset. Kubelet now makes events in tests. 2014-12-09 17:53:42 -08:00
Daniel Smith
ba62943b8e Compare containers by name, not by pointer equality. 2014-12-09 17:06:39 -08:00
Tim Hockin
acc6b95c21 Add functions to get kubelet directories. 
Gets rid of some magic constants and makes volume plugins (coming later)
cleaner.
 2014-12-06 11:00:19 -08:00
Tim Hockin
95a9098311 fix 'go vet' warnings 2014-11-21 09:45:28 +08:00
Tim Hockin
ea960711ff Clean up error logs. 
Use %v for errors, tidy some messages, make error messages start lowe-case
(as per go guidelines).  Just accumulated nits.
 2014-11-21 09:45:26 +08:00
Dawn Chen
6d3324c3fd Add image related events to kubelet. 2014-11-19 15:16:14 -08:00
Eric Tune
0ca192889f Fix namespace of minion birthcry event. 2014-11-17 15:34:07 -08:00
Daniel Smith
eeb4547bec Merge pull request #2392 from dchen1107/upstream1 
Generate container related events from kublet
 2014-11-17 11:28:52 -08:00
Dawn Chen
736c4ffb0b more events from kublet 2014-11-17 11:00:46 -08:00
Dawn Chen
8a508bcce3 Merge pull request #2391 from lavalamp/fix3 
Remove confusing function; add TODO and explanation for (nonfatal) error...
 2014-11-14 17:24:18 -08:00
Daniel Smith
c412540cf2 Remove confusing function; add TODO and explanation for (nonfatal) error message in integration test. 2014-11-14 17:16:05 -08:00
Dawn Chen
f729d748ac If the image with :latest tag specified in Spec, kubelet should try 
to pull the latest one even the policy is PullIfNotPresent.
 2014-11-14 16:09:53 -08:00
Dawn Chen
ada43ae233 Fixed Eventf with wrong arguments. 2014-11-10 23:53:48 -08:00
Eric Tune
08c8f2cde1 Record event of kubelet restart re: minion obj. 2014-11-10 13:46:48 -08:00
Dawn Chen
57454cce81 Add support to capture application termination message and propagate 
the message to the upper layer through ContainerStatus.
 2014-11-10 10:56:23 -08:00
Dawn Chen
e88e490614 Merge pull request #2143 from lavalamp/eventing2.1 
Begin putting event emission into kubelet
 2014-11-05 15:37:26 -08:00
Brendan Burns
0a1493a5ce Merge pull request #2160 from dchen1107/fix 
Restart network container when container's configure is changed.
 2014-11-05 15:13:05 -08:00
Daniel Smith
dcc111bf13 Start putting event generation into kubelet (not enabled yet) 2014-11-05 15:09:14 -08:00
Daniel Smith
4b16e979e6 Fix nil docker client (how did this ever work???) 2014-11-04 16:58:37 -08:00
Dawn Chen
03958f5049 Restart network container when container's configure is changed. 
Fix #2099
 2014-11-04 14:38:33 -08:00
Brendan Burns
69ad5c9bff Merge pull request #2077 from dchen1107/cleanup 
PodUpdate only has the delta changes, not full snapshot of all desired
 2014-10-30 21:46:26 -07:00
Dawn Chen
a1e79048a6 Add /podSpecs to Kubelet 2014-10-30 16:38:08 -07:00
Dawn Chen
445ec719c9 PodUpdate only has the delta changes, not full snapshot of all desired 
BoundPods on a node. PR #1865 has a wrong assumption, with which any
PodUpdate operation will cause rest of running containers without updates
are killed as an unexpected ones.

Fix #2028
 2014-10-30 11:22:59 -07:00
Brendan Burns
51bf451932 Add container garbage collection. 2014-10-28 12:52:06 -07:00
Tim Hockin
0a202354b9 Fix race between syncPod and syncPods 2014-10-23 15:53:26 -07:00
Tim Hockin
099934d49f Cleanups in syncPod 2014-10-23 15:53:26 -07:00
Tim Hockin
76c33a88b6 Remove redundancy in SyncPods 2014-10-23 15:53:26 -07:00
Tim Hockin
36a05ee871 Improve kubelet logging 2014-10-23 15:53:26 -07:00
Tim Hockin
487867bd01 Extract cadvisor code to cadvisor.go 2014-10-23 15:53:26 -07:00
Tim Hockin
de3060e4eb Rename httpGetInterface to httpGetter 2014-10-23 15:53:26 -07:00
Clayton Coleman
bb77a5d15f Rename ID -> Name 2014-10-22 15:00:26 -04:00
Brendan Burns
aa55e87ac2 Support updates in the kubelet. 2014-10-17 11:02:21 -07:00
Clayton Coleman
892942af8f Read BoundPods from etcd instead of ContainerManifestList 
There are three values that uniquely identify a pod on a host -
the configuration source (etcd, file, http), the pod name, and the
pod namespace. This change ensures that configuration properly
makes those names unique by changing podFullName to contain both
name (currently ID in v1beta1, Name in v1beta3) and namespace.

