No more hosts left - error while doing fresh single auth-demo build

[alanzablocki]

Describe the bug
On a fresh first time install with auth-demo as addon I run into the No more hosts left error. What does it mean? Cannot seem to get past it. Snippet from the logs, right at the end:

} Status: Image is up to date for centos:7 }

[container.go:403] &{NO MORE HOSTS LEFT ************************************************************* Status: Image is up to date for centos:7 }

[container.go:403] &{PLAY RECAP *********************************************************************
deployTarget : ok=123 changed=29 unreachable=0 failed=1
localhost : ok=12 changed=1 unreachable=0 failed=0 Status: Image is up to date for centos:7 }

[container.go:403] &{Removing intermediate container bd34b9eba0dc Status: Image is up to date for centos:7 }
builds/single-2019-06-20-20-32-39/sas-viya-single-programming-only/log.txt

To Reproduce
./build.sh --type single --zip ~/path/to/SAS_Viya_deployment_data.zip --addons "auth-demo"

Expected behavior
Basic build should proceed

Environment (please complete the applicable information):
Client:
Version: 18.09.6
API version: 1.39
Go version: go1.10.8
Git commit: 481bc77156
Built: Sat May 4 02:34:58 2019
OS/Arch: linux/amd64
Experimental: false

Server: Docker Engine - Community
Engine:
Version: 18.09.6
API version: 1.39 (minimum version 1.12)
Go version: go1.10.8
Git commit: 481bc77
Built: Sat May 4 02:02:43 2019
OS/Arch: linux/amd64
Experimental: false