Caused by: org.springframework.data.mongodb.UncategorizedMongoDbException: Exception authenticating MongoCredential{mechanism=SCRAM-SHA-1, userName='<usrName>', source='<source>', password=<hidden>, mechanismProperties=<hidden>}; nested exception is com.mongodb.MongoSecurityException: Exception authenticating MongoCredential{mechanism=SCRAM-SHA-1, userName='<usrName>', source='<source>', password=<hidden>, mechanismProperties=<hidden>}
Caused by: com.mongodb.MongoSecurityException: Exception authenticating MongoCredential{mechanism=SCRAM-SHA-1, userName='<usrName>', source='<source>', password=<hidden>, mechanismProperties=<hidden>}
Caused by: com.mongodb.MongoCommandException: Command failed with error 18 (AuthenticationFailed): 'Authentication failed.' on server <Primary-Host>:27017. The full response is {"operationTime": {"$timestamp": {"t": 1601217500, "i": 1}}, "ok": 0.0, "errmsg": "Authentication failed.", "code": 18, "codeName": "AuthenticationFailed", "$clusterTime": {"clusterTime": {"$timestamp": {"t": 1601217500, "i": 1}}, "signature": {"hash": {"$binary": {"base64": "KSwBAZHnhcqmjdsAy9HHVB8+yZQ=", "subType": "00"}}, "keyId": 6876114453302083588}}}

spring.data.mongodb.uri=mongodb://<usrName>:<password>@<host-primary>:27017,<host-secondary>:27017/<dbName>?<replicaset name>
spring.data.mongodb.auto-index-creation = true

spring.data.mongodb.host=<Primary-Host>