The Kubelet does not properly handle information requests for
pods not in the default namespace at this time.
 2014-10-16 19:29:08 -04:00
Dawn Chen
5f97413dd5 Merge pull request #1663 from smarterclayton/separate_pod_state_for_health_check 
Refactor HealthCheck to take podUUID as its own argument
 2014-10-10 09:11:59 -07:00
Daniel Smith
7bb1bdd693 Merge pull request #1711 from erictune/vets 
Use pointer for struct holding lock.
 2014-10-09 17:25:54 -07:00
Eric Tune
42f6324183 Use pointer for struct holding lock. 2014-10-09 17:16:21 -07:00
Clayton Coleman
95cb2e3eb3 Refactor HealthCheck to take podUUID arguments 
PodState is going away (won't have podUUID anymore)
 2014-10-09 16:42:55 -04:00
Daniel Smith
1fc92bef53 Load cadvisor connection in background. 2014-10-08 17:06:41 -07:00
Dawn Chen
73c8f41737 Add the missing arg in Errorf. 2014-10-07 13:53:25 -07:00
Brendan Burns
7ecd8d7207 Fix a problem with for loops, copy semantics and async routines. 2014-10-06 21:20:00 -07:00
Dawn Chen
4fdfeaa30e Addressed comments. 2014-10-06 14:41:20 -07:00
Dawn Chen
9861eb7c8e Initial support of propogating the termination reasons and image failure 
to apiserver. Deprecated docker.Container from API completely.

Conflicts:
	pkg/api/types.go
	pkg/kubelet/kubelet.go
 2014-10-06 13:37:22 -07:00
Johan Euphrosine
f91162cf78 kubelet: add --runonce flag, exits after starting pod from the manifest 2014-10-03 18:02:30 -07:00
Deyuan Deng
a9e7cf8e40 Fix integration test read volume dir error. 2014-10-03 19:51:07 -04:00
Clayton Coleman
6881db64a9 Allow configurable Kubelet net image for isolated networks 
Public access to the DockerHub is not guaranteed in all environments,
add a flag to the kubelet that allows it to use a different image (like
one on a private registry) as well as only pull the first time the
image is needed.

Fixes #1545
 2014-10-02 15:56:03 -04:00
Tim Hockin
db49dc0012 Merge pull request #1458 from brendandburns/dontpull 
Add the ability to turn off image pulling.
 2014-10-01 12:40:47 -07:00
Brendan Burns
4c456015b6 Add the ability to turn off image pulling. 2014-10-01 12:34:22 -07:00
jhadvig
9b21053188 ListContainer filter 2014-09-30 23:30:32 +02:00
Tim Hockin
04cdf286a4 Make and use api.Protocol type 2014-09-27 20:31:37 -07:00
Tim Hockin
badeaef95f Merge pull request #1457 from brendandburns/pull 
Add a rate limiter, use it to rate limit docker pulls.
 2014-09-26 12:39:25 -07:00
Brendan Burns
3ac706a32e Add a rate limiter, use it to rate limit docker pulls. 2014-09-26 11:55:21 -07:00
Tim Hockin
7a96ed38b3 Merge pull request #1439 from jhadvig/err_handler 
Handle invalid pod name
 2014-09-25 15:00:47 -07:00
jhadvig
e5d8ee3811 Handle invalid pod name 2014-09-25 22:57:05 +02:00
Clayton Coleman
4e56dafecc Introduce some default log verbosity control 
Move a lot of common error logging into better buckets:

glog.Errorf() - Always an error
glog.Warningf() - Something unexpected, but probably not an error
glog.V(0) - Generally useful for this to ALWAYS be visible
            to an operator
            * Programmer errors
            * Logging extra info about a panic
            * CLI argument handling
glog.V(1) - A reasonable default log level if you don't want
            verbosity
            * Information about config (listening on X, watching Y)
            * Errors that repeat frequently that relate to conditions
              that can be corrected (pod detected as unhealthy)
glog.V(2) - Useful steady state information about the service
            * Logging HTTP requests and their exit code
            * System state changing (killing pod)
            * Controller state change events (starting pods)
            * Scheduler log messages
glog.V(3) - Extended information about changes
            * More info about system state changes
glog.V(4) - Debug level verbosity (for now)
            * Logging in particularly thorny parts of code where
              you may want to come back later and check it
 2014-09-25 16:30:14 -04:00
Clayton Coleman
a5ed10235e Merge pull request #1354 from lavalamp/eventing 
Add Event to api types
 2014-09-25 16:20:49 -04:00
Daniel Smith
283eaf3931 Add new Event type 
* replaces previous Event type, which is too limited.
* Remove writing of old event type.
* Fix serialiazation test to automatically test all types.
 2014-09-25 11:31:35 -07:00
Brendan Burns
431caa93df Merge pull request #1335 from dchen1107/exit1 
Convert existing kubernetes system to use ContainerStatus, instead of
 2014-09-24 21:37:24 -07:00
Daniel Smith
bb0cd95a83 fix non-gofmt'd things 2014-09-24 14:27:10 -07:00
Dawn Chen
0e6ec3cbfc Convert existing kubernetes system to use ContainerStatus, instead of 
docker.Container directly.

