Break New Ground

Oracle APEX, is a low-code development platform that enables you to build scalable, secure enterprise apps, with world-class features. The Build Applications Faster with Low-Code event on December 16th / 17th, 2020 is a great opportunity for you to learn about Oracle Application Express (APEX), the low-code way of building applications in minutes with minimal code using just your browser

Oracle APEX, is a low-code development platform that enables you to build scalable, secure enterprise apps, with world-class features. The Build Applications Faster with Low-Code event on December...

Build a persistent shopping list app with JavaScript and Autonomous Database.

Build a persistent shopping list app with JavaScript and Autonomous Database.

The Twelve-Factor App manifesto, created by engineers at Heroku around 2011, contains twelve best practices for building software-as-a-service (SaaS) applications. Although cloud development has evolved since this manifesto came out, the principles still apply to cloud native application development. This post describes how.

The Twelve-Factor App manifesto, created by engineers at Heroku around 2011, contains twelve best practices for building software-as-a-service (SaaS) applications. Although cloud development has...

What's blooming this week? Fifty-four blog posts written by 33 members of the Oracle ACE Program! This batch of blog posts cover APEX, Cloud, SQL and more.

What's blooming this week? Fifty-four blog posts written by 33 members of the Oracle ACE Program! This batch of blog posts cover APEX, Cloud, SQL and more.

To provide an update on the progress Oracle has been making on interoperability and cloud native. 

To provide an update on the progress Oracle has been making on interoperability and cloud native. 

Grab a snack and get comfortable! Eleven members of the Oracle ACE Program shared 40 videos in September-October 2020 with the Oracle community. That should be plenty to have yourself a movie night filled with technical content including Database, APEX, Cloud and more.

Grab a snack and get comfortable! Eleven members of the Oracle ACE Program shared 40 videos in September-October 2020 with the Oracle community. That should be plenty to have yourself a movie...

The Oracle Cloud Infrastructure Load Balancing service distributes traffic from one entry point to multiple servers reachable from your virtual cloud network (VCN). The service provides a load balancer with your choice of a public or private IP address, and provisioned bandwidth. A load balancer improves resource use, facilitates scaling, and helps to ensure high availability. You can configure multiple load balancing policies and application-specific health checks to ensure that the load balancer directs traffic only to healthy instances. The load balancer can reduce your maintenance window by draining traffic from an unhealthy application server before you remove it from service for maintenance.

The Oracle Cloud Infrastructure Load Balancing service distributes traffic from one entry point to multiple servers reachable from your virtual cloud network (VCN). The service provides a...

Just like a flowing river, members of the Oracle ACE Program continue to share their expertise with the community. This week, 33 Oracle ACEs wrote 55 blog posts on APEX, Database, Cloud, and more! So go ahead, take a virtual stroll through these insightful blog posts. 

Just like a flowing river, members of the Oracle ACE Program continue to share their expertise with the community. This week, 33 Oracle ACEs wrote 55 blog posts on APEX, Database, Cloud, and more! So...

In this post, you learn about instance pools, instance configurations, and autoscaling configurations for Oracle Cloud Infrastructure (OCI) compute instances. You can use instance pools to create multiple compute instances from the same configuration and manage them as a group. With an autoscaling configuration, you can automatically adjust the number of compute instances in an instance pool. An autoscaling configuration helps you provide a consistent performance when demand is high and reduce your costs when demand is low.

In this post, you learn about instance pools, instance configurations, and autoscaling configurations for Oracle Cloud Infrastructure (OCI) compute instances. You can use instance pools to create...

The below 11 members of the Oracle ACE Program have written 14 articles in August-October 2020. These articles serve as a reminder of the Oracle ACEs' commitment to sharing their knowledge and guidance with the community.

The below 11 members of the Oracle ACE Program have written 14 articles in August-October 2020. These articles serve as a reminder of the Oracle ACEs' commitment to sharing their knowledge...

The Developer Adoption team has a program to help enterprises move to cloud native. If your enterprise needs assistance in jump starting the move then the Developer Lighthouse Program is the program for you.

The Developer Adoption team has a program to help enterprises move to cloud native. If your enterprise needs assistance in jump starting the move then the Developer Lighthouse Program is the program...

The road to the Oracle ACE Program reflects a commitment to sharing knowledge and expertise with the community. This week we are featuring 42 blog posts on APEX, Database, SQL, and more written by 27 Oracle ACEs.

The road to the Oracle ACE Program reflects a commitment to sharing knowledge and expertise with the community. This week we are featuring 42 blog posts on APEX, Database, SQL, and more written by 27...

The Oracle ACE Program continues to grow! We have welcomed 13 new members in the month of October. The following people have been recognized and awarded for their technical contributions in the community. Congratulations to the new members of the Oracle ACE Program!

