AMIS, Data Driven Blog – Oracle & Microsoft Azure
Getting value from IoT, Integration and Data Analytics
You can customize the OpenShift Container Platform web console to set a custom logo, product name, links, notifications, and command line downloads. This is especially helpful if you need to tailor the web console to meet specific corporate or government requirements. You must have administrator privileges Procedure for Custom Notification […]
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0 Some of the data used by Terraform to create cloud resources is sensitive and should not be stored in plain text in source code repositories. Examples are passwords, client secrets, API tokens. Even though the Terraform configurations are (infrastructure as) code – not every element can be treated as code. […]
0 0 This article describes how a Terraform plan can read configuration data at plan and application time from local or remote JSON documents to provide dynamic, easily and centrally maintainable settings that guide the provisioning process. Terraform variables are static: they are assigned using their default value (which cannot use function […]
0 0 Container Instances on Oracle Cloud Infrastructure are VM based environments that can be leveraged as “serverless” container runtimes. Once a container instance has been defined – which is a very simple, rapid procedure – we can specify the container images (OCI – open container initiative – compliant) for which containers […]
0 0 A Service Mesh can provide many facilities regarding traffic management between microservices – from simple routing and load balancing, producing telemetry to applying complex routing logic and security policies. This layer of logic that is applied on top of what services are doing themselves is not free: additional latency is […]
0 0 Recently the OpenTelemetry project launched a demo application that demonstrates many aspects of instrumentation, metrics and trace gathering, providing insight across multi-service, multi-technology application stacks and in general how to leverage OpenTelemetry. The application architecture for the demo stack looks like this: A front end web application – a web […]
0 0 Two colleagues wanted to try out Kubernetes and more specifically deployment of an application on Kubernetes that was not entirely trivial. One that consists of at least two Pods – one running a database and one running an application. A little internet browsing brought me to a single YAML file […]
0 0 A conference such as Devoxx is a great opportunity to get inspired into trying out tools and technologies that may not or only be vaguely be known as they are mentioned or even demonstrated by presenters or discussed in the hallways of the movie theater where the conference is taking […]
1 0 For a demo, I needed an environment with Minikube, using the Podman driver as an alternative container runtime to the Docker driver. In my previous article, I shared with you the steps I took, to get Podman in combination with Kubernetes (Minikube), working on my demo environment. [https://technology.amis.nl/recent/adding-podman-to-my-vm-with-minikube-part-1/] In this […]
0 0 For a demo, I needed an environment with Minikube, using the Podman driver as an alternative container runtime to the Docker driver. Lucky for me, I had the configuration for such an environment using Vagrant and Oracle VirtualBox. In the past, I already set up such a demo environment, available […]
0 0 Running “docker compose” in a VM on Oracle Cloud Infrastructure is perhaps not the ideal way to go – which probably would be OKE (Kubernetes) in order to benefit most from modern container infrastructure features and leverage the underlying VMs the most. However, sometimes falling back on what works and […]
0 0 Last week I passed for my RHCSA exam (EX200) [1]. While I was studying for the exam, I asked myself which parts of this exam are still relevant when you use Linux servers and Linux containers in the cloud and which parts are not. Assumptions In the cloud, we prefer: […]
0 0 How hard can it be – to create the smallest possible container image to run a Go application? It is not hard to create a container image that contains an binary executable file – and that is what a Go application turns into during the build process. However, that does […]
0 0 How to be prepared for a black swan scenario?
0 0 I’ve used Vagrant since 2015 in combination with Virtualbox for creating development machines. Recently however I’m experiencing more issues with Virtualbox. For example CPUs getting stuck when assigning multiple CPUs to a VM and issues with auto adjusting the guest resolution when resizing the VM window. These annoyances drove me […]
0 0 One of the most exciting frameworks I have ran into into recent years is Dapr (dapr.io) – distributed application runtime. Dapr is a cross technology runtime framework that supports applications in many and The Dapr docs describe how to install Dapr locally and on a Kubernetes cluster. The documentation explicitly […]
0 0 For many of my recent activities, I have not worked with or even on (knowingly at least) Kubernetes. So for many months I have not touched my OKE cluster on Oracle Cloud. However, in the last weeks, I have run into so many interesting things to dive into – that […]
0 0 In this blog I will explain how to generate static HTML pages from your projects Pydoc (docstring) comments with Sphinx. Then we are going to host it in an Azure Web App so that everyone in your team is able to access it. Because we use a Storage Mount, when […]
0 0 In this blog I will show you how to run a Jenkins agent that can use chrome from a docker container. The Dockerfile and docker-compose.yml file are explained in this article.
