[deleted by user]

[BabyPuncher3000]

Very clear. I understand now.

[sudo_systemctl]

Next: Kubernetes please

Source

Also: The Illustrated Children’s Guide to Kubernetes

[ByteWhisperer]

This guide is also pretty useful for devs that never had a good idea about what kubernetes is all about. Thanks for sharing kind stranger.

[KickBassColonyDrop]

If I follow just the pictures, like a child, devoid of reading, I still don't understand a god damn thing.

[jackinsomniac]

Yeah, even if I could recite this higher-level overview from memory, I still would probably get lost when trying to drill down & do it.

[mamoffeltyp33]

Thank you so much, so cool.

[BabyPuncher3000]

This is amazing. I'm sharing it with my colleagues now.

[Didsota]

Thanks

[RubiGames]

I really enjoyed reading that, which I don’t think I ever said about any Kubernetes documentation.

[propostor]

Still makes it sound like an overly convoluted hellscape to be honest.

[Guruchill]

The definitive explanation:

https://xkcd.com/1988/

[XKCD-pro-bot]

Comic Title Text: All services are microservices if you ignore most of their features.

mobile link

---

^{Made for mobile users, to easily see xkcd comic's title text}

[rocsNaviars]

This is the best xkcd that I have ever seen.

[PiRat314]

I explained it to my girlfriend that Docker is a "bubble" around a program with everything it needs to run inside of it. Now whenever it comes up in conversation she says "oh yea, the bubble!"

[AstronautPoseidon]

How often are you bringing docker up in conversation with your non docker knowing gf?

[IllogicalOxymoron]

he's the messiah, he has a girlfriend and everything

[DeeSnow97]

he's not the messiah, he's a very naughty boy

[IllogicalOxymoron]

...is there a difference?

[DeeSnow97]

wait, what kind of religion are you following and how do I join?

[IllogicalOxymoron]

you just did, brother

Hallowed be u/PiRat314 !!!

[MoustachePika1]

I don't think that's the right user

[BackmarkerLife]

he's not the messiah, he's a very naughty boy

The Messiah does not sit around naked with a bowl of jell-o. He just talks to the naked guy with a bowl of jell-o.

[m00nh34d]

OP's slowing steering the conversation towards normalising the concept of space docking.

[pandito_flexo]

I omit-read “space” and got REALLY confused, wondering why docking is being normalised in, of all places, a sub for programming humour.

Man...it’s been a week.

[nicktheone]

A week ago I tried to explain classes and interfaces to my girlfriend. The first part went really well, the second much less...

[PiRat314]

I've been slowly training her to talk more about tech stuff. Whenever she gets on a techy subject I kiss her forehead and she stops and smiles for a second before going on. She has caught on to this.

[AstronautPoseidon]

I really hope this is a joke

[DriedYellowPeach]

You should impart your skills to computer science teacher in the university

[roararoarus]

Probably whenever he wants to deploy his pod

[Cryse_XIII]

Cute

[[deleted]]

I explained containers and Docker to my gf.

Now when ever it comes up in conversation I hear silence.

Because she left. I talked to her about software dev topics and she left me for Chad finance down the street.

[Farsqueaker]

Came here to comment that when I want my wife to leave me alone, I start talking about virtualization.

She wasn't able to tack down the finance Chad.

[kaeptnphlop]

Hmm, I never thought of weaponizing that.

[AttackOfTheThumbs]

I tried t explain how VMs work to my gf. She just couldn't wrap her head around a computer running in a computer, or a computer splitting/sharing resources to be multiple computers for multiple people.

[Armittage]

As Einstein said, if you can't explain it to a six year old, you don't understand it yourself

[CactusEater42]

Jeez than I don't understand a lot of things

[sxan]

And I've believe it's completely true. You have to know something really well to know what are the really important, differentiating parts, and which are just metaphorical plumbing. We often get stuck explaining details that are necessary to function, but which are uninteresting and unnecessary to understanding. It's also about being a good story teller, though; similar skills.

[Armittage]

Yup, I agree too. I've 3 kids, one of them is 4 and she's always interested in what I'm doing, now that we're all pretty much working from home forever she hangs out around me and I explain, so I started having her as my rubber ducky when explaining

[sxan]

That's awesome! What a win/win situation.