The Oracle ACE Program continues to grow! We have welcomed 13 new members in the month of October. The following people have been recognized and awarded for their technical contributions in the...

Oracle Cloud Infrastructure (OCI) uses images to create compute instances. You specify which image to use when you create an instance. You can also create a custom image of a bare metal instance’s boot disk and use that image to create other instances. These instances include the customizations, configuration, and software that was installed when you created the image. Custom images do not include data from any block volumes that are attached to the original instance. Use cases for custom image would be: Creating a golden base image to spin instances from Backing up the base OS image in case of Disaster Cross Tenancy Base Image migration Cross Region Base Image migration

Oracle Cloud Infrastructure (OCI) uses images to create compute instances. You specify which image to use when you create an instance. You can also create a custom image of a bare metal instance’s...

Inspiration can come from anywhere. This week, we're drawing inspiration from 56 blog posts written by 35 members of the Oracle ACE Program. So find a comfortable seat and enjoy blog posts written on Cloud, Machine Learning, SQL, and more.

Inspiration can come from anywhere. This week, we're drawing inspiration from 56 blog posts written by 35 members of the Oracle ACE Program. So find a comfortable seat and enjoy blog posts written on...

This week, 29 members of the Oracle ACE Program published 39 blog posts on SQL, APEX, Database, and more. The Oracle ACE Program is continuously taken to new heights because of the gracious contributions of its members. 

This week, 29 members of the Oracle ACE Program published 39 blog posts on SQL, APEX, Database, and more. The Oracle ACE Program is continuously taken to new heights because of the...

Oracle ACEs, Groundbreaker Ambassadors, and Java Champions are coming together again for the Oracle Groundbreakers APAC Tour going on now until October 30th. The Groundbreakers APAC Tour has been organized by the APACOUC for the past 9 years with the goal of sharing knowledge and supporting the growth of Oracle User Groups and Java Communities in the region. The APAC Groundbreakers Tour will be virtual this year with presentations on Cloud, Database, Java, Hands-On Labs and more.

Oracle ACEs, Groundbreaker Ambassadors, and Java Champions are coming together again for the Oracle Groundbreakers APAC Tour going on now until October 30th. The Groundbreakers APAC Tour has...

Podcast #386: AI and Machine Learning the Good the Bad and the Future

Podcast #386: AI and Machine Learning the Good the Bad and the Future

This blog explains the use case of calling UCM SOAP API from Oracle Function and download an attachment from UCM server.

This blog explains the use case of calling UCM SOAP API from Oracle Function and download an attachment from UCM server.

MyBatis has a long standing history of enabling developers to connect to databases using a lightweight approach on top of JDBC. This post shows how to use it to connect to an Oracle Autonomous Database.

MyBatis has a long standing history of enabling developers to connect to databases using a lightweight approach on top of JDBC. This post shows how to use it to connect to an Oracle...

n this post, you learn how to control access to the Object Storage buckets by using Identity and Access Management (IAM) policies.

n this post, you learn how to control access to the Object Storage buckets by using Identity and Access Management (IAM) policies.

The Oracle Cloud Infrastructure Compute service provides bare metal and virtual machine (VM) instances, which lets you deploy any size server that you need from a small VM with a single core to a robust bare metal server with many cores and a large amount of RAM.

The Oracle Cloud Infrastructure Compute service provides bare metal and virtual machine (VM) instances, which lets you deploy any size server that you need from a small VM with a single core to a...

As time goes by, the advocates of the Oracle ACE Program continue to elevate and share their technical content. This week, 28 members wrote 37 blog posts on Cloud, Database, Security, and more.

As time goes by, the advocates of the Oracle ACE Program continue to elevate and share their technical content. This week, 28 members wrote 37 blog posts on Cloud, Database, Security, and more.

Jdbi is a lightweight data access/persistence library on top of JDBC. This post describes how to set it up to interact with Oracle Autonomous Database.

Jdbi is a lightweight data access/persistence library on top of JDBC. This post describes how to set it up to interact with Oracle Autonomous Database.

As the seasons change, one thing remains the same - our advocates' commitment to sharing their expertise with the community. The Oracle Groundbreakers EMEA Tour 2020 has been underway for a week now and will commence on October 15, 2020. Members of the Oracle ACE Program along with Groundbreaker Ambassadors and Java Champions are among the many presenters during the event. This year's theme is "Let's go back to basics," giving the opportunity to learn, connect, and build the community in a virtual capacity. Sessions include Cloud (OCI, Cloud-Native, Cloud Apps), Database (DB Development, DBA, APEX), Analytics/Data Science, Java, Developer Tools and Frameworks, and Hands-On Labs. So make sure to mark your calendars, set your alarms, and enjoy the last week of sessions by Oracle ACEs, Groundbreaker Ambassadors, Java Champions, and more!

