clean up log file from mongosh liveness probe for MongoDB StatefulSet

According to this jira:

Control logging behavior of mongosh

Every 20 sec new file named xxx_log write to this path:

# cd /.mongodb/mongosh
# ls -l 
-rw------- 1 1001 root 7844 Mar 26 10:20 64201c727d5828a783dd8e8b_log
-rw------- 1 1001 root 9580 Mar 26 10:20 64201c7c36b8deb97fc3d05f_log
-rw------- 1 1001 root 9401 Mar 26 10:20 64201c86320a49963e6e00ef_log
-rw------- 1 1001 root 7664 Mar 26 10:20 64201c86487fe50f9d58cab7_log
-rw------- 1 1001 root  140 Mar 26 10:03 config
-rw------- 1 1001 root    0 Mar 26 10:20 mongosh_repl_history

This can course pod evict due to ephemeral storage error.

Solution?

        image: docker.io/bitnami/mongodb:5.0.9-debian-10-r15
        imagePullPolicy: IfNotPresent
        livenessProbe:
          exec:
            command:
            - /bin/bash
            - -c
            - /bitnami/scripts/ping-mongodb.sh && cd /.mongodb/mongosh ; rm $(ls -1t *_log | grep -v $(ls -1t *_log | head -1))
          failureThreshold: 6
          initialDelaySeconds: 30
          periodSeconds: 20
          successThreshold: 1
          timeoutSeconds: 10
        name: mongodb

just let livenessProbe clean it own log.

That is all.