2bf0646c76
Kubelet: do not remove directories of terminated pods
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We recently changed `SyncPods` to filter out terminated pods at the beginning
for two reasons:
* performance: kubelet no longer keeps goroutines to checks containers for
terminated pods.
* correctness: kubelet relies on inspecting dead containers to generate
pod status. Because dead containers may get garbage collected and
kubelet does not have checkpoints yet, syncing terminated pod could
lead to modifying the status of a terminated pod.
However, even though kubelet should not *sync* the terminated pods, it
should not attempt to remove the directories and volumes for such
pods as long as they have not been deleted. This change fixes aggresive
directory removal by passing all pods (including terminated pods) to the
cleanup functions.
2015-05-18 13:23:49 -07:00
45874d5f76
Merge pull request #5547 from gmarek/client3
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Add a resource specifying number of Pods that are allowed to run on Kubelet.
2015-05-18 11:11:43 -07:00
8216332611
Kubelet kills a pod that exceeds ActiveDeadlineSeconds
2015-05-15 16:33:37 -04:00
27d660d0ac
Add a resource specifying number of Pods that are allowed to run on Kubelet.
2015-05-15 10:57:46 +02:00
4b40db3367
Remove /podInfo endpoint on kubelet
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Kubelet sends pod status updates to the API server now. This endpoint is no
longer needed.
2015-05-14 17:51:26 -07:00
67eab52b9e
Merge pull request #8146 from yifan-gu/runtime_opt
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kubelet/container: Refactor RunContainerOptions.
2015-05-13 11:09:56 -07:00
2617cb26b8
kubelet/container: Add tests for kubelet.makePortMappings().
2015-05-13 10:01:01 -07:00
d164ac0ba0
kubelet/container: Refactor RunContainerOptions.
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Make Envs, Mounts, PortMappings more generic.
Also add default name for PortMapping if it's not specified.
2015-05-13 10:01:00 -07:00
3f49c556e6
Second try at implementing prestop.
2015-05-12 17:17:03 -07:00
40ec627cd4
Merge pull request #8108 from rjnagal/kubelet
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Handle out of disk situation on kubelet.
2015-05-12 15:49:31 -07:00
6ac55002d8
Improve kubelet test for env vars
2015-05-12 17:14:32 -04:00
2cf0dfb79d
Handle out of disk situation on kubelets.
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Kubelet will stop accepting new pods if it detects low disk space on root fs or fs holding docker images.
Running pods are not affected. low-diskspace-threshold-mb is used to configure the low diskspace threshold.
2015-05-12 18:23:09 +00:00
43029345f9
Merge pull request #7973 from dchen1107/podstatus
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Add kubectl log --previous support to view last terminated container log
2015-05-11 17:08:45 -07:00
1465475401
Merge pull request #8079 from yifan-gu/rm_command_runner
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kubelet/container: Move prober.ContainerCommandRunner to container.
2015-05-11 16:05:25 -07:00
7831b7da72
kubelet/container: Move prober.ContainerCommandRunner to container.
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Also include the ContainerCommandRunner in Runtime interface, but
still keep the ContainerCommandRunner interface for testability.
2015-05-11 15:32:51 -07:00
86479cc56c
Add support to pull log for last terminated container
2015-05-11 12:54:04 -07:00
52af792852
kubelet: Fix racy kubelet tests.
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Add fakePodWorkders to run syncPod() in serial for testing.
2015-05-11 12:50:33 -07:00
2f7183cba5
Check Pod privileged container
2015-05-09 17:30:35 -04:00
d185bfd56a
Record failure reason for image pulling
2015-05-08 17:37:11 -07:00
35c644a45f
Merge pull request #7870 from yifan-gu/rkt_volume
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Add volumeGetter to rkt.
2015-05-07 08:58:00 -07:00
e26da316dc
Set NodeReady=False when docker is dead
2015-05-07 09:30:25 +02:00
8715c54bd3
kubelet/container: Move kubelet.volumeMap to container.VolumeMap.
