Kubernetes SIG Windows, 13 Mar 2018

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From YouTube: Kubernetes SIG Windows 20180313

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Kubernetes SIG Windows 20180313

A

But okay I got the recording, started, I might double check and see if there is any other agenda stuff I think the main thing is just continuing on the remaining stuff for 1.10.

A

Okay, it doesn't look like anybody added anything to the meeting notes for this week, so I had talked to to to was Adelina and in Claudia earlier today. So we've got some good progress on the testing effort, so I want to make sure that we leave some time for that.

A

Okay, Michael I'm, doing ice, I just started the recording a second ago, so we've got a testing update and we wanted to get some opinions on things before we take them to save you testing cool. Did you have any other agendas stuff for today? I know.

B

It looks like a lot of the PR that we had commercial assed week, so that was that's good to kind of see that the progress moving along, including some of our documentation updates. So I, was glad that both PR by Alene and as well as the PR on on CRI one in so that was great, a lot of fluid of activity and and on that I. Don't have any specific update.

A

Okay, so one thing related to to Allen's plugin was I think we may still need to update the docs around that I've been looking at two different sets of documentation, one for a juror and one for this dude's. A public Docs use n SS m to launch the Q blood today.

A

No okay. Do we want to recommend that as the default for 1.10 no.

C

I would go for the service creation, so is he that accident give an example, I don't know if we should put it into the standard Windows deployment I mean starting guide or somewhere else. Okay,.

A

I was double checking: what's there and ISO windows so setup, there's nothing about that over. There looks like the Windows setup guide still has a stark here that ps1.

C

So should we update it in the starting guide for Windows, yeah I think so.

A

It's probably going to be the best option. There.

C

Can we add other country for the windows, no, no, no, no advance configured, something.

C

There would be another option, so basically have another. So starting guide is one thing so just to enable your own windows know to communicate with Cooper mentions and so on and another one which is more specific. If you want to run services, target services queried API server to see if you're there or not. Is that make any sense.

A

So I think I think I missed the first part of that. So.

C

The idea is so we have a starting guide, which is okay, so basically, you have a node from zero to hero, so, okay, the couplet up and running so on so forth, was wondering thing if we could add another documentation, link which is referenced by the starting guide and another. We should point to I, don't know advanced configuration, open options and troubleshooting guide, for example, how to interrogate your couplet to see if it's up and running services, I.

A

Think we can still add it to the same document.

A

So I was just looking back over it and we have a list of next steps and resources, and so I think that and then there's a like to troubleshooting and common problems. So I think that we could still add something at the end of it under the heading of automatically starting the tequila and cube proxy after reboot.

C

My only my only problem with this one is, the document will be a bit bloated, so it will be a bit longer than normal. People will like to read.

C

This is more of a nitpicking potato.

A

The other alternative is, we could just update the star cube, let's grab to actually register the service.

C

Would go with the documentation on that because maybe different people want to I, don't know let the dependency to talk, for example, of put in different start flags and so on.

C

A

Did you have any opinion Robert since you're the last one that was updating the doc.

D

Not really I mean I can see going out away with that of like start cool it doing that or I. Think I would really want to maintain the current behavior first or cool it.

A

Okay, even though it doesn't survive a reboot.

D

Yeah I mean I think that we would want to set that as like a deprecated method of you know if you want to keep things simple and not worry about Windows services, but I can't see much use case for continuing using that you talked about using the script yeah.

A

Using the script.

D

A

It okay, why do I take this as a follow up? I want to talk to to David and the other people that wrote that script, because it does appear to be pulling down some additional config information and, and so I'll see if they want to see if there's any corner cases that we would miss. If we just update the script to register the service instead,.

A

Create a install service script and just include it in that repo. For now.

C

That's true my problem with just having a script which registered the service is you get some default value which they use that I don't know if he checks them or not. That's my only issue with a startup script. That's registered no service.

C

That's why I would rather go to documentation, wrote in which we explained that you can make a service dependent on another service, put in three types of restart configurations: the timing in between and so on.

A

C

But we can add documentation to the starting guide, section I think and we see where we go from there. I don't know, maybe move it to another page or not. We can see that in the future the only problem would be if we update the documentation. I think there was the GA for the documentation already.

C

B

Pretty sure that if we need to make a Doc's update, I, don't think that were the g88 will matter, I mean what documentation not abandoned. Robert has done that so yeah, that's not a problem.

D

The dogs like the docs, like I, think that we only need to put extra thought into it if it needs to be tied to a release but like we can go either way.

C

In this case, we need to tie it to the one done, because the first that functionality.

A

Yeah 1.10 release is coming up pretty soon, so I think. Maybe what we should do is go ahead and and give it another try and and like you started, start a draft and then we can make a decision next week, because if we start a PR next week, then it will get published after 1.10 anyway,.

C

Well, we could probably do a pay up this week and see if it gets him by the way. What.

A

Okay, so did load right that PR, that PR or gentlemen of whatever one of us to do it. We.

C

Could grab a big I mean it's part of the commit message anyway, but I don't think somebody will look at the content message on how to create the service.

