DevConf.IN'19 has ended
DevConf.IN is the annual Developer’s Conference organized by Red Hat, India. The event provides a platform to the FOSS community participants and enthusiasts to come together and engage in knowledge sharing activities through technical talks, workshops, panel discussions, hackathons and much more.

All you have to do is a FREE registration here. There is no admission or ticket charges applicable to be a part of the event. All the event activities will be in English.

We are committed to foster an open and welcoming environment for everyone at our conference. We have our inclusive code of conduct and media policies, which we expect to be duly adhered during the event.

When: August 2-3, 2019

Venue: Christ University - Bengaluru, India

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Registration Link: https://devconfin19.eventbrite.com

Last Date of Registration: 31st July, 2019

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Friday, August 2 • 3:45pm - 4:45pm
Resource Management in OpenShift

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  • Objective:   
Application Containers are nothing but Linux Processes, and it requires sufficient compute resources to run.  Configure the right size of CPU and Memory resources for Containers is a sort of necessary evil, mainly while Orchestrating them using Kubernetes/OpenShift.If the containers in a POD not having the compute resources configuration, it not only affects the resource sharing of the host but also impacts the Scheduling Priority and Quota Consumption.

In production clusters, `resource configuration` is one of the mandatory best practice in a Kubernetes based platform.

We know that the Linux Control Group (C-Group) configuration is a bit daunting task. But the OpenShift `deployment config` API provides a rather simple option to set the resources for the Containers in a POD.

The objective of this hands-on workshop is to learn the APIs and Procedures to set the CPU and Memory resources for a containerized application.

  • Pre-requisites:       
Expected Skill Level: The participants for the session should have the necessary hands-on experience in Docker and Kubernetes. Also, since the example tasks in the workshop are primarily using the command-line interface (CLI) to execute, the attendees need to have prior experience in Linux CLI.

  • Hardware Requirement:  

1. All participant for the workshop should carry  `laptop` with the functional wireless network interface; and is a  mandatory requirement to attend the hands-on workshops.

2.  To save time and avoid the client-side configuration requirements in the workshop session,  a pre-configured VM needs to be deployed on your Laptops to execute the commands.

3. Attendees need to set up and test the Client VM on your laptop. You may follow the below steps to import and configure the Client VM. The  VM should be ready before coming for the session. ( Please note that the One-hour  window is not sufficient to set up the Client VM and complete the Workshop tasks)

3.1. Install `Virtualbox 6.0` or later on the laptop

3.2. Download  the `Client VM` preinstalled with OopenShift client (OC) from the URL :


3.3. Install an SSH client on the Host Machine (e.g:  putty)

3.4. Make sure that you could `SSH` the client VM from the Host Laptop using the SSH client.You may find the steps to configure `Port Forwarding` in the URL


3.5. Verify that; you could access the external URLs from the client VM terminal. (TIP:  ping -c3 google.com)

  • Takeaway:   
1. APIs to Configure Resources in OpenShift.

2. Resources Management Concepts like `requests` and `limits` for CPU and MEMORY.

3. How the resource setting impacts Quality of Service (QoS) of the Pods.

4. View and Use the resource settings in Containerized Applications.5. How we can enforce the resource settings in a namespace.

NOTE: This workshop is limited to 40 attendees. FIRST COME, FIRST SERVE.

avatar for Vino Alex

Vino Alex

Principal Architect, Redhat
A hands-on Technocrat having 18 years of experience in Solution Designing, Technical Consulting, Technology Evangelization, Practice Building, System Administration, Technology Enablement, and Entrepreneurship. Practical knowledge in a broad spectrum of emerging technologies (Open... Read More →

Friday August 2, 2019 3:45pm - 4:45pm IST
Workshop Room 811, Central Block, 8th floor