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4 months ago
devops jsonnet vault env devex tilt

Sharing Development Secrets with the Team using Vault

4 min read

My most recent projects have consisted of using a microservice architecture and multiple third party services (analytics, events etc.). For better or worse, this seems to be getting more popular, even for smaller companies and startups. Local development becomes more …


7 months ago
django devops celery celery-beat

Simple Django User Session Clearing using Celery

1 min read

Django provides session support out-of-the-box and stores sessions in the django_session database table. Django leaves it up to the project maintainers to purge sessions in their Django project. This means that if it's not done on a regular basis the …


2 years ago Popular post!
devops slack sre alertmanager chatops

Creating Awesome Alertmanager Templates for Slack

6 min read

Prometheus, Grafana and Alertmanager is the default stack for me when deploying a monitoring system. The Prometheus and Grafana bits are well documented and there exists tons of open source approaches on how to make use of them the best. …


3 years ago
devops ci/cd jsonnet argo-cd tanka vault

GitOps Secret Management with Vault, ArgoCD and Tanka

7 min read

Recently I wrote a blog post on how to use Grafana's Tanka with ArgoCD which is my prefered way to write Kubernetes configuration in Jsonnet. However, the post does not go into detail on the last missing piece - how …


3 years ago
devops ci/cd jsonnet argo-cd tanka

GitOps with ArgoCD and Tanka

10 min read

GitOps is becoming the standard of doing continuous delivery. Define your state in Git, automatically update and change the state when pull requests are merged. Within the Kubernetes ecosystem two tools have become very popular for doing this FluxCD and …


3 years ago
devops infrastructure argo-cd ci-cd

Migrating Kubernetes Resources between ArgoCD Applications

1 min read

I've been using ArgoCD for a while now, and as time went by I started to splitting my Kubernetes resources into smaller ArgoCD Applications. However, I could not figure out clear guidelines on how to do it without downtime. Recently …


3 years ago Popular post!
devops kubernetes ebs aws

Migrating Kubernetes PersistentVolumes across Regions and AZs on AWS

4 min read

Persistent volumes in AWS are tied to one Availability Zone(AZ), therefore if you were to create a cluster in an AZ where the volume is not created in you would not be able to use it. You will need to …


3 years ago
devops kubernetes aks gke eks

Creating a Low Cost Managed Kubernetes Cluster for Personal Development using Terraform

5 min read

Kubernetes is an open-source system that's popular amongst developers. It automatically deploys, scales, and manages containerized applications. Yet for those working outside of the traditional startup or corporate setting, Kubernetes can be CPU and memory-intensive, disincentivizing developers from using a …


3 years ago Popular post!
cloudflare devops web-dev cloudflare-workers sre

Quick, Pretty and Easy Maintenance Page using Cloudflare Workers & Terraform

3 min read

Maintenance pages are a neat way to inform your users that there are operational changes that require downtime. Cloudflare Workers allows you to execute Javascript and serve HTML close to your users and when Cloudflare manages your DNS it makes …


4 years ago
devops prometheus kubernetes

Monitoring Kubernetes InitContainers with Prometheus

1 min read

Kubernetes InitContainers are a neat way to run arbitrary code before your container starts. It ensures that certain pre-conditions are met before your app is up and running. For example it allows you to: - run database migrations with Django …