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848 Commits

Author SHA1 Message Date
Victor Marmol
79fc8bee34 Change GetContainerLogs() signature. 
This works for both runtimes. We need to eventually unify the ID scheme
for this method.
 2015-05-04 11:16:32 -07:00
Victor Marmol
2ad933e124 Merge pull request #7674 from yujuhong/enable_runtime 
Kubelet: replace DockerManager with the Runtime interface
 2015-05-04 11:10:20 -07:00
Yu-Ju Hong
1ad4dd7803 Kubelet: replace DockerManager with the Runtime interface 
This change instructs kubelet to switch to using the Runtime interface. In order
to do it, the change moves the Prober instantiation to DockerManager.

Note that most of the tests in kubelet_test.go needs to be migrated to
dockertools. For now, we use type assertion to convert the Runtime interface to
DockerManager in most tests.
 2015-05-04 10:19:46 -07:00
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
Victor Marmol
3b9eba2c1b Add SyncPod() to DockerManager and use in Kubelet. 
This allows us to abstract away the logic of syncing a pod by the
runtime. It will allow other runtimes to perform their own sync as well.
 2015-05-01 11:03:08 -07:00
Vish Kannan
cadfde0bd1 Merge pull request #7277 from guenter/cgroup-parent 
Add --cgroup_parent flag to Kubelet to set the parent cgroup for pods
 2015-05-01 10:24:58 -07:00
Victor Marmol
441a4e6f30 Merge pull request #7578 from yujuhong/docker_manager 
Add image-related methods to DockerManager
 2015-04-30 16:16:39 -07:00
Yu-Ju Hong
644ec0dbfb Remove ErrNoKubeletContainers 
We no longer use it.
 2015-04-30 13:35:21 -07:00
Yu-Ju Hong
83c599e4d4 Add image-related methods to DockerManager 
This change is part of the efforts to make DockerManager implement the Runtime
interface.

The change also modifies the interface slightly to work with existing
code, and aggregates the type converting functions to convert.go.
 2015-04-30 13:27:52 -07:00
Yu-Ju Hong
2f7b951140 Remove more docker references in kubelet 
This change also renames TrimRuntimePrefixFromImage to TrimRuntimePrefix to
better reflect that the usage is not limited to images (e.g. ID).
 2015-04-30 13:16:11 -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
Victor Marmol
238b3c6f4e Move lifecycle handlers to its own sub package. 
This will allow injecting it into the runtimes.
 2015-04-30 08:47:23 -07:00
Victor Marmol
4db5127073 Make HttpGetter a shared Kubelet type. 2015-04-30 08:47:23 -07:00
Yu-Ju Hong
baaea11cd5 Merge pull request #7520 from vmarmol/runtime-pull 
Add RuntimeHooks to abstract Kubelet logic
 2015-04-30 08:33:19 -07:00
Victor Marmol
2a01a2c7e9 Use RuntimeHooks in Kubelet. 
Used in functionality that will be moved to the runtimes.
 2015-04-29 17:06:49 -07:00
Yu-Ju Hong
d81ecc58f8 Adapt pod killing and cleanup for generic container runtime 
This change removes docker-specifc code in killUnwantedPods. It
also instructs the cleanup code to move away from interacting with
containers directly. They should always deal with the pod-level
abstraction if at all possible.
 2015-04-29 16:08:09 -07:00
Yu-Ju Hong
ba1140a54f Merge pull request #7480 from vmarmol/runtime-syncpod 
Move ComputePodChanges to the Docker runtime
 2015-04-29 16:05:20 -07:00
Victor Marmol
209b4fcbef Merge pull request #6718 from vishh/sys_oom1 
Adding system oom events from kubelet
 2015-04-29 14:29:38 -07:00
Victor Marmol
fe4600ba17 Move ComputePodChanges to DockerManager. 
This logic is specific to the Docker runtime. This move is the first
step towards making syncPod() runtime-agnostic.
 2015-04-29 14:00:37 -07:00
Vishnu Kannan
020950fd0f Adding events for system ooms. 
Kubelet will continuously watch for system OOMs and generate events whenever it
encounters a system OOM.
 2015-04-29 11:19:11 -07:00
Victor Marmol
f38c607285 Move Prober to its own subpackage. 
This will allow it to be reused by the runtimes.
 2015-04-29 10:11:28 -07:00
Yu-Ju Hong
33b8f487f6 Merge pull request #7449 from vmarmol/runtime-network-plugins 
Move network plugin TearDown to DockerManager
 2015-04-29 10:09:58 -07:00
Victor Marmol
02231ea75d Merge pull request #7503 from jsafrane/devel/fix-volume-rm 
Fixed kubelet deleting data from volumes on stop (#7317).
