https://hub.docker.com/r/nshine/kira
docker build -f Dockerfile.arm32v6 -t nshine/kira:arm32v6-latest .
docker build -f Dockerfile.amd64 -t nshine/kira:amd64-latest .
docker push nshine/kira:arm32v6-latest
docker push nshine/kira:amd64-latest
docker manifest create nshine/kira:latest nshine/kira:amd64-latest nshine/kira:arm32v6-latest
docker manifest annotate nshine/kira:latest nshine/kira:arm32v6-latest --os linux --arch arm
docker manifest push nshine/kira:latest