Jenkins Java 10+ Hackathon, 19 Jun 2018

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From YouTube: Jenkins Hackathon: Java 10+ Day 2 Sync-up

Description

Project doc: https://docs.google.com/document/d/1ed6wFOlq4cWrSL6UkCSzFbaY80AT-sk8ncB4Fz5QXyM/edit?usp=sharing

- Status updates from teams

A

Now, on excellent welcome everyone. This is our second day sync up for the drinkin's Java 10 hackathon we're just gonna go through. This would be a pretty short meeting or maybe do a couple demos of what we've been doing. People going to talk about their status in general and demos, and if you're watching this live, you can ask questions on the Jenkins CI drinkin's giver channel or on IRC at Jenkins Hawk house Olek.

B

A

So started: yeah yeah.

B

I'll just share my screen and then we have a status update, mm-hmm.

B

Okay, do you see the matrix? Yes, I do, okay, so then yep just in case everybody is interested here. We post links to the yesterday's opening slides. So the way you can find all introductory information, including how to run Jenkins etc, and you can also find the recording of the previous meeting. So if you are missing some information just go to these links and you will find a everywhere and now we just proceed to the status update.

B

So we have a deep Google document is all the current updates and we can start from Sam since he isn't released. Okay. Yesterday.

C

I spent some time working on looking at pipeline compatibility and doing a more exhaustive test. I have good news, barring one issue, I fixed with declarative, it seems like everything. I can find. With my plan works like shared libraries, multi branch from SCM I'm using all of the latest experimental builds and the latest experimental Java 10 core in it. It works. I only had to upgrade upgrade groovy.

A

One side: sorry, that's me living in city and.

C

Since liam is a pyromaniac and sorry I'm.

A

C

I'm sure he thought the fire I so I think my my next order of business is moving on to I'm, trying to fix some of the issues with unit tests and building, since we can't currently run unit tests for pipeline plugins, which have a lot of kind of special cases.

C

Currently, we can't pick up the war exploder class from the test, harness and I discovered, trying to run tests under Java 10 that if you run the maven, compile your java 10 that fails. mmm I'm gonna try to first fix compiling under Java 10, which is related to some sort of annotation issue and then use that to start getting the unit tests working and then I also found that there is a memory leak introduced by the surgeon of groovy.

C

So I'm gonna work on that mmm I'd love to have someone else to cooperate with to work on. Maybe some of the palm stopped to get the Maven builds in general, working with multi module releases or multi multi release jars or someone else start hacking on that and yeah I think we're. We made a lot more progress when I expected.

C

B

D

You all right Damien, so yeah I was looking into those manifest issues. I wasn't able to reproduce any problems. Locally. I tried to you know, isolate everything outside of Jenkins reproduce it, but I couldn't because I can still reproduce it in docker. So I'm gonna keep looking into that a little bit district grow out. What's going on. Also, yes, we're just helping to finalize a couple of PRS.

D

You know just fixing some of the tests and stuff for the other changes we made. That's all for me. I might look at the you know, making maven HPI plugin work under java 10 about Audrey.

B

Yeah, thank you anything else. That's all okay! Then it's me in the least so yeah I continued working on a pipeline enablement, and so in order to simplify adopted things, we needed some patches.

B

So, firstly, we needed to release pipeline support, plug-in incrementals so that it would be available for early adopters and it caused the chain of things so, for example, at support of incremental releases in docker images also has been a new Java 10 and Java 11 images for experimental releases, yep and then finally, I worked with salmon order to get pipeline support, patches, increment edified and we've done it and yet the meinen out commodity.

B

Now you can easily build things in docker this using new such of incremental releases and the final implementation for that was Jenkins, experimental or blow Shinji. Deke 10 plugin are not plug-in a docker image. So now, if you want to try out edging his pipeline and if you want to try ablution you just can draw, you can just run this image or something like that.

B

So you can just.

