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887 Commits

Author SHA1 Message Date
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
Justin Huff
d204f76484 Add config dir support to kubelet 2014-06-20 09:31:52 -07:00
Justin Huff
f49b9c2429 Fix merge conflicts 2014-06-20 09:31:18 -07:00
Daniel Smith
8a13e5300d Merge pull request #182 from brendandburns/net 
Update IP assignment to be per-pod, not per-container
 2014-06-20 09:06:34 -07:00
brendandburns
3a9a3b1114 Merge pull request #174 from monnand/kubelet-cadvisor 
Letting kubelet retrieve container stats from cAdvisor
 2014-06-20 08:36:22 -07:00
brendandburns
0c8d556afb Fix IP affinity to be per-pod, not per-container. 2014-06-19 23:09:21 -07:00
brendandburns
168ec29f54 Merge pull request #178 from vmarmol/add-external-mounts 
Adding support for external mounts
 2014-06-19 21:28:40 -07:00
Victor Marmol
e794f539d8 Adding support for external mounts 2014-06-19 21:14:19 -07:00
Brendan Burns
ae9fce1358 Fix the container manifest to so that Command is an array, not a string. 2014-06-19 20:21:20 -07:00
Nan Deng
d001110df1 gofmt -s -w -l 2014-06-19 20:59:20 +00:00
Nan Deng
1b9cb5d501 more unit test 2014-06-19 20:44:53 +00:00
Nan Deng
b01a12fe34 more unit test for GetContainerStats() 2014-06-19 20:44:53 +00:00
Nan Deng
3080262f12 unit test for cadvisor 2014-06-19 20:44:53 +00:00
Daniel Smith
65d6280936 Move etcd helper to util so it can be used elsewhere, too 2014-06-18 13:10:39 -07:00
Brendan Burns
76148dc85f gofmt 2014-06-15 21:57:29 -07:00
Brendan Burns
2e68d087a9 Add udp support. 2014-06-15 21:19:35 -07:00
Brendan Burns
482a360f9e Make all error strings lower case, for readability. 2014-06-13 15:45:19 -07:00
Brendan Burns
d393838dfd Only manage containers with '--' in the name. 2014-06-13 12:09:48 -07:00
brendandburns
f053a49988 Merge pull request #71 from brendandburns/container_info 
Fix some problems in container info handling if the container's no present.
 2014-06-12 20:17:05 -07:00
Joe Beda
353698558d gofmt -s -w cmd/ pkg/ 2014-06-12 18:34:47 -07:00
Brendan Burns
b05bc22a62 Refactor the kubelet for testability. 
Add unit tests.  Test coverage to 56.9%
 2014-06-12 14:44:46 -07:00
Johan Euphrosine
4f6bed03ae gofmt -s pkg/ cmd/ 2014-06-12 14:16:19 -07:00
Brendan Burns
d83f407e43 Fix tests. 2014-06-09 16:50:44 -07:00
Joe Beda
2c4b3a562c First commit 2014-06-06 16:40:48 -07:00