digitalme - Network

When I became an DevOps-Engineer, I was worried about all the technologies I had to learn and if I could pick them up fast enough.Little did...

When I became an DevOps-Engineer, I was worried about all the technologies I had to learn and if I could pick them up fast enough.
Little did I know, that the hardest part would be communication and requirements. In that order.

There are not a lot of songs that I can hear on repeat without getting bored. When Doves Cry is one of them.https://youtu.be/UG3VcCAlUgE

There are not a lot of songs that I can hear on repeat without getting bored. When Doves Cry is one of them.

https://youtu.be/UG3VcCAlUgE

This tutorial is a good example on how to make it as hard as possible for everyone to install your platform for local...

This tutorial is a good example on how to make it as hard as possible for everyone to install your platform for local development.

https://tanzu.vmware.com/developer/guides/tanzu-application-platform-local-devloper-install/

It's out of date and too complicated.

Tom Waits - "Starving In The Belly Of A Whale"I love this one, it pairs realism with hope.Life is whittledLife's a...

Tom Waits - "Starving In The Belly Of A Whale"

I love this one, it pairs realism with hope.

Life is whittled
Life's a riddle

https://www.youtube.com/watch?v=UizGMjeNW24

I am still with Fedora Silverblue and I am liking it more and more as the time passes.

I am still with Fedora Silverblue and I am liking it more and more as the time passes.

Isobel Campbell & Mark Lanegan - Come UndoneThat's a great sunday evening song.https://www.youtube.com/watch?v=2F2oEpif-6k

Isobel Campbell & Mark Lanegan - Come Undone

That's a great sunday evening song.

https://www.youtube.com/watch?v=2F2oEpif-6k

There are so many opinions out there from influencers of all sorts, on how your IT-Infrastructure is supposed to look like, and which...

There are so many opinions out there from influencers of all sorts, on how your IT-Infrastructure is supposed to look like, and which technologies you should use.

Is it cloud, serverless or good old server farm? EKS, Tanzu or self hosted?

Sometimes it feels like, those engineers are just talking about topics that get the most attention ... like the rest of the internet.

It's up to you to decide what you can afford and what works for you. They are of no help, much to the contrary.

Jim Heath with the Reverend Horton HeatSongs:- Victory Lap/Smell Of Gasoline- Psychobilly Freakout- The Devil's Chasing Me- Loaded Gun-...

Jim Heath with the Reverend Horton Heat

Songs:
- Victory Lap/Smell Of Gasoline
- Psychobilly Freakout
- The Devil's Chasing Me
- Loaded Gun
- Let Me Teach You How To Eat
- Big Red Rocket Of Love

https://www.youtube.com/watch?v=8ZuKnVtO7-I

Here is a edgy take on the future of software development from the CEO of fixie.ai.He says that software devs will be obsolete in the near...

Here is a edgy take on the future of software development from the CEO of fixie.ai.

He says that software devs will be obsolete in the near future. Which is something I would also say, if I was the CEO of a company that tries to do just that. 😀

I think I agree with him. This will indeed be the future of IT in general. More automation, better tools, less "human factor".

https://www.youtube.com/watch?v=qmJ4xLC1ObU

If you want to learn more about the technology that makes Fedora Silverblue's immutable core system possible, check out this site....

If you want to learn more about the technology that makes Fedora Silverblue's immutable core system possible, check out this site. It's fascinating (if you're a hopeless nerd it is):
https://ostreedev.github.io/ostree/introduction/

🧐️

I was dealing with a problematic k8s deployment. I saw the error:"no healthy upstream"The Pods where in constant...

I was dealing with a problematic k8s deployment. I saw the error:
"no healthy upstream"

The Pods where in constant "CrashLoopBackOff" state.

As it turns out, I had to increase "initialDelaySeconds" to at least 10 seconds, to give my service time to boot up properly.

