Control: Storage accounts should use private link

powerpipe control run azure_compliance.control.storage_account_uses_private_link

powerpipe login
powerpipe control run azure_compliance.control.storage_account_uses_private_link --share

with storage_account_connection as (
  select
    a.id,
    a.name,
    count(*) as total_connections,
    count(case when connection -> 'properties' -> 'privateLinkServiceConnectionState' ->> 'status' = 'Approved' then 1 end) as approved_connections,
    count(case when connection -> 'properties' -> 'privateLinkServiceConnectionState' ->> 'status' != 'Approved' then 1 end) as non_approved_connections
  from
    azure_storage_account as a,
    jsonb_array_elements(private_endpoint_connections) as connection
  where
    private_endpoint_connections is not null
    and jsonb_array_length(private_endpoint_connections) > 0
  group by
    a.id, a.name
)
select
  distinct a.id as resource,
  case
    when jsonb_array_length(private_endpoint_connections) = 0 then 'alarm'
    when s.approved_connections > 0 and s.non_approved_connections = 0 then 'ok'
    when s.non_approved_connections > 0 then 'alarm'
  end as status,
  case
    when jsonb_array_length(private_endpoint_connections) = 0 then a.name || ' not uses private link.'
    when s.approved_connections > 0 and s.non_approved_connections = 0 then a.name || ' uses approved private link(s).'
    else a.name || ' has non approved private link(s).'
  end as reason
  
  , a.resource_group as resource_group
  , sub.display_name as subscription
from
  azure_storage_account as a
  left join storage_account_connection as s on a.id = s.id
  left join azure_subscription as sub on sub.subscription_id = a.subscription_id;