As the seasons change, one thing remains the same - our advocates' commitment to sharing their expertise with the community. The Oracle Groundbreakers EMEA Tour 2020 has been underway for a week now...

In this post, you’ll learn about the Oracle Cloud Infrastructure Object Storage service, how to create an object storage bucket, and how to upload a simple HTML page to it.

In this post, you’ll learn about the Oracle Cloud Infrastructure Object Storage service, how to create an object storage bucket, and how to upload a simple HTML page to it.

Twenty-four members of the Oracle ACE Program have written 37 blog posts this week. Please take a moment, read through their technical content, and reflect on a wide range of topics including Database, SQL, Cloud and more.

Twenty-four members of the Oracle ACE Program have written 37 blog posts this week. Please take a moment, read through their technical content, and reflect on a wide range of topics including...

In this post, we'll look at the new features in Micronaut 2.1 including some exciting framework enhancement for the Oracle Cloud.

In this post, we'll look at the new features in Micronaut 2.1 including some exciting framework enhancement for the Oracle Cloud.

In this post, we'll look at a project that uses a water flow sensor, and a microcontroller to persist data to Autonomous DB via a Node backend running in the Oracle Cloud. This entire project can be deployed with "always free" resources.

In this post, we'll look at a project that uses a water flow sensor, and a microcontroller to persist data to Autonomous DB via a Node backend running in the Oracle Cloud. This entire project can be...

Getting Started to Integrating Oracle Functions and Oracle Streaming Service

Getting Started to Integrating Oracle Functions and Oracle Streaming Service

In the month of September, we've welcomed 7 new members from around the world to the Oracle ACE Program! They have been chosen for their exceptional contributions in the Oracle community. These latest additions to the program have continuously shared their technical skills and expertise through blog posts, presentations, videos and more. Congratulations to the newest members to the Oracle ACE Program! 

In the month of September, we've welcomed 7 new members from around the world to the Oracle ACE Program! They have been chosen for their exceptional contributions in the Oracle community. These latest...

Why is modern development so complex? Is that complexity inherent, or is the complexity a byproduct of the development tools and architectures that are currently popular?

Why is modern development so complex? Is that complexity inherent, or is the complexity a byproduct of the development tools and architectures that are currently popular?

“It’s a Wrap”: Oracle Groundbreakers Tour 2020 Latin America

“It’s a Wrap”: Oracle Groundbreakers Tour 2020 Latin America

The below 27 blog posts written by 24 members of the Oracle ACE Program are jam-packed with technical knowledge. Have a read and harvest some of their expertise ranging from Database to SQL and more.

The below 27 blog posts written by 24 members of the Oracle ACE Program are jam-packed with technical knowledge. Have a read and harvest some of their expertise ranging from Database to SQL and more.

Introduction to Machine Learning and Neural Networks for Java Developers

Introduction to Machine Learning and Neural Networks for Java Developers

The month of August was filled with great video content brought to you by 26 Oracle ACE Program members. So grab a snack and enjoy videos on Analytics, Machine Learning, APEX, Autonomous Database, and more!

The month of August was filled with great video content brought to you by 26 Oracle ACE Program members. So grab a snack and enjoy videos on Analytics, Machine Learning, APEX, Autonomous Database, and...

Oracle Visual Builder Studio 20.10 offers many new features for both visual app developers and agile/DevOps teams. See what's new...

Oracle Visual Builder Studio 20.10 offers many new features for both visual app developers and agile/DevOps teams. See what's new...

An overview of Oracle Cloud Infrastructure Networking components and typical scenarios for using a virtual cloud network (VCN).

An overview of Oracle Cloud Infrastructure Networking components and typical scenarios for using a virtual cloud network (VCN).

Instance principals is a capability in Oracle Cloud Infrastructure Identity and Access Management (IAM) that lets you make service calls from an instance. With instance principals, you don’t need to configure user credentials on the services running on your compute instances or rotate the credentials.

Instance principals is a capability in Oracle Cloud Infrastructure Identity and Access Management (IAM) that lets you make service calls from an instance. With instance principals, you don’t need...

This post provides details about the Identity and Access Management (IAM) and IAM policies, and introduces the concepts of users, groups, and dynamic groups.

This post provides details about the Identity and Access Management (IAM) and IAM policies, and introduces the concepts of users, groups, and dynamic groups.

This blog post introduces you to the key concepts of Oracle Cloud Infrastructure (OCI). These concepts and terms are used throughout the Developer Resource Center and are the basis of the OCI and cloud resources that we’ll talk about in later posts.

This blog post introduces you to the key concepts of Oracle Cloud Infrastructure (OCI). These concepts and terms are used throughout the Developer Resource Center and are the basis of the OCI...

