Cgroups, namespaces, and beyond: what are containers made from?

[@omerpriel5588]

For 8 years since this video came out. And still he is the only one who explained docker really well thank you very much

[@omerpriel5588]

And it was fun (in the good way)

[@rira12621]

Did you watch Liz Rice at ContainerCamp? I think that was pretty neat as well, but works better if you're somewhat familiar with Go

[@nelsonjoppi]

- What is a container? 2:40 - Control Groups. 5:12 - Different type of CGroups: 7:05 - Namespaces: 24:43 - Container runtimes (cgroups + namespaces): 35:51

[@rschmidtzalles]

After 4 years, this is one the best talks about docker

[@24Shredder]

I'm a Docker noob: after 4 years, does this video still say valid things? Behind the scenes, Docker is still working as this guy say?

[@anpham871]

@@24Shredder yes, fundamentals never change

[@josephroland4000]

This is so interesting, simply the best, in this presentation i get to understand how docker works under the hood.

[@alexjswill]

Saw this in 2020 unfortunately. This talk is so awesome. Should have saw this before.Thanks Jerome!

[@spillai6000]

Notes: - What is a container? 2:40 - Control Groups. 5:12 - Different type of CGroups: 7:05

[@amir3515]

Go on...

[@nelsonjoppi]

- What is a container? 2:40 - Control Groups. 5:12 - Different type of CGroups: 7:05 - Namespaces: 24:43 - Container runtimes (cgroups + namespaces): 35:51

[@sachinmainkar]

This has to be the first material any newcomer like me, to cgroups and namespaces encounters. Then read or listen to others to get more details. Merci beaucoup Monsieur !

[@MohamedAnsari_H]

This is the best place to start for someone coming from Linux

[@nebulousnomad]

This was such a good presentation

[@mads2k5]

Great talk. Went far further than most materials on (pure) docker. (and containers in general)

[@balajipattabhiraman]

Awesome one. Loved it

[@rakra4551]

The moment slides are replaced by the speaker, the line of thought/understanding is lost. The slides must be visible all the time. Great talk but bad camera placement.

[@nebulousnomad]

Also too much text in slides. Trying to listen to him talk fast and read at same time. Otherwise great informative presentation

[@MrNathanIL]

awesome talk. thank you ☺️

[@sudarshansargur9253]

What a fantastic talk!

[@deeptivaidyula]

Very well presented. Thank you for uploading!

[@youtube_resident]

great speach!

[@king0s]

❤ and gratitude

[@imanebt8617]

Thank you for this talk! By curiosity, are there open-source or on-the-market container runtimes that are not based on namespaces and cgroups ?

[@anywhereroam9698]

Yes. One example is Kata. It’s uses virtualisation to run containers. It’s open source.

[@aseelmurga113]

Thanks for sharing

[@newmedia24]

could someone explain or recommend something to read for understanding what and why is going on there with mount/unmount commands in demo project in the end.

[@AliTaj5610]

Excellent!!!

[@vladbagbuss]

Awesome talk! thanks for uploading the vid.

[@ArmenManukyan]

Funny that cgroups2 allows now to control percentage as well.

[@bhavesh1877]

Very informative, thanks.

[@ishi92]

Thank you !!!

[@teddyzhai4442]

great talk. please persistently show the slides rather than full screen only to the presenter. sometimes it is hard to corresponds his explanation to the bullet points.

[@patmansf]

Are there more details on the page overhead accounting (at 13:16)? Specifically what boot time (or kernel config) options disable it?

[@SithembisoKhumalo]

Great talk! Very informative

[@sntshkmr60]

Bawandarful! Got to learn a lot about Linux kernel.

[@BalvinderRawat]

Really informative :)

[@深夜酒吧]

can someone help to explain why there is ubuntu and alpine docker image? how can ubuntu / alpine linux distribution live inside container? I dont understand!!!!

[@berginv6827]

Great

[@riderblack6401]

it is too complex to understand without a specilized backgroun. Anyone knows a refrence to start with understanding what he meant???

[@tejaszarekar9145]

I know right... You gotta be a kernel Hacker to know all of this...

[@f8881f]

25:00

[@arabiccola]

I don't mean to be disrespectful but this was 45 minutes of lame ass slides and jokes followed by 8 minutes of pure gold. I would have loved to have 53 minutes of that powerful demonstration. If anyone reads this and knows a place where this man demonstrates slowly and explains how to create the illusion of a container using Linux commands and all the other cgroup layers then please reply to this comment. Very impressive.

[@AndresMujica]

first chapter of Containerization with LXC by Konstantin Ivanov has it like that.

[@devakumarnm987]

is this video is still relevant in 2020?

[@KingslayerSrb]

in my mind - yes. cgroups are still cgroups, namespaces are namespaces, copy-on-write is copy-on-write. Can't see anything major changing there? Could be wrong, if so I hope someone corrects me, but I think the main innovation since this video went into container orchestration and everything that came out of that

[@SoeaOu]

That rude comment about systemd-nspawn maintainers at 37:15 was really childish and unprofessional. Beside that a very good presentation.

[@kukikukac]

it was funny

[@SisypheanRoller]

Funny how podman basically makes systemd a key part of local container management.

[@GUN2kify]

#2:55 - Container can be like VM ... that's the way how LXC works ... intended is *Docker is not like VM* .

[@ickyickyptangzoopboing]

couldn't fully follow the demo

[@keokawasaki7833]

skill issue

[@tejaszarekar9145]

This is clearly not for everyone

[@kir9290]

sure it's not, understanding it requires some essential knowledge of OS concepts and mechanisms (especially Linux in this case)

[@abdulrahmanalotaibi783]

d

[@igmarzullowski5605]

Nobody has broken out of OpenVZ ... then obviously it's so uninteresting that people even don't bother.

[@MrMikomi]

Not sure who really needs to know this stuff. If you're planning on creating the next Docker Corp maybe it's useful. If you merely want to use Docker.... I imagine pretty much none of this stuff is needed.

[@hardikdodiya1741]

Great talk, thanks.

[@sjraju]

Great talk! Very informative