Added certificate generation layer in Dockerfile

Added ssl to backend server for proxy <> nginx communication

Updates

Added creation of default configuration in data directory.
Updated sslhttp2 snippet although not used.
Updated default config

Removed volumes for app containers because code is copied during build

Fixed healthcheck for nginx

Added official healthchecks for redis and mysql

Updated architecture schema

Updated network docker-compose

Added restart to lb containers

Merge branch 'develop'