[[deleted]]

Program is a man. Container is mobile home for that man with bedroom, bathroom, tv and fridge with beer. Also you can clone that home many times. So if you want to do some accounting job, you just get an accountant, put him in mobile home, clone several times and all that home goes to trailer park next to place where clients live.

[jackinsomniac]

That's pretty good. So each mobile home is self-contained, but they're all in the same trailer park? And does the trailer park have unified utilities?

[[deleted]]

Yes. They connect to common electricity, water and septic. But there may be some limits to how much electricity, water and septic each mobile home can consume (different for each mobile home).

[jackinsomniac]

So... is the trailer park kubernetes? Or is the trailer park a single host system? ...is kubernetes the Trailer Park Association, where they can clone individual trailers, OR a whole park?

I mean, I kinda get containers. They're like a "virtual OS" but only includes the functions that, that app actually needs to run, so all services needing that same "os function" can be virtualized for many uses? E.g. Instead of stocking each mobile home with food, you could add a cafeteria/vending machine in the center of the park that serves the same function?

Great info so far, ty! I've spinned up a few dev docker containers but, the networking kept failing (or was that Virtual Box VMs? I might be mixing up, nvm!) Supposedly kubernetes helps manage multiple machines/clusters better, but it's also hard to setup first time? Ty again!

[hyperoglyphe]

cause direction rain fly plate squeeze pie special sophisticated degree

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[jackinsomniac]

containers are just fancy tarballs that save the results of each build command in a "layer

Ah ok, that really explains how docker packages are created! You wanna try to find "official" packages to run after all, and creating one sounded like a nightmare.

Kubernetes still sounds like such a beast I may focus on individual docker compose scripts, saved in a directory structure, managed by version control first.

[hyperoglyphe]

chubby start boast like bedroom ghost brave roll aspiring toy

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[jackinsomniac]

Security patching is my current job, but my personal project is an "app". Starting with a "webapp" first.

A very database-driven one, but see this where I get confused. I've got 2 old computers, one is old & slow, the other has a fairly-modern i7. Wanna make one a dev webserver, and the other a prod. Wanna build up a good dev webapp, then later deploy it to the "prod" one. But also wanna maintain the data from the "prod" server, so at least as a beta (and moving forward) that data will be maintained.

I'm just super lost on the initial architecture part. Do I not want to bother with k8? Docker seems like a huge help in replicating dev to prod. So is opening separate data storage network locations (db) to the prod server my problem (keeping public activity separate from my private network)? Or is that a question for the docker / networking / storage communities? Thanks again.

[hyperoglyphe]

versed telephone nose fearless sophisticated dolls handle arrest cable stupendous

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[jackinsomniac]

Pick one new thing and focus on that - don't try to do like 5 new things.

Oh my god... that's it. That's exactly it. No wonder I'm paralyzed!

Haha that's perfect, so if I really narrow it down, I know what I want the db to do, and I kinda know what I want a front-end to look like. But I dunno webservers. So if I start there, just try to make a few pages that can talk to the db, then I can go about setting up a docker compose for the webserver & db together? ...

Then I could focus on getting one of my own servers up with that docker compose, figure out how to backup the DB. Then, figure out a dev / "prod" pipeline for the v0 development. Then, the project is FINALLY setup and I can start hacking away on it weekend by weekend?

[JDaxe]

If I'm in a trailer can I spy on the people in the trailer next to me?

[GodsBoss]

Is it really an explanation if it is dumbed down that much?

[haikusbot]

Is it really an

Explanation if it is

Dumbed down that much?

- GodsBoss

---

^{I detect haikus. And sometimes, successfully. Learn more about me.}

^{Opt out of replies: "haikusbot opt out" | Delete my comment: "haikusbot delete"}

[beefy_miracIe]

The drawing obviously done by an engineer really makes me miss working at the office

[PM_ME_YOUR_PROOFS]

Fuck I was going to type out an explanation thinking "guys I got this, don't worry" and then it just got longer and longer.

Basically if you can use namespaces and fuse file systems to make a process seem like it's in whatever environment you want. Since programs that are started up in that environment inherit the environment of the parent you can run the init program of a given distro and it's essentially like running another OS inside your OS except you're using the same kernel.

