Randomize Neo4j password at install

[fastlorenzo]

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[fastlorenzo]

Fixes #99

[MarcOverIP]

Should also include printing the password at the end of install-elkserver.sh.

Another thing to consider - given issue #104 - these creds should also be stored elsewhere for the jupyter notebooks to include. But I believe its better addressed in an PR for that issue

[fastlorenzo]

Should also include printing the password at the end of install-elkserver.sh.

Another thing to consider - given issue #104 - these creds should also be stored elsewhere for the jupyter notebooks to include. But I believe its better addressed in an PR for that issue

let's first merge PR #100 first then or we'll have a conflict, I'll add the output of the password when done.

Regarding the #104, the password is in .env for now, maybe we should have a step in the installer that would create a specific config file for Jupyter and mount it?