diff --git a/README.md b/README.md
index 7d5b569..2affb12 100644
--- a/README.md
+++ b/README.md
@@ -87,6 +87,11 @@ mongodb_replication_replset:                      # Enable replication <setname>
 mongodb_replication_replindexprefetch: "all"      # specify index prefetching behavior (if secondary) [none|_id_only|all]
 mongodb_replication_oplogsize: 1024               # specifies a maximum size in megabytes for the replication operation log
 
+## setParameter options
+# Configure setParameter option.
+# Example : 
+mongodb_set_parameters: { "enableLocalhostAuthBypass": "true", "authenticationMechanisms": "SCRAM-SHA-1,MONGODB-CR" }
+
 # MMS Agent
 mongodb_mms_agent_pkg: https://mms.mongodb.com/download/agent/automation/mongodb-mms-automation-agent-manager_1.4.2.783-1_amd64.deb
 mongodb_mms_group_id: ""
diff --git a/defaults/main.yml b/defaults/main.yml
index 4f81ac2..07d217b 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -97,3 +97,6 @@ mongodb_root_admin_password: passw0rd
 
 mongodb_root_backup_name: "backupuser"
 mongodb_root_backup_password: "passw0rd"
+
+# setParameter config
+mongodb_set_parameters:
diff --git a/templates/mongod.conf.j2 b/templates/mongod.conf.j2
index ab19f0f..2ff5617 100644
--- a/templates/mongod.conf.j2
+++ b/templates/mongod.conf.j2
@@ -55,3 +55,10 @@ systemLog:
   destination: {{ mongodb_systemlog_destination }}
   logAppend: {{ mongodb_systemlog_logappend | to_nice_json }}
   path: {{ mongodb_systemlog_path }}
+
+{% if mongodb_set_parameters -%}
+setParameter:
+  {% for key, value in mongodb_set_parameters.items() -%}
+  {{ key }}: {{ value }}
+  {% endfor -%}
+{% endif %}