Commit Graph

473 Commits (3beae6b70b744e8fcf1bd77133a8bdd84df9c4d2)

Author SHA1 Message Date
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
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
Victor Marmol b00e82ed93 Merge pull request #5466 from dchen1107/docker
Fix a regression introduced lately: When any given PodInfraContainer on ...
2015-03-13 16:04:01 -07:00
Dawn Chen 732d4cb2b9 Fix a regression introduced lately: When any given PodInfraContainer on a node
is killed, kubelet kills all remaining containers no matter which pod that
container belongs to.

Fixed #5373
2015-03-13 15:46:30 -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
gmarek 3489d1ae01 Refactor kubelet syncPod method 2015-03-13 18:22:42 +01:00
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
Eric Tune ae9bc28f8b Remove mentions of etcd in kubelet. 2015-03-11 16:40:20 -07:00
Deyuan Deng 9982aaa960 kubelet post node status to master 2015-03-10 23:17:36 -04:00
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
Vish Kannan 53ec66caf4 Merge pull request #5152 from vmarmol/cadvisor-dep
Rename cAdvisor info API to cadvisorApi
2015-03-06 18:09:28 -08:00
Victor Marmol 43b469bd9f Rename cAdvisor info API to cadvisorApi 2015-03-06 16:06:38 -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
Victor Marmol a35f4374c5 Update cAdvisor ContainerInfo references to v1 API.
The cAdvisor data structures were versioned recently. We use the v1
versions so this commit makes that explicit.
2015-03-06 15:42:06 -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
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
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
Brendan Burns fb90b56bf6 Embed VolumeSource in v1beta3 and internal. 2015-03-04 02:25:40 -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
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 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
Jeff Grafton c2e7e2d029 Revert "Adding sync pod latency metric." and "Thread-per-pod model in Kubelet."
This reverts commits 744f33d886 and
7191c5c7fd.
2015-02-26 12:15:28 -08:00
Victor Marmol 744f33d886 Adding sync pod latency metric.
Latency is broken down by create, update, and sync pods.

