AWS organization terraform multi-account pipeline

README.md

1. build accounts - this can be terraform executed in the mgmt acct
2. multi-account terragrunt run-all

   template/
     terragrunt.hcl
     main.tf
   111111111111/
     customization.tf
   
   mkdir generated
   
   # acct id list can be loaded from anywhere
   for acctid in 111111111111 222222222222; do
     # copy in the base terraform template
     cp -r template generated/$acctid
     # copy in customizations
     cp -r $acctid generated/$acctid
   done
   
   # execute terraform in parallel across all accounts
   cd generated
   terragrunt run-all apply