We're shining a light on 55 blog posts published by 35 Oracle ACE Program members. This week's content includes APEX, Cloud, Database and more. Knowledge is growth and it's only a click away!

We're shining a light on 55 blog posts published by 35 Oracle ACE Program members. This week's content includes APEX, Cloud, Database and more. Knowledge is growth and it's only a click away!

These 8 recently published technical books featured below were written by 4 members of the Oracle ACE Program. There are pages and pages of FDMEE, Cloud, and Database knowledge waiting to be read. So ahead, have a read and be sure to add these titles to your personal library! 

These 8 recently published technical books featured below were written by 4 members of the Oracle ACE Program. There are pages and pages of FDMEE, Cloud, and Database knowledge waiting to be read. So...

A conversation with Avi Miller, Sr. Product Manager, about the Linux and Open Source.

A conversation with Avi Miller, Sr. Product Manager, about the Linux and Open Source.

Looking to expand your knowledge and grow? Read through the below 29 technical blog posts by 23 Oracle ACE Program members. You're sure to find a new perspective!

Looking to expand your knowledge and grow? Read through the below 29 technical blog posts by 23 Oracle ACE Program members. You're sure to find a new perspective!

The 46 blog posts written by 25 Oracle ACE Program members below are ripe for the reading! Take your pick of everything from Database, Cloud, APEX, and more.

The 46 blog posts written by 25 Oracle ACE Program members below are ripe for the reading! Take your pick of everything from Database, Cloud, APEX, and more.

In this post, we'll talk about a new module to provide powerful integrations between the Micronaut framework and Oracle Cloud.

In this post, we'll talk about a new module to provide powerful integrations between the Micronaut framework and Oracle Cloud.

How to use Visual Studio IDE with OCI SDK for .NET when accessing Oracle Cloud. This blog will help new and old developers to get a feel of Oracle Cloud with our newly released SDK for .NET with one of the most popular IDEs, Visual Studio

How to use Visual Studio IDE with OCI SDK for .NET when accessing Oracle Cloud. This blog will help new and old developers to get a feel of Oracle Cloud with our newly released SDK for .NET with...

In this blog, I demonstrate how to use Visual Studio Code and Visual Studio Codespaces with Oracle Cloud software development kit (SDK) for .NET to build an application that can access Oracle Cloud. I cover steps for onboarding to Oracle Cloud and general set up required to use Oracle Cloud Infrastructure Developer Tools with some more specifics for .NET SDK, and how to run and debug this application in VS Code or VS Codespaces.

In this blog, I demonstrate how to use Visual Studio Code and Visual Studio Codespaces with Oracle Cloud software development kit (SDK) for .NET to build an application that can access Oracle Cloud. I...

There's beauty in the details and 27 of our Oracle ACEs have plenty to share! Enjoy a nice blend of Database, Cloud, SQL and more in these 41 blog posts.

There's beauty in the details and 27 of our Oracle ACEs have plenty to share! Enjoy a nice blend of Database, Cloud, SQL and more in these 41 blog posts.

Top Ten 60 Second Developer Stories

Top Ten 60 Second Developer Stories

Announcement of source code availability for project Verrazzano on GitHub.

Announcement of source code availability for project Verrazzano on GitHub.

Congratulations to the latest additions to the Oracle ACE Program! The following 13 people have been recognized and awarded for their expertise and technical contributions in the Oracle community. Learn more about these featured community leaders and follow along as they continue to share their knowledge.

Congratulations to the latest additions to the Oracle ACE Program! The following 13 people have been recognized and awarded for their expertise and technical contributions in the Oracle...

Did you know that instead of creating a bunch of code you can use Kafka Connect and just with a settings file do a lot of connections? You can connect with JDBC, HDFS, Object Store, and many others in a simple way.

Did you know that instead of creating a bunch of code you can use Kafka Connect and just with a settings file do a lot of connections? You can connect with JDBC, HDFS, Object Store, and many others in...

Members of the Oracle ACE Program continue to take their contributions to new heights. This week, 22 members are bringing you 39 blog posts on Database, SQL, OCI, and more!

Members of the Oracle ACE Program continue to take their contributions to new heights. This week, 22 members are bringing you 39 blog posts on Database, SQL, OCI, and more!

Grab yourself a nice cup of coffee and enjoy these 11 videos featuring 10 members of the Oracle ACE Program. What's brewing? Database, SQL, and more!

Grab yourself a nice cup of coffee and enjoy these 11 videos featuring 10 members of the Oracle ACE Program. What's brewing? Database, SQL, and more!

This is another introduction post where I show some initial examples and codes for you being able to start playing with Oracle Streaming Service OSS.

This is another introduction post where I show some initial examples and codes for you being able to start playing with Oracle Streaming Service OSS.