A

Okay, alright, so I guess, let's just move on from there. I can find the right Trello board.

A

Did you have any updates David related to the CNI plugins? Was there anything that needs to get in as part of 110 or Dinesh.

E

Something from my aunt no.

A

Okay, all right! Well, I! Guess: let's move on to the the testing!

A

So did you want to cover that.

F

Microphone wasn't working okay, so we are in an effort to have entrant tests running on kubernetes classes with Windows nodes. For that several changes need to be made into the tests themselves and some to some tests. New images for windows need to be generated, images that themselves would use and there's considerable work to be done in Cube test as known as a tool they use to to spawn clusters and system where we intend to add ACS support, so we can spawn clusters on Asia now.

F

The point is that we have quite an overview and some good progress on all the bits and pieces and.

F

We basically want to go to suggesting and present all this effort, so basically we know from them how they want to proceed. If you have suggestions and stuff like that, we want to ask for some fire one. The next meetings.

F

Obviously, for this effort we want some support from from cig windows if we need support for seed windows, and so if anyone you would like join us when we propose that meeting to to suggesting that they'll be great, because they're probably gonna be questions about unless grantees work and all the thing I mean.

B

They definitely include me, I know Patrick, do you know coming as well, so we can definitely be at at the meeting and kind of communicate both the importance of this person. You know what you know as the community is rallying behind Windows and you're, getting more and more users I mean there's. This tremendous need for this type of testing, so can definitely provide the business value behind this and kind of hop, articulate our goals here.

A

And I'm gonna see if I can get get some people from from the azure team to join as well, because some of the some of this topic does cross over into testing on as versus gke. Because we want to be running tests in both places. But we're bringing up the windows tests on the very first. Because that's where we have the resources.

B

That make sense: okay,.

F

So basically, then talk to the see testing on slack you guys what this I did to the discussion: okay, okay,.

A

A

Then I was realized. I forgot to share the test results from last week, so I'll go ahead and add those into last week's and those.

A

So I'll get that in there so I think. That's all all we had for or all that I had on my list for today. I'm did you have anything Michael, no.

B

Nothing else, thank you. Thank you for starting the meeting. Sorry I was late.

B

Alright, I guess: that's it I.

G

H

A question for you guys.

G

If I may it's regarding simek's, maybe you have some opinions from ideas. I've been having issue annex --an, that's basically that this basically required some volume of successor for winners containers, and basically you read from some files inside of them, so metadata files said about my annotations situation for memory it was so on and so forth. The issue is that, even though the one is a properly mounted, the symlinks did not work properly inside the containers.

G

One way I found to make it work would be to create the same links with the full, which is to be expected to be inside the container, and basically that would mean that the semen's would probably work for the container but will no longer work properly outside of it, because they are currently made with a relative path.

G

So do you have any ideas on this.

C

Thing there was somebody working on it a long time ago, but the issue there is you can only have a holding, which is shared between the host and not on symlink. That can solve your issue or not.

A

So maybe maybe you know this Michael I know that sometime last year there was someone from aprender that was working on, but I think they were doing either hard links or copies to work around this problem. Do you have any history there yeah.

B

So Sergey too had tried to basically do a copy, which would not be an atomic reaction, and you know the the results were they were not promising. So that didn't really work very well. I believe that when we we did that the non atomic operation you basically either we get failure or we get downtime and it wasn't really a viable solution. So we basically scratch that and we're waiting for. You know the the windows support to come in before you can actually call that the official solution. Okay,.

A

So I guess the next step here is I'm working on looking at the current Windows Server insider, build I. Believe it's one, seven one zero one! It's a bit number I know that I'm over here at Microsoft, we've been making some changes to better support symlinks in containers so I'll see. If I can get our recommended build to test.

A

I know there were some bug fixes in either January or February, so I'll see if they're in that build and that we can see if that results the issue or not, and then, if not off, to take it back to the windows, engineering see what I can get done for relative symlinks.

A

As far as absolute symlinks.

A

Actually, let me get a clarification here. Is this a relative sim link to a directory or relative sim link to a file.

G

It's the relative sibling to a directory and files themselves. A relative sim rings to that seemly directory that makes sense. I can probably post the on example, vo FM, a few seconds.

A

But that file is still within that directory. It's not in a parent directory on the host right.

H

A

Yeah, if you could post a sample that would that would be helpful. Yeah.

H

Sure just few seconds Michael, oh I, remember.

C

That talk that Harling, what why didn't it become a hard link between the container and the host. You remember.

B

Bob, do you remember that discussion or did that option not.

E

Really I am looking at the darker issue. I can.

B

Lean a member tells me on you know like on that I. Don't remember, but.

E

A

Okay, yeah the issue: five two four one nine seems to seems to be tracking it, so I took another look and see if that builds viable or if it's gonna need a newer one.

A

So yeah well look into the details on that and then sure share an update on the slack channel. Then Oh.

B

Taylor replied on this too: okay.

B

All right, that's it then patek. If you can email me the the videos that way I can upload it that'd be great. Thank you all for attending and we'll see you guys next week, sorry I was late.