Part of #4604.
2015-02-26 11:13:04 -08:00
Wojciech Tyczynski 7191c5c7fd Thread-per-pod model in Kubelet. 2015-02-26 17:58:57 +01:00
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
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 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
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
Daniel Smith 650f6cb826 Revert "Multi-port Endpoints" 2015-02-23 13:53:21 -08:00
Tim Hockin e0fd83096c 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.
2015-02-21 22:26:38 -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
rsokolowski e81ef667c2 Fix broken kubelet_test.go. 2015-02-20 11:20:12 +01:00
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
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
Xiang Li 0e20f7d736 pkg/kubelet: recreate infra pod if the pod is changed 2015-02-18 15:05:16 -08:00
Prashanth Balasubramanian 9427f75788 Cadvisor returns richer errors to the kubelet server. 2015-02-18 09:31:28 -08:00
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 4dbf98e98f Don't delete the pod infrastructure container on health check failures. 2015-02-12 21:28:32 -08:00
Dawn Chen f5f2b6f773 Check if kubelet does know such Pod before querying status. 2015-02-11 10:16:04 -08:00
Mike Danese c72c2a0d1e added tests 2015-02-10 08:30:13 -08:00
Mike Danese 043794492e implement readiness. 2015-02-10 08:30:09 -08:00
Dawn Chen f762e062f2 Kubelet decides podStatus 2015-02-05 15:49:41 -08:00
Brendan Burns 8b25b43039 Merge pull request #4117 from wojtek-t/validate_docker_version
Check Docker version in Kubelet /healthz handler
2015-02-05 10:06:33 -08:00
Brendan Burns cfe5b14114 Wait until containers actually finish running before trying to clean up
volumes or pods.
2015-02-04 17:28:41 -08:00
Wojciech Tyczynski ead67108ce Use existing method to get Docker version. 2015-02-04 20:50:21 +01:00
Mrunal Patel 19e0605f5b Replace "net" by "pod infra" in docs and format strings. 2015-01-28 15:03:06 -08:00
Mike Danese 78f33e950a rename api.LivenessProbe to api.Probe and break out Actions 2015-01-28 11:20:44 -08:00
Tim Hockin c8f61885df Merge pull request #3695 from mikedanese/ready
refactor pkg/health into more reusable pkg/probe
2015-01-28 11:00:32 -08:00
Mike Danese a298402bd4 remove pkg/health and move everything over to pkg/probe 2015-01-27 11:20:30 -08:00
Mrunal Patel b6a0ff1003 IP: Shared IPC. 2015-01-27 09:26:36 -08:00
Tim Hockin 30219f8dfa Merge pull request #3664 from thockin/pull-if
Pull if
2015-01-21 13:05:28 -08:00
Tim Hockin 81343aac63 Change PullPolicy constants to match 2015-01-21 12:48:56 -08:00
Tim Hockin 819803b79f Make VolumeSource not be a pointer
There's no reason for it to be a pointer.
2015-01-20 17:54:04 -08:00
Brian Grant dd45246150 Merge pull request #3587 from dchen1107/image
Clean up Kubernetes PullPolicy
2015-01-20 17:18:26 -08:00
Dawn Chen 2299c04cea Remove image GC.
Fix #3617,#3611, and #3393.
2015-01-20 13:43:08 -08:00
Dawn Chen 3101a33d32 Kubelet stop using api/helper.go for PullPolicy 2015-01-20 11:54:22 -08:00
Tim Hockin 6cb275829f Implement volumes as plugins.
Break up the monolithic volumes code in kubelet into very small individual
modules with a well-defined interface.  Move them all into their own packages
and beef up testing along the way.
2015-01-20 11:45:45 -08:00
Andrew Seidl 6dee1d7fa4 Fix typos in user-facing strings 2015-01-18 01:32:34 -06:00
Eric Tune 5aeda8a5bb Remove dead code in test. 2015-01-15 14:49:08 -08:00
Daniel Smith 46f8a56dba Merge pull request #3376 from erictune/channel_api
Kublet watches Pods.
2015-01-15 14:48:12 -08:00
Eric Tune b759f67ee3 Kublet watches Pods.
Added a kubelet config source for watching pods on apiserver.
The pods are converted to boundpods for merging with other
config sources.

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

Unit, integration, and e2e tests pass, except for a failure of the pd
e2e test which was unrelated.
2015-01-14 15:31:26 -08:00
Tim Hockin 1be3de895c Move util.UID to pkg/types 2015-01-14 15:22:21 -08:00
Eric Tune 88c68e0349 Merge pull request #3331 from pmorie/services
Service visibility w/in namespaces, master services, set env vars in kubelet
2015-01-14 15:01:05 -08:00
Paul Morie fd834ae84d Pods should see services only from their own ns 2015-01-14 17:06:36 -05:00
Tim Hockin e86d4cd3c6 Use a strong type for UID fields 2015-01-14 13:53:43 -08:00
saadali 110ab6f1bd Split up kubelet "source seen" logic 2015-01-12 21:48:55 -08:00
Tim Hockin 0d92da6b15 Remove logic to handle if UID is blank
This should only have been triggered by tests, and those should now be fixed.
I tested by calling panic() if UID was blank in BuildDockerName() or if number
of fields was < 5 in ParseDockerName().  All errors were fixed.
2015-01-12 14:27:34 -08:00
Tim Hockin 905514a12b Ensure Namespace and UID are set in kubelet
Make all kubelet config sources ensure that UID and Namespace are defaulted, if
need be.

We can *almost* disable the "if blank" logic for UID, except for tests that
call APIs that do not run through SyncPods.  We really ought to be enforcing
invariants better.
2015-01-12 14:27:34 -08:00
Tim Hockin 523a80bec7 Apply more structure to pod data dirs
This is makes it possible to read back "known" pods from disk without
getting other (non-pod) kubelet dirs in the mix.  Ditto for containers
within a pod.  This is just saner overall.  Pods now nest in a pods/
dir.  Likewise containers.
2015-01-12 06:16:32 -08:00
saadali e8d30f019d Modify "kubectl get events" to print FieldPath so BoundPod events for the same Pod but different containers can be differentiated 2014-12-29 21:32:49 -08:00
Tim Hockin 652479a3b1 Add kubelet DNS flags & api disable for DNS
This adds --cluster_dns and --cluster_domain flags to kubelet.  If
non-empty, kubelet will set docker --dns and --dns-search flags based on
these.  It uses the cluster DNS and appends the hosts's DNS servers.
Likewise for DNS search domains.

