In the upcoming release of CFEngine 3.21.0 there is a change in behavior with respect to default permissions of created directories. From 3.21.0 and later directories will be created with read, write, execute permissions only for the file owner. No permissions are granted for group or other.
This change improves the default security posture to make sure that only the user executing cfengine (typically root) will have access to content in newly created directories.
Recently we introduced new feature where you can trigger agent runs and report collection from the Mission Portal UI.
This required our daemon cf-execd to behave a bit differently when periodic agent runs occur. Previously the daemon would create a new thread in which to run cf-agent, capture output, wait for completion and move on.
We changed the behavior so that the daemon forks itself and then fork/execs cf-agent as before, with the forked cf-execd processing agent run output.
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 attribute.
The motivation behind these new changes is two-fold; make it easier to learn CFEngine policy language and understand what policy is doing, and to prevent CFEngine from creating empty configuration files.
A recent change in the Masterfiles Policy Framework (MPF) is renaming bundle agent main to bundle agent mpf_main.
This change is intended to make it easier to run individual parts of your policy leveraging the library main bundle functionality (bundle agent __main__).
Library main bundles were first introduced in CFEngine 3.12.0. The functionality allows for the definition of bundle agent __main__. When this bundle definition is present in the policy entry (the first policy file that CFEngine reads) the bundle is understood to be used as the default bundlesequence.
rxdirs has provided a convenient default when setting permissions recursively. When enabled (the default prior to version 3.20.0) a promise to grant read access on a directory is extended to also include execution since quite commonly if you want to read a directory you also want to be able to list the files in the directory. However, the convenience comes with the cost of complicating security reviews since the state requested on the surface is more strict than what is actually granted.
