I want to set initial data on MySQL of container. As per doc they recommend following way but its not working ``` apiVersion: extensions/v1beta1 kind: Pod metadata: name: mysql spec: containers: - name: mysql image: mysql ports: - containerPort: 3306 volumeMounts: - name: mysql-initdb mountPath: /docker-entrypoint-initdb.d volumes: - name: mysql-initdb configMap: name: mysql-initdb-config --- apiVersion: v1 kind: ConfigMap metadata: name: mysql-initdb-config data: initdb.sql: | ..... script here .... ```