According to k8s liveness-docs: "If the (liveness-)handler returns a failure code, the kubelet kills the container and restarts it."

https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/#define-a-liveness-http-request

I wonder if there are any tools or strategies, on how to keep the #firewall rules tidy, in a fast-growing and highly dynamic environment,...

I wonder if there are any tools or strategies, on how to keep the #firewall rules tidy, in a fast-growing and highly dynamic environment, without having to be the bottleneck every time something new is deployed.

#Orgmode changed my life to the better.I love it.It's emotinal self care, when I use it for journaling in my pesonal life.It's...

#Orgmode changed my life to the better.

I love it.

It's emotinal self care, when I use it for journaling in my pesonal life.
It's professional self-care, when i use it to you write down my thoughts at work and reflect on them.

It's a productivity tool, allowing me to save more context to the tasks I do, like a second external brain.

https://orgmode.org/

And now let's get crazy and completely change our distro from the CLI :-)Create a snapshot of our home folder> sudo btrfs subvolume...

And now let's get crazy and completely change our distro from the CLI :-)

Create a snapshot of our home folder

> sudo btrfs subvolume snapshot -r /mnt/NAS/snapshots/home

Change our distro from silverblue to kinoite with

> rpm-ostree rebase fedora:fedora/38/x86_64/kinoite

reboot and bam! You are on kinoite with all your layered pakages and configs :-)

>rpm-ostree rollback
>rm -rf /var/home/alex
>sudo cp -prv /mnt/NAS/snapshots/home/alex /var/home

et voila, all kinoide stuff gone :-)

You want to change your kernel parameters of an immutable system?Use an editor:rpm-ostree kargs --editorOr pass the values via...

You want to change your kernel parameters of an immutable system?

Use an editor:
rpm-ostree kargs --editor

Or pass the values via cmdline
--append=KEY=VALUE
--append-if-missing=KEY=VALUE
--delete-if-present=KEY=VALUE
there is an option for everything you can imagine

And again, this creates a new deployment with the ability to rollback etc ...

It's also quite interesting how they handle config files.By default, no file changes outside your home folder have any effect on your...

It's also quite interesting how they handle config files.
By default, no file changes outside your home folder have any effect on your system.

They let you layer your changed file on top of the system file.

First you change stuff : vi /etc/modprobe.d/blacklist.conf

Then: rpm-ostree initramfs-etc --track=/etc/modprobe.d/blacklist.conf

This creates a new deployment with the ability to rollback etc

List of all moded files: rpm-ostree initramfs-etc
Untrack files with : --untrack=/path to file

#Fedora #Silverblue is quite interesting. All changes are reversible and trackable.Newly installed rpms create deployments that only take...

#Fedora #Silverblue is quite interesting.

All changes are reversible and trackable.

Newly installed rpms create deployments that only take effect after reboot.
By default it keeps the last 2.

> rpm-ostree install <yum pkg name>

You can choose the previous deployment from the Grub-Menu, in case your system became unbootable.
And/Or afterwards permanently rollback to your previous with:

> rpm-ostree rollback

You can also safe specific deployments from being deleted.

> ostree admin pin 0

mysqlsh > mysqlhttps://dev.mysql.com/doc/mysql-shell/8.0/en/mysql-shell-features.html

mysqlsh > mysql

https://dev.mysql.com/doc/mysql-shell/8.0/en/mysql-shell-features.html

I don't use #golang concurrency patterns that often but when I need them, it feels like I am starting from zero again. So I found this...

I don't use #golang concurrency patterns that often but when I need them, it feels like I am starting from zero again.

So I found this amazing cheat sheet, that safes me a lot of time.

https://github.com/lotusirous/go-concurrency-patterns

It also contains playground links for each concurrency pattern.

Some #darkfolk #music for the night-shift, baby. Stay safe out there and don't DROP the TABLEs! KING DUDE - "JESUS IN THE...

Some #darkfolk #music for the night-shift, baby. Stay safe out there and don't DROP the TABLEs!

KING DUDE - "JESUS IN THE COURTYARD"

https://www.youtube.com/watch?v=BiSnI8vyxx0