Hi there, I am Mike

whoami # MonolithProjects on GitHub
kubectl apply -f cluster.yaml --on=baremetal
git commit --amend # nobody's watching anyway
systemctl status devops --no-panic
vim ~/.config/yaml.conf # this is fine
kubectl explain crd | less
...oh, you're still reading? Here's the secret truth:
It's always DNS. I checked.

Michal Muransky

Cloud Platform Engineer at EMBL

I am a cloud engineer who loves making things easier with automation and open source. At EMBL I am building and running an on-prem bare-metal cloud for the life sciences. Oh, and about “satellite” - this webpage started as a summary of my projects but turned into my own personal site over time. :)

Kubernetes on bare metal

k9s over kubectl (proudly)

Cattle, not pets

Immutable infra enjoyer

GitOps over Pipelines

Operators all the way down

Skills

Kubernetes

Building, operating and troubleshooting Kubernetes clusters at scale - Kubespray and RKE2 on bare metal. Comfortable with Helm, Kustomize, custom operators, and the messy bits underneath.

Cluster API & Metal3

Building a next-gen bare-metal cloud - declarative cluster lifecycle with CAPI, hardware provisioning with Metal3 and Ironic, managed via Rancher.

Ansible

Automating Linux server configuration and software lifecycle. Maintainer of two community Ansible roles with 1M+ Galaxy downloads and 800+ GitHub stars.

GitOps & CI/CD

Argo CD for continuous delivery, GitHub Actions and GitLab CI for the build side. Strong preference for GitOps over imperative pipelines whenever the use case allows.

Observability

Prometheus, Thanos, Loki, Grafana, Graylog, OpenSearch - running the whole stack. Comfortable in PromQL and Alertmanager.

Linux servers

10+ years managing Linux servers - RHEL, Rocky, Ubuntu - across telco and research environments. Moving from configuration management toward immutable, image-based hosts.

Cloud (public & private)

Worked with the major public clouds, AWS most. Several years on a private OpenStack cloud. Currently focused on bare-metal as a third option.

Bash & Python

Bash for the everyday glue, Python when the glue gets too sticky.

Git

Git-based development across GitHub and GitLab. Branching strategies, rebasing, conflict resolution - the daily grammar.

Experiences

European Molecular Biology Laboratory.

Feb 2024 - Present

Heidelberg, Germany

EMBL is Europe’s flagship laboratory for the life sciences.

Senior Cloud Engineer

Feb 2024 - Present

Responsibilities:

Operating and evolving on-prem Kubernetes clusters running scientific workloads.
Designing the next-generation bare-metal cloud platform built around Cluster API and GitOps.
Automating infrastructure end-to-end - from server provisioning to application delivery.
Running the platform’s observability and multi-tenancy layers.

Labyrinth Labs.

Mar 2021 - Dec 2023

Bratislava, Slovakia

Labyrinth Labs is a boutique expert shop that specializes in DevOps and cloud computing.

Cloud / DevOps Engineer

Mar 2021 - Dec 2023

Responsibilities:

As a member of a small team of experts i am helping companies to build, automate and operate their cloud infrastructure.

Deutsche Telekom Pan-Net.

March 2017 - Feb 2021

Bratislava, Slovakia

The joint pan-European network of Deutsche Telekom with main focus on moving production logic from legacy hardware platforms into the virtual environment.

DevOps Engineer / SRE

March 2017 - Feb 2021

Responsibilities:

Keeping Pan-Net internal tools reliable using the automation and SRE principles
Helping customers to onboard their applications to the Pan-Net OpenStack cloud
Participating on development of Application Lifecycle Engine

AT&T

Aug 2012 - March 2017

Bratislava, Slovakia

World’s largest telecommunications company and the largest provider of mobile telephone services in the U.S.

Linux System Administrator

Aug 2012 - March 2017

Responsibilities:

Managing 30.000+ physical and virtual Linux servers

Projects

Ansible role for RKE2

Author & maintainer Mar 2021 - Present

Ansible role to deploy and manage Rancher RKE2 Kubernetes clusters. ~1M downloads on Ansible Galaxy and ~500 GitHub stars - among the most-used RKE2 deployment roles in the community.

professional ansible rke2 k8s

Ansible role for GitHub Actions runner

Author & maintainer Mar 2020 - Present

Ansible role to deploy and manage self-hosted GitHub Actions runners. ~300k downloads on Ansible Galaxy.

personal ansible github cicd

GitHub Action for Molecule

Author & maintainer May 2020 - Present

GitHub Action to run Molecule tests for Ansible roles - used in CI for both of my Ansible roles above.

personal ansible molecule cicd

Terraform module for Libvirt

Author Dec 2020 - Present

Terraform module to provision Libvirt/KVM virtual machines on a hypervisor host.

personal terraform libvirt

Docker Compose for Home Assistant

Author Sep 2018 - Present

Alternative way to deploy Home Assistant - Docker Compose instead of the Hass.io supervisor.

personal docker home-automation

Ansible collection for WireGuard

Author & maintainer 2022 - 2023

Ansible collection to deploy and manage WireGuard servers and peers.

professional ansible wireguard vpn

Walking across Iceland

Solo walker May 2013 - Jun 2013

In 2013 I decided to challenge myself and walked alone across Iceland.

hobby hiking iceland

Details

Recent Posts

Naprieč Islandom

Doslovný prepis zapiskov z mojej sólo cesty naprieč Islandom (vrátane hrubiek:) ). Kračal som z Akureyri do Skogaru, od 18.6. do 8.7.2013. Spával som v stane, jedol dehydrovanu stravu, pil vodu z potokov a prameňov a bolo mu super. Na orientaciu som použival topografické mapy a kompas. V polovici cesty sa mi rozbil fotoaparát, takže som fotil Šmejďáckym mobilom a par fotiek kde sa mi telefon ǔz vybil som použil z cesty na Island z roku 2014, kedy som kráčal zo Skogaru do Landmannalaugaru s bratom a kamarátmi.

Sunday, January 23, 2022 | 10 minutes Read

Open-Source Dashboard

This is a list, a kind of dashboard displaying all of my actively maintained open-source projects. The dashboard shows the last version of a project. It links to the source code repository and usually also to the packages. It shows also the state of the automated tests. Ansible roles List of Ansible roles and collections. https://img.shields.io/ansible/role/d/monolithprojects Role name Version Downloads Issues Pull requests github_actions_runner hashicorp_tools hassio homebrew http_proxy_client [ kasm_server [ system_update [ tfvars2facts user_management [ rke2 nexus_config Collection name Linting Action Releaseing Action Issues Pull requests wireguard Docker-compose List of docker-compose projects. It includes weekley docker-compose up test.

Sunday, January 23, 2022 | 1 minute Read

Docker Part 1.

V tomto seriali by som chcel popísať, ako Docker vytvára kontainery. Čo je to kontajner Dnes existujú rôzne technológie, ktoré sa zaoberajú vytváraním kontajnerov. Dá sa dokonca povedať, že je okolo nich celkom pekný hype. Určite si už videl nejaké cool prezentácie o niečom čo sa volá Docker kde ti bolo jednoducho povedané, že Docker využíva namespaces, cgroups, chroot, atď. na vytváranie kontajnerov. Ale načo je toto všetko potrebné na vytvorenie kontajnera? Prečo to nieje jednoducho systémove volanie a hotovo? Pretože realita je taká, že kontajnery neexistujú - sú vymyslené. Nič také ako “linux container” v kerneli nieje. Kontajner patri do oblasti user space a teda mimo kernelu.

Sunday, January 23, 2022 | 4 minutes Read