Welcome to Yet Another Useless Blog

Tutorial 8 of OpenShift 4 and Service Mesh tries to cover Fault Injection by using Chaos testing method to verify if your application is running. This is done by adding the property HTTPFaultInjection to the VirtualService. The settings for this property can be for example: delay, to delay the access or abort, to completely abort the connection.

"Adopting microservices often means more dependencies, and more services you might not control. It also means more requests on the network, increasing the possibility for errors. For these reasons, it’s important to test your services’ behavior when upstream dependencies fail." [1]

Notes taken during Red Hat course D410 Ansible and Ansible Tower.

Sometimes services are only available from outside the OpenShift cluster (like external API) which must be reached. Part 7 of OpenShift 4 and Service Mesh takes care and explains how to control the egress or external traffic. All operations have been successdully tested on OpenShift 4.3.

Welcome to part 6 of OpenShift 4 and Service Mesh Advanced routing, like Canary Deployments, traffic mirroring and loadbalancing are discussed and tested. All operations have been successdully tested on OpenShift 4.3.

This is a list of useful oc and/or kubectl commands so they won’t be forgotton. No this is not a joke…​

In part 5 of the OpenShift 4 and Service Mesh tutorials, basic routing, using the objects VirtualService and DesitnationRule, are described. All operations have been successfully tested on OpenShift 4.3.

Often the question is how to get traffic into the Service Mesh when using a custom domains. Part 4 our our tutorials series OpenShift 4 and Service Mesh will use a dummy domain "hello-world.com" and explains the required settings which must be done.

Part 3 of tutorial series OpenShift 4 and Service Mesh will show you how to create a Gateway and a VirtualService, so external traffic actually reaches your Mesh. It also provides an example script to run some curl in a loop.