CodePre offers a wide variety of tutorials on the topic Openstack.

OpenStack deployment on CentOS 7 with Packstack

How to use Packstack to deploy a private OpenStack Cloud on CentOS? OpenStack is a popular free and open source software platform for building public and private clouds. You can use the Packstack installation utility to run an all-in-one OpenStack cloud on CentOS 7 in minutes. After deployment, you have the option to add more… read more »

How to add RHEL 8 qcow2 image to OpenStack Glance

Are you looking for a quick way to add RHEL 8 qcow2 VM images to OpenStack Glance storage? OpenStack Image Service (Glance) Acts as the registry for the virtual disk image. As a user, you can add new images or create a snapshot (copy) of an existing server for immediate storage on Glance. Glance supports… read more »

How to resize an OpenStack instance / virtual machine

How easy is it to resize / scale an OpenStack instance or virtual machine? OpenStack Compute is the central component that provides virtual machines on demand. It enables Sysadmins to create instances with specific hardware specifications (Ram, CPU, and disk space). In OpenStack, each instance created has a style (resource template) that determines the size… read more »

How to create OpenStack projects, users and roles

As an OpenStack cloud administrator, you can create, delete, or modify projects, users, and roles in the Horizon dashboard or the OpenStack CLI. OpenStack users can be members of one or more projects. In OpenStack, a role-based access control (RBAC) mechanism is used to manage access to Cloud resources. This will force authorization if the… read more »

How to assign a floating IP address to an instance in OpenStack

Do you want to assign an OpenStack instance a floating IP address from a public network? After a virtual instance is created in OpenStack, it is automatically assigned a fixed IP address in the network. This IP address is permanently associated with the instance until the instance terminates. OpenStack also gives you an option to… read more »

How to run FreeBSD 12 on OpenStack

How do I add a FreeBSD 12 Cloud image to OpenStack? How to create a FreeBSD 12 instance on the OpenStack platform. FreeBSD is an Unix-based open source operating system used to power embedded systems, modern servers, and desktops. FreeBSD has a huge community that has grown over thirty years. It has advanced security, network… read more »

Installation of Three node OpenStack Queens Cluster – Part Five

Installing Openstack Nova Compute on another node In this fifth sequel, we shall indulge in the Installation of Nova Compute on another node. It shall have Nova Compute, Libvirt, L2 Agent, and Open vSwitch. Step 1: Install KVM. [[email protected] ~]# yum -y install qemu-kvm libvirt virt-install bridge-utils Loaded plugins: fastestmirror Loading mirror speeds from cached… read more »