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Daniel Nachtrub

Daniel Nachtrub

Just some guy working with computers.

Running postgres in kubernetes with hugepages

Running postgres in kubernetes with hugepages

To run postgres in a container on nodes with huge pages enabled requires you to configure the container accordingly. This post shows how to do this on kubernetes/openshift.

Daniel Nachtrub
Daniel Nachtrub
Container
Fixing WinSXS manually, when DISM resigns

Fixing WinSXS manually, when DISM resigns

WinSXS corruption (the component store is repairable) is often a tedious task to repair, especially when working on Windows Server 2016 where builtin commands might not be able to fix this out of the box. This guide shows a way that worked in most circumstances to get WinSXS consistent again.

Daniel Nachtrub
Daniel Nachtrub
Windows
microk8s - change location of hostpath storage

microk8s - change location of hostpath storage

Adjusting the hostpath storage location on microk8s requires you to adjust parameters in the associated deployment. This easy change is shown in this post.

Daniel Nachtrub
Daniel Nachtrub
Container
nginx ingress controller cannot load default-ssl-certificate

nginx ingress controller cannot load default-ssl-certificate

nginx ingress controller supports scoping to namespaces. This can be an issue with the default-tls-certificate in case this is not part of the scoped namespaces.

Daniel Nachtrub
Daniel Nachtrub
Container
Use openssl to verify certificates

Use openssl to verify certificates

Certificates are essential for todays security needs. Sometimes it's required to revoke them, maybe because they are no longer needed or because they got even compromised. But how do you test manually if a certificate has been revoked?

Daniel Nachtrub
Daniel Nachtrub
Linux
Migrating zabbix from mysql to timescaledb - migration

Migrating zabbix from mysql to timescaledb - migration

This series describes how to migrate a mysql database to timescaledb - use case is to migrate a zabbix application database. This part handles the migration and switchover of the server environment up to completion of the migration.

Daniel Nachtrub
Daniel Nachtrub
Database
Terraform - transform values of a map

Terraform - transform values of a map

If you're developer, you might wonder about control structures in terraforms declarative language. Some things need to think about the corner, some things are more straight forward than expected. Second applies to using for loops to map values.

Daniel Nachtrub
Daniel Nachtrub
Cloud
Migrating zabbix from mysql to timescaledb - database setup

Migrating zabbix from mysql to timescaledb - database setup

This part continues our mysql to timescaleDB migration. We prepare our target database and add some helpers on the source to create a resumable process.

Daniel Nachtrub
Daniel Nachtrub
Database