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An Introduction to Container Management, Kubernetes, and Stateful Apps

Containers are essential enablers for distributed applications following a micro-service pattern. A container is an easy, convenient, and safe way for developers to package their applications. Most importantly the risk of breaking other application’s software and library dependencies is greatly reduced by these self-contained artifacts compared to traditional “app-server” deployments using virtual machines. This is especially true if the container runs a stateless application! The talk features an overview of container technology for Oracle database professionals. It starts with an introduction of running containers locally on a development machine before focusing on more advanced topics. Since running individual containers is complicated container orchestration frameworks have been developed. Today’s best-known container orchestration framework is Kubernetes. Attendees can learn more about this important platform in the second half of the presentation. Many introductory talks on the subject don’t address a very important piece of the landscape: the persistent data store required for any stateful application. There are many ways of using the Oracle database in such application deployments, and attendees can learn about the most common ones in this presentation.

APEX Application lifecycle with feature based deployment

APEX application deployment is mostly done by exporting the application and importing it into the target environment. But what if your team continuously develops (as they should), where do you stop developing to start preparing your release-deployment? You should be able to deploy based on features; without your developers having to halt their development. Using the deployment-method explained in this presentation you will be able to do just that. The method includes things like Code versioning (GIT), Feature-tickets (Jira), Code Review (Quality), Automated Deployment using Jenkins and Flyway. When implemented you will be able to successfully and predictively deploy your APEX applications (including underlying database objects) to the different deployment-environments. With a few modifications you can even upgrade the methodology to be a ""continuous delivery"" methodology.

Cookie Cutter APEX Applications

In a perfect world your APEX SAAS solution would be deployed with a click of a button, have a separate database for each customer, and can a customer choose when they want to upgrade to the next version. In this perfect world, the customer don't have to worry about default lookup data, because the SAAS provider does that. This perfect world can be created with Application Containers and Oracle APEX. In this session you will learn the basics of Application Containers, how data is shared and separated in each container and how a new version is rolled out.

Kosilo

OCI Vision and Oracle Analytics: Just like a Box of Chocolates

OCI Vision is a self-service AI Service, which applies computer vision to analyze image-based content. It allows developers easily integrate pre-trained models into their applications with APIs or custom training models to meet their specific use cases. In our example, I will explore how to use OCI Vision service to create a custom-built model to detect pneumonia infected lungs on a fresh dataset of X-ray images. In this example, I am using rather large dataset of X-ray images found on Kaggle.com. Oracle Analytics is then used as a front-end tool to use the model to classify new images for pneumonia.

What to expect to see in this presentation? In the first place, we will demonstrate and explore the whole process from “plain” X-ray image to identifying pneumonia infected lungs using OCI services:

Gathering and storing images to OCI Object Storage. Labeling images depending on whether they represent normal or pneumonia infected lungs using Data Labeling service. Building and training an image classification model using OCI Vision. Registering an OCI Vision model with Oracle Analytics. Applying a model in Oracle Analytics’ Data Flows. Visualizing everything at the end by using Oracle Analytics Data Visualization. Why is this relevant?

Firstly, it shows the flexibility and usability of the OCI ecosystem, specifically Data Lakehouse services. Secondly, the whole process (with exception of data labeling which is done programmatically) is codeless, with not too many steps in the process, and the process itself is really very simple to use. This implies possibilities which can be explored by much wider range of users comparing to the situation today, where all depends on skilled developers and data scientists. And the bottom line, this can have very positive impact on business.

Odmor - kava

Odmor - kava

Odmor - kava

Oracle Cloud Infrastructure - novosti

Oracle Cloud infrastructure (OCI) oziroma poljudno imenovan "Oracle Cloud" je eden od 4 največjih ponudnikov oblačnih storitev. OCI ni statičen, ampak se neprestano posodablja - prihajajo nove storitve, obstoječe storitve pridobivajo nove funkcionalnosti, lažjo uporabo, laže upravljanje, večjo povezljivost. Posebej je potrebno omeniti Oracle Cloud@customer ponudbo, ki omogoča izvajanje Cloud storitve na lokaciji pri stranki oziroma na zemlji (ali pod zemljo v kleti organizacije). Prednosti Cloud @cutomer so velike in so najbolje iz obeh svetov - avtomatizacija in elastičnost oblačnih storitev na en strani in dobre in hitre povezave s podatki v Sloveniji po drugi strani.

Play against vulnerability with APEX

Do you know that half of the cyber-attacks are never detected? Can you tell if your APEX application is secured? We CAN!

Do you know why? Because we included in the development lifecycle a process to check vulnerabilities and verify the security of our APEX application. This process can and should be included into your development process as well.

In this session we’ll discuss the type of security risks an APEX application can expose, and how our team is doing the evaluation of these risks.

You will find out about the free tools, paid tools and do-it-yourself tools you can use to verify the vulnerability of the system during the development process or gather information on a running system to identify intruders.

The session is inspired by security-check processes we are using in a few projects. It covers technical details as well as project planning, and it is addressed to developers, team leaders, and project managers.

Real life ORDS; REST in pieces

ORDS plays an important role in the APEX architecture. Next to the database and the browser it is a key component to run any APEX application. But on top of "just" running your APEX application, it also opens up the possibilities of using all kind of RESTful services and features to enhance your application with data that comes from or is send to other sources. This session will cover a number of examples that we created in order to build the application landscape we have today.

Stop editing code in Production database - a journey from 90's to CICD

Source control in databases is a difficult problem. There are tools like Liquibase or Flyway but none of those is fully addressing all challenges of applying changes to databases. This presentation is based on real life implementation and shows a story of a company moving from direct PL/SQL code edit on production server to CICD pipeline.

List of the typical challenges covered in the presentation: - how to design a source control repository, - how to keep a DDL changes, - code merges, - continuous deployment without production outages - rollback - pipeline implementations

Presentation will finish with lesson learned and potential process and tools improvements including Oracle Cloud DevOps tools.