feat: distribution analyzer support for kind (#1521)

Author: emosbaugh

examples/preflight/sample-preflight.yaml

@@ -75,6 +75,9 @@ spec:
           - pass:
               when: "== oke"
               message: OKE is a supported distribution
+          - pass:
+              when: "== kind"
+              message: Kind is a supported distribution
           - warn:
               message: Unable to determine the distribution of Kubernetes
     - nodeResources:

pkg/analyze/distribution.go

@@ -27,6 +27,7 @@ type providers struct {
 	rke2          bool
 	k3s           bool
 	oke           bool
+	kind          bool
 }
 
 type Provider int
@@ -47,6 +48,7 @@ const (
 	rke2          Provider = iota
 	k3s           Provider = iota
 	oke           Provider = iota
+	kind          Provider = iota
 )
 
 type AnalyzeDistribution struct {
@@ -162,6 +164,10 @@ func ParseNodesForProviders(nodes []corev1.Node) (providers, string) {
 			foundProviders.ibm = true
 			stringProvider = "ibm"
 		}
+		if strings.HasPrefix(node.Spec.ProviderID, "kind:") {
+			foundProviders.kind = true
+			stringProvider = "kind"
+		}
 	}
 
 	if foundMaster {
@@ -335,6 +341,8 @@ func compareDistributionConditionalToActual(conditional string, actual providers
 		isMatch = actual.k3s
 	case oke:
 		isMatch = actual.oke
+	case kind:
+		isMatch = actual.kind
 	}
 
 	switch parts[0] {
@@ -377,6 +385,8 @@ func mustNormalizeDistributionName(raw string) Provider {
 		return k3s
 	case "oke":
 		return oke
+	case "kind":
+		return kind
 	}
 
 	return unknown

pkg/analyze/distribution_test.go

@@ -39,6 +39,14 @@ func Test_compareDistributionConditionalToActual(t *testing.T) {
 			},
 			expected: true,
 		},
+		{
+			name:        "== kind when kind is found",
+			conditional: "== kind",
+			input: providers{
+				kind: true,
+			},
+			expected: true,
+		},
 	}
 	for _, test := range tests {
 		t.Run(test.name, func(t *testing.T) {