grow-ec2-ebs-xfs

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

[ec2-user ~]$ df -h
Filesystem      Size  Used Avail Use% Mounted on
devtmpfs        1.9G     0  1.9G   0% /dev
tmpfs           2.0G     0  2.0G   0% /dev/shm
tmpfs           2.0G  740K  2.0G   1% /run
tmpfs           2.0G     0  2.0G   0% /sys/fs/cgroup
/dev/nvme0n1p1   16G   16G  166M  99% /
tmpfs           390M     0  390M   0% /run/user/1000

=> EBS resized with AWS console, then

[ec2-user ~]$ lsblk
NAME          MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
nvme0n1       259:0    0  32G  0 disk 
├─nvme0n1p1   259:1    0  16G  0 part /
└─nvme0n1p128 259:2    0   1M  0 part 

=> Partition must grow...

[ec2-user ~]$ sudo growpart /dev/nvme0n1 1
CHANGED: partition=1 start=4096 old: size=33550303 end=33554399 new: size=67104735 end=67108831
[ec2-user ~]$ lsblk
NAME          MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
nvme0n1       259:0    0  32G  0 disk 
├─nvme0n1p1   259:1    0  32G  0 part /


It's an XFS, so we need a tool (resize2fs is not applicable):
[ec2-user ~]$ sudo yum install xfsprogs
[ec2-user ~]$ sudo xfs_growfs -d /

[ec2-user ~]$ df -h
Filesystem      Size  Used Avail Use% Mounted on
devtmpfs        1.9G     0  1.9G   0% /dev
tmpfs           2.0G     0  2.0G   0% /dev/shm
tmpfs           2.0G  740K  2.0G   1% /run
tmpfs           2.0G     0  2.0G   0% /sys/fs/cgroup
/dev/nvme0n1p1   32G   16G   17G  50% /
tmpfs           390M     0  390M   0% /run/user/1000