Gluster config.yml playbook fails with "New Node doesn't have glusterd running"

Issue

• Attempting to run openshift-glusterfs/config.yml is failing:

[heketi] ERROR 2020/01/08 18:54:42 heketi/apps/glusterfs/app_node.go:107:glusterfs.(*App).NodeAdd: ssh: handshake failed: ssh: unable to authenticate, attempted methods [publickey none], no supported methods remain
[heketi] ERROR 2020/01/08 18:54:42 heketi/apps/glusterfs/app_node.go:108:glusterfs.(*App).NodeAdd: New Node doesn't have glusterd running

• Even with heketi.json sshexec configured correctly as documented in this KCS, SSH is not passing the correct SSH credential and is resulting in a failure:

./jin.heketi.sh topology load --json=/tmp/openshift-glusterfs-ansible-aWfp6r/topology.json
Creating cluster ... ID: 3d818bf26ec6f701bfdf63e2179f5abe
Allowing file volumes on cluster.
Allowing block volumes on cluster.
Creating node server.example.com ... Unable to create node: New Node doesn't have glusterd running
Creating node server.example.com . ... Unable to create node: New Node doesn't have glusterd running
Creating node server.example.com . ... Unable to create node: New Node doesn't have glusterd running