mongodb单节点伪集群

#设置key
openssl rand -base64 756 > /etc/mongodb-keyfile
chmod 600 /etc/mongodb-keyfile
chown mongodb:mongodb /etc/mongodb-keyfile

vi /etc/mongod.conf

# mongod.conf
storage:
  dbPath: /var/lib/mongodb
  wiredTiger:
    engineConfig:
      cacheSizeGB: 24

systemLog:
  destination: file
  logAppend: true
  path: /var/log/mongodb/mongod.log

net:
  port: 27017
  bindIp: 0.0.0.0

processManagement:
  timeZoneInfo: /usr/share/zoneinfo

security:
  authorization: enabled
  keyFile: /etc/mongodb-keyfile

replication:
  replSetName: rs0

#初始化副本
rs.initiate();