aws openshift provisioning failing with ssh unable to connect to hosts

[vamsi454]

I am using casl ansible role to provision openshift cluster on aws. The code runs fine creating the infrastructure. It fails when connecting to hosts with below error:

TASK [wait_for_connection] *******************************************************************************************************************************************************************************************************************
Thursday 16 May 2019 14:02:57 +0000 (0:00:00.338) 0:00:17.696 **********
fatal: [3.86.197.xxx]: FAILED! => {"changed": false, "elapsed": 300, "msg": "timed out waiting for ping module test success: SSH Error: data could not be sent to remote host "3.86.197.154". Make sure this host can be reached over ssh"}
fatal: [107.20.88.xxx]: FAILED! => {"changed": false, "elapsed": 300, "msg": "timed out waiting for ping module test success: SSH Error: data could not be sent to remote host "107.20.88.182". Make sure this host can be reached over ssh"}
fatal: [54.89.103.xxx]: FAILED! => {"changed": false, "elapsed": 300, "msg": "timed out waiting for ping module test success: SSH Error: data could not be sent to remote host "54.89.103.128". Make sure this host can be reached over ssh"}

PLAY RECAP ***********************************************************************************************************************************************************************************************************************************
107.20.88.xxx : ok=0 changed=0 unreachable=0 failed=1
3.86.197.xxx : ok=0 changed=0 unreachable=0 failed=1
54.89.103.xxxx : ok=0 changed=0 unreachable=0 failed=1
localhost : ok=8 changed=2 unreachable=0 failed=0

Thursday 16 May 2019 14:07:58 +0000 (0:05:00.908) 0:05:18.604 **********

wait_for_connection ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 300.91s
Gathering Facts ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 4.32s
manage-aws-infra : Ensure the underlaying infrastructure is present ------------------------------------------------------------------------------------------------------------------------------------------------------------------- 2.69s
manage-aws-infra : Process CloudFormation Template ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 0.79s
../../../galaxy/openshift-ansible/roles/openshift_openstack : Create the Cinder volume for OpenShift Registry ------------------------------------------------------------------------------------------------------------------------- 0.71s
../../../galaxy/openshift-ansible/roles/openshift_openstack : fail -------------------------------------------------------------------------------------------------------------------------------------------------------------------- 0.62s
manage-aws-infra : create temporary directory to store the processed template --------------------------------------------------------------------------------------------------------------------------------------------------------- 0.35s
Debug hostvar ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 0.34s
../../../galaxy/infra-ansible/roles/config-hostname : Prevent cloud-init updates of hostname/fqdn (if applicable) --------------------------------------------------------------------------------------------------------------------- 0.24s
set cinder registry storage facts ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 0.23s
../../../galaxy/infra-ansible/roles/update-host : Waiting for server to come back ----------------------------------------------------------------------------------------------------------------------------------------------------- 0.23s
Set default Environment ID ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 0.22s
Updating DNS configurations ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 0.22s
Setting Common Facts ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 0.22s
Set the default app domain for routing purposes --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 0.21s
Set Dynamic Inventory Filters --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 0.20s
../../../galaxy/infra-ansible/roles/config-hostname : Install required packages ------------------------------------------------------------------------------------------------------------------------------------------------------- 0.20s
Append any custom packages to install on the target systems --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 0.20s
Gathering Facts ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 0.20s
Gathering Facts ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 0.20s

Failure summary:

1. Hosts:
   Play: Wait for systems to become reachable
   Task: wait_for_connection
   Message: timed out waiting for ping module test success: SSH Error: data could not be sent to remote host "3.86.197.xxx". Make sure this host can be reached over ssh

2. Hosts:
   Play: Wait for systems to become reachable
   Task: wait_for_connection
   Message: timed out waiting for ping module test success: SSH Error: data could not be sent to remote host "107.20.88.xxx". Make sure this host can be reached over ssh

3. Hosts:
   Play: Wait for systems to become reachable
   Task: wait_for_connection
   Message: timed out waiting for ping module test success: SSH Error: data could not be sent to remote host "54.89.103.xxx". Make sure this host can be reached over ssh