{

my $uri = $letsencrypt{'Uri'} || 'staging';
if ($uri =~ m{^https?://}){
  $OUT .= "CA=$uri\n";
}
elsif ($uri =~ m/^(test(ing)?)|staging$/){
  $OUT .= "CA=https://acme-staging.api.letsencrypt.org/directory\n";
}
elsif ($uri =~ m/^prod/){
  $OUT .= "CA=https://acme-v01.api.letsencrypt.org/directory\n";
}

}
