The Six-part REAL Oracle Cloud platform Webinar Series – Cloud Native Live Demo and Hands-On Oracle Developer Meetup sessions – kicking off June 10th 2020

Lucas Jellema 1

Attend this series of six live webinars to get going with cloud native application development on the Oracle Cloud platform, created and presented by REAL specialists. The Red Expert Alliance (aka REAL) is a network of Oracle partners on four continents that have joined forces to share knowledge and experience […]

Creating a re-usable Vagrant Box from an existing VM with Ubuntu and k3s (with the Kubernetes Dashboard) and adding mysql, using Vagrant and Oracle VirtualBox

Marc Lameriks

In a previous article, I shared with you the steps I took, to get k3s installed (with the Kubernetes Dashboard) on top of an Ubuntu guest Operating System within an Oracle VirtualBox appliance, with the help of Vagrant. [ https://technology.amis.nl/2020/01/15/rapidly-spinning-up-a-vm-with-ubuntu-and-k3s-with-the-kubernetes-dashboard-on-my-windows-laptop-using-vagrant-and-oracle-virtualbox/] For training and demo purposes, I wanted to add mysql […]

Rapidly spinning up a VM with Ubuntu and k3s (with the Kubernetes Dashboard) on my Windows laptop using Vagrant and Oracle VirtualBox

Marc Lameriks

In November of last year, my colleague Lucas Jellema, wrote an article with the title “Ultra fast, ultra small Kubernetes on Linux – K3S beating minikube”. [https://technology.amis.nl/2019/11/12/ultra-fast-ultra-small-kubernetes-on-linux-k3s-beating-minikube/] For training and demo purposes, on my Windows laptop, I already had an environment with a guest Operating System, Docker and Minikube available […]

Using Elastic Stack, Filebeat and Logstash (for log aggregation)

Marc Lameriks

In a previous article I described how I used ElasticSearch, Filebeat and Kibana, for log aggregation (getting log information available at a centralized location). [https://technology.amis.nl/2019/09/15/using-elastic-stack-filebeat-for-log-aggregation/] In this article I will talk about the installation and use of Filebeat in combination with Logstash (from the Elastic Stack).

Changing the configuration of an Oracle WebLogic Domain, deployed on a Kubernetes cluster using Oracle WebLogic Server Kubernetes Operator (part 2)

Marc Lameriks

At the Oracle Partner PaaS Summer Camp IX 2019 in Lisbon, held at the end of August, I followed a 5 day during workshop called “Modern Application Development with Oracle Cloud”. In this workshop, on day 4, the topic was “WebLogic on Kubernetes”. [https://paascommunity.com/2019/09/02/oracle-paas-summer-camp-2019-results-become-a-trained-certified-oracle-cloud-platform-expert/] At the Summer Camp we used […]

Changing the configuration of an Oracle WebLogic Domain, deployed on a Kubernetes cluster using Oracle WebLogic Server Kubernetes Operator (part 1)

Marc Lameriks

At the Oracle Partner PaaS Summer Camp IX 2019 in Lisbon, held at the end of August, I followed a 5 day during workshop called “Modern Application Development with Oracle Cloud”. In this workshop, on day 4, the topic was “WebLogic on Kubernetes”. [https://paascommunity.com/2019/09/02/oracle-paas-summer-camp-2019-results-become-a-trained-certified-oracle-cloud-platform-expert/] At the Summer Camp we used […]

Deploying an Oracle WebLogic Domain on a Kubernetes cluster using Oracle WebLogic Server Kubernetes Operator

Marc Lameriks 1

At the Oracle Partner PaaS Summer Camp IX 2019 in Lisbon, held at the end of August, I followed a 5 day during workshop called “Modern Application Development with Oracle Cloud”. In this workshop, on day 4, the topic was “WebLogic on Kubernetes”. [https://paascommunity.com/2019/09/02/oracle-paas-summer-camp-2019-results-become-a-trained-certified-oracle-cloud-platform-expert/] At the Summer Camp we used […]

Using Elastic Stack, Filebeat (for log aggregation)

Marc Lameriks

In my last article I described how I used ElasticSearch, Fluentd and Kibana (EFK). Besides log aggregation (getting log information available at a centralized location), I also described how I created some visualizations within a dashboard. [https://technology.amis.nl/2019/05/06/using-elasticsearch-fluentd-and-kibana-for-log-aggregation/] In a new series of articles, I will dive into using Filebeat and […]

Using ElasticSearch, Fluentd and Kibana (for log aggregation)

