Let us accept the fact – “Managing Docker on different Infrastructure is still difficult and not portable”. While working on Docker for Mac, AWS, GCP & Azure, Docker Team realized the need for a standard way to create and manage infrastructure state that was portable across any type of infrastructure, from different cloud providers to on-prem. One serious challenge is that each vendor has differentiated IP invested in how they handle certain aspects of their cloud infrastructure. It is not enough to just provision n-number of servers;what IT ops teams need is a simple and consistent way to declare the number of servers, what size they should be, and what sort of base software configuration is required.
Also, in the case of server failures (especially unplanned), that sudden change needs to be reconciled against the desired state to ensure that any required servers are re-provisioned with the necessary configuration. Docker Team introduced and open sourced “InfraKit” last year to solve these problems and to provide the ability to create a self healing infrastructure for distributed systems.
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