github.com/khulnasoft-lab/defsec@v1.0.5-0.20230827010352-5e9f46893d95/rules/cloud/policies/azure/container/configured_network_policy.go (about)

     1  package container
     2  
     3  import (
     4  	"github.com/khulnasoft-lab/defsec/internal/rules"
     5  	"github.com/khulnasoft-lab/defsec/pkg/providers"
     6  	"github.com/khulnasoft-lab/defsec/pkg/scan"
     7  	"github.com/khulnasoft-lab/defsec/pkg/severity"
     8  	"github.com/khulnasoft-lab/defsec/pkg/state"
     9  )
    10  
    11  var CheckConfiguredNetworkPolicy = rules.Register(
    12  	scan.Rule{
    13  		AVDID:       "AVD-AZU-0043",
    14  		Provider:    providers.AzureProvider,
    15  		Service:     "container",
    16  		ShortCode:   "configured-network-policy",
    17  		Summary:     "Ensure AKS cluster has Network Policy configured",
    18  		Impact:      "No network policy is protecting the AKS cluster",
    19  		Resolution:  "Configure a network policy",
    20  		Explanation: `The Kubernetes object type NetworkPolicy should be defined to have opportunity allow or block traffic to pods, as in a Kubernetes cluster configured with default settings, all pods can discover and communicate with each other without any restrictions.`,
    21  		Links: []string{
    22  			"https://kubernetes.io/docs/concepts/services-networking/network-policies",
    23  		},
    24  		Terraform: &scan.EngineMetadata{
    25  			GoodExamples:        terraformConfiguredNetworkPolicyGoodExamples,
    26  			BadExamples:         terraformConfiguredNetworkPolicyBadExamples,
    27  			Links:               terraformConfiguredNetworkPolicyLinks,
    28  			RemediationMarkdown: terraformConfiguredNetworkPolicyRemediationMarkdown,
    29  		},
    30  		Severity: severity.High,
    31  	},
    32  	func(s *state.State) (results scan.Results) {
    33  		for _, cluster := range s.Azure.Container.KubernetesClusters {
    34  			if cluster.NetworkProfile.NetworkPolicy.IsEmpty() {
    35  				results.Add(
    36  					"Kubernetes cluster does not have a network policy set.",
    37  					cluster.NetworkProfile.NetworkPolicy,
    38  				)
    39  			} else {
    40  				results.AddPassed(&cluster)
    41  			}
    42  		}
    43  		return
    44  	},
    45  )