This also adds API support to bypass cluster DNS entirely, needed to
bootstrap DNS.
2014-12-29 09:18:12 -08:00
Brendan Burns b8781c04bb Add support for garbage collecting images. 2014-12-22 16:56:58 -08:00
Dawn Chen 608c3d5046 Update kubelet package on latest go-dockerclient package. 2014-12-18 13:49:13 -08:00
Brendan Burns 7da0378f3c Track the sources that the kubelet has seen, and only delete pods
when every source has been seen at least once.
2014-12-17 13:08:43 -08:00
Clayton Coleman dadb8431c4 Remove internal PodState in favor of internal PodStatus object 2014-12-15 16:50:05 -05:00
Daniel Smith e46bfcf699 Allow, when testing, SelfLinks to be unset. Kubelet now makes events in tests. 2014-12-09 17:53:42 -08:00
Daniel Smith ba62943b8e Compare containers by name, not by pointer equality. 2014-12-09 17:06:39 -08:00
Tim Hockin acc6b95c21 Add functions to get kubelet directories.
Gets rid of some magic constants and makes volume plugins (coming later)
cleaner.
2014-12-06 11:00:19 -08:00
Jimmi Dyson 5109ce3356 Fixes #2681: update to cadvisor 0.6.2 2014-12-01 11:38:03 +00:00
Dawn Chen ce145545b9 Add unittests to test PullPolicy. 2014-11-14 16:09:53 -08:00
Dawn Chen 57454cce81 Add support to capture application termination message and propagate
the message to the upper layer through ContainerStatus.
2014-11-10 10:56:23 -08:00
Dawn Chen 03958f5049 Restart network container when container's configure is changed.
Fix #2099
2014-11-04 14:38:33 -08:00
Brendan Burns 69ca97a41c Fix a flaky test by draining the worker pool after syncing. 2014-10-31 09:52:01 -07:00
Brendan Burns 51bf451932 Add container garbage collection. 2014-10-28 12:52:06 -07:00
Tim Hockin 2bbd11eda6 Merge pull request #1975 from smarterclayton/split_type_meta
Split TypeMeta into ObjectMeta/ListMeta
2014-10-24 08:43:00 -07:00
Clayton Coleman 644eb70085 Refactor tests to split ObjectMeta from TypeMeta 2014-10-24 11:22:21 -04:00
Tim Hockin 76c33a88b6 Remove redundancy in SyncPods 2014-10-23 15:53:26 -07:00
Tim Hockin 487867bd01 Extract cadvisor code to cadvisor.go 2014-10-23 15:53:26 -07:00
Clayton Coleman bb77a5d15f Rename ID -> Name 2014-10-22 15:00:26 -04:00
Clayton Coleman 892942af8f Read BoundPods from etcd instead of ContainerManifestList
There are three values that uniquely identify a pod on a host -
the configuration source (etcd, file, http), the pod name, and the
pod namespace. This change ensures that configuration properly
makes those names unique by changing podFullName to contain both
name (currently ID in v1beta1, Name in v1beta3) and namespace.

The Kubelet does not properly handle information requests for
pods not in the default namespace at this time.
2014-10-16 19:29:08 -04:00
Clayton Coleman 95cb2e3eb3 Refactor HealthCheck to take podUUID arguments
PodState is going away (won't have podUUID anymore)
2014-10-09 16:42:55 -04:00
Dawn Chen 39f648bda2 Fix rebase issues. 2014-10-06 13:37:23 -07:00
Dawn Chen 8d0ed93aa1 Clean unittests 2014-10-06 13:37:22 -07:00
Clayton Coleman 6881db64a9 Allow configurable Kubelet net image for isolated networks
Public access to the DockerHub is not guaranteed in all environments,
add a flag to the kubelet that allows it to use a different image (like
one on a private registry) as well as only pull the first time the
image is needed.

