Find armadillos in savanna, badlands, or eroded badlands biomes
Approach slowly to avoid scaring them
Use a brush on the armadillo to collect armadillo scutes
Feed the armadillo spider eyes to breed or lead it
Use a lead to move the armadillo to your desired location
Build a fenced enclosure to keep it contained
Close all openings so it cannot escape
Keep it away from hostile mobs and hazards
Use a name tag if you want to prevent it from despawning
Repeat with more armadillos if you want a group