 2015-04-29 10:01:16 -07:00
Jan Safranek
9b9e98a22f Fixed kubelet deleting data from volumes on stop (#7317). 
We must not clear the pod directory in killUnwantedPods(), volumes are still
mounted there at this time. There already is cleanupOrphanedPodDirs(),
called later in the SyncPods() sequence, which should remove these pod
directories.
 2015-04-29 10:41:19 +02:00
Yifan Gu
fb1c55aa11 kubelet/container: Add GetContainerLogs to runtime interface. 2015-04-28 20:26:16 -07:00
Victor Marmol
787d42d50b Move network plugin teardown to DockerManager. 
This teardown is Docker-specific and will let us also do the setup in
the manager in future cleanups.
 2015-04-28 16:58:54 -07:00
Victor Marmol
de0957ccb1 Create Kubelet types package for common shared types. 2015-04-28 16:57:45 -07:00
Vishnu Kannan
820d0f3e83 Adding a 'PastEventf' method to EventRecorder interface. This will be 
useful for recording the timestamp of events that happened in the past.
 2015-04-28 16:13:29 -07:00
Dawn Chen
af5d017911 Merge pull request #7386 from vmarmol/rkt-pull-image 
Kubelet: Factor out and remove pullImageAndRunContainer
 2015-04-28 09:28:16 -07:00
Dawn Chen
1de4c45115 Merge pull request #7401 from vmarmol/rkt-kill-pod 
Kubelet: Move killPod() logic to DockerManager's KillPod()
 2015-04-28 09:25:12 -07:00
Victor Marmol
6b0db76e85 Move killPod() logic to DockerManager KillPod(). 
This moved Docker specific logic there and allows it to align with the
runtime API. There is still a pod infra container reference in the
function due to network plugins. We can handle this in the Kubelet since
we'll need to be explicit in stating that the network plugin will not
work in a non-Docker runtime.
 2015-04-27 17:15:37 -07:00
Victor Marmol
42a2059a5d Remove DockerPrefix references in Kubelet. 
Makes this usage generic and usable by other runtimes.
 2015-04-27 15:55:13 -07:00
Victor Marmol
3082bb291c Remove pullImageAndRunContainer(). 
Relevant logic is now in shared helpers.
 2015-04-27 15:13:11 -07:00
Victor Marmol
b232eef5f7 Move image PullPolicy logic to pullImage(). 
This will allow us to remove the Docker-specific logic in
pullImageAndRunContainer() and re-use pullImage() in other runtimes.
 2015-04-27 15:13:11 -07:00
Dawn Chen
aa487b7cab Merge pull request #7382 from vmarmol/rkt-deps 
Move Docker-specific log handling to DockerManager.
 2015-04-27 15:10:14 -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
Brian Grant
2648ae86d6 Merge pull request #6739 from pmorie/downward-api 
Env var sources / downward API
 2015-04-27 12:46:00 -07:00
Paul Morie
7d30f09ebf Add downward API for environment vars 2015-04-27 14:13:11 -04:00
Victor Marmol
0c52f7b6a5 Move CreatePodInfraContainer to DockerManager. 
This will allow us to start making it an implementation detail of the
Docker runtime.
 2015-04-27 11:07:38 -07:00
Yifan Gu
6c98b9daee kubelet/metrics: Move instrumented_docker.go to dockertools. 
This can solve the circular import problem when we move the
kubelet.pullImage to kubelet/metrics or kubelet/container package.
 2015-04-24 22:03:11 -07:00
Yu-Ju Hong
b0e6926f67 kubelet: filter out terminated pods in SyncPods 
Once a pod reaches a terminated state (whether failed or succeeded), it should
not transit out ever again. Currently, kubelet relies on examining the dead
containers to verify that the container has already been run. This is fine
in most cases, but if the dead containers were garbage collected, kubelet may
falsely concluded that the pod has never been run. It would then try to restart
all the containers.

This change eliminates most of such possibilities by pre-filtering out the pods
in the final states before sending updates to per-pod workers.
 2015-04-24 15:28:03 -07:00
Yifan Gu
b5a1b32aa4 kubelet/dockertools: Move RunContainer into container runtime. 
Also removed ContainerRunner interface.
 2015-04-23 16:40:37 -07:00
Yifan Gu
6ed27d06f7 kubelet: Move KillContainer to container runtime. 
