npm install strapi-plugin-backup

// ./config/plugins.js

module.exports = ({env}) => {
  return ({
    // ...
    backup: {
      enabled: true,
      config: {
        cronSchedule: '0 9-17 * * *', // At minute 0 past every hour from 9 through 17
        storageService: 'aws-s3',
        awsAccessKeyId: '<AWS_ACCESS_KEY_ID>',
        awsSecretAccessKey: '<AWS_SECRET_ACCESS_KEY>',
        awsRegion: '<AWS_REGION>',
        awsS3Bucket: '<AWS_S3_BUCKET>',
        databaseDriver: env('DATABASE_CLIENT'),
        mysqldumpExecutable: '/path/to/your/mysqldump/bin',
        mysqldumpOptions: [
          '--add-drop-table',
          '--extended-insert',
          '--lock-tables',
          '--dump-date'
        ],
        allowCleanup: true,
        timeToKeepBackupsInSeconds: 172800, // 2 days
        cleanupCronSchedule: '0 9 * * *', // Each day at 09:00 AM
        errorHandler: (error, strapi) => {
          console.log(error);
        },
      }
    },
    // ...
  })
};