Extend Linux host volume on AWS

- Reading time: ~1 minute 

1. First extend from AWS Console/CLI
2. Check File system:
    $ sudo file -s /dev/xvdf

# For ext3/ext4

$ df -h (Check what OS is seeing the size of volume/partition)
$ (optional for partition) sudo growpart /dev/xvdf 1 
$ lsblk
$ sudo resize2fs /dev/xvdf (sudo resize2fs /dev/xvdf1 for partition)

See: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/recognize-expanded-volume-linux.html