Move client/unversioned/remotecommand to client-go #41331

dshulyak · 2017-02-13T15:14:07Z

Module remotecommand originally part of kubernetes/pkg/client/unversioned was moved
to client-go/tools, and will be used as authoritative in kubectl, e2e and other places.

Module remotecommand relies on util/exec module which was copied to client-go/pkg/util

k8s-reviewable · 2017-02-13T15:14:14Z

This change is

dshulyak · 2017-02-13T15:14:35Z

@caesarxuchao Can you take a look please?

dshulyak · 2017-02-14T12:04:49Z

@caesarxuchao Hello, can you tell me when you will have time to take a look at this PR? I have some weird results, for example apimachinery is removed from _vendor, and i am not able to figure out whether i should add it back manually or not..

caesarxuchao · 2017-02-14T13:33:35Z

staging/copy.sh

@@ -125,6 +127,7 @@ rm -rf "${CLIENT_REPO_TEMP}"/vendor/k8s.io/kubernetes
 # client-go will share the vendor of the main repo for now. When client-go
 # becomes a standalone repo, it will have its own vendor
 mv "${CLIENT_REPO_TEMP}"/vendor "${CLIENT_REPO_TEMP}"/_vendor
+rm -r "${CLIENT_REPO_TEMP}"/_vendor/github.com/docker/docker/project/


Why do you need to manually remove this folder?

this folder containers symlink that references file that is not copied

caesarxuchao · 2017-02-14T13:35:35Z

staging/src/k8s.io/client-go/cmd/kubeadm/app/apis/kubeadm/doc.go

@@ -0,0 +1,18 @@
+/*


Why does kubeadm get imported?

caesarxuchao · 2017-02-14T13:37:44Z

staging/src/k8s.io/client-go/federation/apis/federation/doc.go

@@ -0,0 +1,17 @@
+/*


Looks like remotecommand imports federation types as well, can we remove the dependency on federation and kubeadm types?

yes, looks like i can

caesarxuchao · 2017-02-14T13:44:42Z

staging/src/k8s.io/client-go/pkg/kubelet/qos/doc.go

@@ -0,0 +1,25 @@
+/*


We are trying to remove the packages in /pkg/kubelet, which are are duplicate packages between kuberentes and client-go. Are there other users of pkg/kubelet/qos except for client-go? If so, we can move this package to client-go, and remove the original copy. cc @deads2k @sttts

deads2k · 2017-02-14T13:51:27Z

No more copies. If this needs to move, we aren't going to make a copy of it. The authoritative (and only) copy should be in staging/client-go.

caesarxuchao · 2017-02-14T13:54:32Z

@dshulyak i think it's correct that apimachinery is removed from vendor/. deads2k ran copy.sh once yesterday. You can rebase your PR so that you'll see less changes.

sttts · 2017-02-14T14:02:52Z

Why is remotecommand needed in client-go? Everything we move there we effectively declare to be a public, stable API (at least within minor versions, but still). Hence, what is the use-case?

Moreover, kubelet/server/remotecommand and pkg/util/term with those tons of dependencies move too?

IMO we need better separation, i.e. a number of dependencies cut before moving it.

dshulyak · 2017-02-14T14:08:04Z

@sttts I am using exec in several k8s related projects to run different tests. I think there is definitely demand for such thing in client kubernetes/client-go#45

I can check what can be done to cut those dependencies before moving it

sttts · 2017-02-14T14:09:11Z

@dshulyak please try to cut those terminal related dependencies and of course the kubelet dep.

sttts · 2017-02-15T11:40:58Z

pkg/util/remotecommand/constants.go

@@ -0,0 +1,53 @@
+/*


pkg/util is an odd location for this. It's actually part of the API. As we don't have a better location for this, moving it to client-go would be fine IMO.

the same for pkg/util/exec, i can't find good place for it

perhaps pkg/util/remotecommand should be in apimachinery, i see similar comment for port forwarding from @deads2k

dshulyak · 2017-02-15T14:01:09Z

@k8s-bot verify test this

dshulyak · 2017-02-15T14:08:56Z

@sttts @deads2k @caesarxuchao I think this change now in good shape. Please review it when you will have time.

I need to move pkg/util/remotecommand/constants.go to apimachinery (the same as portforward/constants.go) and unify it with kubelet. I will do it in another change. Also I am not sure what is the proper place for pkg/util/exec, so I just placed it in client-go repo

dshulyak · 2017-02-16T08:33:38Z

@k8s-bot test this

dshulyak · 2017-02-16T08:58:34Z

I moved part of this PR into separate one, for easier review, #41543. Will rebase afterwards

caesarxuchao · 2017-04-03T21:41:39Z

Sorry I have been ignoring the PR. I'm taking another look now.

caesarxuchao · 2017-04-04T01:08:21Z

I left a few comments in #41543. Let's get that merged first.

caesarxuchao · 2017-05-10T20:08:17Z

/release-note-none

caesarxuchao · 2017-05-10T20:08:24Z

/lgtm
/approve

caesarxuchao · 2017-05-10T20:08:31Z

Thanks @dshulyak !

caesarxuchao · 2017-05-10T19:44:55Z

staging/src/k8s.io/client-go/util/exec/exec.go

+// ExitError is an interface that presents an API similar to os.ProcessState, which is
+// what ExitError from os/exec is. This is designed to make testing a bit easier and
+// probably loses some of the cross-platform properties of the underlying library.
+type ExitError interface {


Unfortunately this package is copied. We can remove the original copy in the kubernetes repo, that could be another PR.

