Aikataulu – Palvelinten hallinta ict4tn022 3003-ti ja 3001-to – loppukevät 2019

Just write what you want (idempotency). Control almost everything with one system (single source of truth). In plain text (infrastructure as code, versionable). Control 10 computers. Or 100. Or 1000. Or control 2071 computers, like Jussi did on a previous … Continue reading

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Aikataulu – Palvelinten hallinta ict4tn022 3004-ti ja 3002-to – loppukevät 2018 5p

Just write what you want (idempotency). Control almost everything with one system (single source of truth). In plain text (infrastructure as code, versionable). Control 10 computers. Or 100. Or 1000. Or control 2071 computers, like Jussi did on a previous … Continue reading

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Configuration Management Course is Finished

My students have created many interesting projects on configuration management course. The feedback was excellent, 4.6 out of 5. The most common feedback (mode) was 5 out of 5. Thank you! Jussi Isosompppi controlled 2071 slave computers with Salt.

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Apache User Homepages Automatically – Salt Package-File-Service Example

These are example daemon configuration files for salt. Package-file-service is the most common way to configure daemons. If you’re new, start with salt master-slave installation and a commented example of SSH Server install.

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Aikataulu – Palvelinten hallinta ict4tn022 4-ti 5-ke 5 – loppukevät 2018 5p

Control 10 computers. Or 100. Or 1000. Just write what you want (idempotency). Control almost everything with one system (single source of truth). In plain text (infrastructure as code, versionable). My current research area is configuration management systems: I gave … Continue reading

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Top Configuration Management Systems – Puppet vs Salt vs Ansible vs Chef

The leading configuration management systems compared: Puppet, Chef, Ansible, Salt. My students Joona, Jori, Eero and Jarkko gave a presentation and demonstrated each system. ArcticCM provisioned and configured a couple of Linux desktops and servers, and also configured some Windows … Continue reading

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Multiple Virtual Computers in Minutes – Vagrant Multimachine

You can install multiple virtual computers in minutes. This example shows how to install two Ubuntu 16.04 virtual machines and configure SSH – in a couple minutes.

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Aikataulu – Linuxin keskitetty hallinta – 3 op, vanha OPS – loppusyksy 2017 p5 – Puppet

Control 10 computers. Or 100. Or 1000. Use Puppet, the tool used by US Gov (security baseline), Mozilla, Google (laptops and desktops) and Wikipedia. Just write what you want (idempotency). Control almost everything with one system (single source of truth). … Continue reading

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Aikataulu – Palvelinten hallinta ict4tn022-3 – 5 op, uusi OPS – loppusyksy 2017 p5

Control 10 computers. Or 100. Or 1000. Use Puppet, the tool used by US Gov (security baseline), Mozilla, Google (laptops and desktops) and Wikipedia. Just write what you want (idempotency). Control almost everything with one system (single source of truth). … Continue reading

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Hello CFEngine – CFengine3 on Ubuntu 16.04 Xenial

This article shows you how to install CFEngine 3 on Ubuntu and write a simple “Hello World” program. Modern configuration management systems let your describe your infrastructure as code in an idempotent way. You define the target state of your … Continue reading

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