Conflicts:
	pkg/kubelet/dockertools/docker.go
	pkg/registry/pod/rest.go
 2014-09-24 11:16:46 -07:00
Tim Hockin
0f9cd4301d Merge pull request #1401 from jhadvig/k8s_log_retrieval_update 
stdout/stderr writer container log stream
 2014-09-22 16:38:11 -07:00
jhadvig
9ba71528e4 stdout/stderr container log stream 2014-09-23 00:15:36 +02:00
Tim Hockin
486dbd165f Merge pull request #1318 from jhadvig/k8s_log_retrieval 
Adding endpoint for log retrieval on the minion
 2014-09-22 13:21:28 -07:00
Eric Paris
a32400f47f Remove all code dealing with cadvisor Percentiles 
This was removed upstream beween cadvisor 0.3.0 and 0.4.0
 2014-09-22 14:22:40 -04:00
jhadvig
f3f5d0200c Using podID+containerName for querying the logs 2014-09-17 21:00:09 +02:00
Brendan Burns
dc5a4a8c3f Refactor to clean up names. 2014-09-16 15:19:02 -07:00
Brendan Burns
5b9e2a55b5 Add a flag to reject privileged containers in the apiserver. 2014-09-16 11:22:32 -07:00
jhadvig
f351691493 Adding endpoint for log retrieval on the minion 2014-09-15 17:02:56 +02:00
Brendan Burns
46d0cbd645 Add a global flag to enable/disable privileged containers 2014-09-12 09:56:45 -07:00
Dan Mace
3a3fab3f82 FEATURE: Support privileged containers in a pod 
Add a Privileged field to containers in a pod, in order to facilitate pods
performing administrative tasks such as builds via Docker-in-Docker.

Discussion: https://github.com/GoogleCloudPlatform/kubernetes/issues/391
 2014-09-12 09:38:11 -07:00
Brian Waldon
0bf4fabc19 kubelet: move docker-related code into sub-package 2014-09-11 13:12:28 -07:00
Dawn Chen
15cab4d053 Introduce the simplest RestartPolicy and handling. 2014-09-08 22:41:38 -07:00
Dawn Chen
7ace5a3e83 Passing pod UUID to Kubelet. 2014-09-08 14:24:09 -07:00
Brendan Burns
d0884accd7 Add support for the PostStart event handler. 2014-09-05 12:37:57 -07:00
Daniel Smith
099c8fd36f Propagate rename; tests pass again. 2014-09-02 10:42:06 -07:00
Daniel Smith
97b05619f1 Remove deprecated bits from kubelet 2014-08-26 22:39:00 -07:00
Brendan Burns
4f1fa939f7 Switch the hostname in a container to be the pod id. 2014-08-26 11:13:53 -07:00
Vishnu Kannan
2b61831c22 Improve kubelet logging - log the docker container image name when docker pull fails. 2014-08-20 10:30:42 -07:00
Dawn Chen
5a2365b323 Fix #926 
Make HostPort a real option without being set to ContainerPort if absent.
 2014-08-19 15:44:50 -07:00
Brendan Burns
0caae9c1d4 Add a in container exec based health check. 2014-08-18 12:00:11 -07:00
Brendan Burns
2986db9885 Add container hashing to the container name, and restart containers on changes. 2014-08-08 13:32:07 -07:00
Daniel Smith
2297bf8cea Merge pull request #830 from brendandburns/net 
Delete containers for a pod if we have to create the network container.
 2014-08-08 13:12:42 -07:00
Brendan Burns
38900a9c58 Delete containers for a pod if we have to create the network container. 2014-08-08 12:34:59 -07:00
Victor Marmol
adc57da3f3 Merge pull request #825 from brendandburns/runin 
Add support for "run in"
 2014-08-07 23:47:19 -07:00
Brendan Burns
d31d0781b2 Add support for "run in" 2014-08-07 20:27:58 -07:00
Clayton Coleman
d7f46718a8 Kubelet should have a max think time before auto resync 
The sync frequency should be part of the syncLoop and resync no
less often than every X seconds.  The current implementation runs
even if a config update was delivered less than X seconds ago.
 2014-08-07 10:40:03 -04:00
Danny Jones
7c28e0849f Reorganization; Directory traversal less ugly 
Directory traversal is no longer recursive and only goes as deep as it
needs to. Moved GetActiveVolumes to volume packages and added a simple
test.
 2014-08-06 11:20:34 -07:00
Danny Jones
3f7f6cb2dc Modifies tests to use new volume objects. 2014-08-06 10:21:59 -07:00
Danny Jones
6191ffc0de Modifies directory walker to use a regex 
Now a regex is used to determine active volume properties from
their directory paths.
 2014-08-06 10:21:59 -07:00
Danny Jones
47bca30edc Splits volume interface into Builders and Cleaners 
Different information is needed to perform setup versus teardown. It
makes sense to separate these two interfaces since when we call teardown
from the reconciliation loop, we cannot rely on having the
information provided by the api definition of the volume.
 2014-08-06 10:21:59 -07:00
Danny Jones
dfc9cb86f0 Initial reconciliation loop. 
Determines the set of active volumes versus the set of valid volumes
defined by the manifests. If there is an active volume that is not
defined in any of the manifests, deletes and cleans up that volume.
 2014-08-06 10:21:59 -07:00
Brendan Burns
490bb28bf9 Add TCP socket based health checking. 2014-08-01 14:13:56 -07:00
Dawn Chen
2e8020be8c Update the entire cAdvisor package. There is a version mismatch issue 
which cause #707
 2014-07-31 10:11:25 -07:00
Dawn Chen
76ec7acf91 bump(github.com/google/cadvisor): bdd574b728e8a1e5eb08649d631197620dd09650 2014-07-31 09:14:04 -07:00
Francisco Souza
2a345ffa9e third_party: update go-dockerclient 
math.MaxInt64 represents 8 exabytes, which is a good limit for memory.
Also, this is the type used by Docker, so it's not possible to get any
value bigger than math.MaxInt64 as memory limit (both ram and swap) on a
Docker container.

