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356 Commits

Author SHA1 Message Date
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
Paul Morie
7d30f09ebf Add downward API for environment vars 2015-04-27 14:13:11 -04:00
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
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
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
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
Victor Marmol
914a6febfb Merge pull request #7010 from yifan-gu/compute 
kubelet: Refactor computePodContainerChanges().
 2015-04-22 08:05:18 -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
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
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
Yifan Gu
1d58992df7 kubelet: Refactor prober. 
Decompose the health check prober from the kubelet.
 2015-04-17 15:54:28 -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
Victor Marmol
54406a5b7c Merge pull request #6794 from yujuhong/restart_counts 
Kubelet: persist restart count of a container
 2015-04-14 16:01:49 -07:00
Yu-Ju Hong
fd34441d2d Kubelet: persist restart count of a container 
Currently, restart count are generated by examine dead docker containers, which
are subject to background garbage collection. Therefore, the restart count is
capped at 5 and can decrement if GC happens.

This change leverages the container statuses recorded in the pod status as a
reference point. If a container finished after the last observation, restart
count is incremented on top of the last observed count. If container is created
after last observation, but GC'd before the current observation time, kubelet
would not be aware of the existence of such a container, and would not increase
the restart count accordingly. However, the chance of this should be low, given
that pod statuses are reported frequently. Also, the restart cound would still
be increasing monotonically (with the exception of container insepct error).
 2015-04-14 15:06:42 -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
Yifan Gu
e1feed9a8b kubelet/container: Replace DockerCache with RuntimeCache. 2015-04-13 18:16:05 -07:00
Yifan Gu
4cdb1bf9ce kubelet: Introduce PodInfraContainerChanged(). 
Update tests.
 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
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
Victor Marmol
1563a7636a Merge pull request #6652 from dchen1107/podstatus 
Populate last terminated container information
 2015-04-10 09:21:58 -07:00
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
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
gmarek
72182735b9 Remove Node Controllers ability to pull status from Kubelet 2015-04-08 09:44:42 +02:00
Quinton Hoole
c670071e87 Revert "kubelet: Remove GetRecentDockerContainersWithNameAndUUID." 2015-04-07 14:25:10 -07:00
Nikhil Jindal
842b9d8d3a Merge pull request #6493 from smarterclayton/make_client_pluggable 
Make the client.Fake more powerful by standardizing how the fake loads data
 2015-04-07 12:48:27 -07:00
Victor Marmol
cb0850d7cf Merge pull request #6527 from yujuhong/remove_unused 
Remove unused code in kubelet/server_test.go
 2015-04-07 12:30:39 -07:00
Clayton Coleman
51db3bd654 Create a new testclient package that can be backed by disk files 
Standardize how our fakes are used so that a test case can use a
simpler mechanism for providing large, complex data sets, as well
as represent queries over time.
 2015-04-07 14:56:15 -04:00
Yu-Ju Hong
d6b4633432 Remove unused code in kubelet/server_test.go 
The code creates a channel and a go routine waiting for update, which is never
used by any test. Remove the unused code.
 2015-04-07 11:55:19 -07:00
Yifan Gu
ba1ad9fad2 kubelet: Refactor RunInContainer/ExecInContainer/PortForward. 
Replace GetKubeletDockerContainers() with findContainer().
 2015-04-06 17:14:46 -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
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
Piotr Szczesniak
5c6439d449 Removed PodStatus.Host 
Fixes #6165
 2015-04-02 16:38:45 +02:00
Victor Marmol
2de37624e8 Merge pull request #6252 from krousey/string_format_cleanup 
Fixing a lot of string formatting issues
 2015-03-31 16:57:36 -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
Brian Grant
3354cffbf0 Merge pull request #6182 from thockin/plural_services_20 
Implement multi-port Services
 2015-03-31 12:55:21 -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
Tim Hockin
186818d787 WIP: Implement multi-port Services 2015-03-30 19:28:11 -07:00
Yifan Gu
7b1ea6b41d kubelet_test: Fix copy bug. 
Initialize the slice before copying in verifyUnorderedCalls()
and verifyStringArrayEqualsAnyOrder().
 2015-03-30 17:17:42 -07:00
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
Victor Marmol
0fb131c4f9 Merge pull request #5975 from yifan-gu/refactor_runContainer 
kubelet: Refactor kubelet.runContainer.
 2015-03-26 15:50:37 -07:00
Yifan Gu
e6820bd0ca kubelet_test: Fix verifyStringArrayEqualsAnyOrder(). 
Old implementation can not tell cases where strings are
repetitive. e.g. {"a", "b", "b"} and {"a", "a", "b"} will
be treated as correct.
 2015-03-26 15:26:32 -07:00
Yifan Gu
aa2e7fe688 kubelet_test: Add verifyUnorderedCalls(). 
This fixes TestSyncPodsDeletesWithNoPodInfraContainer.
Since we need to sync two pods in parallel, we should not verify
the docker calls in strict order.
 2015-03-26 15:25:51 -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
d2ea1a793b Merge pull request #5982 from yifan-gu/ref_manager 
kubelet: Add container reference manager.
 2015-03-26 10:20:13 -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
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
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
Deyuan Deng
b51d491f05 Delete all pods based on condition transition time. 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
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
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
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
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
Filip Grzadkowski
1a352b74ba Periodically update pod status from kubelet. 2015-03-18 12:11:39 +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