Issue with FROM ruby:2.6.2-alpine3.9 AS builder - RHEL 7.4

[aidfnqeenad]

Steps to reproduce

while running docker-compose build get following error:

Step 1/35 : FROM ruby:2.6.2-alpine3.9 AS builder
ERROR: Service 'ms' failed to build: Error parsing reference: "ruby:2.6.2-alpine3.9 AS builder" is not a valid repository/tag: invalid reference format

Expected behavior

What should happen?

Current behavior

What happens instead?
build fails

OS

RHEL 7.4
Using docker EE

this may be the issue?

[daniel-infosec]

Going to try to repo to see if its a RHEL or docker EE issue

[daniel-infosec]

I don't currently have access to docker EE. Can you give the updated instructions here https://github.com/praetorian-code/purple-team-attack-automation/wiki/Installation a try and let me know @lostInSpaceSomewhere ?

[aidfnqeenad]

@daniel-infosec
think i know what the issue is here.
docker version of 1.17.5 + fixes the issues.
from what my linux guys are telling me its not avialable in RHEL docker-ee yet. :(. Im looking for a workaround. Saw somewher if i use -tag paramenter in the docker-compose build it may help. testing.

[daniel-infosec]

Marking as closed unless there's further updates