Docker, WebLogic Image on Amazon EC2 Container Service

This blog series shows how to get started with WebLogic and Docker – in 3 different Clouds:

This blog is running a WebLogic Docker (more...)

Docker, WebLogic Image on Microsoft Azure Container Service

This blog series shows how to get started with WebLogic and Docker – in 3 different Clouds:

This blog is running a WebLogic Docker (more...)

Docker, WebLogic Image on Oracle Container Cloud Service

This blog series shows how to get started with WebLogic and Docker – in 3 different Clouds:

Starting point & Outline

Starting point for (more...)

Docker, WebLogic Images on Local Linux

This blog series shows how to get started with WebLogic and Docker – in 3 different Clouds:

This blog is about creating and running (more...)

Docker, Oracle Images and Cloud

Overview

Oracle is embracing Docker – just like many other companies – as the de-facto standard in Container technologies. It has resulted in the certification of various Oracle products for running in Docker containers and even Oracle supported Docker images are available. Furthermore, Oracle offers 2 Cloud Service around containers: the Container Cloud Service is a generic service that offers a platform for running your containers. Next to that, Oracle offers the Application Container Cloud (more...)

Node.js run from GitHub in Generic Docker Container backed by Dockerized Redis Cache

In a previous article I talked about a generic Docker Container Image that can be used to run any Node.js application directly from GitHub or some other Git instance by feeding the Git repo url as Docker run parameter (see https://technology.amis.nl/2017/05/21/running-node-js-applications-from-github-in-generic-docker-container/). In this article, I create a simple Node.js application that will be pushed to GitHub and run in that generic Docker container. It will use a Redis cache that (more...)

Running Node.js applications from GitHub in generic Docker Container

This article shows how I create a generic Docker Container Image to run any Node.JS application based on sources for that application on GitHub. The usage of this image is shown in this picture:

 

image

Any Node.JS application in any public GitHub repo can be run using this Docker Container Image. When a container is run from this image, the url for the GitHub Repo is passed in as environment variable – as (more...)

Sequential Asynchronous calls in Node.JS – using callbacks, async and ES6 Promises

One of the challenges with programming in JavaScript (ECMA Script) in general and Node.JS in particular is having to deal with asynchronous operations. Whenever a call is made to a function that will handle the request asynchronously, care has to be taken to be prepared to receive the result from the function in an asynchronous fashion. Additionally, we have to ensure that the program flow does not continue prematurely – only those steps that (more...)

Oracle Database standard Geo Location Support using Locator (included in every edition!)

imageMany databases have native support for locations en geodata – and determining distance and closest locations (within a certain perimeter). Oracle Database has the [Graph and] Spatial Option – that supports even the most advanced and exotic forms of location related data querying (including multidimensional shapes and probably relativistic effects); this option comes on top of Enterprise Edition and carries additional costs. What may be not as well know is the Locator functionality that is (more...)

Fastest creation of a Lean VirtualBox VM Image with Oracle Database 11gR2 XE, the Node.JS 7.x and the Oracle DB Driver for Node

For a workshop on Node.js I needed a VM to demonstrate and students try out the Oracle DB Driver for Node. I wanted a lean VM with the bare minimum: Oracle Database XE, Node, the Oracle DB Driver for Node and the Git client (for fetching sources from GitHub). I stumbled across the OXAR repository in GitHub (https://github.com/OraOpenSource/OXAR ) – Oracle XE & APEX build script along with images for popular cloud (more...)

HTTP Server redirects for Weblogic 12c and SAML2

Last few months I got busy with SAML2 and Weblogic 12c as Service Provider. One with ADFS and another using SurfConext as an IdP.

In both cases a HTTP server is used as a reversed proxy, in one case it is Oracle HTTP Server 12c, in the other we use Apache. Although OHS is based on Apache, of course, it has the Weblogic proxy plugin enabled by default. With Apache this is not the case.

(more...)

Server Sent Events from Node.js to Web Client – pushing user command line input to all Subscribed Browser Sessions

imageNode can push messages to browser clients, using WebSockets and the simpler Server Sent Events (SSE) mechanism. We will use the latter in this article – to push updates (event) to all subscribed browser clients.

The browser loads index.html from the Node.js server. This file contains a JavaScript fragment that makes an AJAX call to the Node.js server (URL: /updates ) to register as a SSE Client. As part of that subscription, (more...)

Quickest way to get going with Node.js and MongoDB – using the mongodb Node driver and a free MongoDB instance in the cloud with mLab

imageWhile preparing for a workshop on Node.js, I ran into the by far quickest way to get some a simple Node.js application  running against a  MongoDB database. I stumbled into mLab (https://mlab.com/) for database hosting. This company offers various plans for cloud based MongoDB environments – including a free plan for an environment with up to 500 MB data. Plenty for a quick trial of the Node.JS => MongoDB (more...)

TCO cloud calculator Oracle and AWS

One of the main reasons to move to the cloud is the promise of a decreasing Total Cost of Ownership. But the calculation of the TCO (IaaS) is not always easy to do. Luckily some cloud-providers provide also the so-called TCO-calculators for comparising the TCO of your IT on-premise with the Cloud-solutions. I was already aware of Amazon’s AWS TCO calculator, but it came to my attention that Oracle has got on too(more...)

Oracle SOA Suite: Two-way SSL with TLS1.2 made easy (slightly less complicated)

Transport layer security (TLS) is not an easy topic. Many blogs have been written about this already. Surprisingly though, I did not find a single blog which was more or less complete and provided me with everything I needed to know to get this working on SOA Suite 12.2.1. In this blog I try to make the topic more easy to understand and provide a complete end to end example.

Suppose you only (more...)

BPEL 12.2.1.2 and UMS: no wire target for reference…

A moment ago I stumbled on this question on the Oracle community. User Saurabh  tries to build a composite to send email from BPEL. But on testing the deployed composite in EM it fails with a remote fault. This despite of a correct configuration of the email driver and being able to test that   using soa-infra -> Service Engines -> Human Workflow -> Notification Management.

He found that the problem was a bug in JDeveloper/SOA (more...)

Introducing Darwin Oracle Type Accelerator


Years ago, I created a set of XSL templates and queries to create object types out of queries on the datadictionary of the Oracle Database. It only did basic types on tables, and selects on those. I wrote an article on it that still can be downloaded here. Later, I extended the framework to also do inserts and updates and follow foreign keys. The thing with foreignkeys is that you can handle them a as (more...)

Consequences of stopping Oracle support

When buying licenses for Oracle, the first year support is mandatory. After that, a Customer may decide to stop paying for the yearly technical support of the Oracle licenses. The consequences of that decision is not always clear to customers. Most OLSA’s will contain the sentence   “If you decide not to purchase technical support, you may not update any unsupported program licenses with new versions of the program.”

This is correct, but (more...)

List Weblogic 12c System Components

Besides starting and stopping servers, it turns out handy to be able to list the particular system components of a Weblogic domain. For most domains, you might have an embedded/colocated Oracle HTTP server.
But we're also busy with installing BI publisher domains, and there several BI Components are created. To list which ones are created (and determine where things might went wrong) it might be handy to list all the system components. For that I (more...)

Single Sign On for Apex with ADFS? With Weblogic 12c and ORDS: Yes, you can!

Lately we implemented a Single Sign On solution for Apex, based on Weblogic 12cR2, ORDS 3.0.9, and ADFS as a federated Identity Provider. This combination turns out to be a marriage of 3 different worlds. So we ran in to a several issues that were not described in one simple how-to document. So in this document I try to assemble the information needed to do the end 2 end configuration (apart from the (more...)