B

Blow ssin click enter and then the person is already allocated but yeah. This is a very D, so you just run the imagery and you get everything out of the box with all patches. We have a bite.

B

We I'm s: okay, yeah I'm, just running another demo, so I do not mess up with things like edit yesterday, yeah, okay, but yeah everything expect so no plane his local Jenkins milk, no plane his local pipeline bills as an adopter. You just go and run images now and I will subject QuickStart guide so now its explicit here, everyone yeah. Regarding the rest, yes, some said lots of pipeline things started magically working thanks to keeps us by Sam in denim I also updated.

B

My demo Jenkins can keep his coat edema and what I can show now that now you can build a Jenkins plugins on my Jenkins master running in Java 10 and include something like 50 different plugins and everything works like in the charm, including unit testing, including pipeline, including reporting, cartographer publishing. So we've got a great progress and it's just a number of patches by Sam Darrin, meaning in order to get it running so pipeline stories looks really well and it's available for adoption, so yeah this.

B

My main summary I have no idea what I would continue working on tomorrow, likely some core patches and maybe obesity, a trapeze awesome. Okay, so then Nick. Why is currently yeah.

E

So, on my side, I've been working on removing the explicit access to fills your reflection, so doing so, I try to apply to stopler and doly, so I had to dive into into the rabbit hole. So a really feeling out here, Allison mundo room here, because I had to change stopler doing so, hi had to make a fix to animal sniffer and which one is maven plugin, so I have to fix maven, plug-in tools, and this one also depends on Java 9 support on enforcer rules. So this just bits is already implemented, but not release.

E

So I've asked Baptist, who made the last three reasons on this maven components to do a release process and then I will be able to get steps back to get all those pull requests sent to bust maven and Jenkins community. Okay,.

B

Thank you, one of the things that yeah you also work on animal sniffer and what I know that Oliver Tommy has also started working on IDing him on this topic. Okay, so you are aligned.

B

Okay, thank you! So then the Guardian John polo he continued experimenting with easy Jenkins. He was a bit delayed because we needed to release all this to link in order to enable this local packaging so that it would be able to build it with standard images, but now I hope he's unblocked so forward to see results and he's also working to do some experimental packages, for example for your tour. It's one of embedded software development tools, and we also he and his exploratory testing for the bits.

B

Okay homeless do we have online, so we have Tracy online yeah.

F

Hello looks like this was a good day for me to not do any hacking and wait for the goodies, but yet tomorrow, I'll be back as it and coming in again pretty much as a newbie with friends or friend, um so yeah basing seeing what we can get to tomorrow. Nor do any newbies out there fancy joining. Please give me a shout: okay,.

B

So actually, if you have a many new bits joining tomorrow, you can have a session another to help this mutual enable month. So, for example, on the morning call on evening I can we can show how to run everything and answer questions yeah.

F

That would be great.

B

Okay, I will get it scheduled.

B

Just later, yeah just.

F

Explore it, you testing, but if we could see what's reasonable to set up in a dev environment as well, that would be great okay,.

B

Actually, we can even do it to be the status update if you want so we have times photo located. So why not yeah, okay, so oils lime? You.

A

Know, I don't have anything to report aside from just working on a document yesterday and yeah. This is really impressive, though, seeing what everyone's got done. I already got yeah.

B

Okay, thanks for help anyway, yep.

G

B

And follow the logistics so I guess that's it. We also have Alex on the call Alex. Would you like to say something.

G

I'm, just here for the first time trying to see what I can help with I. Don't have a ton of time but I'd like to be involved so I'll, see what's on the the epic and see what I can help with okay.

B

B

So idiots will sit with the update, did I miss anyone.

A

What's another one, not anyone who is on the call new.

B

Ok, yeah and I think yep. Mr. bloom, oh yeah Dainius also works on some exploratory testing bits. Here, isn't one of the issues but yep he's also busy with other stuff. So he hopes he will contribute more later, but we have seen cups on mornings so like tomorrow we will have an official set up for people harmonic as well. So then yeah you'll have more information. Then, mmm okay, so I guess that's it with the status update. So in 15 minutes yeah my run.