Rename KillContainerID(string) with KillContainer(string).
Delete the old KillContainer(*kubecontainer.Container).
 2015-04-23 15:44:00 -07:00
David Oppenheimer
8667ebddff Merge pull request #7249 from yifan-gu/generator 
kubelet/container: Introduce RunContainerOptionsGenerator.
 2015-04-23 14:59:23 -07:00
Dawn Chen
6207c518b3 Merge pull request #7254 from yifan-gu/readiness 
kubelet/dockertools: Add readinessManage/containerRefManager to dockerManager.
 2015-04-23 14:34:43 -07:00
Yifan Gu
e8d485a3a1 kubelet/dockertools: Add readinessManage/containerRefManager to dockerManager. 
This can enable us to move KillContainer() to container runtime.
 2015-04-23 14:20:34 -07:00
Yifan Gu
bd7132bc07 kubelet/container: Introduce RunContainerOptionsGenerator. 
This interface wraps the kubelet to provide the options for
container runtime to run a container.
 2015-04-23 13:55:50 -07:00
Dawn Chen
f7831dcd93 Merge pull request #7229 from vmarmol/stats 
Kubelet: Add /stats/container endpoint for raw containers
 2015-04-23 13:43:23 -07:00
Victor Marmol
c29d328c55 Kubelet: Add /stats/container endpoint. 
This endpoint exposes container stats for all raw containers on the
machine. The addition is backwards compatible.
 2015-04-23 10:38:29 -07:00
Yifan Gu
af1e9f737f kubelet: Introduce volume manager. 
The volume manager book-keeps the information for the volume mounts
on the kubelet, so we can avoid passing the volumeMap around.
 2015-04-23 10:37:02 -07:00
Satnam Singh
2444c1f943 Propagate pod and container name for log files 2015-04-22 15:08:51 -07:00
Victor Marmol
45575d95b3 Merge pull request #7177 from yifan-gu/runner 
kubelet/dockertools: Remove dockerContainerCommandRunner.
 2015-04-22 13:24:50 -07:00
Yifan Gu
f59013410a kubelet/container: Move Prober/HandlerRunner interface to container/helpers.go 
This enables us to pass them to container runtime as parameters.
 2015-04-22 11:56:15 -07:00
Yifan Gu
c55c879ffe kubelet/dockertools: Remove dockerContainerCommandRunner. 
Replace with docker manager.
 2015-04-22 11:00:54 -07:00
Victor Marmol
914a6febfb Merge pull request #7010 from yifan-gu/compute 
kubelet: Refactor computePodContainerChanges().
 2015-04-22 08:05:18 -07:00
Brian Grant
8dbbf3da5c Merge pull request #7138 from pravisankar/unschedulable-event 
Record an event on node schedulable changes
 2015-04-22 07:11:14 -07:00
Yifan Gu
611fb25926 kubelet: Refactor GetDockerVersion(). 
Remove GetDockerServerVersion() from DockerContainerCommandRunner interface,
replaced with runtime.Version(). Also added Version type in runtime for version
comparision.
 2015-04-21 14:52:08 -07:00
Ravi Sankar Penta
f1d88f6d2f Record an event on node schedulable changes 2015-04-21 14:14:59 -07:00
Yifan Gu
5594981340 kubelet: Refactor computePodContainerChanges(). 
Pull generatePodStatus() and makePodDataDirs() out as they are the
common part for container runtimes.
 2015-04-21 13:53:20 -07:00
Victor Marmol
4b9a64bcd8 Merge pull request #7098 from yifan-gu/handler 
kubelet: Refactor runHandler().
 2015-04-21 08:14:42 -07:00
Yifan Gu
c23b83b0ca kubelet: Refactor runHandler(). 
Use new HandlerRunner type to replace runHandler()
 2015-04-20 21:31:11 -07:00
Daniel Smith
462534ca5d Merge pull request #7068 from krousey/api_pod_pointer 
Changing  a few more instances of api.Pod to *api.Pod
 2015-04-20 17:09:28 -07:00
Kris Rousey
594f514843 Changing a few remaining instances of passing pods around by value. I 
avoided changing api.PodList.Items to []*api.Pod.
 2015-04-20 15:26:45 -07:00
Victor Marmol
d44e9b4880 Merge pull request #7048 from yujuhong/para_cleanup 
Kubelet: parallelize cleaning up containers in unwanted pods
 2015-04-20 14:59:07 -07:00
Yu-Ju Hong
275002173e Kubelet: parallelize cleaning up containers in unwanted pods 
Kubelet kills unwanted pods in SyncPods, which directly impact the latency of a
sync iteration. This change parallelizes the cleanup to lessen the effect.

