Last year we had a look at managing local groups with the custom groups promise type. As you may or may not recall, we used JSON-strings to imitate CFEngine bodies. This was due to the fact that the promise module protocol did not support bodies at that time. Today, on the other hand, we’re …
Manually managing groups on a large infrastructure can be a tedious task, and is therefore best suited through automation software like CFEngine. Unfortunately - at time of writing - CFEngine does not have any built-in promise types for managing groups. But fear not; in CFEngine 3.17, custom promise …
cf-remote is a tool for downloading and installing/deploying CFEngine. It automates a lot of the things you have to do before CFEngine is actually installed on your infrastructure, such as provisioning cloud instances, downloading CFEngine installers, copying them to remote hosts and installing / …
CFEngine 3.17.0 introduced custom promise types, which enable CFEngine users to extend core functionality and policy language in a simple way. As an example of the power and simplicity of this new feature, I will show a promise type that helps to observe a website’s status. The module which …
This tutorial focuses on how to write a promise module, implementing a new CFEngine promise type. It assumes you already know how to install promise modules and use custom promise types, as shown in the previous blog post. Why Python? Promise modules can be written in any programming language, but …
Nightly packages are very useful for testing new features of CFEngine. Right now (as of August 2020), nightly packages can be used to test out these new features: Compliance Reports. Mission Portal Dark Mode. New host info page with variable pinning and copy buttons. Note that these features are in …
About a year ago, I wrote a small python script to automate installing and bootstrapping CFEngine on virtual machines in AWS. It had some hard coded IP addresses that I needed to update when I spawned new hosts, but other than that, it worked well. During manual testing, it saved me a lot of time …
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