Moving a 15-year-old Java 1.4 Application from Oracle AS 10g to WebLogic 12g on Kubernetes in Record Timeframe not Dying in the Intent nor Losing any Line of Code

Not all monoliths should be killed because they are! This is the true story about migration and modernisation of a travel sector solution based on ADF, Java 1.4, Struts, Jac¡vaScript and PHP running on Oracle Application Server 10 and Oracle 10g database. Perhaps old people in town can remember things such as OAS, OC4J, jHeadStart, […]


“Kool” Kubernetes Client Tools

When working with k8s, you typically have several clusters and a bunch of namespaces per cluster, the following tools can help you manage the stuff with easy. kubectx + kubens kubectx allows you to change the context between different k8s clusters kubens allows you to change between different namespaces in the current cluster context brew […]


Set Up an Ingress Controller in OKE Cluster

Here a recipe to create a ingresscontroller. Step 1: setting up the nginx ingress controller kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/static/mandatory.yaml Step 2: exposing the ingress as a service of type LoadBalancer (as a public IP) kubectl apply -f https://raw.githubusercontent.com/javiermugueta/rawcontent/master/cloud-generic.yaml Step 3: Execute this command several times until the external-ip appears as non <pending>, grab the IP […]