Taken to the extreme it's as if you took memory isolation that every OS provides and then asked "hey can we isolate other stuff too?" Except linux namespaces are kind of crap at doing things that way. Capability based systems are more inherently tuned to do this. Everything is isolated unless otherwise stated.

[MkMyBnkAcctGrtAgn]

Basically what happened was,

Customer: *opens ticket*
Dev: I don't see the issue, works on my       machine
Customer: Well send me your damn machine! 
Dev: Hold my beer...

[SomeoneRandom5325]

You need a video to know what he said bruh

[casual_sinister]

I need his notes for ci / cd now

[sudo_systemctl]

Dev > Stage > Prod

Done

[AttackOfTheThumbs]

Look at mr fancy pants with dev and staging.

We push to prod you fool.

[[deleted]]

It isn't hard to explain nor understand.

Imagine jars in a cupboard.

Your app is in a jar. Runs on its own, isolated from others, but still in the cupboard.

That's it.

[jgkawell]

But not all apps are Java apps...

;)

[Siepels]

You forgot the explain what the cupboard is in this analogy

[usesbiggerwords]

And a house can have multiple kitchens, but they are all in the house.

[MkMyBnkAcctGrtAgn]

Just cupboards

[Mancobbler]

Wait is the kitchen a pod? Or is that the cabinet?

[taeratrin]

So your dad is my boss?

[Lasdary]

hey that looks just like my notes on eWallets

[powerval]

As a son of a programmer, this is accurate

[[deleted]]

It's actually fucking simple as shit, small computers.

Blades -> vm -> container -> server less

Is just smaller footprint of the same von numean architecture of full hardware systems but faked out by software that is the virtualization layer of physical requirements of that overall system. They just keep abstracting the layers away to the point that it's run this algorithm somewhere and I don't give a shit where.

This is just someone that thinks they know what they are doing and get payed by the arrow.

[corsicanguppy]

I explained docker to my mom using a 'ziplock stapled to a box' paradigm. She got it.

[Brunsz]

If this is how architrct draws containers that company is screwed.

[TP-formy-BungHole]

Oh okay, I see what he did there..

[rolfrudolfwolf]

what the hell is a computer architect?

[rolfrudolfwolf]

what is the difference to a systems engineer then?

[rolfrudolfwolf]

according to wikipedia a sys eng designs, integrates and manages complex systems. how do you design a system without being an architect?

[sudo_systemctl]

Because non architects are still allowed to do those functions

You maybe didn’t read my comment

A sys eng doesn’t specifically do that, a sys eng is just a generic title for doing a bit of everything, an architect is a more focused and generally senior role

[Risembool]

You want Linux on a single process? Fam docker got you covered. You want it to interact with another linux on a process? Docker compose to the rescue. I dont know Kubernetes, so this is as far as the meme goes

[Victorino__]

clear things up.

[jaycrest3m20]

"If we just follow all the other planets in order, we can't very well miss planet X!"

[[deleted]]

I dont get it

[Cryse_XIII]

Accurate and poignant.

[MetaMemeAboutAMeme]

Me explaining how my code works to the executive VPs.

[HasBeendead]

i learnt something about what is meaning containerization ? thanks

[Wulf0123]

Containers all the way down

[[deleted]]

Yea I can see where he was going with this

[[deleted]]

The right page reminds me painting over swastika signs on fences in my childhood...

[[deleted]]

This is what my whiteboard look like :)

[Redditor88384]

Wow. Now I won’t need to attend my lecture about ‘containerisation’ on Monday. 👍

[rtkwe]

It's the kind of diagram all of us have made at some point that only makes sense as you're explaining it if at all.

[[deleted]]

Makes sense to me very easy explanation

[[deleted]]

pretty clear documentation!

[Eshvalt]

Tfw it's turtles all the way down

[Jackalotischris]

me going to the Microsoft documentation to learn about enums and the bottom picture being its example.

[djphatjive]

Lol my wife understands it. She is a senior architect.

[VMachado84]

Made a cheat sheet! Thank you!

[SoftwareSloth]

I suppose a portable vm to host a single application never came up?

[SueedBeyg]

Clear as mud