In this interview former Groundbreakers Podcast host Bob Rhubart, now retired, shares how he moved into tech, what inspires him, and share highlights from his career at Oracle.

In this interview former Groundbreakers Podcast host Bob Rhubart, now retired, shares how he moved into tech, what inspires him, and share highlights from his career at Oracle.

Thirty members of the Oracle ACE Program are making a splash with 41 blog posts between July 26 and August 1. Get comfortable and have a read!

Thirty members of the Oracle ACE Program are making a splash with 41 blog posts between July 26 and August 1. Get comfortable and have a read!

In this post, we'll look at calling REST APIs from your SQL scripts. You might be surprised what is possible!

In this post, we'll look at calling REST APIs from your SQL scripts. You might be surprised what is possible!

The Maven Enforcer plugin is a valuable addition to your developer toolbox. It can help you detect problems early on and during the build process.

The Maven Enforcer plugin is a valuable addition to your developer toolbox. It can help you detect problems early on and during the build process.

In this post, we'll create our first Autonomous JSON Database instance, our first JSON collection and some basic CRUD operations all without leaving the browser.

In this post, we'll create our first Autonomous JSON Database instance, our first JSON collection and some basic CRUD operations all without leaving the browser.

Oracle announced the availability of Autonomous JSON Database—a new cloud service built for JSON-centric developers.

Oracle announced the availability of Autonomous JSON Database—a new cloud service built for JSON-centric developers.

The members of the Oracle ACE Program continuously and graciously contribute to the Oracle community. The month of July was no different. The 7 Oracle ACE Program members listed below have written and published 8 articles this past month. Have a read, knowledge is on the horizon! 

The members of the Oracle ACE Program continuously and graciously contribute to the Oracle community. The month of July was no different. The 7 Oracle ACE Program members listed below have written and...

Overcoming the challenges of microservices complexity with the converged database approach.

Overcoming the challenges of microservices complexity with the converged database approach.

In this post, we'll see how to use instance and resource principal authentication with the OCI SDK for TypeScript & JavaScript.

In this post, we'll see how to use instance and resource principal authentication with the OCI SDK for TypeScript & JavaScript.

Shift your focus to 38 blog posts written by 26 Oracle ACE Program members. A fresh, new perspective is just one click away.

Shift your focus to 38 blog posts written by 26 Oracle ACE Program members. A fresh, new perspective is just one click away.

Groovy and jbang may be used to author self-contained scripts that rely on JDBC to connect to databases.

Groovy and jbang may be used to author self-contained scripts that rely on JDBC to connect to databases.

An opportunity to harness the power of Oracle Database is coming up on August 13th and August 18th for the first event of the new Oracle Developer Live virtual series. The event will consist of technical sessions, hands-on labs, demos, panels, and live Q&A with experts.

An opportunity to harness the power of Oracle Database is coming up on August 13th and August 18th for the first event of the new Oracle Developer Live virtual series. The event will consist...

Connecting to an Oracle Autonomous Database instance via JDBC requires just a couple of steps which will be described in this post.

Connecting to an Oracle Autonomous Database instance via JDBC requires just a couple of steps which will be described in this post.

An overview of the Oracle Groundbreakers Tour 2020 Latin America

An overview of the Oracle Groundbreakers Tour 2020 Latin America

This week's technical produce consists of 39 blog posts written by 27 Oracle ACE Program members. Have a read for some food for thought!

This week's technical produce consists of 39 blog posts written by 27 Oracle ACE Program members. Have a read for some food for thought!

Oracle Cloud Infrastructure SDK for .NET

Oracle Cloud Infrastructure SDK for .NET

The 22 people featured in this post have proven the sky is the limit. They have been awarded for their soaring technical contributions in the Oracle community. From blog posts to podcasts to presentations, they have graciously shared their knowledge and skills. Congratulations to the new members of the Oracle ACE Program!

The 22 people featured in this post have proven the sky is the limit. They have been awarded for their soaring technical contributions in the Oracle community. From blog posts to podcasts to...

Stop and smell the flowers. Thirty-three fresh blog posts written by 22 Oracle ACE Program members are now in bloom!

Stop and smell the flowers. Thirty-three fresh blog posts written by 22 Oracle ACE Program members are now in bloom!

Gather around your screen to watch this international, multilingual selection of 16 videos from 14 Oracle ACE program members.

Gather around your screen to watch this international, multilingual selection of 16 videos from 14 Oracle ACE program members.

This post is a comprehensive, all-in-one guide for the various ways to invoke your cloud-based serverless Oracle Functions.

This post is a comprehensive, all-in-one guide for the various ways to invoke your cloud-based serverless Oracle Functions.

Low code or cloud native? Which is right for your project? A panel of pro developers gets beyond the hype to compare and contrast the two approaches.

Low code or cloud native? Which is right for your project? A panel of pro developers gets beyond the hype to compare and contrast the two approaches.