Eventually, we should leverage per-pod workers for cleanup, with the exception
of truly orphaned pods.
 2015-04-20 14:42:12 -07:00
Brendan Burns
01b891770f Merge pull request #7054 from ncdc/dockerclient-version 
Use go-dockerclient's APIVersion
 2015-04-20 14:20:57 -07:00
Andy Goldstein
a0a80ea76e Use go-dockerclient's APIVersion 
Use go-dockerclient's APIVersion to check the minimum required Docker
version, as it contains methods for parsing the ApiVersion response from
the Docker daemon and for comparing 2 APIVersion objects.
 2015-04-20 13:48:18 -04:00
Yu-Ju Hong
cd61aa9484 Merge pull request #7009 from yifan-gu/kube_dep 
kubelet: Refactor prober.
 2015-04-20 10:23:04 -07:00
Clayton Coleman
9e87924983 Tone down kubelet logs for already run containers 2015-04-19 22:55:38 -04:00
Yifan Gu
1d58992df7 kubelet: Refactor prober. 
Decompose the health check prober from the kubelet.
 2015-04-17 15:54:28 -07:00
Yu-Ju Hong
1f3e47f6f7 Merge pull request #7005 from yifan-gu/kube_dep 
kubelet: Refactor shouldContainerBeRestarted():
 2015-04-17 15:05:41 -07:00
Yifan Gu
29a5da231d kubelet: Refactor shouldContainerBeRestarted(): 
Remove the function's dependency on kubelet.
 2015-04-17 14:35:39 -07:00
Kris Rousey
81497f3ed2 Changing the scheduler package to use *api.Pod instead of api.Pod to 
avoid unnecessary shallow copies. The change rippled through a lot of
code.
 2015-04-17 13:34:31 -07:00
Yu-Ju Hong
13b29cd64b Merge pull request #6595 from guenter/kubelet-update-channel-closed 
kubelet syncloop should stop if/when updates chan closes
 2015-04-17 10:42:05 -07:00
Victor Marmol
abab9ea31f Merge pull request #6844 from yifan-gu/cleankube 
kubelet: Clean up computePodContainerChanges.
 2015-04-15 13:53:21 -07:00
Yifan Gu
3b28c6262b kubelet: Clean up computePodContainerChanges. 
More `continue`, less `else` to make it less indent and more readable.
 2015-04-15 10:13:57 -07:00
Victor Marmol
fb3c351fe1 Run Kubelet on "/kubelet" container. 2015-04-14 10:29:05 -07:00
Victor Marmol
ca9e209ccb Merge pull request #6795 from yifan-gu/cache 
kubelet/container: Replace DockerCache with RuntimeCache.
 2015-04-14 09:37:34 -07:00
Dawn Chen
8420abeea8 Merge pull request #6786 from yifan-gu/cleankube 
kubelet: Remove unused docker functions.
 2015-04-14 09:16:53 -07:00
Victor Marmol
e265f2c58d Merge pull request #6799 from xiang90/kerr 
pkg/kubelet: fix error msg in GetHostIP
 2015-04-14 08:40:34 -07:00
Xiang Li
4a152290f4 pkg/kubelet: fix error msg in GetHostIP 2015-04-13 22:44:23 -07:00
Yifan Gu
e1feed9a8b kubelet/container: Replace DockerCache with RuntimeCache. 2015-04-13 18:16:05 -07:00
Yifan Gu
7fedb14c27 kubelet: Remove unused docker functions. 
Remove kubelet.getPodInfraContainer().
Remove dockertools.RemoveContainerWithID().
Remove dockertools.FindContainersByPod().

Also replace the useless test with a test for GetPods().
 2015-04-13 16:32:18 -07:00
Yifan Gu
d14cb8f1dd kubelet: Introduce PodInfraContainerChanged(). 
This functions computes in ahead whether we need to restart the pod
infra container.
 2015-04-13 16:18:52 -07:00
Yifan Gu
dda600e45c kubelet/dockertools: Add puller interfaces in the containerManager. 2015-04-13 15:34:22 -07:00
Yifan Gu
a3675e08f2 kubelet/dockertool: Move Getpods() to DockerManager. 2015-04-13 14:05:22 -07:00
Xiang Li
cef744ecaa pkg/kubelet: move the capabilities related code to util.go 2015-04-11 12:09:11 -07:00
Tobi Knaup
3932dfd8bb Log an error when update channel is closed. 2015-04-10 17:30:04 -07:00
Dawn Chen
fff6cebb5f Merge pull request #6711 from yujuhong/container_status 
Kubelet: surface the container creation/start failure reason
 2015-04-10 17:19:32 -07:00
Yu-Ju Hong
bb417e82d7 Kubelet: surface the container creation/start failure reason 
Container creation/start failure cannot be reproduced by inspecting the
containers. This change caches such errors so that kubelet can retrieve it
later.

