In the previous post, we have seen how to generate multiple files using with_sequence and loop features.
Here, we will introduce the delay functionality in the loop feature. This will give a pause after every iteration. So, each file will be created at specific time interval. The official document on loop control can be found here. Download the .yml file directly if you don’t want to go through the discussion.
Loop and with_sequence allows the commands or the instructions to be executed iteratively. However, I find the syntax bit different from other programming language. Probably this is due to YAML structure. Anyways, lets see few examples and see how to use loop and with_sequence. You can find the official documentation on loop here and on with_sequence here. The list of examples are as follows:
- Generate empty file from a list (using with_items) (.yml file)
- Generate empty file from a list (using loop)(.yml file)
- Generate empty files with pattern (.yml file)
Two ways to test the connection with remote servers.
- One is to write the playbook and execute
- Other is directly passing the ping command as an argument to ansible command
See in details…
Before moving towards installation of Cloudify, it is recommended to obtain the basic concept of Cloudify and TOSCA standard. In this post we will see how to install Cloudify CLI, through which we can deploy, scale and monitor the different cloud service. For better understanding lets install this in local machine. The basic steps can be refereed and extended for actual cloud environment.
The steps are as follows: <read more…>
TOSCA is a standard that enhance the portability and operational management of cloud and other types of applications and services across the entire life-cycle. On the other hand, Cloudify is an open source cloud orchestration framework and it Domain Specific Language is based on TOSCA standard. Click here to read in more detail.