When you replace all PC fans with Noctua 6dB pieces and the noise-maker becomes your 3TB WD Red...

I've never thought I'll want to get rid of my hdd because of noise

*wrong tag. My bad

In the upcomming days/weeks/months my comments and/or rants might be inadequate: full of rage, depressive, dumb, etc. I appologise in advance. Please let me know if I do that and I'll take those posts down. TIA

Life just gave me lemons too sour for any lemonade.

1. Scripting out a team. I've built a collection of bash scripts to do what one of our teams does. Except the script does it in 30min and always does it well where that team used to take 4 to 10 hours and almost always missed something in the way.

2. Automate 70-80% of our BAU tasks with a single >4k loc bash script. Integrations with servicenow, lots of internal portals, predefined huge sets of commands to run on separate servers or lists of servers, do all sorts of diagnostics, schedule hw maintenance for DC folks, chase for approvals, track CHNG/CTSK tickets in a graphical chart so we would not miss any of them and lots lots more.
Finally we were able to afford time to make some coffee/tea.

These are the bau optimizations I'm proud of the most. And they have made significant impact on how our teams operate.

Whoever recognizes both company values in the tags and know what is that company - are they still using ´S´ in unix team? :)

## Learning k8s

Interesting. So sometimes k8s network goes down. Apparently it's a pitfall that has been logged with vendor but not yet fixed. If on either of the nodes networking service is restarted (i.e. you connect to VPN, plug in an USB wifi dongle, etc..) -- you will lose the flannel.1 interface. As a result you will NOT be able to use kube-dns (because it's unreachable) not will you access ClusterIPs on other nodes. Deleting flannel and allowing it to restart on control place brings it back to operational.

And yet another note.. If you're making a k8s cluster at home and you are planning to control it via your lappy -- DO NOT set up control plane on your lappy :) If you are away from home you'll have a hard time connecting back to your cluster.
A raspberry pi ir perfectly enough for a control place. And when you are away with your lappy, ssh'ing home and setting up a few iptables DNATs will do the trick

netikras@netikras-xps:~/skriptai/bin$ cat fw_kubeadm
#!/bin/bash

FW_LOCAL_IP=127.0.0.15
FW_PORT=6443
FW_PORT_INTERMED=16443
MASTER_IP=192.168.1.15
MASTER_USER=pi

FW_RULE="OUTPUT -d ${MASTER_IP} -p tcp -j DNAT --to-destination ${FW_LOCAL_IP}"

sudo iptables -t nat -A ${FW_RULE}

ssh home -p 4522 -l netikras -tt \
-L ${FW_LOCAL_IP}:${FW_PORT}:${FW_LOCAL_IP}:${FW_PORT_INTERMED} \
ssh ${MASTER_IP} -l ${MASTER_USER} -tt \
-L ${FW_LOCAL_IP}:${FW_PORT_INTERMED}:${FW_LOCAL_IP}:${FW_PORT} \
/bin/bash
# 'echo "Tunnel is open. Disconnect from this SSH session to close the tunnel and remove NAT rules" ; bash'

sudo iptables -t nat -D ${FW_RULE}

And ofc copy control plane's ~/.kube to your lappy :)

## Learning k8s

Okay, seriously, wtf.. Docker container boots up just fine, but k8s startup from the same image -- fails. After deeper investigation (wasted a few hours and a LOT of patience on this) I've found that k8s is right.. I should not be working.

Apparently when you run an app in ide (IDEA) it creates the ./out/ directory where it stores all the compiled classes and resources. The thing is that if you change your resources in ./src/main/resources -- these changes do NOT reflect in ./out/. You can restart, clean your project -- doesn't matter. Only after you nuke the ./out and restart your app from IDE it will pick up your new resources.

WTF!!!

and THAT's why I was always under an impression that my app's module works well. But it doesn't, not by a tiny rat's ass!

Now the head-scratcher is WHY on Earth does Docker shows me what I want to see rather than acting responsibly and shoving that freaking error to my stdout...

Truth be told I was hoping it's k8s that's misbehaving. Oh well..

Time to get rid od legacy modes' support and jump on proper implementation! So much time wasted.. for nothing :(

Hi ranters. We need to talk.

I've been thinking, I'm lately getting tired of code everywhere. Suppose one is a software engineer / senior developer. What is one's career path from this point on?

Tech lead? Architect? And then what? Is that all? A dead end?

Management would be also a possibility I guess. But is that a horizontal career change or are there any spots in vertical plane?