This change also extends FakeDockerClient to support setting error response
for a specific function.
 2015-04-10 16:02:27 -07:00
Daniel Smith
e2093798cb Merge pull request #6675 from wojtek-t/nodes_support_field_selector 
FieldSelector for node List()
 2015-04-10 10:30:55 -07:00
Victor Marmol
1563a7636a Merge pull request #6652 from dchen1107/podstatus 
Populate last terminated container information
 2015-04-10 09:21:58 -07:00
Wojciech Tyczynski
88eb0b0295 FieldSelector for node List() 2015-04-10 12:53:16 +02:00
Dawn Chen
563f2965ba Populate last terminated container information 2015-04-09 16:10:13 -07:00
Daniel Smith
629d94657e Merge pull request #6624 from gmarek/status_to_subresource 
Update NodeStatus use subresources.
 2015-04-09 16:00:15 -07:00
Victor Marmol
40acaef454 Merge pull request #6607 from yujuhong/mirror_update 
Kubelet: recreate mirror pod if the static pod changes
 2015-04-09 10:29:55 -07:00
Yifan Gu
b868f421e0 kubelet: Move pod infra container image setting to dockertools. 2015-04-09 09:53:07 -07:00
gmarek
ccc56d3c3c Update NodeStatus use subresources. 2015-04-09 14:07:40 +02:00
Yu-Ju Hong
d7cf294c99 Kubelet: recreate mirror pod if the static pod changes 
If a static pod changes, delete the corresponding mirror pod. When kubelet
could not see mirror pod from the API server update, it'd attemp to create a
new mirror pod with up-to-date specs.
 2015-04-08 18:06:21 -07:00
Vish Kannan
43949b41d4 Merge pull request #6586 from dchen1107/podstatus 
small cleanup by removing useless generatePodStatus
 2015-04-08 14:59:23 -07:00
Tobi Knaup
3efff6d4e8 kubelet syncloop should stop if/when updates chan closes 2015-04-08 14:45:16 -07:00
Dawn Chen
914616a195 Merge pull request #6592 from vishh/kubelet_logging 
Improve kubelet logging around startup.
 2015-04-08 14:35:53 -07:00
David Oppenheimer
4ffc2aad21 Merge pull request #6146 from kazegusuri/node_client_label 
List in NodesInterface takes label selector
 2015-04-08 14:22:53 -07:00
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
Dawn Chen
b6d846aea5 small cleanup by removing useless generatePodStatus 2015-04-08 13:38:06 -07:00
Yifan Gu
4b945e7218 kubelet: Remove GetRecentDockerContainersWithNameAndUUID(). 
Add unit tests to test the restart behaviour under different
restart policy.
 2015-04-08 09:44:23 -07:00
Yifan Gu
ddf323ee00 kubelet: Remove GetRecentDockerContainersWithNameAndUUID(). 
Always call GetPodStatus().
 2015-04-08 09:44:23 -07:00
Yifan Gu
6103b144e0 kubelet: Remove GetRecentDockerContainersWithNameAndUUID(). 
Use the pod status to get the recent stopped containers in
shouldContainerBeRestarted().
 2015-04-08 09:44:23 -07:00
Masahiro Sano
d04cc5ced4 List in NodesInterface takes label selector 2015-04-08 23:41:27 +09:00
gmarek
72182735b9 Remove Node Controllers ability to pull status from Kubelet 2015-04-08 09:44:42 +02:00
Daniel Smith
c1390a0836 version field selector field names in the client 2015-04-07 16:59:57 -07:00
Quinton Hoole
c670071e87 Revert "kubelet: Remove GetRecentDockerContainersWithNameAndUUID." 2015-04-07 14:25:10 -07:00
David Oppenheimer
402bf60366 Merge pull request #6214 from gmarek/move_consts_to_flags 
Move NodeController constants to flags
 2015-04-07 11:31:11 -07:00
gmarek
321a81047c Move NodeController constants to flags 2015-04-07 12:33:03 +02:00
Yifan Gu
ba1ad9fad2 kubelet: Refactor RunInContainer/ExecInContainer/PortForward. 