Fixes #1545
2014-10-02 15:56:03 -04:00
Eric Tune 9c0769422d Directory renamed to Dir to match json property 2014-10-01 13:35:21 -07:00
Tim Hockin 1c02af3d16 Kill LivenessProbe.Type 2014-09-27 21:16:30 -07:00
Dawn Chen 01c9015ed3 use _ as the separator for docker container name. 2014-09-26 09:21:21 -07:00
Daniel Smith 283eaf3931 Add new Event type
* replaces previous Event type, which is too limited.
* Remove writing of old event type.
* Fix serialiazation test to automatically test all types.
2014-09-25 11:31:35 -07:00
Eric Paris a32400f47f Remove all code dealing with cadvisor Percentiles
This was removed upstream beween cadvisor 0.3.0 and 0.4.0
2014-09-22 14:22:40 -04:00
Brian Waldon 0bf4fabc19 kubelet: move docker-related code into sub-package 2014-09-11 13:12:28 -07:00
Dawn Chen 15cab4d053 Introduce the simplest RestartPolicy and handling. 2014-09-08 22:41:38 -07:00
Dawn Chen 7ace5a3e83 Passing pod UUID to Kubelet. 2014-09-08 14:24:09 -07:00
Brendan Burns d0884accd7 Add support for the PostStart event handler. 2014-09-05 12:37:57 -07:00
Daniel Smith 97b05619f1 Remove deprecated bits from kubelet 2014-08-26 22:39:00 -07:00
Brendan Burns 556eb0f400 Add a run command to the kublet server 2014-08-26 13:57:44 -07:00
Tim Hockin 0f97a73c1b Rename a bunch of "Make" functions to "New"
Also rename some to other names that make better reading.  There are still a
bunch of "make" functions but they do things like assemble a string from parts
or build an array of things.  It seemed that "make" there seemed fine.  "New"
is for "constructors".
2014-08-20 21:27:19 -07:00
Brendan Burns 0caae9c1d4 Add a in container exec based health check. 2014-08-18 12:00:11 -07:00
Brendan Burns 2986db9885 Add container hashing to the container name, and restart containers on changes. 2014-08-08 13:32:07 -07:00
Daniel Smith 2297bf8cea Merge pull request #830 from brendandburns/net
Delete containers for a pod if we have to create the network container.
2014-08-08 13:12:42 -07:00
Brendan Burns 38900a9c58 Delete containers for a pod if we have to create the network container. 2014-08-08 12:34:59 -07:00
Brendan Burns d31d0781b2 Add support for "run in" 2014-08-07 20:27:58 -07:00
Clayton Coleman f7149926c0 Remove expectNoError from client, kubelet, and util 2014-08-04 09:39:06 -04:00
Brendan Burns 490bb28bf9 Add TCP socket based health checking. 2014-08-01 14:13:56 -07:00
Jonathan Boulle c43035088b assorted formatting and typo fixes 2014-07-24 15:10:36 -07:00
Victor Marmol b131da1cf5 Sync pods asynchronously in the Kubelet.
This makes two main changes:
- Runs syncPod in a separate Go routine (and enforces only one of those
  runs at a time).
- Uses the pod list to determine if a container should be running or
  should be killed (used to use the output of syncPod).

Since Docker pulls are synchronized by the Docker daemon we still block
on that, but pods can now be removed and prepared for starting without
blocking on long pulls.
2014-07-24 13:47:51 -07:00
Danny Jones bfa4642055 Adds a flag to specify root working directory.
--root_dir specifies the directory kubelet will use for it's
procedures. Currently used for volume mounts.
2014-07-24 13:04:05 -07:00
Eric Tune ded67ead1e Make Kubelet type members private and provide New functions. 2014-07-22 14:40:59 -07:00
Clayton Coleman 7767c2a2ac Switch the Kubelet to use kubelet/config
Also transfer the Kubelet from using ContainerManifest.ID to source specific
identifiers with namespacing.  Move goroutine behavior out of kubelet/ and
into integration.go and cmd/kubelet/kubelet.go for better isolation.
2014-07-21 21:27:26 -04:00
Kelsey Hightower 67efa0a53a Add test cases for Docker image name parsing and cleanup
The tests for Docker image name parsing are repetitive and do not
cover enough test cases.

