Chef custom resource is using the same property name as the called resource

When you create a Chef custom resource, you can call other resources including custom resources you have created. For ease of use it can be convenient to use the same property name as the called resource use. property :delay_mins,          Fixnum, default: 3 reboot ‘Hostname was changed’ do reason reboot_reason delay_mins delay_mins …

Bluetooth: Not Available in Sierra on the Macintosh

After software update in Sierra on my Macintosh, my Bluetooth mouse usually stops working. The toolbar displays the Bluetooth not available icon:  When I click it, the “Bluetooth: Not Available” message is displayed. There are two recommended actions we can take to bring Bluetooth back to life. If the first one does not help, try to execute …

Second monitor does not work on Toshiba P-70A in Windows 10

Since I installed Windows 10 on my Toshiba P-70A laptop, the computer does not recognize the second monitor. To make the second monitor work, I had to uninstall the display drivers and remove them from the computer: Open the File Explorer Right click This PC and select Properties In the upper left corner select Device …

How to secure Jenkins

When you install Jenkins, the default settings allow anyone to sign up and administer it. There are many ways to secure Jenkins, the simplest is to disable the user sign up and require login to administer the server. Click sign up in the upper right corner and create an account for yourself On the Jenkins …

Minimum Windows workstation setup to work with Windows servers

If you work on a Mac or Linux workstation and need to script and administer Windows servers, you need a few Windows tools. You can create a Windows Virtual Machine hosted in the free Virtual Box from Oracle or in VMware Fusion. For installation instructions see Install the DevOps development tools on Windows Notepad++ Chocolatey …

NoMethodError: undefined method `exists?’ for Chef::Resource::File:Class

When you create a Chef custom resource and use the File class, you need to make slight a change in the syntax you use. In a Chef recipe you can use if File.exists?(“#{FileName}”) to check for the existence of a file. If we use the same line in a Chef custom resource, we get the …

Migrate databases to and from AWS RDS instances

Amazon Web Services do not provide tools to migrate data to, from and between AWS RDS instances. There is a free utility that can do the job. SQL Server Management Studio (SSMS) Install Microsoft SQL Server Management Studio (SSMS), because the utility uses libraries from it. Download the installer for free from https://msdn.microsoft.com/en-us/library/mt238290.aspx SQL Azure Migration …

Chef file locations

The Chef file and folder locations are different on Linux and Windows machines. This article explains the purpose of each file and the location. Summary Linux Windows Cookbook location /var/chef/cache/cookbooks  C:\chef\cache\cookbooks Chef Client run log /var/log/chef.log First run only C:\chef\chef-client.log Subsequent Chef client runs C:\chef\log\client.log Error log /var/chef/cache/chef-stacktrace.out C:\chef\cache\chef-stacktrace.out Ohai output /var/chef/cache/failed-run-data.json C:\chef\cache\failed-run-data.json Recommended location for …

Internalize Chocolatey packages

To access Chocolatey packages in your private network you need to download them from the Internet and store them at a location where all servers can access them. You can internalize Chocolatey packages if you have a Chocolatey Business subscription. You can use an Artifactory server to host the internalized packages. List of available packages To …

…refers to a location that is unavailable

When you try to copy a file from an external drive, or a network location, you may get the following error message: On Windows 10 … is unavailable. If the location is on this PC, make sure the device or drive is connected or the disc is inserted, and then try again. If the location …