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Installing Containers with OpenVZ

OpenVZ is an open source containerization solution for Linux that allows you to create independent and isolated containers that look and behave just like regular Linux systems. In this hands-on lab, you are tasked with installing and configuring OpenVZ in order to create multiple Linux containers.

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Path Info

Level

Intermediate

Duration

1h 0m

Published

Nov 12, 2018

Challenge

Add the OpenVZ repository and import the GPG signing key.
- Use wget to install the repository:
# wget -O /etc/yum.repos.d/openvz.repo http://download.openvz.org/openvz.repo
- Use rpm to import the signing key:
# rpm --import http://download.openvz.org/RPM-GPG-Key-OpenVZ
Challenge

Install the OpenVZ kernel and command line utility, as well as vzquota and ploop.
Install the OpenVZ kernel and command line utility, as well as vzquota and ploop. Once the packages are installed, reboot the machine to activate the vzkernel.
1. Install the required packages:
# yum install -y vzkernel vzctl vzquota ploop
- Reboot the host to activate the OpenVZ kernel:
# reboot
Challenge

Add the CentOS 6 template to the `/vz/template/cache` directory.

Use wget to download the template and place it in the cache directory:

# wget -O /vz/template/cache/centos-6-x86_64.tar.gz https://download.openvz.org/template/precreated/centos-6-x86_64.tar.gz
Challenge

Create and start a container.

Create and start a container that uses container ID 105, has a hostname of dev01, and uses the CentOS 6 operating system with basic configuration.

Use vzctl to create the container:

# vzctl create 105 --hostname dev01 --ostemplate centos-6-x86_64 --config basic
Challenge

Create and start a second container.

Create and start a container that uses container ID 110, has a hostname of test01, and uses the CentOS 6 operating system with basic configuration.

Use vzctl to create the container:

# vzctl create 110 --hostname test01 --ostemplate centos-6-x86_64 --config basic

Author

A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

What's a lab?

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.