Did you know you can find classes by name and tag? classesmatching() dynamically sources information from the current state. For example, let’s say you have classes representing a system’s role. Furthermore, let’s say that we want a host to only have a single role class defined. …
Are you familiar with CFEngine’s special variables? Probably you are familiar with sys variables like sys.fqhost (the fully qualified host name) and sys.policy_hub (the IP address of the machine the host is bootstrapped to) but I want to highlight a few other special variables you may not be …
Curious about package management with CFEngine on Windows? After sharing some history on Microsoft’s global advertising campaign for “Where do you want to go today?” Craig shared some of his recent experiments with several windows based package managers as well as their related …
Did you know that CFEngine has namespaces? Let’s see how they can facilitate policy sharing while avoiding “duplicate definitions of bundle” errors. Most of the Masterfiles Policy Framework (MPF) and policy examples for CFEngine use the default namespace. However, body file control …
Found a bug, asking for help? Use cf-support to collect info quickly. cf-support was born from interactions supporting Enterprise customers to streamline data collection and was introduced in late 2022 with the release of 3.18.31 and 3.21.02. Furthermore, it was featured on The Agent is In3 episode …
Did you know you can include one policy file from another? Traditionally you specify the files you want to make up a policy set using inputs in body common control found in your policy entry (promises.cf by default). body common control { # Paths are relative to $(sys.policy_entry_dirname) if not # …
Ever want to run just a one or a few select bundles from your policy? While developing policy it’s common to run cf-agent -KI so that you can quickly iterate on changes and then run the policy without locks. But if you are focused on select bundles you may not need the full policy to run, you …
Ever wanted to make sure a promise only runs if some other promise has succeeded? Consider this contrived example with two reports type promises, It's Friday! and I love CFEngine Feature Friday. Per normal ordering1, these two promises will be emitted in the written order. /tmp/feature-friday-7.cf …
It’s easy to switch from Community to Enterprise. Craig demonstrates the process of migrating from Community to Enterprise and touches on using many of the available components and tools from cf-remote to cf-net and so much in-between. Video The video recording is available on YouTube: At the …
Will your policy work? cf-promises can check the CFEngine policy for syntax errors and give you an overview of the host’s context. It’s always a good idea to check your policy for syntax errors. Consider this policy file: /tmp/feature-friday-6.cf bundle agent feature_friday { reports: …
Sign up for CFEngine Enterprise and connect up to 25 hosts for free. No credit card required. Get started in minutes.
Try enterprise for free