B

A

B

A

Have a longer meeting because we have some people from Oracle coming in right, yeah.

B

A

B

A

What is between yeah.

B

At 4:00 p.m. UTC we will have some really really hardcore Java C contributors coming. So if you have any questions about Jenkins, Java 1011 integrations, multi, release, jars or whatever feel free to come and have staff. There start at the section in the document. Second I'll share my screen again.

B

Okay, so yeah in the bottom of there is a question section. Questions to Java is sillies, so whatever you have in mind, I just put it there and we will organize the agenda cool.

C

Asked a lot of questions about garbage collection changes. Oh.

B

Okay, yeah I also have a bunch of questions. Yeah I did at least but yay and is also welcome to just said them, and we will moderated the discussion. So we will try to cover as many targets as possible.

B

Okay, yeah so I'd guess that's it. So Tracy asked about some introductions for newbies. How would we organize it? We can do it now, maybe in broadcast mode, maybe after the broadcast- or we can do it later tomorrow, with some announcement.

B

F

You're happy to kind of walk through what we do and then tomorrow I'd like to try and I've, got someone else coming in who probably like to sort of have our own go at it and then just do troubleshooting. If that works. That might be good. So.

A

Tracy, do you want to do it on on the recorded video here or do you want to do it.

F

Well, if Oleg could run through something now is that work I can.

B

Do a recorded video tomorrow as well, you can eat it.

A

Whichever you prefer like.

B

Whatever works, I can do it now and then can it I can do it tomorrow as well. Oh yes, now decision now yeah. This is just a status update. So if anybody has any questions, just hoping John the sling and ask questions and yeah I guess that the floor is yours. Tracing.

B

Soviet there, if you have any particular questions, let's start from them or we can just do introductory I- think yes,.

F

Well, I guess I'm, just from a developer set up.

F

The first question is: what like, how componentize is the code base, so you know, do I have to check out everything if, if you want to do things on core or do I, just have a specific plugin like how little can I have if I just want to focus on one area? Okay,.

B

So if you want to develop the stuff, we have some guidelines, we have a page on Jenkins oil or Kota Jenkins io / TC wait wait. So it's a kind of an entry point for all our new big contributors and yeah. There are guidelines linked for plugins for the core. It may take a while to find them, but here, for example, that is beginners guide for contribute and complete guide how to host plugins to the tutorial how to get started into this plug-in development.

B

So, if you're interested to start working on a plug-in, then it's the great you should start from. So this guide describes how to set up the entire environment, including ID, how to configure main settings in order to run our ideals and yeah. It's one of the foundation documents. Okay,.

F

And I could use this if I was checking out an existing plug-in and wanted to try it with Java 10 as well. Exactly.

B

A

The way, but you build it on Java 9 right.

B

Some Java 8 8 children. So if you want to just try out the plug-in, then you can just start whatever Jenkins instance and download this plug-in but yeah. If you want to develop the plug-in, then yes, it will be a guideline for you.

F

Okay and what about like developing Jenkins core? How what what's the setup for that starting point? Okay,.

B

So for your Jenkins core I would say that yeah you go to Jing and say Lincoln's, so we have several branches there. So this is a master branch, but we also have a Java 10 branch and Java 11 and chilla they're pretty similar, except in doctors, packaging. But you go to the branch and there are several guidelines: one is contributing: Kim D and another one is building 60 contributing describe the process, how to be started with a unit air to set up and how to build the stuff locally and also how to test it.

B

So these guidelines I still that I designed for Java 8. So if you try to run sorry to build a Jenkins from a job at 10 likely, you will experience some issues and if I understand some correctly, he is going to work on tooling Mustang today today, but here the current stated that you will likely be able to build on Java 9 + button, Java 8, you can build this stuff and then you can debug on Java 10 if needed and yeah how to do that.