Refactor the tests to use table testing and add additional test cases.
2014-07-20 19:22:54 -07:00
Daniel Smith 05f01a3654 Revert "assorted formatting and typo fixes" 2014-07-18 17:16:30 -07:00
Daniel Smith 211f6b312f Merge pull request #520 from jonboulle/master
assorted formatting and typo fixes
2014-07-18 17:15:30 -07:00
Jonathan Boulle 9e63c3a633 assorted formatting and typo fixes 2014-07-18 13:02:59 -07:00
Tim Hockin fda69bcca2 Merge pull request #452 from Sarsate/extvol-hostdir
Initial framework for external volumes.
2014-07-18 12:44:38 -07:00
Danny Jones bb2843498d API modified to use source; now supports EmptyDirectory
API is now modified to use a Source struct to handle multiple volumes.

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

Currently supports bare host directory mounts.

Modifies the API to support host directory mounts from Volumes
instead of VolumeMounts.
2014-07-17 10:08:45 -07:00
Clayton Coleman 185a97b037 Make container lookup in the Kubelet cleaner
Reduce duplicate calls to list lookups for parallel go routines.
2014-07-16 14:12:13 -04:00
Yuki Sonoda (Yugui) c1eee00a57 Correct an error message 2014-07-16 21:33:26 +09:00
Daniel Smith c7d31fabbc Merge pull request #480 from monnand/cadvisor-update-1
Update kubelet package to use most recent cAdvisor's code
2014-07-15 18:25:54 -07:00
Daniel Smith 3d63d733e3 Merge pull request #456 from brendandburns/health
Move health checking logic out to a utility. Add a minion registry that health checks.
2014-07-15 15:39:21 -07:00
Brendan Burns c5db874090 Addressed comments. 2014-07-15 15:16:36 -07:00
Nan Deng 30bc2af9f1 gofmt -r "GetContainerStats->GetContainerInfo" 2014-07-15 11:53:00 -07:00
Nan Deng 8c573ee727 Update to latest cAdvisor and use data structures directly from cAdvisor 2014-07-15 11:53:00 -07:00
Kouhei Ueno bba23e28c2 Define EtcdErrorCode as constant and reuse EtcdError instances 2014-07-15 20:48:06 +09:00
Brendan Burns 62dfc74606 Move health checking logic out to a utility.
Add a minion registry that health checks.
2014-07-14 22:38:28 -07:00
Brendan Burns 1b4dfe7d14 Move from bool to HealthCheckStatus 2014-07-11 10:15:31 -07:00
Brendan Burns 6312ffebcf Address some comments from thockin@ 2014-07-11 10:14:45 -07:00
Yuki Sonoda (Yugui) 45b48e1668 Fixes golint errors in pkg/kubelet 2014-07-10 21:57:26 +09:00
Tim Hockin b0b9606aea Merge pull request #365 from brendandburns/health
add http health checks.
2014-07-09 16:14:30 -07:00
brendandburns 4c309862e3 Merge pull request #371 from thockin/valid3
Accumulate errors during validation
2014-07-09 13:36:37 -07:00
Tim Hockin 95fb7bc1ae Merge pull request #379 from brendandburns/host
Add support for host up binding to the API (and kubelet)
2014-07-09 12:54:32 -07:00
Brendan Burns 41c6680943 add http health checks. 2014-07-09 12:01:43 -07:00
Dan Mace 00df67b0bf Namespace "local" volume mounts by ContainerManifest ID on disk
Local volume mounts in a pod should result in host mounted directories
which are namespaced by the ContainerManifest ID.
2014-07-09 14:45:22 -04:00
Brendan Burns 4b22f7a462 Add support for host ip binding to the API (and kubelet) 2014-07-09 11:13:38 -07:00
Tim Hockin 54790080b3 Accumulate validation errors
Rather than report the first error, accumulate all errors and report them all
at once.
2014-07-09 07:55:15 -07:00
