About the author

Strahinja Kustudic

Strahinja Kustudic

System Engineer

location
Belgrade, Serbia
Twitter
https://twitter.com/kustodian
Linked In
https://www.linkedin.com/in/strahinjakustudic

By this author

Managing Iptables with Ansible the Easy Way

Dev & Ops

When we started working with Ansible, we struggled to find a simple and easy solution to manage iptables. Ansible doesn't have a built-in way of configuring iptables, so usually a recommended way is to use a single template with all the rules defined in it, which is then configured using different variables. ...

Strahinja Kustudic

Strahinja Kustudic

System Engineer

July 07, 2016

Ansible Check Mode Tips

Dev & Ops

Ansible has been the bread and butter of automation here at Nordeus for a few years now. We've used it to automate everything from system configurations to custom orchestrated application deploys. One neat feature that we heavily use, which almost every automation software has, is the check mode, or the "dry run" as some like to call it. ...

Strahinja Kustudic

Strahinja Kustudic

System Engineer

May 13, 2016

Power Failure Testing with SSDs

Dev & Ops

Solid State Drive (SSD) is a technology which brings a few times better performance compared to enterprise SAS drives and we at Nordeus are heavily using it with Postgres. SSDs especially shine in random page reads/writes compared to regular drives, because they have a higher number of input/output operations per seconds (IOPS). ...

Strahinja Kustudic

Strahinja Kustudic

System Engineer

November 12, 2015

psql - Exit on First Error

Dev & Ops

PostgreSQL has an awesome command line client we all use and love called psql. We usually use psql in an interactive mode where we connect to the database and then type and execute queries. But sometimes it is useful to execute a whole SQL file. We can do this with: psql -U username -d database -f file. ...

Strahinja Kustudic

Strahinja Kustudic

System Engineer

November 02, 2015