Test your cookbook in Chef Test Kitchen against multiple version of the Chef Client

In large environments, during the Chef Client version change, some older servers still run the prior version of the Chef Client, the newly created servers launch with the new version of the Chef Client. It is very important to test your cookbooks with the old and the new versions of Chef Client. To specify the […]

windows_task, ArgumentError: invalid date

When the windows_task resource is called to “create” a Windows Scheduled Task that already exists, an error message is returned. In the past, the “modify” action was responsible for the modification of the scheduled tasks, since Chef 13 the “create” action would update the task if exists. ArgumentError: …[…] (…:… line …) had an error: ArgumentError: […]

.NET Framework Detection in the Windows Registry

To determine which .NET framework is installed on the Windows computer check the values in the registry. The HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full key contains two values you can check: Release Version You can use InSpec, part of the Chef DK, to check the values: describe registry_key(‘HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full’) do it { should have_property ‘Release’ } it { […]

Chef exit codes

Chef uses the standard RFC 062 exit codes. In your .kitchen.yml file, you can supply an array of exit codes in the “retry_on_exit_code” option to retry the operation in case the Chef script execution is interrupted. The usual values are retry_on_exit_code: # An array of exit codes that can indicate that kitchen should retry the converge […]

FATAL: Chef::Exceptions::Reboot: Rebooting server at a recipe’s request.

When your Chef recipe requests a reboot using the “reboot” Chef resource, the output window shows an error message: Chef Client finished, …/… resources updated in … seconds […] WARN: Rebooting server at a recipe’s request. Details: {:delay_mins=>1, :reason=>”…”, :timestamp=>…, :requested_by=>”…”} Running handlers: […] ERROR: Running exception handlers Running handlers complete […] ERROR: Exception handlers complete Chef […]

Unable to satisfy constraints on package

When you make a change to the version restrictions in the metadata.rb file and execute berks install in your Chef cookbook directory, you may get the error message: Unable to satisfy constraints on package … due to solution constraint (…). Solution constraints that may result in a constraint on …: [(…)], [(…) -> (…)] Demand that […]

could not find filename for attribute .DS_Store in cookbook

The Macintosh workstation saves application states in .DS_Store files. When you edit your Chef cookbooks the MacOS leaves these files in many folders. When the Chef cookbook is executed, the Chef Client reads all files in the attributes folder and tries to extract values from them. If the .DS_Store file is uploaded with the rest of […]

Skip steps in an InSpec integration test based on Chef attribute values

To speed up the test of some complex recipes, I use an attribute to skip certain long-running installations when I only need to test the rest of the recipe. We will pass Chef Attribute values into an InSpec test using environment variables. Declare an attribute in the atrributes.rb file with a safe default value, to allow the […]

Chef NoMethodError, undefined method

When you try to bootstrap a node to a Chef server, you may get the error message Compiling Cookbooks… ============================================================== Recipe Compile Error in c:/chef/cache/cookbooks/…/attributes/default.rb ============================================================== NoMethodError ————- undefined method `…=’ for #<Chef::Node::VividMash:0x0000000004ca3268> … Relevant File Content: >> default. … In my case, the cookbook compiler could not interpret the dot notation in the recipes. […]