Replace GetKubeletDockerContainers() with findContainer().
 2015-04-06 17:14:46 -07:00
Victor Marmol
7716804a0d Merge pull request #6470 from yifan-gu/get_recent 
kubelet: Remove GetRecentDockerContainersWithNameAndUUID.
 2015-04-06 14:25:59 -07:00
Yifan Gu
a8c02412b2 kubelet: Remove GetRecentDockerContainersWithNameAndUUID(). 
Use the pod status to get the recent stopped containers in
shouldContainerBeRestarted().
 2015-04-06 12:43:49 -07:00
James DeFelice
d194af6b4f allow for more easily customized kubelet creation and initialization 2015-04-06 18:51:42 +00:00
Yu-Ju Hong
0e1bd18b3e Fix the kubelet node watch 2015-04-04 09:59:39 -07:00
Dawn Chen
67c1678e7e Merge pull request #6378 from yujuhong/docker_manager 
RFC: Kubelet: a step towards to better encapsulation of docker functions
 2015-04-02 14:22:26 -07:00
Yu-Ju Hong
d01bc660b5 Kubelet: a step towards to better encapsulation of docker functions 
We want to stop leaking more docker details into kubelet, and we also want to
consolidate some of the existing docker interfaces/structs. This change creates
DockerManager as the new home of some functions in dockertools/docker.go. It
also absorbs containerRunner. In addition, GetDockerPodStatus is renamed to
GetPodStatus with the entire pod passed to it so that it is simialr to the what
is defined in the container Runtime interface.

Eventually, DockerManager should implement the container Runtime interface, and
integrate DockerCache with a flag to turn on/off caching. Code in kubelet.go
should not be using docker client directly.
 2015-04-02 13:26:39 -07:00
Brian Grant
414be101b6 Merge pull request #6352 from piosz/api 
Removed PodStatus.Host
 2015-04-02 13:16:24 -07:00
Wojciech Tyczynski
6b08958264 Kubelet watching only its own Node 2015-04-02 18:39:59 +02:00
Piotr Szczesniak
5c6439d449 Removed PodStatus.Host 
Fixes #6165
 2015-04-02 16:38:45 +02:00
Dawn Chen
db28ca67f6 Using gcr.io/google_containers/pause by default 2015-04-01 14:59:44 -07:00
Kris Rousey
6904c4d585 Fixing a lot of string formatting issues with regards to: 
* Improper format specifier (e.g. %s for bools or %s for ints)
  * More or less parameters than format specifiers
  * Not calling a formatting function when it should have (e.g. Error() instead of Errorf())
 2015-03-31 16:47:10 -07:00
Victor Marmol
9bbf0b1546 Merge pull request #6100 from pmorie/entrypoint 
Add control over container entrypoint
 2015-03-31 09:58:40 -07:00
Victor Marmol
d6d370d8ae Merge pull request #6211 from dchen1107/docker 
publish node components version information
 2015-03-31 09:47:08 -07:00
Dawn Chen
5b9a6d47e8 publish node components version information 2015-03-31 09:32:29 -07:00
Paul Morie
7628b37d78 Add control over container entrypoint 2015-03-31 12:32:03 -04:00
Victor Marmol
de35c8f2af Record event when image GC fails. 2015-03-30 10:32:51 -07:00
Federico Simoncelli
0e60374346 nodes: record an event on NodeReady changes 
Signed-off-by: Federico Simoncelli <fsimonce@redhat.com>
 2015-03-30 12:01:09 -04:00
Federico Simoncelli
fe2d1f6762 node: move the reboot detection logic to kubelet 
Signed-off-by: Federico Simoncelli <fsimonce@redhat.com>
 2015-03-30 09:33:07 -04:00
Federico Simoncelli
604e0ad328 kubelet: move getNodeReference logic into a function 
Signed-off-by: Federico Simoncelli <fsimonce@redhat.com>
 2015-03-30 09:33:00 -04:00
Yu-Ju Hong
372c5c9f3a Kubelet: set host field in the pending pod status 
Otherwise, the apiserver would reject the update.
 2015-03-27 17:26:47 -07:00
Victor Marmol
e4fc45c26f Merge pull request #6054 from fgrzadkowski/fix_pod_status 
Do not fail pod status update if failed to get host IP
 2015-03-27 09:10:44 -07:00
Victor Marmol
4ed3346587 Merge pull request #6039 from yifan-gu/readiness 
kubelet: Add container readiness manager.