## Learning k8s

Run on k8s -- fails
Run the same img on Docker -- works

it's been a while since I've been this frustrated...

For some reason I find reading tech books a repelling activity. I'd rather spend longer hours googling SO issues, GH/GL tickets, reading blogs than reading a well recommended book on the topic.

But then again.. What is the difference between a series of blog posts and a book...? Not much of it. At least I cannot come up with how blog posts would be superior to a structured and many times reviewed book :) Many posts are lame or just skim through the topic. The same holds true with books too. So maybe it's worth getting that 200pages thin book instead..

## Learning k8s

Okay, that's kind of obvious, I just have no idea why I didn't think of it..

I've made a cluster out of a rpi, a i7 PC and a dell xps lappy. Lappy is a master and the other two are worker nodes.

I've noticed that the rpi tends to hardly ever run any of my pods. It's only got 3 of them assigned and neither of them work. They all say: "Back-off restarting failed container" as a sole message in pod's description and the log only says 'standard_init_linux.go:211: exec user process caused "exec format error"' - also the only entry.

Tried running the same image locally on the XPS, via docker run -- works flawlessly (apart from being detached from the cluster of other instances).

Tried to redeploy k8s.yaml -- still raspberry keeps failing.

wtf...

And then it came to me. Wait.. You idiot.. Now ssh to that rpi and run that container manually. Et voila! "docker: no matching manifest for linux/arm/v7 in the manifest list entries."

IDK whether it's lack of sleep or what, but I have missed the obvious -- while docker IS cross-platform, it's not a VM and it does not change the instructions' set supported by the node's cpu. Effectively meaning that the dockerized app is not guaranteed to work on any platform there is!

Shit. I'll have to assemble my own image I guess. It sucks, since I'll have to use CentOS, which is oh-so-heavy compared to Alpine :( Since one of the dependencies does not run well there..

Shit.

Learning k8s is sometimes so frustrating :)

No, listen to me. I cannot approve this PR because your code does not comply with our code style. All the imports and annotations must be sorted in ascending order by length. They must all make fir-like blocks of code. Because it looks nice.

Now go and fix your code

I just smiled and walked away to obfuscate my code with firs . I had no idea what to even say to that... I still don't

## Learning k8s

Sooo yeah, 2 days have been wasted only because I did not reset my cluster correctly the first time. Prolly some iptables rules were left that prevented me from using DNS. Nothing worked...

2 fucking days..

2 FUCKING DAYS!!! F!!!

Tl;dr; even password as simple as 123! Could be too dificult to use for unauth access. Even if you write it down for someone! Some minor HID config changes could be unbeatable for some people.

I always leave my lappy at the office and I leave it turned on and connected so I could connect to it from home if I really need to. The holiday is not an exception. I left it connected too.

Forba few weeks I was trying to connect to it from home to doublecheck xpra command I was using. Without any luck. The lappy was unreachable all this time :/

today some people came in the office. I reached out to one of them I trust the most to check on my lappy. And he says it's charger is unplugged. Fucking janitors...

I ask to plug it back in and turn it on. LUKS password prompt pops up. I send him the pw via sms along with a note that I'm using non-EN kbd layout. He confirms he'll manage.

20 minutes later he pings me "are you sure the pw is correct?". Yes it is! 5 more minutes later he pings me "... Is this how you type numbers and symbols with your layout?" nope, it's the other way around!

10 more minutes later he plugs in his own kbd, still fails. Sets up my layout in his lappy, spends a few minutes using it, plugs it back to my lappy and FINALLY enters the pw correctly.

Come on dude.. 😁

WishYou.happy(new Year(2020));

Definitely a rant.

I mean you've gotta love how samsung does not allow you to remove facebook and its derivates: insta, whatsapp and some other junk. Yeah, it allows you to "disable" them. But today I found whatsapp running and consuming >50M of storage even though it was DISABLED

precious, ain't it..? Facebook is a system app.

...

Wait, what happened?!?

- finish my project's backend, make a proto frontend
- throw the proto away and hire someone to do it for me. Or at least make the design...
- learn that freaking k8s ffs...
- if there will be spare time left - move from on-prem to aws/gcp, maybe launch an alpha

- improve my people skills
- bump my salary significantly

Python haters, gather 'round

oh come on... In java it's all simple as 123. You build an app, you have like 200 dependencies, you pack it all in a single fat jar and only deploy that single .jar. Don't need no internet, no installs, no pip, no nothing: just your .jar file and the JVM.

