Documentation: Clarify which version of ArangoDB to use

[lostpebble]

Going to download and play with the dataset today. Just noticed when I got to the point of downloading ArangoDB from the site, I wasn't sure which version to go for (I know Enterprise would be okay either way) - but would be nice to know which version this project aims to be compatible with.

Also should clarify the minimum version number required for the project- I assume its 3.8 for the new geo features.

[cw00dw0rd]

Good point now that we have nightly builds up I will update the readme.
Since 3.8 is the targeted version, using the nightly build is the best way to test things.

Here is the nightly build page for more info: https://www.arangodb.com/nightly-builds/

[lostpebble]

Great, think that clarifies it all pretty nicely- thanks.

[lostpebble]

docker run -d -e ARANGO_ROOT_PASSWORD="test" -p 8529:8529 arangodb/arangodb-preview:devel-nightly

So I ran this to start the container- but the root password was not test as expected- it was just blank. I can see that this env variable has definitely been set on the container. Is the ENV variable incorrect here?

[cw00dw0rd]

I am following up on this as I have experienced the same thing. It does seem to set it to be blank.

[cw00dw0rd]

docker run -d -e ARANGO_ROOT_PASSWORD="test" -p 8529:8529 arangodb/arangodb-preview:devel-nightly

So I ran this to start the container- but the root password was not test as expected- it was just blank. I can see that this env variable has definitely been set on the container. Is the ENV variable incorrect here?

The dev team has added a new image for 3.8.0 so the new docker tag to pull is 3.8.0-nightly and includes the fix for this issue, try running:
docker run -d -e ARANGO_ROOT_PASSWORD="test" -p 8529:8529 arangodb/arangodb-preview:3.8.0-nightly

[lostpebble]

Cool, can confirm that image works with the set password now.