Tim Hockin 2eb2784725 Validation of HostPorts and Manifest IDs
Check that HostPorts are unique across the whole host and that Manifest IDs
are unique.
2014-07-08 15:22:47 -07:00
Tim Hockin 92cf6662ed Merge pull request #351 from discordianfish/use-api-for-pull
Use api for pulling images instead of shelling out
2014-07-08 09:08:12 -07:00
Johannes 'fish' Ziemke 3fa6c9671d Use docker client lib instead of binary for pulls 2014-07-08 12:21:39 +02:00
brendandburns d386c02dfd Merge pull request #328 from monnand/root-container
Get root container stats from cAdvisor
2014-07-02 22:57:28 -07:00
Nan Deng 42fd4383a1 Get machine stats from cAdvisor 2014-07-02 16:59:50 -07:00
Daniel Smith a6144f656c Move etcd helpers to tools package so they can depend on api package. Add ResourceVersion, hook it up to etcd index to get atomic PUTs. 2014-07-02 15:42:05 -07:00
Tim Hockin d3da6b168e nit: s/Id/ID/ for go style 2014-07-02 11:21:29 -07:00
Victor Marmol e29ff512fc Add a New() for Kubelet.
This will make it easier to add new fields that need to be initialized. Also refactors tests to ease making fake Kubelets.
2014-07-01 19:23:26 -07:00
brendandburns 67eae1f645 Merge pull request #331 from dchen1107/cleanup
Fixed the data race found in kubelet_test.go
2014-07-01 15:30:36 -07:00
Dawn Chen 17bad028ce Fixed the data race found in kubelet_test.go 2014-07-01 15:15:40 -07:00
Clayton Coleman 15c96508a9 Use ID instead of Id (go style) everywhere
Fixes #278
2014-07-01 13:16:47 -04:00
Justin Huff 28afe91855 Allow empty lists when polling manifests via http 2014-06-27 23:46:02 -07:00
Daniel Smith 54ad4582e2 Fix unstable map ordering issue in test 2014-06-27 15:40:23 -07:00
Justin Huff 81663fdb80 Introduce a type for docker container ids 2014-06-27 14:03:50 -07:00
Justin Huff fe0066d2e4 Cleaning up container ID handling inside kubelet 2014-06-27 14:03:50 -07:00
Justin Huff 6fdebd6560 Watch and Get on the same Etcd key.
Kubelet was killing existing pods when creating a new one because new
files were being set as /registry/hosts/<machine>/pods/<id> and
/registry/hosts/<machine>/kubelet.
2014-06-26 18:59:49 -07:00
Daniel Smith be39c3d646 Fix crash in test 2014-06-26 16:56:02 -07:00
Daniel Smith f7968ce00b Make integration test the manifest url feature. Make kubelet's docker pull command testable. 2014-06-24 16:57:35 -07:00
Daniel Smith 6900431b13 Add kubelet testing to integration test. Test that kubelet makes the requested containers. Check that the url manifest feature works. 2014-06-24 15:14:40 -07:00
Daniel Smith 9d8a16f180 Make manifest url reader accept both single and multiple manifests. 2014-06-24 15:13:18 -07:00
Tim Hockin 7622bb871b Rename Kubelet.Client -> EtcdClient
All the other *Client members are so named.  Makes easier reading.
2014-06-24 13:17:38 -07:00
Daniel Smith 77af24e7dc manifest_url needs to take a single ContainerManifest. 2014-06-23 15:06:28 -07:00
Daniel Smith b850d36166 Fix boilerplate everywhere 2014-06-23 11:32:11 -07:00
Justin Huff 1441a84673 Cleanup handling of config channels in RunSyncLoop by passing a map
instead of a bunch of vars.
2014-06-22 09:32:49 -07:00
Justin Huff 460821e370 Add a k8s prefix to docker containers that we manage 2014-06-21 13:30:10 -07:00
Justin Huff ecf7d11477 Make config dir handling deterministic 2014-06-20 09:31:52 -07:00