Commit Graph

330 Commits (b1d5ee865d31a19c11b529e1d71316ff413fda6a)

Author SHA1 Message Date
Brendan Burns 64be76c14d Add support for Attach to the kubelet.
This is a pre-cursor to supporting 'kubectl attach ...' and 'kubectl run -it ...'
2015-07-27 21:48:55 -07:00
Yu-Ju Hong de75a42cb2 Add a kubelet /runningpods endpoint
/runningpods returns a list of pods currently running on the kubelet. The list
is composed by examining the container runtime, and may be different from the
desired pods to run known by kubelet.

This is useful for tests to verify that pods are indeed deleted on nodes.
2015-06-29 11:29:23 -07:00
Prashanth Balasubramanian af175cc00b Add a pod status equality method to the status manager. 2015-06-22 13:49:49 -07:00
Yifan Gu 6ddffdd736 kubelet: Move TestPortForwardNoSuchContainer() to dockertools package.
Also refactor TestPortForward() to be neutral to container runtime.
2015-06-19 10:28:27 -07:00
Yifan Gu f197a9db4e kubelet: Minor refactors.
Remove some TODOs.
Unexport DockerManager.Puller and DockerManager.PodInfraContainerImage.
Add "docker" for all "go-dockerclient" imports.
2015-06-04 16:08:45 -07:00
Filip Grzadkowski 98115facfd Revert "Gracefully delete pods from the Kubelet" 2015-06-02 23:40:05 +02:00
Clayton Coleman 72ee028cab Gracefully delete pods from the Kubelet
This commit wires together the graceful delete option for pods
on the Kubelet.  When a pod is deleted on the API server, a
grace period is calculated that is based on the
Pod.Spec.TerminationGracePeriodInSeconds, the user's provided grace
period, or a default.  The grace period can only shrink once set.
The value provided by the user (or the default) is set onto metadata
as DeletionGracePeriod.

When the Kubelet sees a pod with DeletionTimestamp set, it uses the
value of ObjectMeta.GracePeriodSeconds as the grace period
sent to Docker.  When updating status, if the pod has DeletionTimestamp
set and all containers are terminated, the Kubelet will update the
status one last time and then invoke Delete(pod, grace: 0) to
clean up the pod immediately.
2015-06-01 19:23:59 -04:00
Chao Xu 2f6e5e2e08 Update ContainerState.Termination to ContainerState.Terminated in pkg/api/types.go and pkg/api/v1/types.go 2015-05-28 17:18:24 -07:00
Paul Morie 8b338860aa Make kubelet expand var refs in cmd, args, env 2015-05-27 00:13:57 -04:00
Yu-Ju Hong 9a71fb9373 Kubelet: clean up kubelet_test.go
* Start using FakeRuntime to replace FakeDockerClient in unit tests.
 * Move and adapt docker-specific tests (e.g. creating/deleting infra
   containers) to manager_test.go in dockertools.
2015-05-26 17:11:24 -07:00
Yu-Ju Hong 8ea88d58d4 Kubelet: make FakeRuntime implement Runtime
We should start using FakeRuntime in kubelet_test.go. First, make it implement
Runtime correctly.
2015-05-26 16:49:46 -07:00
Yifan Gu 6a5681e0fe kubelet: Move HashContainer to kubelet/container package. 2015-05-20 12:08:32 -07:00
deads2k 0c14e0cbdb add pull secret references to pods 2015-05-18 16:18:16 -04:00
Yifan Gu d164ac0ba0 kubelet/container: Refactor RunContainerOptions.
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
Yifan Gu a2dac158c2 kubelet/container: Remove ipcMode and netMode from RunContainerOptions.
Since createPodInfraContainer() is moved into dockertools. There is no
need to pass the ipcMode or netMode via RunContainerOptions.
2015-05-12 14:18:00 -07:00
Yifan Gu 7831b7da72 kubelet/container: Move prober.ContainerCommandRunner to container.
Also include the ContainerCommandRunner in Runtime interface, but
still keep the ContainerCommandRunner interface for testability.
2015-05-11 15:32:51 -07:00
Yifan Gu 8b1174a3a7 kubelet/container: Move pty*.go to container runtime package.
This makes the labeld pty wrapper available for both container runtime.
2015-05-07 23:36:47 -07:00
Yifan Gu 8715c54bd3 kubelet/container: Move kubelet.volumeMap to container.VolumeMap.
This is a quick fix to solve circular dependency problem when
rkt references volume maps.
2015-05-06 16:50:57 -07:00
Paul Morie df08b15121 Change signature of container runtime PullImage to allow pull w/ secret 2015-05-06 17:42:03 -04:00
Prashanth B da42f13941 Merge pull request #7749 from yujuhong/stale_cache
Kubelet: record the timestamp correctly in the runtime cache
2015-05-06 09:20:30 -07:00
Yu-Ju Hong c075719f05 Kubelet: fix the runtime cache to not cache the stale pods
If a pod worker sees stale pods from the runtime cache which were retrieved
before their last sync finished, it may think that the pod were not started
correctly, and attemp to fix that by killing/restarting containers.
There are two issues that may cause runtime cache to store stale pods:
  1. The timstamp is recorded *after* getting the pods from the container
     runtime. This may lead the consumer to think the pods are newer than they
     actually are.
  2. The cache updates are triggered by many goroutines (pod workers, and the
     updating thread). There is no mechanism to enforece that the cache would
     only be updated to newer pods.