Relevant discussion at #589 (more precisely,
https://github.com/GoogleCloudPlatform/kubernetes/pull/589#issuecomment-50640605).
 2014-07-30 15:18:42 -03:00
Rohit Jnagal
fbd3e85e9c Fix handling of default cpu shares. 2014-07-29 18:34:16 +00:00
Daniel Smith
5ae20f9edb Merge pull request #605 from Sarsate/setup-error 
SetUp now returns an error.
 2014-07-24 14:13:22 -07:00
Danny Jones
1117da4a55 SetUp now returns an error. 
SetUp returns an error, kubelet now skips pod if error occurs.
 2014-07-24 13:53:44 -07:00
Victor Marmol
b131da1cf5 Sync pods asynchronously in the Kubelet. 
This makes two main changes:
- Runs syncPod in a separate Go routine (and enforces only one of those
  runs at a time).
- Uses the pod list to determine if a container should be running or
  should be killed (used to use the output of syncPod).

Since Docker pulls are synchronized by the Docker daemon we still block
on that, but pods can now be removed and prepared for starting without
blocking on long pulls.
 2014-07-24 13:47:51 -07:00
Daniel Smith
41eb15bcff Merge pull request #527 from Sarsate/rootdir-flag 
Adds a flag to specify root working directory.
 2014-07-24 13:12:55 -07:00
Danny Jones
bfa4642055 Adds a flag to specify root working directory. 
--root_dir specifies the directory kubelet will use for it's
procedures. Currently used for volume mounts.
 2014-07-24 13:04:05 -07:00
Nan Deng
ea4224cbe7 update github.com/fsouza/go-dockerclient 2014-07-23 17:42:03 -07:00
Eric Tune
ded67ead1e Make Kubelet type members private and provide New functions. 2014-07-22 14:40:59 -07:00
Clayton Coleman
7767c2a2ac Switch the Kubelet to use kubelet/config 
Also transfer the Kubelet from using ContainerManifest.ID to source specific
identifiers with namespacing.  Move goroutine behavior out of kubelet/ and
into integration.go and cmd/kubelet/kubelet.go for better isolation.
 2014-07-21 21:27:26 -04:00
Daniel Smith
f672edd1cf Merge pull request #457 from dchen1107/minionlogs 
Add support to query kubelet's logs and cadvisor's stats through apiserver by passing rawquery
 2014-07-21 16:02:44 -07:00
Dawn Chen
064237a5b8 Add support to query kubelet's logs and cadvisor's stats through 
apiserver by passing rawquery.

minor changes

Fixed a minor rebase issues.

Using ioutil.ReadAll instead of httputil.DumpResponse
 2014-07-21 11:52:32 -07:00
Victor Marmol
88317efb42 Add a pause image for the net container. 
The pause image is a 240KB image that simply pauses waiting on a signal.
Use this for the net container which only needs to act as a placeholder.
Current net image is ~2.5MB. From my tests, this reduces startup time
for the net container from ~14s to ~6s.
 2014-07-21 10:28:49 -07:00
Kelsey Hightower
dc7ee7c333 normalize -etcd_servers flag across all commands 
The -etcd_servers flag is used inconsistently by the Kubernetes commands,
both externally and internally.

