Fleur Kelpin fdlk

Automated Docker releases using Maven and GitHub Actions

Life is too short for tedious, manual release processes.

Here, we will use Maven's [Release plugin][maven-release] to execute releases. Instead of triggering the release process manually, we will use a [GitHub Actions][gh-actions] workflow on the master branch. All development work is done on the dev branch (or feature branches) and a release is done when (and only when) the dev branch is merged with the master branch.

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

	import com.github.benmanes.caffeine.cache.AsyncLoadingCache;
	import com.github.benmanes.caffeine.cache.Caffeine;
	import com.github.benmanes.caffeine.cache.LoadingCache;
	import org.jetbrains.annotations.NotNull;
	import reactor.core.publisher.Mono;
	import reactor.core.scheduler.Schedulers;

	import java.time.Duration;
	import java.util.function.Function;
	import java.util.function.Supplier;