Control: StatefulSet containers should have kubelet client CA file configured appropriately

powerpipe control run kubernetes_compliance.control.statefulset_container_argument_kubelet_client_ca_file_configured

powerpipe login
powerpipe control run kubernetes_compliance.control.statefulset_container_argument_kubelet_client_ca_file_configured --share

with container_list as (
  select
    c ->> 'name' as container_name,
    trim('"' from split_part(co::text, '=', 2)) as value,
    s.name as statefulset
  from
    kubernetes_stateful_set as s,
    jsonb_array_elements(template -> 'spec' -> 'containers') as c,
    jsonb_array_elements(c -> 'command') as co
  where
    (co)::text LIKE '%--client-ca-file=%'
), container_name_with_statefulset_name as (
  select
    s.name as statefulset_name,
    s.uid as statefulset_uid,
    s.path as path,
    s.start_line as start_line,
    s.end_line as end_line,
    s.context_name as context_name,
    s.namespace as namespace,
    s.source_type as source_type,
    s.tags as tags,
    s._ctx as _ctx,
    c.*
  from
    kubernetes_stateful_set as s,
    jsonb_array_elements(template -> 'spec' -> 'containers') as c
)
select
  coalesce(s.statefulset_uid, concat(s.path, ':', s.start_line)) as resource,
  case
    when (s.value -> 'command') is null or not ((s.value -> 'command') @> '["kubelet"]') then 'ok'
    when l.container_name is not null and (s.value -> 'command') @> '["kubelet"]' and l.value is not null and l.value <> '' then 'ok'
    else 'alarm'
  end as status,
  case
    when (s.value -> 'command') is null then s.value ->> 'name' || ' command not defined.'
    when not ((s.value -> 'command') @> '["kubelet"]') then s.value ->> 'name' || ' kubelet not defined.'
    when l.container_name is not null and (s.value -> 'command') @> '["kubelet"]' and l.value is not null and l.value <> '' then s.value ->> 'name' || ' kubelet client CA file configured.'
    else s.value ->> 'name' || ' kubelet client CA file is not configured.'
  end as reason,
  s.statefulset_name as statefulset_name
  
  , coalesce(context_name, '') as context_name, namespace, source_type, coalesce(path || ':' || start_line || '-' || end_line, '') as path
from
  container_name_with_statefulset_name as s
  left join container_list as l on s.value ->> 'name' = l.container_name and s.statefulset_name = l.statefulset;