Resolving mDNS across VLANs with Avahi on OpenWRT
mDNS, or multicast DNS, is a way to discover devices on your network at .local domain without any central DNS configuration (also known as ZeroConf and Bonjour, etc). Fedora Magazine […]
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Anything related to the Fedora Project.
Updating OpenStack TripleO Ceph nodes safely one at a time
Part of the process when updating Red Hat’s TripleO based OpenStack is to apply the package and container updates, viaupdate run step, to the nodes in each Role (like Controller, […]
Read moreUsing Ansible and dynamic inventory to manage OpenStack TripleO nodes
TripleO based OpenStack deployments use an OpenStack all-in-one node (undercloud) to automate the build and management of the actual cloud (overcloud) using native services such as Heat and Ironic. Roles […]
Read moreUsing network namespaces with veth to NAT guests with overlapping IPs
Sets of virtual machines are connected to a virtual bridges (e.g. virbr0 and virbr1) and as they are isolated, can use the same subnet range and set of IPs. However, […]
Read moreUsing Ansible to define and manage KVM guests and networks with YAML inventories
I wanted a way to quickly spin different VMs up and down on my KVM dev box, to help with testing things like OpenStack, Swift, Ceph and Kubernetes. Some of […]
Read moreRed Hat crippling CloudForms product and migrating users to IBM
CloudForms is Red Hat’s supported version of upstream ManageIQ, an infrastructure management platform. It lets you see, manage and deploy to various platforms like OpenStack, VMWare, RHEV, OpenShift and public […]
Read moreKVM guests with emulated SSD and NVMe drives
Sometimes when you’re using KVM guests to test something, perhaps like a Ceph or OpenStack Swift cluster, it can be useful to have SSD and NVMe drives. I’m not talking […]
Read moreAutomatically updating containers with Docker
Running something in a container using Docker or Podman is cool, but maybe you want an automated way to always run the latest container? Using the :latest tag alone does […]
Read moreOwnTracks recorder in a container on Fedora with Let’s Encrypt and nginx
OwnTracks Recorder is a web application which maps locations over time. Generally, it connects to an MQTT server and subscribes to owntracks/+ topics for any location updates, but it also […]
Read moreEnabling Docker in Fedora 31 by reverting to cgroups v1
Fedora has switched to cgroups v2 by default now, but Docker doesn’t yet support it and so fails to start. If you want to use Docker then you need to […]
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