Deployment error ""msg": "Status code was -1 and not [200]"

[allaboutopensource]

We are trying to install the medium installation of the ECE 3.5.1 using the ansible playbook given in the repo. While executing the repo we are getting the below error at the end of the playbook.

fatal: [host2]: FAILED! => {
"changed": false,
"content": "",
"elapsed": 0,
"invocation": {
"module_args": {
"attributes": null,
"body": {
"persistent": false,
"roles": [
"director",
"coordinator",
"proxy"
]
},
"body_format": "json",
"ca_path": null,
"client_cert": null,
"client_key": null,
"creates": null,
"dest": null,
"follow_redirects": "safe",
"force": false,
"force_basic_auth": true,
"group": null,
"headers": {
"Content-Type": "application/json"
},
"http_agent": "ansible-httpget",
"method": "POST",
"mode": null,
"owner": null,
"password": "VALUE_SPECIFIED_IN_NO_LOG_PARAMETER",
"remote_src": false,
"removes": null,
"return_content": true,
"selevel": null,
"serole": null,
"setype": null,
"seuser": null,
"src": null,
"status_code": [
200
],
"timeout": 30,
"unix_socket": null,
"unsafe_writes": false,
"url": "https://host1:12443/api/v1/platform/configuration/security/enrollment-tokens",
"url_password": "VALUE_SPECIFIED_IN_NO_LOG_PARAMETER",
"url_username": "admin",
"use_gssapi": false,
"use_proxy": true,
"user": "admin",
"validate_certs": false
}
},
"msg": "Status code was -1 and not [200]: Request failed: <urlopen error [Errno -2] Name or service not known>",
"redirected": false,
"status": -1,
"url": "https://host1:12443/api/v1/platform/configuration/security/enrollment-tokens"
}