All gpg keyservers in dockerfile are failing now about docker-kibana-alpine

[forney-tehama]

Following up - checked again today and those gpg servers are still behaving the same; so this issue still remains and is current.

[blacktop]

https://github.com/blacktop/docker-kibana-alpine/runs/4890954240?check_suite_focus=true

haven't dug into it yet, but it looks like that also fails?

[forney-tehama]

Seeing it now too.

What about something like:
curl https://artifacts.elastic.co/GPG-KEY-elasticsearch | gpg --import

Basically a similar step as provided here for importing the gpg key:
https://www.elastic.co/guide/en/kibana/current/rpm.html

This method does give a warning though (fingerprint matches though). Maybe there's a better approach?

Example:

gpg: Signature made Thu 28 May 2020 12:44:36 PM EDT
gpg:                using RSA key D27D666CD88E42B4
gpg: Good signature from "Elasticsearch (Elasticsearch Signing Key) <[email protected]>" [unknown]
gpg: WARNING: This key is not certified with a trusted signature!
gpg:          There is no indication that the signature belongs to the owner.
Primary key fingerprint: 4609 5ACC 8548 582C 1A26  99A9 D27D 666C D88E 42B4