Marc Lameriks

In my last article I described how I installed ElasticSearch, Fluentd and Kibana (EFK). [https://technology.amis.nl/2019/04/23/using-vagrant-and-shell-scripts-to-further-automate-setting-up-my-demo-environment-from-scratch-including-elasticsearch-fluentd-and-kibana-efk-within-minikube/] In this article I will dive into using ElasticSearch, Fluentd and Kibana. Besides log aggregation (getting log information available at a centralized location), I will also describe how I created some visualizations within a dashboard. […]

Using Vagrant and shell scripts to further automate setting up my demo environment from scratch, including ElasticSearch, Fluentd and Kibana (EFK) within Minikube

Marc Lameriks

For training and demo purposes, on my windows laptop, I needed an environment with a guest Operating System, Docker and Minikube available within an Oracle VirtualBox appliance. So, in a series of articles up till now, I described the following: The steps I took, to get Docker and Minikube (using […]

Running Apache Kafka on Minikube

Lucas Jellema

I frequently want to demonstrate the working of Apache Kafka and/or provide colleagues and other audiences with an environment for a workshop that involves Apache Kafka. I have been struggling to find  a good way to get Kafka to function properly on Minikube – the standalone, single node Kubernetes cluster […]

Minikube on KVM on Linux Mint 19.1

Maarten Smeets

In a previous blog post I wrote about running Minikube on Windows. I ended with the suggestion that getting Minikube working might be much easier on Linux. Thus I installed Linux Mint (as dual-boot) on my laptop and gave it a shot. The steps I took to get it working […]

First Steps with Prometheus and Grafana on Kubernetes on Windows

Lucas Jellema 1

Preparation: before I started with Prometheus, I installed VirtualBox, Minikube with Tiller on my Windows 10 laptop – as described in this article: https://technology.amis.nl/2018/08/13/running-kubernetes-1-10-using-minikube-on-windows-10-adding-kubectl-and-helm-tiller/. I then increased the Base Memory setting for the minikube vm to 8192 MB (the default 2048 MB is not sufficient) After making this change – […]

Running Kubernetes 1.10 using MiniKube on Windows 10 (adding kubectl and helm/tiller)

Lucas Jellema 1

Some quick steps to get Minikube for K8S 1.10 up and running on Windows 10 (presuming VirtualBox has already been installed) Download kubectl binary from: https://storage.googleapis.com/kubernetes-release/release/v1.11.0/bin/windows/amd64/kubectl.exe  Copy kubectl.exe to any directory of your liking; add that directory to the PATH environment variable. Download minikube from https://github.com/kubernetes/minikube/releases  Download the minikube-windows-amd64.exe file, […]

Running Istio on Oracle Kubernetes Engine–the managed Kubernetes Cloud Service

Lucas Jellema

In a recent post, I introduced the managed Oracle Cloud Service for Kubernetes, the Oracle Kubernetes Engine (OKE): https://technology.amis.nl/2018/05/25/first-steps-with-oracle-kubernetes-engine-the-managed-kubernetes-cloud-service/. A logical next step when working with Kubernetes in somewhat challenging situations, for example with microservice style architectures and deployments, is the use of Istio – to configure, monitor and manage […]

First steps with Oracle Kubernetes Engine–the managed Kubernetes Cloud Service

Lucas Jellema 2

Oracle recently (May 2018) launched its Managed Kubernetes Cloud Service (OKE – Oracle Kubernetes Engine) – see for example this announcement: https://blogs.oracle.com/developers/kubecon-europe-2018-oracle-open-serverless-standards-fn-project-and-kubernetes. Yesterday I got my self a new free cloud trial on the Oracle Public Cloud (https://cloud.oracle.com/tryit). Subsequently, I created a Kubernetes cluster and deployed my first pod on […]

Get going with KSQL on Kubernetes

This article describes how to quickly get going with KSQL on Kubernetes. KSQL is Confuent’s ‘continuous streaming query language’. It allows us to write SQL-like queries that operate on Kafka Topics. Queries that join, filter and aggregate – for each event that gets produced and over time windows. Results are […]

Installing Minikube and Kubernetes on Windows 10

Lucas Jellema

Quick notes on the installaton of Minikube for trying out Kubernetes on my Windows 10 laptop (using VirtualBox –not Hyper-V) Following instructions in https://www.ibm.com/support/knowledgecenter/en/SS5PWC/minikube.html  Download Windows installer for MiniKube: https://github.com/kubernetes/minikube/releases Run installer After running the installer, open a command line window Download kubectl.exe curl -o kubectl.exe https://storage.googleapis.com/kubernetes-release/release/v1.8.0/bin/windows/amd64/kubectl.exe Copy downloaded file […]