Update RockyLinux.md

RockyLinux.md

@@ -23,5 +23,27 @@ btop
 stress -c 4 -i 2 -d 1
 ```
 
+# Docker
 
+```sh
+# Create encrypted partition
+dnf install cryptsetup
+cryptsetup -y -v --type luks2 luksFormat /dev/nvme0n1p6
+lsblk -f
 
+# Mount luks
+cryptsetup luksOpen /dev/nvme0n1p6 data
+ls -l /dev/mapper/data
+cryptsetup -v status data
+cryptsetup luksDump /dev/nvme0n1p6
+
+# Format ext4
+dd if=/dev/zero of=/dev/mapper/data status=progress
+mkfs.ext4 /dev/mapper/data
+
+# Mount ext4
+mkdir /data
+mount /dev/mapper/data /data
+df -h
+ls -l /data
+```