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Fork from gitbucket markedj because knowledge's issue. markedj is JVM port of graceful markdown processor marked.js

HawtJournal is a variable length record, checksumming, append only rotating log implementation with graceful recovery.

Adds deployment support for akka-http applications in kubernetes. The facilities are: 1) promotheus statistics export and collection for akka http routes. The library collects http result codes, timings, and requests in flight. It additionally optionally exposes some basic akka statistics. 2) Graceful shutdown, health and readiness functions. These routes are provided at a low level to they can be used by both the routing DSL and special case implementations. 3) Access log collection. These functions can be freely composed to (e.g.) exclude health check routes from statistics and access log, or include them, depending on the requirements and standards of the user