All EKS clusters come with default AWS CNI plugin that provides some nice features like getting an address within VPC subnet range, with a performance of ENI. So why on earth you may want to use some other CNI? Apart from some SNAT issues you may encounter while deploying first clusters there’s one BIG limitation […]
Ansible over AWS Systems Manager Sessions – a perfect solution for high security environments
Ansible is great, it’s one of my favorite tools. It works like a charm, but… it requires SSH connection to the target host, which can be a problem in some high security environments, like the ones where SSH on the host is not allowed or the ones that work in VPCs without external connectivity. However, […]
ArgoCD vs Flux
Yesterday Weaveworks announced that they’re joining forces with ArgoCD – my favorite GitOps tool for Kubernetes. I think it’s a good time to compare what ArgoCD and Flux have in common and what are their differences. Repositories The basic features are the same – both tools allows us to connect Git repository and sync its […]
Ansible Operators – let’s give them a spin
A couple weekends ago I had some time to try new things and I decided it’s high time to make some Kubernetes operators using Operator SDK with one of its core feature – Ansible operator support. But… what is operator-sdk? Although you can write Kubernetes operator using pure Go with Kubernetes client libraries, it takes […]
“GitOps – introduction, tools and best practices” – an invitation to my speech
Many people know and use Infrastructure-as-a-code approach. GitOps is a “next step” in infrastructure and application automation. During my speech I’ll introduce you into secrets of GitOps, I’ll show you tools required for successful operations and tell you something about best practices you should apply. The meeting fill be held at Codecool headquarters (ul. Ślusarska […]
Monitoring Prometheus alerting pipeline health using CloudWatch
Prometheus is great when it comes to alerting, it’s also quite easy to setup in highly available configuration. However, from economic point of view, it’s sometimes not a solution as Prometheus, depending on number of targets and metrics, may require quite a lot of resources. So it’s common to run non-HA setup in dev and […]
How to restore EBS snapshots with Ansible?
So you backup your EBS volumes, but do you actually test if you can recover them? How long does it take to restore EBS snapshot and bring your EC2 instance back to life? In this post I’ll show you how to automatate EBS restore process using Ansible and stop worrying about RTO :) The restore […]
Łukasz Tomaszkiewicz
Łukasz Tomaszkiewicz is a highly skilled and passionate cloud expert who loves to automate repeatable things and secure them.
His broad experience in the areas of software development, database design, containerization and cloud infrastructure management gives him a holistic view of a modern technology stack.
In his spare time he enjoys photography, blogging and speaking on local IT-related communities.
Vim-believer :)