Experience has shown this can be useful, and while not strictly necessary
we should not normally expose the internals of PostgresNode objects.
=pod
+=item $node->install_path()
+
+The configured install path (if any) for the node.
+
+=cut
+
+sub install_path
+{
+ my ($self) = @_;
+ return $self->{_install_path};
+}
+
+=pod
+
=item $node->info()
Return a string containing human-readable diagnostic information (paths, etc)