This patch fixes the issue by using the same type to represent a list of
etcd servers internally, and declares the -etcd_servers flag consistently
across all commands.

This patch should be 100% backwards compatible with no changes in behavior.
 2014-07-20 07:48:47 -07:00
Tim Hockin
fda69bcca2 Merge pull request #452 from Sarsate/extvol-hostdir 
Initial framework for external volumes.
 2014-07-18 12:44:38 -07:00
Daniel Smith
e9dbc4e8ad Merge pull request #509 from xiangli-cmu/kubelet 
kubelet: cleanup
 2014-07-18 10:24:11 -07:00
Xiang Li
86288ca82a kubelet: cleanup 2014-07-18 10:12:59 -07:00
Tim Hockin
2f593c92fa Merge pull request #487 from yugui/fix/golint 
Fixes Go lint errors and a style fix
 2014-07-17 22:44:31 -07:00
Danny Jones
bb2843498d API modified to use source; now supports EmptyDirectory 
API is now modified to use a Source struct to handle multiple volumes.

Two volume types are supported now, HostDirectory and EmptyDirectory.
 2014-07-17 15:25:50 -07:00
Nan Deng
564a58722c Retrieve machine spec from cAdvisor 2014-07-17 15:21:47 -07:00
Danny Jones
f84ff740f0 Adds initial volumes package; Supports host-dirs 
Adds the framework for external volume mounts.

Currently supports bare host directory mounts.

