run sinatra app and local redis-server. override app run script by code repo.
$ docker build -t alpine-nginx-ruby:latest .
Run like under the alm-agent.
$ docker run --rm \
-v `pwd`/code:/srv/code \
-v `pwd`/code/mobingi-init.sh:/tmp/init/init.sh \
-e MYENV=TESTSERVER \
-p 8080:9292 alpine-nginx-ruby:latest