Selenium is an open-source solution for automating the browser allowing you to run continuous integration tests, validate performance and scalability, and perform regression testing of web applications. This kind of automated testing is useful not only from desktop systems, but also from server machines where you may want to monitor availability or correctness of returned … Selenium: Running headless automated tests on Ubuntu
The ELK stack (ElasticSearch-Logstash-Kibana), is a horizontally scalable solution with multiple tiers and points of extension and scalability. Because so many companies have adopted the platform and tuned it for their specific use cases, it would be impossible to enumerate all the novel ways in which scalability and availability had been enhanced by load balancers, … ELK: Architectural points of extension and scalability for the ELK stack
Before running state.apply against a minion, especially in a production environment, a good sanity test can be to list the states that will be executed without actually running those states. This can be done by adding tests=True to the end of the state command. For example, to check all the states that will be applied … SaltStack: Validating States of Minion without Execution