Modifies the API to support host directory mounts from Volumes
instead of VolumeMounts.
 2014-07-17 10:08:45 -07:00
Clayton Coleman
185a97b037 Make container lookup in the Kubelet cleaner 
Reduce duplicate calls to list lookups for parallel go routines.
 2014-07-16 14:12:13 -04:00
Yuki Sonoda (Yugui)
df9da65939 Rename a function according to go convention 2014-07-16 22:05:06 +09:00
Yuki Sonoda (Yugui)
a702be8e63 Fixes new golint errors in pkg/kubelet after merge 2014-07-16 21:33:26 +09:00
Yuki Sonoda (Yugui)
07b8be4d4c Merge branch 'master' into fix/golint2 
Conflicts:
	pkg/api/types.go
	pkg/health/health_check.go
	pkg/kubelet/kubelet.go
	pkg/kubelet/kubelet_server.go
	pkg/kubelet/kubelet_server_test.go
	pkg/kubelet/kubelet_test.go
 2014-07-16 21:33:21 +09:00
Daniel Smith
c7d31fabbc Merge pull request #480 from monnand/cadvisor-update-1 
Update kubelet package to use most recent cAdvisor's code
 2014-07-15 18:25:54 -07:00
Brendan Burns
c331849e69 Add support for CPU limiting to the kubelet. 2014-07-15 16:49:34 -07:00
Daniel Smith
3d63d733e3 Merge pull request #456 from brendandburns/health 
Move health checking logic out to a utility. Add a minion registry that health checks.
 2014-07-15 15:39:21 -07:00
Brendan Burns
c5db874090 Addressed comments. 2014-07-15 15:16:36 -07:00
Nan Deng
30bc2af9f1 gofmt -r "GetContainerStats->GetContainerInfo" 2014-07-15 11:53:00 -07:00
Nan Deng
8c573ee727 Update to latest cAdvisor and use data structures directly from cAdvisor 2014-07-15 11:53:00 -07:00
Clayton Coleman
e02ea37d9f Move Docker specific function out of the Kubelet 2014-07-15 11:34:48 -04:00
Yuki Yugui Sonoda
edac5ce0b8 Fixes golint errors in pkg/kubelet 2014-07-15 22:56:31 +09:00
Yuki Yugui Sonoda
af38bf1ef7 Fixes golint errors in pkg/api 2014-07-15 22:56:09 +09:00
Clayton Coleman
07fafb1252 Merge pull request #453 from brendandburns/memory 
Add support for memory limits in the kubelet.
 2014-07-15 09:37:42 -04:00
Brendan Burns
62dfc74606 Move health checking logic out to a utility. 
Add a minion registry that health checks.
 2014-07-14 22:38:28 -07:00
Brendan Burns
92d83640c0 Add support for memory limits in the kubelet. 2014-07-14 20:57:26 -07:00
Brendan Burns
ae179121c6 Address comments. 2014-07-14 20:38:43 -07:00
Yifan Gu
3a95572290 Changed the keepChannel to buffered channel. 
Since the keepChannel is used to send data, not just for synchronizaiton,
so make it a buffered channel can avoid unnecessary goroutine yields.
 2014-07-14 14:22:19 -07:00
Claire Li
10de5b12fe pkg/kubelet: explicitly return nil as error and nil as a result on error 2014-07-12 11:03:08 -07:00
Brendan Burns
1b4dfe7d14 Move from bool to HealthCheckStatus 2014-07-11 10:15:31 -07:00
Brendan Burns
6312ffebcf Address some comments from thockin@ 2014-07-11 10:14:45 -07:00
Tim Hockin
32bcdbeb53 Merge pull request #396 from brendandburns/hostname 
Add Hostname to the docker run command.
 2014-07-10 12:28:30 -07:00
Brendan Burns
dc61547b95 Add Hostname to the docker run command. 2014-07-10 12:25:57 -07:00
Yuki Sonoda (Yugui)
45b48e1668 Fixes golint errors in pkg/kubelet 2014-07-10 21:57:26 +09:00
Tim Hockin
b0b9606aea Merge pull request #365 from brendandburns/health 
add http health checks.
 2014-07-09 16:14:30 -07:00
brendandburns
4c309862e3 Merge pull request #371 from thockin/valid3 
Accumulate errors during validation
 2014-07-09 13:36:37 -07:00
Tim Hockin
95fb7bc1ae Merge pull request #379 from brendandburns/host 
Add support for host up binding to the API (and kubelet)
 2014-07-09 12:54:32 -07:00
Brendan Burns
41c6680943 add http health checks. 2014-07-09 12:01:43 -07:00
Dan Mace
00df67b0bf Namespace "local" volume mounts by ContainerManifest ID on disk 
Local volume mounts in a pod should result in host mounted directories
which are namespaced by the ContainerManifest ID.
 2014-07-09 14:45:22 -04:00
Brendan Burns
4b22f7a462 Add support for host ip binding to the API (and kubelet) 2014-07-09 11:13:38 -07:00
Tim Hockin
54790080b3 Accumulate validation errors 
Rather than report the first error, accumulate all errors and report them all
at once.
 2014-07-09 07:55:15 -07:00
brendandburns
242627eaf0 Merge pull request #358 from thockin/valid2 
Add validation of VolumeMounts
 2014-07-08 21:58:32 -07:00
Dawn Chen
a0f94757a4 Instantiate cAdvisor client for kubelet to query both machine and container 
information.
 2014-07-08 16:37:43 -07:00
Tim Hockin
2eb2784725 Validation of HostPorts and Manifest IDs 
Check that HostPorts are unique across the whole host and that Manifest IDs
are unique.
 2014-07-08 15:22:47 -07:00
Tim Hockin
ad88fa48a5 Add validation of Ports 
Also do caseless compares for "enum" strings.
 2014-07-08 15:22:44 -07:00
Tim Hockin
92cf6662ed Merge pull request #351 from discordianfish/use-api-for-pull 
Use api for pulling images instead of shelling out
 2014-07-08 09:08:12 -07:00
Johannes 'fish' Ziemke
3fa6c9671d Use docker client lib instead of binary for pulls 2014-07-08 12:21:39 +02:00
Nan Deng
aa808a6505 fix data race introduced by 1798e0f 2014-07-02 23:23:14 -07:00
brendandburns
bf44347340 Merge pull request #350 from brendandburns/async 
Fix an error in the async-path that led to dropping pods.
 2014-07-02 23:15:35 -07:00
Brendan Burns
0655370ea2 Fix an error in the async-path that led to dropping pods. 2014-07-02 23:05:30 -07:00
brendandburns
d386c02dfd Merge pull request #328 from monnand/root-container 
Get root container stats from cAdvisor
 2014-07-02 22:57:28 -07:00
Nan Deng
42fd4383a1 Get machine stats from cAdvisor 2014-07-02 16:59:50 -07:00
Daniel Smith
a6144f656c Move etcd helpers to tools package so they can depend on api package. Add ResourceVersion, hook it up to etcd index to get atomic PUTs. 2014-07-02 15:42:05 -07:00
Tim Hockin
d3da6b168e nit: s/Id/ID/ for go style 2014-07-02 11:21:29 -07:00
brendandburns
a8a0039a39 Merge pull request #335 from vmarmol/add-kubelet-new 
Add a New() for Kubelet.
 2014-07-01 22:16:24 -07:00
Victor Marmol
e29ff512fc Add a New() for Kubelet. 
This will make it easier to add new fields that need to be initialized. Also refactors tests to ease making fake Kubelets.
 2014-07-01 19:23:26 -07:00
Daniel Smith
969586a214 Add logging, fix crash 
Crash was in kublet_server when fake docker client gives it nil pointer.
 2014-07-01 17:38:07 -07:00
Daniel Smith
587fb75a7a rearrange RunKubelet's parameters so that address and port are next to each other 2014-07-01 16:47:37 -07:00
Daniel Smith
11d6451d2a Change kublet to serve podInfo instead of containerInfo. Plumb through system. 2014-07-01 16:41:10 -07:00
Daniel Smith
049bc6b6d4 Fix interface{} in api/types.go; plumb through system. 2014-07-01 16:41:09 -07:00
brendandburns
664c9faa43 Merge pull request #327 from lavalamp/etcdChanFix 
Improvements to integration test & logging
 2014-07-01 15:40:48 -07:00
Daniel Smith
b820e026f6 Improve logging. 2014-07-01 14:02:14 -07:00
Tim Hockin
a92e1aa1bf First piece of validation 
I'm adding pieces incrementally to make sure we get full testing of each
piece.

