Hack to run the mssql-docker containers with a zfs filesystem mounted as data dir
This is a way to mask the O_DIRECT flag of the open function, which the mssql-server uses and which causes the mssql container to not run on zfs. Look at https://github.com/Microsoft/mssql-docker/issues/13 for more details. Thanks to @Mic92 for the hints and code.
To use it, just copy the nodirect_open.so to your container or link it like shown in the docker-compose.yml and add it to the LD_PRELOAD environment variable (also like shown in the docker-compose.yml). Alternatively just use the Dockerfile to create your own mssql-container which already contains the hack.
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