12 Factor App Example. Port binding export services via port binding. The twelve‑factor app guidelines define a backing service as “any service the app consumes over the network as part of its normal operation.” the implication for microservices is that anything external to a service is treated as an attached resource, including other services.
Exploring the dna of highly scalable, resilient cloud applications, published by o’reilly. This is easiest done by shipping admin code with application code to provide these capabilities. 2) unlike config files, there is little chance of them being checked:
They may generate persistent data which is required to be stored in one or more stateful backing services.
In other words, they can not store persistent state locally between requests. Use declarative formats for setup automation, to minimize time and cost for new developers joining the project; Web apps are sometimes executed inside a webserver container. Focus on scalable components that can grow and shrink as needed.
