s3-dump-cronjob.yaml

apiVersion: batch/v1beta1
kind: CronJob
metadata:
  name: master-mysqlbackup-cronjob
spec:
  schedule: "0 */4 * * *"
  concurrencyPolicy: Forbid
  successfulJobsHistoryLimit: 2
  failedJobsHistoryLimit: 1
  jobTemplate:
    spec:
      template:
        spec:
          containers:
          - name: mysqldump-s3-backup
            image: d3fk/mysql-s3-backup:latest
            args:
            - sh
            - -c
            - mysqldump -u ${MYSQL_USER} -h ${MYSQL_HOST} --password=${MYSQL_PASSWORD} --databases ${DATABASES} > /tmp/dump/databasebackup.sql && s3cmd put --ssl --server-side-encryption --server-side-encryption-kms-id=${YOUR_KMS_KEY_ID} /tmp/dump/databasebackup.sql s3://${YOUR_BUCKET_NAME}/DB/
            volumeMounts:
            - name: tmp-volume
              mountPath: /tmp/dump/
            - name: s3config
              mountPath: /root/.s3cfg
              subPath: .s3cfg

          volumes:
          - name: tmp-volume
            emptyDir: {}
          - name: s3config
            configMap:
              name: s3config

          restartPolicy: Never