Overview of hardened container base images
10.08.2021
How to choose the best container base image? What does „best“ mean in this context? This blog post will not... Weiterlesen
Beiträge von Christian Zunker
Site Reliability Engineering: Software in Produktion betreiben
13.07.2021
In letzter Zeit hat Site Reliability Engineering (SRE) viel Aufmerksamkeit erregt. Mit SRE kamen Metriken wie Service-Level Objectives (SLO), Service-Level... Weiterlesen
Site Reliability Engineering: Running software in production
02.07.2021
Lately, Site Reliability Engineering (SRE) has been getting a lot of attention. With SRE came metrics such as Service-Level Objective... Weiterlesen
How to use OAuth2 Proxy for central authentication
08.06.2021
This blog post will show you how to use one central OAuth2 Proxy as authentication proxy for multiple services inside your Kubernetes Cluster. Weiterlesen
The how of monitoring your services
17.11.2020
In this blog post I take a look at two examples of what can go wrong in monitoring. This is about the how of monitoring your services. Weiterlesen
Configuring Kubernetes login with Keycloak
Kubernetes does not have its own user management and relies on external providers like Keycloak. This blog post will describe how to configure Kubernetes to use Keycloak as an authentication provider. Weiterlesen
Configure your Gitlab CI with docker-machine against keystone v3
27.11.2018
This blog post will describe how to enable docker-machine to properly talk to the keystone v3 API in a Gitlab CI infrastructure. Weiterlesen
Measure your radosgw usage with OpenStack-Ansible
We use OpenStack-Ansible to set up our OpenStack cluster and Ceph's Rados Gateway (radosgw) as object store backend. Weiterlesen
Measuring your OpenStack Cloud with Gnocchi and Ceph storage backend
To solve our performance problems with Gnocchi and the whole OpenStack telemetry stack, we tried Gnocchi with Ceph as backend... Weiterlesen
Modifications to the CoreOS Ambassador Pattern
17.11.2015
In this post I explain my changes to the ambassador pattern I implemented during a microservices project earlier this year.... Weiterlesen
Monitoring für die Cloud
26.10.2015
In diesem Artikel geht es um das Monitoring von Systemparametern wie CPU-Last, Speicherverbrauch etc. innerhalb einer Cloud. Das sind die... Weiterlesen
Docker Ambassador mit HAProxy und etcd
14.08.2015
In einem vorherigen Artikel habe ich über den allgemeinen Aufbau des Ambassador in einem gemeinsamen Projekt der LeanIX GmbH mit... Weiterlesen
Variation des Ambassador Pattern von CoreOS
13.08.2015
In diesem Artikel möchte ich die konzeptionellen Änderungen am Ambassador Pattern erläutern, die sich im gemeinsamen Microservices Projekt der LeanIX... Weiterlesen
Case Study: Microservices bei LeanIX
12.08.2015
Heute schreibe ich über ein gemeinsames Projekt der LeanIX GmbH und der codecentric AG, in dem die Architektur der leanIX... Weiterlesen
Nicer Ansible output for Puppet tasks
16.04.2015
In a previous post, I wrote about executing Puppet from within an Ansible playbook. But the output did not look... Weiterlesen
Migrate from Puppet to Ansible
17.12.2014
In a previous post, I wrote about combining Ansible and Puppet, with Ansible as remote executor for arbitrary commands. In... Weiterlesen
Ansible as remote executor in a Puppet environment
22.09.2014
When you are using Puppet you might know this problem: How can I execute arbitrary commands on all or some of... Weiterlesen