[docs/revamp] Installation

[Rajakavitha1]

resolves #393
Partially addresses: #302

Note: Create and edit docs in the main branch when you can, so that we only cherry-pick out of main, not into main.
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[darkn3rd]

While we want to encourage use of Dgraph and synergy across technology, Dgraph officially should NEVER be officially supported on a non-HA environment for production environments. HA environment means external persistent storage, automatic recovery of failed services, automatic recovery of failed systems (e.g. virtual machines), and highly recommended disaster recovery (backup/restore or export/import with automation). For development environments, local compiled binaries or containers are fine, leaving the system up to the imagination of the developer.

If we do document single systems for production, this should be in some unofficial or unsupported zone that is clear.

[Rajakavitha1]

While we want to encourage use of Dgraph and synergy across technology, Dgraph officially should NEVER be officially supported on a non-HA environment for production environments. HA environment means external persistent storage, automatic recovery of failed services, automatic recovery of failed systems (e.g. virtual machines), and highly recommended disaster recovery (backup/restore or export/import with automation). For development environments, local compiled binaries or containers are fine, leaving the system up to the imagination of the developer.

If we do document single systems for production, this should be in some unofficial or unsupported zone that is clear.

Hi, @darkn3rd and @rderbier could you please use the suggestions feature in the GithubUI to make specific changes to the lines that are documented so that it is easy to establish a context and commit the changes to save one more iteration of reviews?

[damonfeldman]

I reviewed the sections I understand, but don't think I'm expert enough to weigh in on k8s or docker swarm.

[Rajakavitha1]

I reviewed the sections I understand, but don't think I'm expert enough to weigh in on k8s or docker swarm.

Thanks for the review @damonfeldman !!! the k8s and docker swarm sections are only moved to the install directory in the new IA. Those need a rewrite as well.

[damonfeldman]

Some <IP/VARS> used but not defined, or defined and not used.