Subrat's Technical Blog

Hi all, Some people were asking me on how to study for 1z0-1088-20! The test focus is on how to move Apps to OCI: Databases WebLogic Applications E-business Suite JD Edwards PeopleSoft  Siebel Hyperion You can find the material here: https://www.oracle.com/cloud/iaas/training/level-50.html https://www.oracle.com/cloud/iaas/training/foundation.html https://www.oracle.com/cloud/iaas/training/advanced.html And here: https://learn.oracle.com/ols/learning-path/become-oci-enterprise-workloads-associate/35644/78020 Official Documentation: https://docs.cloud.oracle.com/en-us/iaas/Content/home.htm User guide: https://docs.cloud.oracle.com/en-us/iaas/pdf/ug/OCI_User_Guide.pdf These videos and PDFs are good to understand the test: Don't forget to read the Study Guide: https://learn.oracle.com/ols/module/exam-preparation-guide-oci-2020-enterprise-workloads-associate/35644/78021 You can find some example of questions here: https://learn.oracle.com/ols/module/practice-exam-for-oracle-cloud-infra...

Top Questions for Getting Started with Docker Does Docker run on Windows? Yes. Docker is available for Windows, MacOS and Linux. Here are the download links: Docker Desktop for Windows Docker Desktop for Mac Linux What is the difference between Virtual Machines (VM) and Containers? This is a great question and I get this one a lot. The simplest way I can explain the differences between Virtual Machines and Containers is that a VM virtualizes the hardware and a Container “virtualizes” the OS.  If you take a look at the image above, you can see that there are multiple Operating Systems running when using Virtual Machine technology. Which produces a huge difference in start up times and various other constraints and overhead when installing and maintaining a full blow operating system. Also, with VMs, you can run different flavors of operating systems. For example, I can run Windows 10 and a Linux distribution on the same hardware at the same time. Now let’s take a look at the image f...

Hi all, The focus for this test is day-to-day activities, you need to know the commands/syntax and not only concepts. Of course, concepts are very important to understand the questions. What you need to focus on? Oci-cli Terraform Policies MQL Quotas What and how you can move Cross-region Budgets and Alerts What is related to Compartments and what is related to the Tenancy Upload and Download files using the cli and the console Tags NVMe - Performance and how to protect Object Storage life cycle VPNs You can find everything here: https://www.oracle.com/cloud/iaas/training/foundation.html And here: https://learn.oracle.com/ols/course/oracle-cloud-infrastructure-operations-associate-workshop/35644/60996 But I recommend you to have a free account and test everything you can! These videos and PDFs are good to understand the test: Exam Preparation: OCI Cloud Operations Associate    https://objectstorage.us-ashburn-1.oraclecloud.com/n/ociobtnas/b/webinars/o/webinars-dynamic.html You...

This is the first in a multi-part series on building Docker images for Oracle 19c. In this first part I show how to create a Dockerfile to build images that use the Oracle 19c RPM instead of the “traditional” method where the Oracle Home is unzipped into a target directory. I’ll also demonstrate how to apply a Release Update (RU) to the Oracle Home during the image build to produce a native Oracle 19.7 or 19.8 database. In the next installment I cover some of the other unique requirements for running Docker images that use the RPM-based installation. In the third part I describe a method to merge multiple images together, creating containers with a low-version Oracle home and database (11g, 12c, 18c) running alongside a preconfigured 19c database home, ready for testing and practicing upgrades to Oracle 19c! Building images that take advantage of the RPM installer requires a departure from the builds offered in Oracle’s Docker repository . Installing and creating a database is handled ...

A complete tutorial on deploying an EKS cluster with Terraform and running a PySpark job using the Spark Operator Bogdan Cojocar Follow Jul 16  · 6 min read Photo by Samson on Unsplash.com In this tutorial, we will focus on deploying a Spark application on AWS EKS end to end. We will do the following steps: deploy an EKS cluster inside a custom VPC in AWS install the Spark Operator run a simple PySpark application TL;DR:  Github code repo Step 1: Deploying the Kubernetes infrastructure To deploy Kubernetes on AWS we will need at a minimum to deploy : VPC, subnets and security groups  to take care of the networking in the cluster EKS control plane  to basically run the Kubernetes services such as  etcd  and  Kubernetes API EKS worker nodes  to be able to run pods and more specific for our case spark jobs Let’s dive into the Terraform code. First, let’s see the VPC: module "vpc" { source = "terraform-aws-modules/vpc/aws" version = "2....