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This is a quick fix to solve circular dependency problem when
rkt references volume maps.
2015-05-06 16:50:57 -07:00
e949a623ff
Change EnvVarSource.FieldPath -> FieldRef and add example
2015-05-04 18:41:09 -04:00
1ad4dd7803
Kubelet: replace DockerManager with the Runtime interface
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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
6b3a6e6b98
Make copyright ownership statement generic
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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
3b9eba2c1b
Add SyncPod() to DockerManager and use in Kubelet.
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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
b37f23f1eb
Add KillContainerInPod in DockerManager
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This changes adds one of the functions that DockerManager needs to implement
the Runtime interface.
2015-04-30 16:23:39 -07:00
2f7b951140
Remove more docker references in kubelet
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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
238b3c6f4e
Move lifecycle handlers to its own sub package.
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This will allow injecting it into the runtimes.
2015-04-30 08:47:23 -07:00
baaea11cd5
Merge pull request #7520 from vmarmol/runtime-pull
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Add RuntimeHooks to abstract Kubelet logic
2015-04-30 08:33:19 -07:00
2a01a2c7e9
Use RuntimeHooks in Kubelet.
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Used in functionality that will be moved to the runtimes.
2015-04-29 17:06:49 -07:00
d81ecc58f8
Adapt pod killing and cleanup for generic container runtime
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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
fe4600ba17
Move ComputePodChanges to DockerManager.
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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
f38c607285
Move Prober to its own subpackage.
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This will allow it to be reused by the runtimes.
2015-04-29 10:11:28 -07:00
787d42d50b
Move network plugin teardown to DockerManager.
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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
aa487b7cab
Merge pull request #7382 from vmarmol/rkt-deps
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Move Docker-specific log handling to DockerManager.
2015-04-27 15:10:14 -07:00
7404b7019c
Move Docker-specific log handling to DockerManager.
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Eases the separation of Docker-specific code into the Docker-specific
runtime.
2015-04-27 13:10:10 -07:00
7d30f09ebf
Add downward API for environment vars
2015-04-27 14:13:11 -04:00
b0e6926f67
kubelet: filter out terminated pods in SyncPods
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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
b5a1b32aa4
kubelet/dockertools: Move RunContainer into container runtime.
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Also removed ContainerRunner interface.
2015-04-23 16:40:37 -07:00
6ed27d06f7
kubelet: Move KillContainer to container runtime.
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Rename KillContainerID(string) with KillContainer(string).
Delete the old KillContainer(*kubecontainer.Container).
2015-04-23 15:44:00 -07:00
6207c518b3
Merge pull request #7254 from yifan-gu/readiness
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kubelet/dockertools: Add readinessManage/containerRefManager to dockerManager.
2015-04-23 14:34:43 -07:00
e8d485a3a1
kubelet/dockertools: Add readinessManage/containerRefManager to dockerManager.
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This can enable us to move KillContainer() to container runtime.
2015-04-23 14:20:34 -07:00
f7831dcd93
Merge pull request #7229 from vmarmol/stats
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Kubelet: Add /stats/container endpoint for raw containers
2015-04-23 13:43:23 -07:00
c29d328c55
Kubelet: Add /stats/container endpoint.
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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
af1e9f737f
kubelet: Introduce volume manager.
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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
2444c1f943
Propagate pod and container name for log files
2015-04-22 15:08:51 -07:00
f59013410a
kubelet/container: Move Prober/HandlerRunner interface to container/helpers.go
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This enables us to pass them to container runtime as parameters.
2015-04-22 11:56:15 -07:00
914a6febfb
Merge pull request #7010 from yifan-gu/compute
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kubelet: Refactor computePodContainerChanges().
2015-04-22 08:05:18 -07:00
611fb25926
kubelet: Refactor GetDockerVersion().
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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
Yu-Ju Hong