Getting Started With Oracle Streaming Service OSS

Getting Started With Oracle Streaming Service OSS

Fetch some fresh insight from these recent blog posts from members of the Oracle ACE program.

Fetch some fresh insight from these recent blog posts from members of the Oracle ACE program.

Announcing the availability of APEX 20.1 on Oracle Autonomous Database

Announcing the availability of APEX 20.1 on Oracle Autonomous Database

As a best practice your Git repository shouldn't include large binary files - since you usually don't actually manage the content of these files in a similar way to source code files. But sometime these files are part of your code base, and you would like to track them along with the rest of your code. GitLFS - an open source project - helps in doing this in an efficient way. The latest version of Oracle Visual Builder Studio added support for using GitLFS. Git Large File Storage (LFS) replaces large files such as audio samples, videos, datasets, and graphics with text pointers inside Git, while storing the file contents on a remote server. Visual Builder Studio will store the files in your Oracle Cloud Object Storage. In the demo below you can see how easy it is to use GitLFS with your free Git repositories in Visual Builder Studio. After you download and install GitLFS on your client, you can add it to a specific Git repo by issuing a "git lfs install" in the directory into which you cloned your repository. Then indicate which files to track using commands such as "git lfs track *.bin". Add the new .gitattributes file to your git transaction, and that's it. From now on, when you add files of the specific type to your git repo - they will be stored outside of your git repo. Here is a quick demo -  For more info see our doc.  

As a best practice your Git repository shouldn't include large binary files - since you usually don't actually manage the content of these files in a similar way to source code files. But...

This post describes the steps required to migrate a Helidon SE application from Apache Maven to Gradle.

This post describes the steps required to migrate a Helidon SE application from Apache Maven to Gradle.

If you find yourself in the middle of a big mess, a little expert advice can help to make sense of the chaos.

If you find yourself in the middle of a big mess, a little expert advice can help to make sense of the chaos.

Nuts-and-bolts technical help. That's exactly what you can expect from members of the Oracle ACE program. Here are 32 recent blog posts from 20 Oracle ACEs that just might help you put it together.

Nuts-and-bolts technical help. That's exactly what you can expect from members of the Oracle ACE program. Here are 32 recent blog posts from 20 Oracle ACEs that just might help you put it together.

In this post, we'll look at how to create a native image for every OS from a single Java codebase by using GraalVM.

In this post, we'll look at how to create a native image for every OS from a single Java codebase by using GraalVM.

Stay home, stay comfortable, and take in sessions from nearly 70 presenters as part of Oracle Groundbreakers LATAM 2020.

Stay home, stay comfortable, and take in sessions from nearly 70 presenters as part of Oracle Groundbreakers LATAM 2020.

What's cool? For some it's a pool on a hot day. For others it's 29 fresh blog posts by 21 members of the Oracle ACE program. Either way, you gotta dive in!

What's cool? For some it's a pool on a hot day. For others it's 29 fresh blog posts by 21 members of the Oracle ACE program. Either way, you gotta dive in!

In the search for a lightweight data mapper in Go I found jmoiron/sqlx. This post describes how you can connect and query Oracle databases with it.

In the search for a lightweight data mapper in Go I found jmoiron/sqlx. This post describes how you can connect and query Oracle databases with it.

Poke your head out long enough to take in this fresh batch of blog posts from members of the Oracle ACE community, all published between June 7th and 13th.

Poke your head out long enough to take in this fresh batch of blog posts from members of the Oracle ACE community, all published between June 7th and 13th.

Most of the projects developed today rely on open source libraries - it is likely that your project does too. While using these libraries accelerates development by relying on proven solution for common needs, it also introduces a potential risk factor. Over time people discover vulnerabilities in many of these libraries. While most of the issues will get fixed in newer versions of the libraries, it is up to the consumer of the library to make sure they are up-to-date on the latest version. It is a hard task to constantly track the libraries you are using and to keep them up to date. For projects that are already in production, and have not kept their libraries updated, this is an even bigger risk opening organization to potential malicious attacks leveraging these known vulnerabilities. Automating a review process of the libraries used in your code against databases of known vulnerability can help you stay one-step ahead of attackers. This is exactly what the Dependency Vulnerability Analyzer in Visual Builder Studio helps you achieve. In the demo below you can see how simple it is to automate the process of reviewing the libraries your code uses, get a report about any known vulnerability in those libraries, and even how fixing your code can be streamlined. The demo specifically uses a project that is managing the libraries used through NPM - and scans those dependencies from the package.json file against several repositories of known vulnerabilities. You can also conduct similar checks for Java projects that leverage Maven and pom files to manage dependencies. Check out the demo, and start implementing these security check for your project today!    

