Looking for a tool to help you format your CFEngine policy? Have you heard of cffmt? You might recall that we had a chat with the author, Miek Gieben in The agent is in - Episode 24.1 In case you missed it, cffmt is a command line tool for formatting CFEngine policy files, like gofmt for .cf files.2 …
Have you seen the new Groups feature in CFEngine Enterprise Mission Portal? It was first released in 3.23.0 and it’s part of the 3.24 LTS series released earlier this year, let’s check it out. Groups in Mission Portal can be based on any host reported data. They can be dynamic (hosts can …
Did you know CFEngine can self-organize hosts into different groups? Say you have a few hosts that you want to reboot once a month. You don’t care when, but you want the hosts to self-organize and pick a date. The select_class attribute for classes type promises might be what you’re …
The prolific contributor and CFEngine Champion Bas Van der Vlies joins the team for a chat about his history and experience with CFEngine dating back to version 1.0.3. For this special Halloween edition Bas joined Cody, Craig and Nick to reflect on his journey getting into information technology …
What’s the difference between an associative array and a data container in CFEngine? CFEngine has two ways in which structured data can be used, associative arrays (sometimes called classic arrays) and data containers. Let’s take a look at a simple data structure. Here we have two data …
Ever need to do some math during policy evaluation? Sometimes configuration settings are based on available resources. For example, what if you want to calculate the size of shared buffers to be 25% of your available memory? Let’s write some policy. First, we need to figure out how much memory …
Ever need to visualize the data you’re working with? storejson() to the rescue! Let’s re-visit our example for sys.os_release from Feature Friday #12: Special variables: bundle agent __main__ { reports: "My custom key 'NORTHERN_TECH_OWNER' contains …
Ever want a custom CFEngine Agent logo? Check out agentsvg. You can find agentsvg in core/contrib/ it’s a python script that can generate CFEngine agent logos. python3 ./agentsvg.py > agent.svg python3 ./agentsvg.py --body="#f5821f" --head="#052569" > …
Did you know you can use variables in class expressions? If you are reading this, you probably are already familiar with the ability to use class expressions to restrict the context of multiple promises. For example, here we have three reports type promises, all guarded by the class expression …
Get CFEngine support in Zed, “The editor for what’s next”. “Zed is a next-generation code editor designed for high-performance collaboration with humans and AI.” Cody and Nick are joined by Herman for an introduction to tree-sitter grammars, language servers and a quick …
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