Laravel file upload to S3 with implicit AWS key and secret not working

I have hosted my Laravel app on an AWS EC2 instance and I tried to push a file from laravel to a S3 bucket.

EC2 instance has Ubuntu OS and have installed AWS CLI.And EC2 instance has attached an IAM role with full S3 permissions. Therefore, I need to push the file from Laravel to S3 without giving AWS key and secret values.

Additionally, I tried to push a file from EC2 to S3 with AWS CLI and it works fine.

Like this.

aws s3 mv filename.txt s3://bucket-name

But with Laravel it doesn't work.

Following is my Laravel filesystems.php S3 driver array.

's3' => [
        'driver' => 's3',
        'key' => null,
        'secret' => null,
        'region' => 'myregion',
        'bucket' => 'mys3bucket',
        'url' => 'mys3bucketurl',
        'endpoint' => 'mys3bucketurl',
    ],

The same code is working with Laravel 'local' driver in my lcoalhost without an issue.

As I'm aware Laravel supports Implicitly provided AWS credentials key and secret.

via Chebli Mohamed