Minio client in backup image does not mount S3-compatible storage

We use NetApp StorageGrid with S3 API (very compatible to AWS). Minio client (mc) In the docket Image "percona/percona-xtradb-cluster-operator:1.6.0-pxc8.0-backup" does not add this storage correctly.

Using mc from image

1. run image percona-xtradb-cluster-operator:1.6.0-pxc8.0-backup on kubernetes
2. Attach to pod with shell
3. get mc information
   • mc --version
   • mc version DEVELOPMENT.GOGET
4. Run mc to add destination like done in "/usr/bin/run_backup.sh"
   • mc C /tmp/mc config host add dest "${ENDPOINT:-https://s3.amazonaws.com}" "$ACCESS_KEY_ID" "$SECRET_ACCESS_KEY"

1. Getting error 
   •  

mc: <ERROR> Unable to initialize new config from the provided credentials. Access Denied.

1. run mc with parameter works
   • mc C /tmp/mc config host add dest "${ENDPOINT:https://s3.amazonaws.com}" "$ACCESS_KEY_ID" "$SECRET_ACCESS_KEY" --api="s3v4"

1. result:
   • Added `dest` successfully.

Using new mc (brew) on MacOS workstation

1. get mc information
   • mc -v

• • mc version RELEASE.2020-11-25T23-04-07Z

1. Run same command without parameters
   • mc C /tmp/mc config host add dest "${ENDPOINT:https://s3.amazonaws.com}" "$ACCESS_KEY_ID" "$SECRET_ACCESS_KEY"

1. Result (success)
   • Added `dest` successfully.

 

It seems you use older version from minio-client.