 2015-03-27 09:04:00 -07:00
Filip Grzadkowski
fe2f7f25c6 Do not fail if failed to get host IP 2015-03-27 14:15:41 +01:00
Yifan Gu
6fecda710c kubelet: Add container readiness manager. 
Move the readiness managing logic into pkg/kubelet/container package
to facilitate the pluggable container runtime.
 2015-03-26 18:45:23 -07:00
Vish Kannan
f2c7dda6da Merge pull request #6026 from dchen1107/clean 
kubectl describe nodes id reports related events
 2015-03-26 17:39:21 -07:00
Dawn Chen
f662d7d11c Kubelet reports node related events with empty namespace for now. 2015-03-26 16:30:23 -07:00
Yifan Gu
5f08555f45 kubelet: Refactor kubelet.runContainer. 
Push the run container logic into container runtime.
 2015-03-26 13:43:45 -07:00
Victor Marmol
1cad0df268 Merge pull request #6004 from yifan-gu/ref_manager 
kubelet: Move container reference manager to pkg/kubelet/container.
 2015-03-26 13:04:34 -07:00
Brian Grant
3b0db99692 Merge pull request #5915 from piosz/api 
Changed PodInfo to be a list
 2015-03-26 12:46:50 -07:00
Yifan Gu
9f62b929b8 kubelet: Move container reference manager to pkg/kubelet/container. 
This enables other package to use it, such as docktools.
 2015-03-26 11:53:44 -07:00
Victor Marmol
a59e5f8995 Refactor pod killing to be done in a single killPod(). 2015-03-26 11:25:48 -07:00
Victor Marmol
106cc037ee Merge pull request #5995 from ArtfulCoder/pause_no_port_forward_for_net_host 
Kill running Pod running with -net=true if kubelet does not allow it
 2015-03-26 11:03:58 -07:00
Victor Marmol
d2ea1a793b Merge pull request #5982 from yifan-gu/ref_manager 
kubelet: Add container reference manager.
 2015-03-26 10:20:13 -07:00
Abhishek Shah
5c42070eeb Kill running Pod running with -net=true if kubelet does not allow it 2015-03-26 10:13:06 -07:00
Yifan Gu
a06bc96414 kubelet: Add container reference manager. 
Move the reference managing logic into container reference manager.
This enables pluggable container runtime to manage the container references.
 2015-03-26 09:50:54 -07:00
gmarek
5a11748018 Move Capacity from NodeSpec to NodeStatus 2015-03-26 15:28:48 +01:00
Piotr Szczesniak
31901ed9d0 Changed PodInfo to be a list 
This change is to make API consistent with our convention.

Fixes #3622
 2015-03-26 10:15:25 +01:00
Abhishek Shah
cd5ed38250 Stop port forwarding from pause in net=host mode 2015-03-25 17:55:37 -07:00
Federico Simoncelli
afbf401464 nodeinfo: add boot id system information 
Signed-off-by: Federico Simoncelli <fsimonce@redhat.com>
 2015-03-25 15:06:53 -04:00
Victor Marmol
cf7e2756b5 Add HostNetworkSources capability to limit use of HostNetwork. 2015-03-25 11:23:06 -07:00
Victor Marmol
d9cd7a78f7 Allow starting a container with --net=host. 2015-03-25 11:22:03 -07:00
Victor Marmol
5eb373692b Merge pull request #5928 from yujuhong/pod_status 
Kubelet: pass the acutal pod for status update
 2015-03-25 10:51:32 -07:00
Victor Marmol
f7135b3dd4 Merge pull request #5827 from spothanis/master 
added cloud provider flag to kubelet
 2015-03-25 10:50:18 -07:00
Yu-Ju Hong
b4b0bc75c4 Kubelet: pass the acutal pod for status update 
Pod status update should include the ObjectMeta of the pod. This change is
required for #5738 to merge.
 2015-03-25 09:58:46 -07:00
Filip Grzadkowski
74da3b14b0 Delete pod_cache and rely on updating pod status by kublet. 2015-03-25 15:08:09 +01:00
Sreekanth Pothanis
1c06cde4c4 added cloud provider flag to kubelet 
This is to fix issue #5667
 2015-03-24 19:32:50 -07:00
Yifan Gu
31bb11ac2a kubelet: Move pod name helpers to pkg/kubelet/container/runtime.go 2015-03-24 16:08:04 -07:00
Yifan Gu
13250c904f kubelet: Replace GetKubeletDockerContainers with GetPods in syncPod/SyncPods. 2015-03-24 16:01:38 -07:00
David Oppenheimer
30c3583900 Merge pull request #5806 from ddysher/condition-rename 
Rename ConditionFull->ConditionTrue, ConditionNone->ConditionFalse
 2015-03-24 15:50:11 -07:00
Victor Marmol
270c850b3b Merge pull request #5826 from yujuhong/pod_manager 
Kubelet: refactor pod manager
 2015-03-24 15:33:54 -07:00
Yu-Ju Hong
08e4a883b6 Kubelet: refactor pod manager 
This change cleans up the pod manager extensively so that
 * Mirror pods are actually stored in the pod manager.
