PinnedInjecting secrets from Vault into Helm charts with ArgoCDManaging secrets in Kubernetes isn’t a trivial topic. As is usual with Kubernetes, there are always many ways to achieve the desired goal and it’s often a problem to choose the right one for our case. In this article, I will show you one of ways to use ArgoCD with…Vault8 min readVault8 min read
Published inDevOps.dev·PinnedSpring Boot monitoring with Prometheus OperatorIn this article, we will install a Prometheus Operator that will automatically detect targets for monitoring. If you have used Prometheus before, either without the Operator or outside of Kubernetes, you will see how the Operator and its CRDs can make Prometheus flexible and how many things can happen magically…Prometheus7 min readPrometheus7 min read
Published inAWS Tip·PinnedCold starts with SnapStart for Java Frameworks (Spring Boot vs Quarkus vs Micronaut)At the last re:Invent 2022 AWS gave a lot of attention to the term Serverless. The main Keynote of AWS CTO Dr. Werner Vogels was very saturated with an asynchronous approach and event-driven architecture. Also, new announcements were very closely related to these topics e.g. …AWS Lambda8 min readAWS Lambda8 min read
PinnedSubjective comparison of Security Testing products. Sonatype vs JFrog vs SnykFor many years now, it has been impossible to imagine building solutions not relying on open source. In fact, every project I’ve worked on has benefited more or less from community development. This trend doesn’t apply only to product companies and start-ups. Large financial institutions and other critical sectors are…Snyk3 min readSnyk3 min read
PinnedCertified Kubernetes Application Developer (CKAD) - Everything you need to knowThe preparations and the CKAD exam are behind me. So the time has come to summarize and write down experiences that may help someone of you pass this exam. In this post, I will try to introduce you to Kubernetes certification. I will present materials that will help you prepare…Ckad8 min readCkad8 min read
Mar 11API Caching with ElastiCache Redis & AWS LambdaIn this article, we will not only explore the benefits of using Redis as a caching solution for a REST API, but I’ll also provide a practical example of how to implement Redis caching in a serverless environment using AWS Lambda with TypeScript. I’ll demonstrate how to call an external…Serverless5 min readServerless5 min read
Jan 6Spring Boot logging with Loki, Promtail, and Grafana (Loki stack)In the previous article, I presented how to setup a monitoring stack using Prometheus Operator and integrate it with a sample Spring Boot app. This post will be analogous to the previous one but will be about another important topic — logs. We will use Spring Boot application in demo…Logging5 min readLogging5 min read
Dec 21, 2022Vault Auto-unseal using Transit Secret Engine on KubernetesTheoretical introduction To make the Vault operational once it has been installed, we need to perform two actions: Intialzie Vault Unseal Vault Unsealing has to happen every time Vault starts. This is because Vault starts with sealed state in which it can’t read storage because it doesn’t know how to decrypt it. …Vault6 min readVault6 min read
Dec 18, 2022Switching between multiple versions of various toolsI'm sure you've worked on different projects that used different versions of tools despite having the same technology stack. Whether you work as a frontend dev, backend dev, or DevOps, this problem can happen anywhere. Switching between versions of various tools can be tricky and painful. In this article, I…DevOps2 min readDevOps2 min read
Nov 12, 2020GCP Professional Cloud Architect Certification - Everything you need to knowThere is a high probability that you came here looking for an answer to the question of how to pass the GCP Professional Cloud Architect exam? If so, I hope you can find some helpful information here. I’m not going to list all the questions you might come across here…Gcp Certification6 min readGcp Certification6 min read