So java:
- build an app
- use 200+ deps
- build your whole project into a single fat jar
- deploy your jar in the env
- install [*khem khem* scp into the server] jre
- run

Now let's look at py, shall we?
- build an app
- use 1 dep
- deploy all the 20 .py files in the env
- make sure you have internet access
- install python
- install pip
- pip install <my dependency>
- run your app

Guys, I need a mood bump :/ Christmas is almost here and it's raining as hell outside..

Does anyone have a snowy view whereever you are? Could you share those views? Thank you!

And that was the world's leading professional social network, ladies and gentleman!

if (down(KEY_LEFT) && down(KEY_UP) && down(KEY_DOWN)) {
calc.exe
}
/*
because why not..

src: https://fwupd.org/lvfs/devices/...
*/

So.. Yeah.. A huge corp decided they no longer need a dba. For at least 2 months, starting DEC.

Ora, enterprise features - all the way in. Meaning only dbas have the knowledge

I've got some corn to pop. Anyone fancy to join?

This is not an ad!

But if anyone is in a need for a decent java profiler - here's yourkit's festive deal: https://www.yourkit.com/purchase/ (Personal)

You can legally use this licence for both personal and commercial needs. It's non-expiring. You can have up to 3 profiler copies simultaneously (deactivate one to activate another if all 3 slots are used)

I just thought some of you might find this useful. Since I'm a performance engineer I grabbed this deal as if it was the last one in the shelf :) The tool is good, the price is decent and it's for lifetime.

Again, it's not an ad. I don't care if you purchase it or not. I just thought I've come across smth nice and felt like sharing.

2013 I guess. It's the year I jumped on the IT train. As a unix/linux sysadmin in a worldwide bank, been there for over 3 years. It was an amazing experience. Used a lot of my knowledge and learned even more. Got a chance to play around with enterprise software and hardware [remotely], deal with various vendors, have business with folks from all around the globe, learn enterprise processes, incident handling, be the initiator of automation of our processes,...

Boy it was an amazing year. In both professional and personal lives :)

Okay, it's getting a bit annoying to _hear_ my graphics hardware (NOT the fans. The circuits) working when I'm doing something on the screen.. Sometimes it feels like it's gonna snap and burst in flames or smth..

Friday
13th
last month
full moon
17.40

who's deploying today? :)

I barely ever drink, so.. Almost every holiday party I've been in was awkward :)

there was this Christmas once where one of my family members got unexpectedly wasted and embarased me and himself in front of my newly wedded wife. A few next christmas in the fam were awkward.

There was this christmas party in my student days with othet students. Like they say, medics study hard and party hard. Everyone got wasted and fel asleep a few hours past midnight. We had lectures next morning so I didn't sleep [as I was the only one sober and had] to wake everyone up for 9am lectures. Never ever had I attended such parties since.

At even younger age [high school] I was in a new year party. Incidentaly only couples were there. Soo.. After the fireworks went off - the lights were turned off and all I could hear were kissing and other noises of this kind. Everyone's wasted ofc, but me

needless to say now I'm very picky who to celebrate with. A closest family, a glass of bubbly or some hot wine is enough and I'm comfortable with everyone.

The best way to punish managers is by doing exactly what they ask

You know how cities hang all sorts of decorations wherever possible before Christmas? Well, it looks like people of Kekava, Latvia, are very big fans of Kotlin and find it's logo to be festive!

Good for them!

Here's a tip to caffeinated-beverages lovers.

People often make this mistake with coffee.. They take a cup of coffee after lunch and expect it will make them productive and concentrated immediately. That's BS. Wait for the pee.

Digestion takes ~27% of your body energy molecules [ATP], so you will anyway be sleepy.

When you ingest a cup of coffee you ingest a warm beverage. The warmth will most likely make you sleepy and the sleepiness might last 5 to 15 minutes.

Caffeine in the coffee acts as diuretic - it makes your kidney filter blood more aggresively. As a result 20-40minutes after ingestion you will want to pee.

When you want to pee it's an obvious sign the caffeine is working. Now you should be productive.

Brain [cerebrum] uses glucose molecules for energy rather than ATP, like the rest of the body does. So for the best effect:
- have lunch
- have coffee with sugar during or right after the lunch [do not drink coffee if your stomach is empty!! Ulcers, gastritis, refluxes - that's your future if you do]
- wait ~30 minutes or until you pee
- go to do your work.

This way you will not be working sleepy and your brain will have enough pure glucose to operate on [sugar is just 2x glucose molecules bound together]

"dead code has value. And the value is negative"

-- Kevlin Henney, Devternity '19