Cephadm on Ubuntu 22.04

Intro

Mission: Deploy new Ceph poduction-ready cluster on 4 new hardware nodes.

From zero to presented lun in Linux with 3par cli

Intro

Mission: Create cpg / virtual volume / host / vlun via hp 3par cli and detect it in Linux

Debugging JekyII with Github Pages build errors

Intro

Mission: Debug failed github-pages site build (powered by JekyII).

Testing OpenStack RBAC (policy based) with DevStack and Patrole project

Intro

Mission: Deploy DevStack release Queens on Virtual Machine (VirtualBox; Centos 7) and test custom roles/policies with Patrole project.

Deploying Kolla Openstack release Train with Ironic on 1 baremetal node

Intro

Mission: Deploy Openstack Kolla (release Train) with Ironic on 1 baremetal node with installed CentOS 7.
Why not Bifrost: We need all core openstack services (like nova/glance/neutron etc) and ability to use this baremetal node not only as Ironic controller but as normal AIO environment for infra instances (like nexus/gitlab/jenkins/etc vm’s).
Why Train: Right now (end 2019/beginning of 2020 ) we usually deploy release Stein. But Ironic Stein have some bugs like https://bugs.launchpad.net/kolla-ansible/+bug/1843067. So we decided to go with Train instead ;)

Installing Stein OpenStack clients in python2.7 venv in 2020 year

Intro

Mission: Install OpenStack clients in pythno2.7 venv in the year 2020
Why bother: Because of cmd2/more-itertools and other python3 deps you can’t just run “pip install python-openstackclient”.

Leveraging VMware Vsphere API via Pyvmomi library

Intro

Mission: Automate several actions in vmware cluster via python pyvmomi library.
Case: Delete/Create/Update several VM’s. Create/Delete/Revert to snapshots, etc…

Monitoring Process Resources Usage With Standard Linux Tools

Intro

Mission: Implement simple process usage monitoring via linux tools Case: Investigate huge rss(30+GB)/cpu usage in openstack-exporter

Deploying and operating VMware Harbor registry

Intro

Mission: Deploy and operate VMware Harbor registry

Deploying Kolla-Ansible release Train with Ext Ceph

Intro

Mission: Deploy Kolla-ansible release Train with 1 controller, 2 computes and external Ceph (business purpose - test bug with live-migration in Train);

Deploying ceph-ansible release Nautilus (bluestore dedicated)

Intro

Mission: Deploy ceph-ansible for further Openstack deployment. 3 hosts with collocated mons and osds.

Using Diskimage-builder with custom elements

Intro

Mission: Create custom centos/ubuntu cloud image with node-exporter and mtr-exporter for cloud SLA monitoring

Connecting rsyslog with ELK

Intro

Mission: Install ELK on VM , configure rsyslog export to Logstash -> ElasticSearch

Prometheus Federation for OpenShift clusters

Intro

Mission: Deploy standalone Prometheus instances for pulling metrics from several OpenShift clusters.

Deploying OpenShift in isolated infrastructure

Intro

Mission: Deploy OpenShift OKD in isolated infrastructure.

Golang for newbie

Intro

Some golang stuff
Mission: create cull pronetheus openstack exporter

NUMA tutorial

Intro

Several commands for NUMA administration

Setup pacemaker CentOS cluster with drbd

Intro

Always forget this stuff)

How to build OpenStack dev packages with custom patches

Intro

At some point, you will need building procedure for openstack packages (deb in our case). You can do it with following commands (I use Jenkins job for that).

Integration of old OpenStack(Kilo) with new Ceph cluster (Luminous)

Intro

We had one customer who wanted to deploy new Ceph cluster on two nodes, integrate them in Old Openstack Mirantis 7.0 environment and start migration process (instances, volumes, images, etc) to it.
At first glance this task seems pretty simple - just create new cinder backend, copy new ceph.conf/keyrings and begin migration on holidays/weekend.
But in reality, old openstack services such as glance,nova,cinder dont work with new rbd/rados in Ceph Luminous. But we found a way! So let’s start.