I. Overview of Puppet
Puppet is an Open-source, Ruby based system Configuration management tool based on C/S deployment architecture. It is a configuration management software designed to realize the automation management of data center, it uses the Cross-platform language specification, manages the configuration file, the user, the software package, the system service and so on. The client communicates with the server every half hour by default and confirms that there is an update. Of course, you can also configure the proactive trigger to force the client to update. This makes the day-to-day system management tasks code, the benefits of code can be shared, saved, avoid duplication of effort, can quickly restore and rapid large-scale deployment of servers.
Second, puppet framework
Puppet's server side holds all the configuration code for the client server, which is called manifest in puppet. After the client downloads the manifest, the server can be configured according to manifest, such as package management, user management, and file management. The puppet architecture is as follows:
Third, the application scene
Unified installation, configuration management software
Unified Configuration System Optimization parameters
Periodically detect if the service is running
The role of the device when you quickly replace the cluster