0 0 Oracle VM is end-of-life and is, since March 2021, in extended support1. In looking for a replacement hypervisor AMIS has turned to KVM. Oracle itself also uses KVM, albeit its own brand of KVM, OLKVM, in Oracle Cloud and on the new versions of its Oracle Database Appliance. Topped with […]
0 0 Introduction Some time ago, I wrote about the new preview feature in Azure Automation Accounts to use Managed Identities [1]. I think that it is useful to migrate to this new feature as soon as possible: managed identities are used in many places in Azure and it is better to […]
0 0 Introduction I looked into virtual network peering peering in Azure and I saw something that looked rather strange to me. Let me explain what it was, how VNet peering works and what you should be aware of from a security perspective. Situation I have two virtual networks: one for 10.1.0.0/16 […]
0 0 In this blog, I will show how you can use the SAM (Serverless Application Model) to get a presigned upload URL to AWS S3 that can be used exactly once [1]. In AWS it is possible to use a presigned URL to upload files, but the URL is valid for […]
0 0 In this blog I will show how you can use the SAM (Serverless Application Model) to get a presigned upload URL to AWS S3 that can be used exactly once [1]. In AWS it is possible to use a presigned URL to upload files, but the URL is valid for […]
0 0 In this blog, I will show how you can use the SAM (Serverless Application Model) to get a presigned upload URL to AWS S3 that can be used exactly once [1]. In AWS it is possible to use a presigned URL to upload files where the URL is valid for […]
0 0 In June I wrote a blog series about the AWS Shop Example. In this series, I also wrote about X-Ray [1]. I like X-Ray: you can see how much time each step in a whole concattenation of AWS services takes and how much time it costs to send the response […]
0 0 It took me a while, but then this blog series was ready: five blog articles about Windows Failover Clustering and Auto Scaling Groups with one node. I was happy, but then a thought was nagging me. Let me explain the problem by showing you the results for the Auto Scaling […]
0 0 You might have wondered in the second blog of this series [1], why I mentioned the possibility that the Task Scheduler didn’t start after a reboot in the “on-premise” (Hyper-V) environment, but I didn’t do so in the AWS environment. Well, that’s because I used a “trick”, where AWS will […]
0 0 Introduction If you follow along in this blog series [1], I can imagine that if you deployed the CloudFormation scripts, that you think “wow, how does it work”. In this blog, I try to answer that question. 1. Windows Failover Clustering Nested stacks When you start the CloudFormationFailover.yml script, you […]
0 0 Introduction In this series, I will look at the migration from on-premise Windows Failover Clusters to AWS. What is the difference in recovery times between the application on-premise, the 1:1 migration of a Failover Cluster to AWS and the commonly used pattern of an Auto Scaling Group with one node? […]
0 0 In the organization I’m currently working for, the OS-patch schedule depends on PatchTuesday (PT) just as Microsoft, Adobe or Oracle are using. And PatchTuesday is, as you all know, the Second Tuesday of each month. But this is a schedule you can not set in the Oracle Enterprise Manager Scheduler. […]
0 0 The OWASP Foundation plays an important role in helping to improve security of software worldwide. They have created a popular and well-known awareness document called the ‘OWASP Top 10‘. This document lists the following risk: using components with known vulnerabilities. Software nowadays can be quite complex consisting of many direct and […]
0 0 In this article, you can read more about the Quarkus code guide I tried out, related to the following topic: The ability to automatically generate Kubernetes resources by Quarkus The guide covers generating and deploying Kubernetes resources based on sane defaults and user supplied configuration. In this article, I will […]
0 0 In this article, you can read more about the Quarkus code guide I tried out, related to the following topic: The ability to automatically generate Kubernetes resources by Quarkus The guide covers generating and deploying Kubernetes resources based on sane defaults and user supplied configuration. In this article, I will […]
0 0 In this article, you can read more about the Quarkus code guide I tried out, related to the following topic: The ability to automatically generate Kubernetes resources by Quarkus The guide covers generating and deploying Kubernetes resources based on sane defaults and user supplied configuration. In this article, I will […]
0 0 Kubernetes is a popular platform to run and manage containerized applications. A CI/CD solution is often needed but not always provided. You might need to set this up for yourself. In this blog post I’ll provide a minimal end-to-end solution for Java applications. This starts with a commit in source […]
0 0 In this article, you can read more about a Quarkus code guide I tried out, related to the following topic: Packaging the native executable in a container In a next article, you can read more about another Quarkus code guide I tried out, related to the following topic: The ability […]
0 0 OpenEBS provides a Kubernetes native distributed storage solution which is friendly on developers and administrators. It is completely open source and part of the CNCF. Previously I wrote about installing and using OpenEBS, Jiva storage engine, on the Charmed Kubernetes distribution of Canonical. The Jiva storage class uses storage inside managed […]
0 0 There are various options to install a production-like Kubernetes distribution on your laptop. Previously I tried out using the Canonical stack (Juju, MAAS, Charmed Kubernetes) for this. This worked nicely but it gave me the feeling that it was a bit Canonical specific and it felt a bit heavy on resources at […]
0 0 Introduction We are in production with our shop example [1]. We’d like to get some statistics about our implementation: how often are the Lambda functions called? How fast are they? Of course, we could use the statistics from the performance test, but there is a faster way. This faster way […]
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