Most of the projects developed today rely on open source libraries - it is likely that your project does too. While using these libraries accelerates development by relying on proven solution for...

Congratulations to the entire roster of members of the 2019/2020 Oracle ACE Program.

Congratulations to the entire roster of members of the 2019/2020 Oracle ACE Program.

The Oracle JDBC drivers give you more options to mix and configure dependencies starting with version 19.7.0.0

The Oracle JDBC drivers give you more options to mix and configure dependencies starting with version 19.7.0.0

In a recent blog post I illustrated how to use the OCI Command Line Interface (CLI) in shell scripts. While the OCI CLI is comprehensive and powerful, it may not be the best solution when you need to handle a lot of data in shell scripts. In such cases using a programming language such as Python and the Oracle Cloud Infrastructure Python SDK makes more sense. Data manipulation is much easier, and the API is —as expected— more complex. In an attempt to demystify the use of the OCI Python SDK, I have re-written and improved the sample oci-provision.sh shell script in Python. This sample project is named oci-compute and is published on GitHub. This blog post highlights the key concepts of the OCI Python SDK, and together with the oci-compute sample code it should help you to get started easily. About oci-compute The oci-compute tool does everything oci-provision.sh does; better, faster and with some additional capabilities: List available Platform, Custom and Marketplace images Create Compute Instances from a Platform, Custom or Marketplace image A cloud-init file can be specified to run custom scripts during instance configuration List, start, stop and terminate Compute Instances Command line syntax and parameters naming are similar to the OCI CLI tool. See the project README for more information on usage and configuration. I am using this tool on a daily basis to easily manage OCI Compute instances from the command line. OCI Python SDK installation At the time of this writing, the SDK supports Python version 3.5 or 3.6 and can be easily installed using pip, preferably in a Python virtual environment. Installation and required dependencies are described in detail in the documentation. oci-compute installation The oci-compute utility is distributed as a Python package. The setup.py file lists the SDK as dependency; installing the tool will automatically pull the SDK if not already installed. See the README file for detailed installation steps, but in short it is as simple as creating a virtual environment and running: $ pip3 install . The package is split in two main parts: cli.py: handles the command line parsing using the Click package. It defines all the commands, sub-commands and their parameters; instantiate the OciCompute class and invoke its methods. oci_compute.py: defines the OciCompute class which interacts with the OCI SDK. This is the most interesting part of this project. OCI SDK Key concepts This section describes the key concepts used by the OCI SDK. Configuration The first step for using the OCI SDK is to create a configuration dictionary (Python dict). While you can build it manually, you will typically use the oci.config.from_file API call to load it from a configuration file. The default configuration file is ~/.oci/config. It is worth noticing that the OCI CLI uses the same configuration file and provides a command to create it: $ oci setup config For oci-compute, the configuration file is loaded during the class initialization: self._config = oci.config.from_file(config_file, profile) API Service Clients The OCI API is organized in Services, and for each Service you will have to instantiate a Service Client. For example, our oci-compute package uses the following Services: Compute Service (part of Core Services): to manage the Compute Services (provision and manage compute hosts). Virtual Network Service (part of Core Services): to manage the Networking Components (virtual cloud network, Subnet, …) Identity Service: to manage users, groups, compartments, and policies. Marketplace Service: to manage applications in Oracle Cloud Infrastructure Marketplace We instantiate the Service Clients in the class initialization: # Instantiate clients self._compute_client = oci.core.ComputeClient(self._config) self._identity_client = oci.identity.IdentityClient(self._config) self._virtual_network_client = oci.core.VirtualNetworkClient(self._config) self._marketplace_client = oci.marketplace.MarketplaceClient(self._config) Models Models allows you to create objects needed by the API calls. Example: to use an image from the Marketplace, we need to subscribe to the Application Catalog. This is done with the ComputeClient create_app_catalog_subscription method. This method needs an CreateAppCatalogSubscriptionDetails object as parameter. We will use the corresponding model to create such object: oci.core.models.CreateAppCatalogSubscriptionDetails. In oci-compute: app_catalog_subscription_detail = oci.core.models.CreateAppCatalogSubscriptionDetails( compartment_id=compartment_id, listing_id=app_catalog_listing_agreements.listing_id, listing_resource_version=app_catalog_listing_agreements.listing_resource_version, oracle_terms_of_use_link=app_catalog_listing_agreements.oracle_terms_of_use_link, eula_link=app_catalog_listing_agreements.eula_link, signature=app_catalog_listing_agreements.signature, time_retrieved=app_catalog_listing_agreements.time_retrieved ) self._compute_client.create_app_catalog_subscription(app_catalog_subscription_detail).data Pagination All list operations are paginated; that is: they will return a single page of data and you will