Failed to complete #create action: [undefined method `version’ for nil:NilClass] on …
When you execute kitchen converge to launch an EC2 instance in AWS with Chef Test Kitchen, you get the error message: >>>>> ——Exception——- >>>>>> Class: Kitchen::ActionFailed…
Vagrant installation
Vagrant Installation Warning! The new versions of Vagrant delete the contents of the /opt/vagrant directory. If you want to keep old versions of Vagrant, first move them out of the /opt directory. Download Vagrant from https://www.vagrantup.com/ and…
Configure the Windows virtual machine in VirtualBox
Enable shared folders on the virtual machine To be able to use shared folders between the host ( your workstation ) and the Windows virtual machine. Start the Windows virtual machine in VirtualBox, Select the virtual machine window on your workstation,…
VirtualBox installation and configuration on Windows
Download Virtual Box from https://www.virtualbox.org/wiki/Downloads and follow the instructions to install it. At the time of writing this was the section where the installer files were referenced Run the downloaded installer file and accept all default…
VirtualBox installation and configuration on Macintosh
Download VirtualBox from https://www.virtualbox.org/wiki/Downloads and follow the instructions to install it. At the time of writing, this was the section where the installer files were referenced Run the downloaded installer file and accept all default…
How to create a bootable USB drive to install Windows
If the computer you want to install Microsoft WIndows on, does not have a DVD drive, you can install Windows from a USB drive. To start the computer from the USB drive, you need to prepare the drive to make it bootable. Microsoft has a free tool that can…
Cannot restart the Atlassian Confluence service on Windows
When the Atlassian Confluence wiki is installed on a Windows server, it frequently becomes unavailable. Sometimes it is possible to restart the Atlassian Confluence Windows service, but most of the time the Stop phase times out with: Windows could not…
Splunk installation
Install Splunk Navigate to the Splunk website at splunk.com, In the upper right corner select the Free Splunk button, If you don’t yet have a Splunk account, register to create one, otherwise log in, Select the Free Download in the Splunk…
Upgrade a server on an AWS EC2 instance with minimum risk and downtime
When you need to upgrade an application on an AWS EC2 instance with minimum downtime, there are many options. Upgrade an EC2 instance Stop the application, so users don’t make more changes, Create a backup of the database (snapshot of the RDS…
Test your RightScale script without creating unnecessary revisions
There are certain functions in RightScale scripts (RightScripts) that you cannot test without launching a new instance. To test your script: Edit the Head revision of the RightScale script and save it, Attach the Head revision of the RightScale script to…