Battle of the Switches – Open Virtual Switch vs. Linux Bridge

Hits: 157Open Virtual Switch was initially conceived in a university environment, with a flow-based model providing the development primitive, and a central controller determining what those flows actually looked like. The use of OVS as a virtual switch in the IaaS market (and to be specific, in the OpenStack IaaS market) came about because the …

OVS-DPDK: Migrating to vhostuser socket mode in Red Hat OpenStack

Hits: 284The socket isn’t connected from  /var/log/libvirt/INSTANCE qemu-kvm: -chardev socket,id=charnet0,path=/var/lib/vhost_sockets/vhufa61fe7e-d0,server: info: QEMU waiting for connection on: disconnected:unix:/var/lib/vhost_sockets/vhufa61fe7e-d0,server   In order to understand the difference between the two modes and the advantage of moving to dpdkvhostuserclient mode, read the OvS documentation onvhostuser modes. In short, vhostuser allows Qemu to fetch/put network data to OvS-DPDK without overloading …

How to Simplify Container Image Management in Kubernetes with OpenShift Image Streams – Red Hat OpenShift Blog

Hits: 2498 Understanding and confuting Image Streams is central for getting Openshift to work as you need it to work, with images and code that you desire. Over the course of the past few weeks, I have been gathering feedback around Image Streams. This feature can cause a lot of misunderstanding and confusion, even for …

How to set a root password for your Openstack images

Hits: 402Login via console to your failed openstack deployment While installing Redhat Openstack on Baremetal with lots of complicated networking, you might need to access Linux via the console.  Redhat images do not come with a default username and password. So you need to configure the overcloud-full image to have a default password for root.​​​​​​​ $ …

6 Ways to Make Money With Advertising on Your Blog and the Websites To Help You

Hits: 196Is this  good way to monetize my Charming Blog There are times when Google Adsense becomes a less-than-ideal option for your blog. Here are some scenarios: Your Adsense account doesn’t get approved You’re not happy with what you’re making with Adsense and want to explore new ways Your account is disabled or banned for …

בלוגים – Test whether your Openshift is installed and working

Hits: 190Here are some common concepts  that need to be running on your systems, in order to be relavent: Openshift microservices docker kubernetes pods   Work with Docker as microservices saves compute recources, However, it requires re-thinking how development is done. Microservices also enable Continuous Integration of changes to large applications. Red Hat OpenShift is an …

Steve Bar Yakov Gindi Now Works for Octopus Computer Solutions

Hits: 200I started working at Octopus Computer Solutions Steve Bar Yakov Gindi has a new job. I am the Devops and Openstack/Openshift Expert. For a few months I have been working for Octopus Computer Solutions in Tel Aviv. I have been working with customers and in house with Open Source Red Hat Subscriptions software. I …

Just enough Ansible for Drupal | Lakshmi Narasimhan

Hits: 412This looks like a good Ansible Playbook to install Drupal 7 or any version, both on nginx and Apache. https://lakshminp.com/just-enough-ansible-drupal   Setup Back to our newly minted machine. Let’s ensure Ansible is able to communicate with our server. First, we need to create a configuration file for Ansible. This is called ansible.cfg and it’s in INI format. …

Ansible – How to Copy Directories and Files in Ansible Using Copy and Fetch Modules

Hits: 7267Run Command on lots of servers via ansible copy directories and files With Ansible you turn most fields into variables. I need to copy a bunch of files to servers so here is how to do it. You can find more examples at the link below Openshift heavily uses ansible as part of its …