v0.16.1

Changes

secrets: discover files added or removed to the directory path (#2249)
This change tracks registered paths instead of secret files and re-reads
directory contents on each refresh cycle to discover added or removed files.
Fixes #1858

Docker image

Docker image is available in Zalando's Open Source registry:

docker run -it registry.opensource.zalan.do/teapot/skipper:v0.16.1 skipper --help
# arm64
docker run -it registry.opensource.zalan.do/teapot/skipper-arm64:v0.16.1 skipper --help
# arm v7 32bit
docker run -it registry.opensource.zalan.do/teapot/skipper-armv7:v0.16.1 skipper --help