Toolbox

Here is where we can put little bash functions and other components that can be used to glue workflows together.

Generate a unique identifier based on provided input

#!/bin/bash

function make_ia_identifier {
   # squish out everything that isn't alphanumeric, _, -, or .
   IDENTIFIER=$(echo "$1" | tr -cd "[:alnum:]-_.");
   # crop it to 64 characters
   IDENTIFIER="${IDENTIFIER:0:64}";
   # check IA for duplicate
   STUBBY=0;
   until check_ia_identifier "$IDENTIFIER"; do
      IDENTIFIER="$IDENTIFIER$STUBBY";
      STUBBY=$((STUBBY += 1));
      sleep 1;
   done;
   return $IDENTIFIER
}

function check_ia_identifier {
   ia metadata -e "$1"
   if [ $? -ne 0 ]; then
      return 0
   fi
   return 1
}

make_ia_identifier "$1"