 * Both (non-mirror) pods and mirror pods are indexed by UID and full name for
   easy lookup and mapping. This is required for the next change to send
   full pod along with the pod status update.

This change also renames mirrorManager as mirrorClient since it is merely a
client to contact the API server and create/delete mirror pods.
 2015-03-24 15:10:26 -07:00
Deyuan Deng
ca68f4a9d1 Rename ConditionFull->ConditionTrue, ConditionNone->ConditionFalse 2015-03-24 17:28:59 -04:00
David Oppenheimer
c1730989cb Merge pull request #5870 from dchen1107/podstatus 
Fix a bug of running node selector predicate on kubelet introduced by #5...
 2015-03-24 14:05:27 -07:00
Dawn Chen
e2e1d9e943 Fix a bug of running node selector predicate on kubelet introduced by #5715. 
part of #5207, and fixed #5810
 2015-03-24 13:13:25 -07:00
Deyuan Deng
c5675b8924 Use fake time in nodecontroller unittest; rename receiver 's' to 'nc' 2015-03-24 14:23:48 -04:00
Deyuan Deng
b51d491f05 Delete all pods based on condition transition time. 2015-03-24 14:23:48 -04:00
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
Victor Marmol
07f928be64 Cap container hostname length to 63 chars. 
Fixes #5829.
 2015-03-23 19:36:45 -07:00
Yu-Ju Hong
f440989017 Kubelet: add podManager for managing internal pod storage 
This change moves pod array and mirrorPods into podManager, along with all
methods accessing these internal pod storages. This is the first step of the
refactoring, and no function change is involved.
 2015-03-23 15:11:10 -07:00
Saad Ali
e8f70428fb Merge pull request #5715 from jszczepkowski/kubelet-nodesel 
Running node selector predicate on kubelet.
 2015-03-23 11:06:00 -07:00
Jerzy Szczepkowski
34a8a3a844 Running node selector predicate on kubelet. 
Added checking on kubelet if scheduled pods have matching node selector. This is the last step to fix #5207.
 2015-03-23 08:21:58 +01:00
Nataliia Uvarova
73c2338320 Refactor build/parse dockername. #3511 
Functions Build/ParseDockerName now work with struct instead of the long
list of arguments. This new struct also was reused in the kubelet.go
instead of auxilary podContainer struct.
 2015-03-21 09:09:03 +01:00
Yu-Ju Hong
15e9760bd4 Kubelet: support retrieving stats using UID of mirror pod 
Kubelet supports retrieving stats for pods/containers with and without UID.
This does not always work for the static pods because users may get the UIDs of
the mirror pods from the API server, and use them to query Kubelet. In this
case, Kubelet would fail to locate the containers due to mismatched UIDs.

This change adds a intenral mirror to static pod UID mapping and teaches all
public-facing functions to perform UID lookup before proceeding. This allows
users to use either mirror or static pod's UID to retrieve stats.
 2015-03-20 15:40:49 -07:00
Vish Kannan
f118ca8fb4 Merge pull request #5642 from thockin/volume_multi_plugins 
Prep for multiple kinds of volume plugins
 2015-03-20 15:12:30 -07:00
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
Abhishek Gupta
b0c23c1046 Headless Services: Adding option to specify None for PortalIP 2015-03-20 12:10:03 -07:00
Clayton Coleman
84ab8f7254 Reduce probe logging level 
Too chatty for normal operation
 2015-03-19 23:06:21 -04:00
Yu-Ju Hong
0d0fb5f07b Kubelet: per-pod workers should avoid grabbing the pod array lock 
Per-pod worker syncs the pod and container status, and write the pod status in
the pod status cache. Given that it already owns a copy of the pod, it can
bypass the additional pod lookup step completely. This change adds a new
generatePodStatusByPod() method to achieve this. In general, per-pod worker
should avoid accessing the internal pod array completely, as this would may
lead to high contention.

This change also changes the return type of GetPodByFullName to reflect the
name, and consolidates GetPodByFullName() and GetPodByName().
 2015-03-19 18:25:41 -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
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