Recently I’ve been doing some research on the abilities to restore MySQL databases on AWS RDS. The customer requirement was to have 15 minutes RPO for databases. Can we meet the requirement with AWS RDS alone? At the first moment I thought so, but then I considered whan happens when someone does “accidential deletion” of […]
AWS Lambda and MySQL IAM Authentication in Go
Recently I’ve tried to write a lambda function in Go, which connects to MySQL database on RDS instance and use IAM Authentication instead of “traditional” approach with passwords (which I think is an anti-pattern in cloud environments). I’ve spent way too much time to solve the problem, but the documentation and examples on the Internet […]
First impressions of Google Cloud Platform by AWS Expert
I love learning new things and recently I’ve been learning Kubernetes. After trying it on localhost with Minikube I wanted something more production-like. As AWS doesn’t offer any Kubernetes-as-a-service yet, I’ve tried Azure Kubernetes Service but encountered some issues, so I thought why not check Google’s offer? I’ve never used Google Cloud before and as […]
How to update CentOS/RHEL using Ansible?
On the web you can find many tips about how to update CentOS/RHEL linux systems. Some of them are quite old and do not leverage new features available in recent Ansible versions, other has some issues or do not provide a nice way to display what’s going on. Recently I’ve spent some time tuning ansible […]
Work comfortable with AWS CLI profiles in Bash
As I work with multiple AWS accounts every day I need to switch between them very often. It’s a key issue for me to always be sure on which account I work and execute AWS CLI command. So I wrote a quick bash function that I put in my .bashrc. The function is used in my […]
Configure AWS CLI profiles – quickly and efficiently
If one uses more than one AWS account it’s absolutely necessary to configure profiles for AWS CLI. The configuration is made of two files: .aws/credentials and .aws/config. The former contains access keys to AWS accounts – you should never add the file to the version control, the latter contains additional configuration and can be versioned. Separate credentials […]
“Immutable infrastructure: automate VM template creation using Packer and Ansible” – an invitation to my speech
I’d like to invite you to my first speech on AWS User Group in Kraków. The group has reborn after a long period of being inactive and I’m happy I can be a part of it. During my speech I’ll tell you about “immutable infrastructure” approach, why it is worth to create virtual machine templates, […]
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 :)