rokpoto
Kubernetes services expose apps running as a set of Kubernetes pods using a single DNS name. In addition, Kubernetes services provide load balancing between the pods. Of course, I’ll demo how to manage services using kubectl. Keep reading to find out more.
Kubernetes deployments allow to define and enforce desired state of applications running in Kubernetes. Kubernetes deployments achieve that using ReplicaSets. ReplicaSet guarantees running the desired number of Kubernetes pods. Below, we’ll explore deployments and ReplicaSets concepts. In addition, I’ll demo how to manage them using kubectl. Keep reading to find out more.
Kubernetes pods are the smallest units of execution in Kubernetes. We’ll explore concepts behind Kubernetes pods and how to manage them using kubectl. Keep reading to find out more.
So you pulled the official Prometheus docker image and added Prometheus to your monitoring stack. Next, you tried to add a health check for Prometheus and got stuck? Keep reading to find out how to do it 🙂
Several years ago I discovered how useful Docker might be for CI/CD using Jenkins. Now, time arrived to share that with you. You may say that it’s old news because there are a lot of new tools and technologies enabling CI/CD other than Jenkins. Nevertheless, many companies still do CI/CD using Jenkins. Additionally, they might use Docker for packaging the applications. Do their Jenkins instances run in Docker as well? Preferably, they do. If you feel it’s too much, don’t worry 🙂 I’ll showcase CI/CD of web app using Docker and Jenkins. Keep reading to find out more details 🙂
While HaProxy has many uses, I’ll show how HaProxy can act as HTTP proxy. Why might you need it? For example, in order to forward HTTP traffic between 2 unreachable networks. As always, Docker will help us to raise a fully functional demo. Keep reading to find out how 🙂
Does anyone know what kafkasque is? I didn’t until I started working with Apache Kafka and discovered its nightmarish complexity 🙂 As with any technology, gaining knowledge makes complexity go away or at least complexity becomes less nightmarish.
In this (very) opinionated introduction we are going to dive into a few important aspects of Kafka. In addition, we’ll deploy basic Kafka demo using Docker. Of course, this post doesn’t replace existing great courses, books and official documentation.
Though, it gives you a basic understanding of what Kafka is and how it works.
Have you ever been frustrated by the fact that Prometheus exporters don’t export the metrics you want? I was. So I wondered how easy it is to create a custom Prometheus exporter in Python. In fact, it’s very easy to build a new Prometheus exporter using Prometheus python client.
Therefore, we’ll develop custom Prometheus exporter in Python and show how to debug it fast. For this purpose, we’ll raise a fully functional Jenkins monitoring stack using docker.
Anyone can create a fully functional WordPress website fast. Thanks to Docker, there’s no need to install LAMP stack on your computer. To demonstrate how easy it is to raise LAMP stack using Docker, we will create new WordPress website. In fact, rokpoto.com itself was created using Docker. In addition, Docker simplifies local development and testing. Keep reading to find out how 🙂