Upgrading ceph - migrating from docker hub
Many vendors are moving container registries away from docker hub. One of them is ceph. This means: Recent container images are no longer published via docker hub and will prevent you from upgrading using cephadm if your installation is still pointing to docker hub. Issue: failed to pull target image
pfsense - access ipmi using ipmitool
Recent versions of pfsense ship with ipmitool. To use it you need to load the kernel module - this guide shows how to do this.
Run c# inside powershell
Powershell is quite powerful already for most purposes. Yet there are times when you need to use features that are not available in powershell directly. An example would be interacting with the OS via DllImports (like Windows API). Luckily, powershell has the ability to compile c# inline using the Add-Type
Triggering elasticsearch ilm step manually
Elasticsearch provides an index lifecycle management that will handle traversal of indices through a whole bunch of lifecycle steps. Sometimes you might want to give the ILM a small tap and move to a specific step manually. This guide will explain how this can be done.
ceph reports "n hosts fail cephadm check"
One of our ceph clusters entered HEALTH_WARN state with reason "1 hosts fail cephadm check". This guide shows a quick tip how to find out more about this issue.
The one when compatible foreign keys are incompatible
Upgrading our ghost blog ran into issues migrating the database schema. Foreign keys failed with "Referencing column and referenced column in foreign key constraint are incompatible.". Let's fix it.
Migrating zabbix from mysql to timescaledb - setting up environment
This series covers migrating a zabbix database from mysql to timescaledb. In this post we're preparing the databases for the migration.
sudo root shell with autocomplete
Switching user using sudo results in a limited shell without command completion. Using the right sudo command omits this limit and provides a fully fledged shell.
