+ exec { 'backup installed':
+ before => Package['postgresql'],
+ notify => Exec['backup permissions corrected'],
+ command => '! [ -f /var/lib/postgresql/9.6/main/PG_VERSION ] && mkdir -p /var/lib/postgresql/9.6/main && tar xzf /var/lib/postgresql/pg_base.tar.gz -C /var/lib/postgresql/9.6/main',
+ onlyif => '[ -f /var/lib/postgresql/pg_base.tar.gz ]',
+ provider => 'shell'
+ }