Make syncLoop() private
 2014-07-01 13:48:57 -07:00
Brendan Burns
1798e0fea3 Make each pod synchronization async. 2014-07-01 12:20:13 -07:00
Brendan Burns
7999983311 Added async behavior. 2014-07-01 11:11:10 -07:00
Clayton Coleman
15c96508a9 Use ID instead of Id (go style) everywhere 
Fixes #278
 2014-07-01 13:16:47 -04:00
Tim Hockin
6c79937a42 Reduce logging noise 
Don't use %#v for errors.
Do use %+v when more detail than %v is needed.
Fix typos Kublet -> Kubelet.
 2014-06-28 22:16:26 -07:00
Justin Huff
28afe91855 Allow empty lists when polling manifests via http 2014-06-27 23:46:02 -07:00
Daniel Smith
b21facafb1 Merge pull request #273 from brendandburns/kubelet 
Make the docker endpoint a flag.
 2014-06-27 17:09:25 -07:00
Brendan Burns
f8060c5b3d Make the docker endpoint a flag. 2014-06-27 17:01:12 -07:00
Justin Huff
8c5562ef77 DockerContaineId->DockerId 2014-06-27 14:03:50 -07:00
Justin Huff
81663fdb80 Introduce a type for docker container ids 2014-06-27 14:03:50 -07:00
Justin Huff
fe0066d2e4 Cleaning up container ID handling inside kubelet 2014-06-27 14:03:50 -07:00
Brendan Burns
78d9538358 Set id width at 8 and pad with zeros. 2014-06-26 19:24:12 -07:00
Justin Huff
6fdebd6560 Watch and Get on the same Etcd key. 
Kubelet was killing existing pods when creating a new one because new
files were being set as /registry/hosts/<machine>/pods/<id> and
/registry/hosts/<machine>/kubelet.
 2014-06-26 18:59:49 -07:00
Daniel Smith
001b07b292 Use net.JoinHostPort 2014-06-26 16:20:37 -07:00
Tim Hockin
3f0e7e790b Less verbose logging for "normal" things. 
Don't log things that we expect to happen every sync loop, unless the user
asks for --v > 0.
 2014-06-24 22:05:25 -07:00
Tim Hockin
9f9e75f508 Switch to glog for logging, bridge logging to glog. 
1) imported glog to third_party (previous commit)
2) add support for third_party/update.sh to update just one pkg
3) search-and-replace:
  s/log.Printf/glog.Infof/
  s/log.Print/glog.Info/
  s/log.Fatalf/glog.Fatalf/
  s/log.Fatal/glog.Fatal/
4) convert glog.Info.*, err into glog.Error*

Adds some util interfaces to logging and calls them from each cmd, which
will set the default log output to write to glog.  Pass glog-wrapped
Loggers to etcd for logging.

Log files will go to /tmp - we should probably follow this up with a
default log dir for each cmd.