This change fixes the above two issues by making sure one always record the
timestamp before getting pods from the container runtime, and updates the
cached pods only if the timestamp is newer.
2015-05-05 18:28:38 -07:00
Robert Bailey 5fe07e69b7 Merge pull request #7725 from pmorie/typo
Fix typo in runtime_cache.go
2015-05-04 17:03:42 -07:00
Paul Morie d90689bb71 Fix typo in runtime_cache.go 2015-05-04 16:33:48 -04:00
Victor Marmol ba7e940a57 Make rkt implement the container Runtime 2015-05-04 11:16:33 -07:00
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
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
Yu-Ju Hong 4fe3366b04 Removes RunPod in the Runtime interface
SyncPod subsumes RunPod, so the latter is no longer needed.
After this change, DockerManager implements the Runtime interface.
2015-05-01 14:47:04 -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
Yu-Ju Hong f74fab4e56 Merge pull request #7603 from vmarmol/runtime-syncpod-api
Add SyncPod() and remove Kill/Run InContainer().
2015-05-01 09:41:50 -07:00
Victor Marmol 6316b485ad Add SyncPod() and remove Kill/Run InContainer().
SyncPod allows us to abstract away how a pod is started and updated. It
also simplifies what the runtime has to implement.
2015-05-01 00:32:29 -07:00
Yifan Gu 3751ecc766 kubelet/container: Move ShouldContainerBeRestarted() to runtime. 2015-04-30 22:55:25 -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
Victor Marmol a94aeb27fa Merge pull request #7586 from yujuhong/container_info
Remove more docker references in kubelet
2015-04-30 16:16:23 -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
Yu-Ju Hong 176fc9b9c6 Remove GetContainers from Runtime interface
This function is no longer considered needed.
2015-04-30 09:33:23 -07:00
Yu-Ju Hong de32785e2e Merge pull request #7532 from vmarmol/runtime-images
Add image-related methods to Runtime interface.
2015-04-30 09:30:59 -07:00
Victor Marmol 090d0c95fa Remove ImagePull metric in Kubelet.
There is an equivalent metric from our Docker metrics and this one is
harder to maintain with the RuntimeHooks.
2015-04-29 17:12:03 -07:00
Victor Marmol 61d51243c5 Add RuntimeHooks interface and Kubelet implementation.
This interface will be used to inject functionality and logic into the
runtimes that should be shared accross runtimes.
2015-04-29 17:06:49 -07:00
Victor Marmol 4d09b79529 Add image-related methods to Runtime interface.
This includes RemoveImage() and ListImages().
2015-04-29 16:00:36 -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
Victor Marmol dfadc10fcb Merge pull request #7488 from yifan-gu/get_container_logs
kubelet/container: Add GetContainerLogs to runtime interface.
2015-04-29 08:24:20 -07:00
Yifan Gu fb1c55aa11 kubelet/container: Add GetContainerLogs to runtime interface. 2015-04-28 20:26:16 -07:00
Yifan Gu ba1389de3c kubelet/container: Update the runtime interface.
Make some of them (RunInContainer, ExecInContainer, etc) to have
same function signatures as current docker and rkt implementation.
2015-04-28 17:55:41 -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
Dawn Chen 4b79e5a3db Merge pull request #7403 from vmarmol/rkt-deps