@dshulyak let me know if you are up for a follow-up.

@caesarxuchao i copied only parts that were used in remotecommand, do you think it makes sense to move the whole pkg/util/exec? if so, i can do it ofcourse

I see. Can we move ExitError to the remotecmd package? (removing the copy in client-go/util/exec/exec.go and in kubernetes/util/exec/exec.go). In a followup PR is fine. There are not many references to ExitError:

$ git grep -l "CodeExitError" | grep -v pkg/util/exec pkg/client/unversioned/remotecommand/v4.go pkg/kubectl/cmd/run.go pkg/kubectl/cmd/util/helpers_test.go pkg/kubelet/remote/remote_runtime.go test/e2e/framework/util.go

@dshulyak please let me know if you are interested to do the follow up

@caesarxuchao sure, i will do it

Thanks, please assign me to the PR when it's out.

lavalamp · 2017-05-12T22:45:09Z

/approve

caesarxuchao · 2017-05-13T00:03:54Z

@k8s-bot unit test this

caesarxuchao · 2017-05-13T00:04:04Z

@k8s-bot gce etcd3 e2e test this

Module remotecommand originally part of kubernetes/pkg/client/unversioned was moved to client-go/tools, and will be used as authoritative in kubectl, e2e and other places. Module remotecommand relies on util/exec module which will be copied to client-go/pkg/util

client-go/pkt/util was removed in favor of client-go util, which consists only from CodeExitError and ExitError interface

k8s-ci-robot · 2017-05-15T14:40:03Z

@dshulyak: The following test(s) failed:

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Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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caesarxuchao · 2017-05-15T17:15:37Z

@k8s-bot kops aws e2e test this

caesarxuchao · 2017-05-15T17:36:52Z

/lgtm

k8s-github-robot · 2017-05-15T17:38:57Z

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: caesarxuchao, dshulyak, lavalamp

Needs approval from an approver in each of these OWNERS Files:

~~hack/OWNERS~~ [lavalamp]
~~pkg/OWNERS~~ [lavalamp]
~~staging/src/k8s.io/client-go/OWNERS~~ [caesarxuchao,lavalamp]
~~test/OWNERS~~ [lavalamp]

You can indicate your approval by writing /approve in a comment
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k8s-github-robot · 2017-05-15T20:25:42Z

Automatic merge from submit-queue (batch tested with PRs 41331, 45591, 45600, 45176, 45658)

k8s-ci-robot added the cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. label Feb 13, 2017

k8s-github-robot assigned mwielgus Feb 13, 2017

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caesarxuchao assigned caesarxuchao and unassigned mwielgus Feb 14, 2017

dshulyak force-pushed the import_remotecommand branch from 3c8532f to 3de6b88 Compare February 14, 2017 12:02

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dshulyak force-pushed the import_remotecommand branch from 1d8cec2 to 6bbd26a Compare February 15, 2017 11:28

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dshulyak force-pushed the import_remotecommand branch from 6bbd26a to 7952350 Compare February 15, 2017 12:46

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dshulyak force-pushed the import_remotecommand branch from 3ad0b9c to 7da94fb Compare May 10, 2017 13:10

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dshulyak added 4 commits May 15, 2017 16:28

Add exec module to client-go/util only with required code

8574bc5

client-go/pkt/util was removed in favor of client-go util, which consists only from CodeExitError and ExitError interface

Fix golint and godeps verification

c0a3e9a

Add remotecommand to client-go/pkg/api visibility rules

64d98c2

dshulyak force-pushed the import_remotecommand branch from 7da94fb to e8aa65a Compare May 15, 2017 13:29

k8s-github-robot removed lgtm "Looks good to me", indicates that a PR is ready to be merged. needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. labels May 15, 2017

Use streaming constants from pkg/api/v1 instead of pkg/api

a713604

dshulyak force-pushed the import_remotecommand branch from e8aa65a to a713604 Compare May 15, 2017 14:00

k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label May 15, 2017

k8s-github-robot merged commit f6bcd28 into kubernetes:master May 15, 2017

dshulyak mentioned this pull request Jun 7, 2017

Move CodeExitError to remocommand package and remove unnecessary copies #47111

Closed

Move client/unversioned/remotecommand to client-go #41331

Move client/unversioned/remotecommand to client-go #41331

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