The glog lib is sort of weak in that it only flushes every 30 seconds, so
we spin up our own flushing goroutine.
 2014-06-24 20:51:57 -07:00
Justin Huff
ddf0fd18f0 Remove extractMultipleFromReader and extractSingleFromReader. Unused now after improvements in #212 and #213 2014-06-24 18:59:57 -07:00
brendandburns
8b44f34e0f Merge pull request #213 from lavalamp/fix_manifest 
Better fix of #212
 2014-06-24 17:42:22 -07:00
Daniel Smith
f7968ce00b Make integration test the manifest url feature. Make kubelet's docker pull command testable. 2014-06-24 16:57:35 -07:00
Daniel Smith
fd66a8b59b Readability fixes & address review comments. 2014-06-24 15:16:21 -07:00
Daniel Smith
9d8a16f180 Make manifest url reader accept both single and multiple manifests. 2014-06-24 15:13:18 -07:00
Tim Hockin
c705593b62 Logging cleanup in Kubelet 
Make it easier to see the signal when looking at kubelet logs.  Make the
signal more consistent and legible.
 2014-06-24 13:50:08 -07:00
Tim Hockin
7622bb871b Rename Kubelet.Client -> EtcdClient 
All the other *Client members are so named.  Makes easier reading.
 2014-06-24 13:17:38 -07:00
Justin Huff
4f714dd0fe Ignore files that start with '.' when processing a config dir. 2014-06-24 12:02:49 -07:00
Tim Hockin
8c2a8b65c3 Escape manifest IDs when hunting the network container. 
This makes it possible to have manifests with _ in the ID.  I'm not sure we
want to allow this, but we do for now.  I hope to follow this up with a deeper
change to make this a bit more robust.
 2014-06-24 09:52:43 -07:00
brendandburns
e811e24b23 Merge pull request #216 from thockin/logging 
Minor: log cleanups
 2014-06-23 22:38:06 -07:00
Tim Hockin
60ad86c972 Minor: Log cleanups 
Clean up log messages to be more obvious. Fix a typo (exit -> exist).
 2014-06-23 22:11:18 -07:00
Tim Hockin
7218a4d165 Clarify config file code to be clear that it handles directories. ... 
… Add a check for IsRegular() before reading a config path.  Add a comment
about exec.Command("hostname", "-f").
 2014-06-23 21:14:15 -07:00
Tim Hockin
228156dbc6 Remove noisy non-error lines from logs 2014-06-23 17:58:21 -07:00
Daniel Smith
77af24e7dc manifest_url needs to take a single ContainerManifest. 2014-06-23 15:06:28 -07:00
Justin Huff
1441a84673 Cleanup handling of config channels in RunSyncLoop by passing a map 
instead of a bunch of vars.
 2014-06-22 09:32:49 -07:00
Justin Huff
460821e370 Add a k8s prefix to docker containers that we manage 2014-06-21 13:30:10 -07:00
Justin Huff
ecf7d11477 Make config dir handling deterministic 2014-06-20 09:31:52 -07:00
Justin Huff
d5bf045a6c Make sure that config files are closed properly 2014-06-20 09:31:52 -07:00
Justin Huff
d204f76484 Add config dir support to kubelet 2014-06-20 09:31:52 -07:00
Justin Huff
f49b9c2429 Fix merge conflicts 2014-06-20 09:31:18 -07:00
Daniel Smith
8a13e5300d Merge pull request #182 from brendandburns/net 
Update IP assignment to be per-pod, not per-container
 2014-06-20 09:06:34 -07:00
Brendan Burns
b46d8d2337 Merge branch 'net' of https://github.com/brendandburns/kubernetes-1 into net 2014-06-20 09:01:17 -07:00
brendandburns
3a9a3b1114 Merge pull request #174 from monnand/kubelet-cadvisor 
Letting kubelet retrieve container stats from cAdvisor
 2014-06-20 08:36:22 -07:00
brendandburns
0c8d556afb Fix IP affinity to be per-pod, not per-container. 2014-06-19 23:09:21 -07:00
brendandburns
168ec29f54 Merge pull request #178 from vmarmol/add-external-mounts 
Adding support for external mounts
 2014-06-19 21:28:40 -07:00
Victor Marmol
e794f539d8 Adding support for external mounts 2014-06-19 21:14:19 -07:00
Nan Deng
7c7dfe3eeb style 2014-06-20 04:06:28 +00:00
Brendan Burns
ae9fce1358 Fix the container manifest to so that Command is an array, not a string. 2014-06-19 20:21:20 -07:00
Nan Deng
c7eaa2095c GOPATH... 2014-06-19 20:44:52 +00:00
Nan Deng
037cfd257f add /containerStats 2014-06-19 20:44:52 +00:00
Nan Deng
2402e939c2 Add cAdvisor into third_party 2014-06-19 20:44:52 +00:00
Daniel Smith
7e464aa55c Test controller's synchronize method. Requires fake etcd client to be relocated. 2014-06-18 13:10:39 -07:00
Brendan Burns
2e68d087a9 Add udp support. 2014-06-15 21:19:35 -07:00
Brendan Burns
482a360f9e Make all error strings lower case, for readability. 2014-06-13 15:45:19 -07:00
Brendan Burns
d393838dfd Only manage containers with '--' in the name. 2014-06-13 12:09:48 -07:00
Brendan Burns
164160adef Address package level comments for readability. 2014-06-12 20:26:12 -07:00
brendandburns
f053a49988 Merge pull request #71 from brendandburns/container_info 
Fix some problems in container info handling if the container's no present.
 2014-06-12 20:17:05 -07:00
Brendan Burns
b05bc22a62 Refactor the kubelet for testability. 
Add unit tests.  Test coverage to 56.9%
 2014-06-12 14:44:46 -07:00
Johan Euphrosine
4f6bed03ae gofmt -s pkg/ cmd/ 2014-06-12 14:16:19 -07:00
Brendan Burns
c36a7896fd Added a comment explaining the function. 2014-06-12 11:27:50 -07:00
Daniel Smith
69acbf5a74 Fix build 2014-06-12 09:35:04 -07:00
Daniel Smith
7c17db672e Move hostname detection logic to allow replacement 2014-06-12 09:35:04 -07:00
Brendan Burns
62f6291377 Fix a bug if the container is non-existent. 2014-06-09 16:45:17 -07:00
Brendan Burns
6018497174 Task -> Pod part #3 2014-06-08 22:38:45 -07:00
Daniel Smith
62aba06180 Change 'this' varable to more sensible abbreviation 2014-06-08 20:35:07 -07:00
Joe Beda
2c4b3a562c First commit 2014-06-06 16:40:48 -07:00