Docker

Solomon Hykes, CTO of dotCloud a PaaS (Platform as a Service) company, launched Docker in the year 2013, which reintroduced containerization. Before Docker, containers were just isolated processes and application portability as containers across discrete environments was never guaranteed. Docker introduced application packaging and shipping with containers. Docker isolated applications from infrastructure, which allowed developers to write and test the applications on traditional desktop OS and then easily package and ship it to production servers with less trouble.