Remove DockerPrefix references in Kubelet.
2015-04-27 19:05:43 -07:00
Dawn Chen 5ea5fff586 Merge pull request #7391 from vmarmol/rkt-portforward
Add PortForward to runtime API.
2015-04-27 17:10:37 -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 1d6913779b Use kubecontainer.Pod instead of api.Pod in KillPod.
We don't need the full api.Pod and the uses today use kubecontainer.Pod.
2015-04-27 15:36:06 -07:00
Victor Marmol 3a61421711 Add PortForward to runtime API. 2015-04-27 14:56:32 -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 60d7bad147 Merge pull request #7128 from nikhiljindal/fixbeta1tests
Removing more references to v1beta1 from pkg/
2015-04-24 11:07:53 -07:00
nikhiljindal dcc368c781 Removing more references to v1beta1 from pkg/ 2015-04-24 00:45:17 -07:00
Yifan Gu b5a1b32aa4 kubelet/dockertools: Move RunContainer into container runtime.
Also removed ContainerRunner interface.
2015-04-23 16:40:37 -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
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
Yifan Gu de6e81fb4a kubelet/container: Add Pull() and IsImagePresent() to runtime interface. 2015-04-23 11:58:51 -07:00
Victor Marmol 15e2a7fe38 Merge pull request #7200 from yifan-gu/containerID
Introduce container ID type.
2015-04-23 11:33:32 -07:00
Yifan Gu afb9a896cb Introduce container ID type. 2015-04-23 10:43:27 -07:00
Victor Marmol de6d5cc165 Add RunInContainer/ExecInContainer to container Runtime API. 2015-04-22 18:09:24 -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
Dawn Chen a666c1e731 Merge pull request #7134 from yifan-gu/version
kubelet: Refactor GetDockerVersion().
2015-04-21 16:49:45 -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
derekwaynecarr 3445bd5806 Fixup event object reference generation to allow downstream objects to have an event 2015-04-21 15:31:38 -04:00
Yifan Gu e1feed9a8b kubelet/container: Replace DockerCache with RuntimeCache. 2015-04-13 18:16:05 -07:00
Yifan Gu a5e6bea9b5 kubelet/container: Update the cache interface. 2015-04-13 17:38:18 -07:00
Yifan Gu ba1ad9fad2 kubelet: Refactor RunInContainer/ExecInContainer/PortForward.
Replace GetKubeletDockerContainers() with findContainer().
2015-04-06 17:14:46 -07:00
Paul Morie 7628b37d78 Add control over container entrypoint 2015-03-31 12:32:03 -04:00
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
Yifan Gu 5f08555f45 kubelet: Refactor kubelet.runContainer.
Push the run container logic into container runtime.
2015-03-26 13:43:45 -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
Yifan Gu e02c6994dc kubelet.container: Fix volume map type. 2015-03-24 16:08:04 -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 eec6456f51 kubelet.container: Add helpers in container runtime to filter pod/containers. 2015-03-24 16:01:38 -07:00
Yu-Ju Hong f3f3c8f151 Fix volume imports 2015-03-20 16:22:35 -07:00
Yifan Gu 3b4685ef6c kubelet.runtime: update the import path for volume. 2015-03-20 16:16:27 -07:00
Yifan Gu 487d34e409 kubelet: add container runtime cache and fake runtime. 2015-03-20 13:15:20 -07:00
Yifan Gu 319d537cf9 kubelet: add container runtime interface. 2015-03-20 13:15:20 -07:00