Michael Mikhailidi

OCI

How Oracle Cloud helps you save on Oracle Cloud

The recent Ahmed's post on OCI client installation gave me an idea to post this piece. My Oracle Cloud trial has ended, and I have no other option but to be more budget aware. The most apparent recipe is quite similar to the basic household rule: "Turn the lights off when you leave the room."

Oracle Apex

Off-the-map Apex

From time to time, you need good old Oracle software. And the first challenge you face is to find the software binaries.

Ansible

Unsafe writes - why you need it.

As a former Oracle DBA, I'm totally against anything marked as "unsafe." Today I have learned why RedHat Ansible has unsafe_writes clause for some commands. Here is a real-life

Ansible

I want to be a ...

I'm working on the small project which touches multiple cloud-based hosts across multiple providers. And this is a good chance to refresh your knowledge on how to handle various connections

OHS

Graceful restart for Oracle HTTP Server 11g

From time to time, you need to update configuration HTTP server configuration. but OHS 11g offers only full start and stops. Read how to do it gracefully.

Oracle

Always free ... to go

There were a lot of talks about how the Oracle's "NextGen" Cloud is better than all the other public cloud providers and how Oracle stands out among all the other vendors with always free offerings.

Quarkus

Easy Fix For Quarkus 1.2.0 Native Build

The new Quarkus release has just arrived and I decided to refresh my project to see how it works with GraalVM on JDK 11. Well, the native build failed with an indistinct exception.

Ansible

Ansible NOVA meetup

If you live in metro DC area and interesting in RedHat Ansible come and join us to learn how you can use this marvelous automation tool to manage Oracle Fusion Middleware environments. All details could be found on the event page at https://www.meetup.com/Ansible-NOVA/events/267997275.

OpenShift

NATCAP OUG Meetup

If you live in the metro DC area and interesting in cutting end technologies come and join us and learn from the first hands. I'm going to talk about containers and virtualization. At the end of the presentation, I'll show you ho you can have your very own RedHat OpenShift 4 on your laptop.

Containers

RedHat OpenShift and private repositories

For a while, I play around with RedHat CodeReady Containers and one thing annoyed me most - access to private repositories. My pet projects are GitLab and I'm not ready to expose them as public ones. So, whenever I create an application, the first

Containers

RedHat CodeReady Containers update

Today my during the container start I have got notification that version 1.3.0 is available. During setup I get error that my libvrt bundle is not compatible with the new release. So you can find how I made an error and fix it.

Ansible

Ansible and Jinja Templates

Quite recently I have adopted OUD 12c configuration playbook to work with 11g PS3. And here I run into a tricky difference in configuration parameters. I'm pretty sure there are numerous ways to solve this, but my story is all about Ansible and Jinja.

Ansible

My article in #PTK magazine

UK Oracle User Group has printed my piece about RedHat Ansible and Oracle Fusion Middleware platform. Take a look and let me know if you can use it for your environments and projects. The tech part of the issue #72 could be found here.

Ansible

XML documents and Ansible

When you automate J2EE environments you can't avoid XML documents. Let's see what you can do if you should process XML as a structured data set.

WebLogic

Demo certificates in BPM 12c domain

We have found anotehr SSL hiccup in the BPM domain environment settings.

SSL

Secure Oracle HTTP Server 12c scripts

I always use custom certificates for the WebLogic servers and all the components. However, you may face connection issues with the custom NodEManager security configuration.

Ansible

Start OHS 12c no questions asked

By default, when you start domain component, such as Oracle HTTP Server instance, script prompts you for the NodeManager password. It is good security-wise, not so great for the automation.

Linux

Dude, where is my kernel?

I've got a little bit lost, trying to to install VirtualBox Guest Additions on my freshly installed and upgraded CentOS 7 virtual machine. I have tried all the tricks I found and still Virtual Box installer wont able to find my kernel headers.

OEM

OEM 13c custom certificate drama

For years I have so much of questionable syntax, partial automation support, and non-human design in Oracle products, so I could get anything with the perfect poker face. However, Oracle

Oracle SOA Suite

Automate SOA Infra configuration

For the last six months, I work on the fully automated Oracle Fusion Middleware platform delivery . We use Ansible as a main automation tool and OEM for the most of the daily Ops routines.

Ghost

Break the line

My fired, Ahmed, has published few posts with the WebLogic output. And I'm sure you have seen endless output lines, especially if the system throws an exception. So he asked me: "How we can wrap the lines in code blocks?"

WebLogic

Customize properties in WebLogic 12c

WebLogic always has a way to customize environment settings for domain or even for each managed servers. WebLogic 12c introduces a new option: setUserOverrides.sh.

How-tos

Git client for Windows: basic configuration

It's quite common when you have no admin access to the workstation and proxy server with the authorization for the internet access. First part is quite easy, you can find most of the DEV tools such maven or git in portable format. Now I'll tell you how to configure proxy for git.

OEM

OEM 12c: Elusive NodeManager

I have spent a few very confusing hours in desperate attempts to figure out why OMS instance won't start. The command output suggests checking the NodeManager log file. But it has no new entries, in fact, the file wasn't accessed at all.

Ghost

Another ode to Ghost

Google knows you better, and second link from from the top was: "Hey, looks like it's your domain! Why don't you try Google Search Console?". The site hookup process is quite easy, especially if you have our domains with Google, and use the same account.