It is now possible to set the ELK version in the .env file.

[ffknob]

I found it easier to change the version of the ELK stack this way.

[antoineco]

I'd rather move that to the customization section. The easiest would be to revert this: 8f5b242

[antoineco]

Good idea! Fast forward 8 months, I believe we can now assume users should have a recent enough Docker version. @deviantony, concerns?

[deviantony]

Sounds good to me, maybe rename TAG to something more explicit.

[ffknob]

How about ELK_TAG instead of TAG?
Or do you think it makes sense to have differente TAG variable to the different Elastic product (ELASTICSEARCH_TAG, LOGSTASH_TAG, KIBANA_TAG, ...) so it will be possible to have different versions for different products...?

[deviantony]

I believe that we should use the same version for each component of the stack, this is the way Elastic wants their stack to be used. I was just thinking to rename it to something else like VERSION as it's more explicit IMO.

Thoughts @antoineco ?

[antoineco]

I actually liked the original commit by the original author :)
8f5b242
Why not just reverting it?

[deviantony]

@antoineco Agree

[antoineco]

Commit reverted, merging.