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

powerpipe control run kubernetes_compliance.control.replicaset_container_argument_kubelet_client_ca_file_configured

powerpipe login
powerpipe control run kubernetes_compliance.control.replicaset_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,
    r.name as replicaset
  from
    kubernetes_replicaset as r,
    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_replicaset_name as (
  select
    r.name as replicaset_name,
    r.uid as replicaset_uid,
    r.path as path,
    r.start_line as start_line,
    r.end_line as end_line,
    r.context_name as context_name,
    r.namespace as namespace,
    r.source_type as source_type,
    r.tags as tags,
    r._ctx as _ctx,
    c.*
  from
    kubernetes_replicaset as r,
    jsonb_array_elements(template -> 'spec' -> 'containers') as c
)
select
  coalesce(r.replicaset_uid, concat(r.path, ':', r.start_line)) as resource,
  case
    when (r.value -> 'command') is null or not ((r.value -> 'command') @> '["kubelet"]') then 'ok'
    when l.container_name is not null and (r.value -> 'command') @> '["kubelet"]' and coalesce((l.value)::int, 0) > 0 then 'ok'
    else 'alarm'
  end as status,
  case
    when (r.value -> 'command') is null then r.value ->> 'name' || ' command not defined.'
    when not ((r.value -> 'command') @> '["kubelet"]') then r.value ->> 'name' || ' kubelet not defined.'
    when l.container_name is not null and (r.value -> 'command') @> '["kubelet"]' and l.value is not null and l.value <> '' then r.value ->> 'name' || ' kubelet client CA file configured.'
    else r.value ->> 'name' || ' kubelet client CA file not configured.'
  end as reason,
  r.replicaset_name as replicaset_name
  
  , coalesce(context_name, '') as context_name, namespace, source_type, coalesce(path || ':' || start_line || '-' || end_line, '') as path
from
  container_name_with_replicaset_name as r
  left join container_list as l on r.value ->> 'name' = l.container_name and r.replicaset_name = l.replicaset;