Name    │ Description                              │ Type │ Required │ Default 
─────────┼──────────────────────────────────────────┼──────┼──────────┼─────────
 command │ A command to be executed inside the      │ yes  │ hello    │ yep     
         │ container to assess its health. Each     │      │          │         
         │ space delimited token of the command is  │      │          │         
         │ a separate array element. Commands       │      │          │         
         │ exiting 0 are considered to be           │      │          │         
         │ successful probes, whilst all other exit │      │          │         
         │ codes are considered failures.           │      │          │