cluster/gce/coreos: Add metadata-service in node.yaml

[yifan-gu]

/cc @dchen1107 @vmarmol @jonboulle @bakins

Actually I found the metadata service is already started in old node.yaml, just updated with more specific service/socket files.
This saves us from start metadata service manually in #7465

[yifan-gu]

Also this one uses the 0.5.4 version rkt metadata service.
Tested with kube-up.sh, looks good.
Let me run e2e.

[jonboulle]

lgtm

[vmarmol]

LGTM, any reason to run them this way instead of how we did before?

[yifan-gu]

@vmarmol One is we were not running the new version of rkt metadata service. Two is I think named service is more manageable. And three is it's now socket activated.

[vmarmol]

Did you get a chance to test btw? While we wait for Travis

[yifan-gu]

@vmarmol Yes, I will run e2e

[vmarmol]

More than anything that the CoreOS cluster comes up :) @dchen1107 had the instructions in her PR

[yifan-gu]

e2e agains gce/debian passed:

Ran 36 of 41 Specs in 1086.721 seconds
SUCCESS! -- 36 Passed | 0 Failed | 1 Pending | 4 Skipped I0429 16:19:02.608573   18082 driver.go:96] All tests pass
2015/04/29 16:19:02 Running: teardown
Starting cluster using os distro: debian
Project: coreos-gce-testing
Zone: us-central1-b
Shutting down test cluster in background.

build/push-devel-build.sh passed:

TOTAL: 30 objects, 692900767 bytes (660.8 MiB)

Running e2e agains gce/coreos

[zmerlynn]

FWIW, don't worry too much about the push-devel-build part. I was merely pointing that out in her PR because of a breaking issue in the release flow I noticed there. In typical changes (i.e. not renaming a cluster/* file), it's not something you need to run.

[yifan-gu]

@zmerlynn Sounds good! Thanks!

[yifan-gu]

@vmarmol I can't pass e2e on coreos cluster yet, I think that's not related to this PR.

cc @bakins We haven't yet successfully passed e2e on coreos cluster yet, right?

[vmarmol]

Yeah I don't think we have :) there are some tests that are Docker-specific so I wouldn't expect them to pass just yet.

I think we're good with this PR, will merge. Thanks @yifan-gu!

[yifan-gu]

Thanks @vmarmol !