need to call the method again to get additional pages. The pagination module allows you, amongst other, to retrieve all data in a single API call. Example: to list the available images in a compartment we could do: response = self._compute_client.list_images(compartment_id) which will only return the first page of data. To get get all images at once we will do instead: response = oci.pagination.list_call_get_all_results(self._compute_client.list_images, compartment_id) The first parameter to list_call_get_all_results is the paginated list method, subsequent parameters are the ones of the list method itself. Waiters and Composite operations To wait for an operation to complete (e.g.: wait until an instance is started), you can use the wait_until function. Alternatively, there are convenience classes in the SDK which will perform an action on a resource and wait for it to enter a particular state: the CompositeOperation classes. Example: start an instance and wait until it is started. The following code snippet shows how to start an instance and wait until it is up and running: compute_client_composite_operations = oci.core.ComputeClientCompositeOperations(self._compute_client) compute_client_composite_operations.instance_action_and_wait_for_state( instance_id=instance_id, action='START', wait_for_states=[oci.core.models.Instance.LIFECYCLE_STATE_RUNNING]) Error handling A complete list of exceptions raised by the SDK is available in the exception handling section of the documentation. In short, if your API calls are valid (correct parameters, …) the main exception you should care about is the ServiceError one which is raised when a service returns an error response; that is: a non-2xx HTTP status. For the sake of simplicity and clarity in the sample code, oci-compute does not capture most exceptions. Service Errors will result in a Python stack traceback. A simple piece of code where we have to consider the Service Error exception is illustrated here: for vnic_attachment in vnic_attachments: try: vnic = self._virtual_network_client.get_vnic(vnic_attachment.vnic_id).data except oci.exceptions.ServiceError: vnic = None if vnic and vnic.is_primary: break Putting it all together The oci-compute sample code should be self explanatory, but let’s walk through what happens when e.g. oci-compute provision platform --operating-system "Oracle Linux" --operating-system-version 7.8 --display-name ol78 is invoked. First of all, the CLI parser will instantiate an OciCompute object. This is done once at the top level, for any oci-compute command: ctx.obj['oci'] = OciCompute(config_file=config_file, profile=profile, verbose=verbose The OciCompute class initialization will: Load the OCI configuration from file Instantiate the Service Clients The Click package will then invoke provision_platform function which in turn will call the OciCompute.provision_platform method. We use the oci.core.ComputeClient.list_images to retrieve the most recent Platform Image matching the given Operating System and its version: images = self._compute_client.list_images( compartment_id, operating_system=operating_system, operating_system_version=operating_system_version, shape=shape, sort_by='TIMECREATED', sort_order='DESC').data if not images: self._echo_error("No image found") return None image = images[0] We then call OciCompute._provision_image for the actual provisioning. This method uses all of the key concepts explained earlier. Pagination is used to retrieve the Availability Domains using the Identity Client list_availability_domains method: availability_domains = oci.pagination.list_call_get_all_results( self._identity_client.list_availability_domains, compartment_id ).data VCN and subnet are retrieved using the Virtual Network Client (list_vcns and list_subnets methods) Metadata is populated with the SSH public key and a cloud-init file if provided: # Metadata with the ssh keys and the cloud-init file metadata = {} with open(ssh_authorized_keys_file) as ssh_authorized_keys: metadata['ssh_authorized_keys'] = ssh_authorized_keys.read() if cloud_init_file: metadata['user_data'] = oci.util.file_content_as_launch_instance_user_data(cloud_init_file) Models are used to create an instance launch details (oci.core.models.InstanceSourceViaImageDetails, oci.core.models.CreateVnicDetails and oci.core.models.LaunchInstanceDetails methods): instance_source_via_image_details = oci.core.models.InstanceSourceViaImageDetails(image_id=image.id) create_vnic_details = oci.core.models.CreateVnicDetails(subnet_id=subnet.id) launch_instance_details = oci.core.models.LaunchInstanceDetails( display_name=display_name, compartment_id=compartment_id, availability_domain=availability_domain.name, shape=shape, metadata=metadata, source_details=instance_source_via_image_details, create_vnic_details=create_vnic_details) Last step is to use the launch_instance_and_wait_for_state Composite Operation to actually provision the instance and wait until it is available: compute_client_composite_operations = oci.core.ComputeClientCompositeOperations(self._compute_client) response = compute_client_composite_operations.launch_instance_and_wait_for_state( launch_instance_details, wait_for_states=[oci.core.models.Instance.LIFECYCLE_STATE_RUNNING], waiter_kwargs={'wait_callback': self._wait_callback}) We use the optional waiter callback to display a simple progress indicator oci-compute demo Short demo of the oci-compute tool: Conclusion In this post, I’ve shown how to use oci-compute to easily provision and manage your OCI Compute Instances from the command line as well as how to create your own Python scripts using the Oracle Cloud Infrastructure Python SDK.

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