Recently, I’ve been playing around with the ansible promise type by Fabio Tranchitella. It’s amazing how easy it is to leverage the benefits of agents with all the existing automation from the ansible community. Hence, I wanted to share it in a blog post, with an emphasis on easy. …
We recently introduced a new policy function classfilterdata(), which will be available in the next LTS release of CFEngine, version 3.27. If you can’t wait for the release, feel free to grab the latest master non-LTS from our nightly packages. In this blog post, we’ll illustrate how the …
Note: this blog post was updated January 29th, 2026 Here comes a profoundly belated blog post on a behavior change. Better late than never. Due to various bugs with the glob engine on Windows, we decided to rewrite it in CFEngine 3.24.0. Not only does the new glob engine resolve these bugs on …
In the latest version of the CFEngine network protocol (filestream - v4), we leveraged librsync for efficient file copying using their Streaming API. While implementing the file streaming in CFEngine, I found that the documentation on the Streaming API was a bit unclear. Thus, I created two example …
When executing commands in a shell, the program and its arguments are typically separated by spaces. This command reads the content of two files and prints it out (concatenating it): command cat one.txt two.txt In the example above, cat is the command / program, while one.txt is the first argument, …
To manage large infrastructures, efficient solutions for both making changes and observing the current state are necessary. As most information (inventory) about hosts is quite predictable and static, there are many opportunities for optimizations in terms of compression and avoiding re-transmission …
We want to bring to your attention a critical security matter recently identified in CFEngine Enterprise version 3.6.0 and subsequent releases. This vulnerability pertains to a A03:2021 - Injection flaw within the CFEngine Enterprise web UI, Mission Portal, which can lead to unauthorized access to …
Opening and reading files may cause your program to block indefinitely. In this blogpost we'll discuss how to work around this issue.
Our beloved cfbs CLI tool for working with CFEngine Build is rapidly evolving. At the time of writing, we are currently at version 3.2.1. Thus I would like to take this opportunity to talk a bit about the latest and greatest features; including support for users to manipulate input parameters in …
In the upcoming CFEngine 3.20 release we are making a change in the behaviour of the create attribute for the files promises that manage the entire content of a file. This includes promises with the template methods mustache, inline_mustache and cfengine; as well as promises with the content …
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