B

There are two ways: one of the ways is to just build war file. So when you give this maybe in package, so what is that? Okay doesn't really matter? I'll show the Jencks code repository it's a fun bit, not the another.

G

B

Jenkins core Jenkins, so bit of structure of the repository you may see that there are several directories like core war file and effectively releases the destruction you bet after the build. So if you want to see the development package once you run the deal here, you have war and the target whether it's during this war file or take two reads what you need to run and then you need to run on Java 10, so you can just use Jenkins to link for it and instead of that, what I did I have created a simple script.

B

So I have documents Jenkins this Java can? Oh here you have for doing this. What fun actually I just copied it from here and I can just specify the path doesn't matter and they the only thing I have here. So there is some obsolete stuff, but yeah I have run Sh sweet and it's a run. It's a script just sets Java home to GD Keaton and then I specify Jenkins home to point to the directory, where I want to believe the stuff.

B

Actually, it's a jenkees homework, then I say Java home bin Java and then I have all options to start up. You can find the dis option in our guidelines for running new Jenkins, so Jenkins I/o block.

B

Regular, what I've done there is I just followed the guidelines provided here and so not dokey run but running without docker. So this is a common line for Java 10 this for Java alone, and it's exactly what I need in this repository.

B

The only addition that I also added some ways in departmentalization, so that I can start Jenkins, missing, debug, Forks and then I can attach my debugger to it so that I can relate things if something breaks but salsa standard Java thing. So you run a war file, but it's self packaged and if you're familiar with Java folder bargain, it's actually pretty similar.

F

So if, if I did that I can build it debug it make my change. Is there also kind of like a minimal sort of test? Suite I should run locally before submitting a PR.

B

No because we have continuous integration so.

B

Actually, we have three types of testing, so you can build now Jenkins with several vlogs, just a second okay. So one of the options is Quran is my default settings, so we would say it came packaged. Then you run knobbies. It takes turns on my machine running focused. We do something like one hour, you can say skip tests. In such case you will skip all tests and yeah. Obviously it's yeah. It's one of the options you can try if you just want a toast for checkered I, think because you spot check everything for you.

B

Sorry, we have continuous integration. So it means that even if you do it in search mode, then yeah. That is fine because we have tested established. So it's perfectly fine for local development. But if you want to do some testing, for example, if you want to evaluate a particular test, you can just use standard, doing things like, let's like full-bore quartz or something like that, and it will also work and the last thing and if you want to run some spot checks, we have two profiles.

B

One is light test, and so it runs only unit tests, so spot checks your instance, but it doesn't run integration tests which take the most of the time so gives the light tests. You can do changes color this may even maybe three or four minutes- and you know another optional smoke test smoke test is now something like six minutes minute because it includes for some indication tests. Well, this option is available only for J over ten or Java eleven branches, because it's what we build now in our CI system to speed up delivery of patches.

F

Okay, yeah, nothing, that's good! The general.

A

F

Will be finding some new b-bugs work out, whether the fix is likely in core or plugin and then set up a dev environment for that try and get to particularly dealing with warnings find the code make the upgrades. If you can build and then you know, submit the pull request so have any other suggestions, that's the plan. Yeah.

B

It's the best one. So if you want to relate to the things, then you can press it be such way very. If you just want to discover issues, but you wouldn't have time for fixing them, then you can use docker images we offer so, for example, the one I've already started for lotion, which bundles, maybe 100 or so plugins now so for smoke tasting, can focus exploratory testing. It should be good enough to the beginning, but a if you want to do development, then it's better to stop local environment.

F

Great yeah, now that's everything: I need to get started. Okay,.

B

So any other questions. Okay,.

B

Okay, yeah, that's it all right! You guys on track: okay, thanks everybody! So yeah and good luck. This testing and development I'm stop their broadcast and see tomorrow all right.