OCPNODE-3029: WIP: add support for required minimum kubelet version

go.mod

@@ -135,3 +135,5 @@ require (
 	sigs.k8s.io/json v0.0.0-20241010143419-9aa6b5e7a4b3 // indirect
 	sigs.k8s.io/structured-merge-diff/v4 v4.4.2 // indirect
 )
+
+replace github.com/openshift/api => github.com/haircommander/api v0.0.0-20250320174534-2b1af833cc45

go.sum

@@ -145,6 +145,8 @@ github.com/grpc-ecosystem/grpc-gateway v1.16.0 h1:gmcG1KaJ57LophUzW0Hy8NmPhnMZb4
 github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
 github.com/grpc-ecosystem/grpc-gateway/v2 v2.20.0 h1:bkypFPDjIYGfCYD5mRBvpqxfYX1YCS1PXdKYWi8FsN0=
 github.com/grpc-ecosystem/grpc-gateway/v2 v2.20.0/go.mod h1:P+Lt/0by1T8bfcF3z737NnSbmxQAppXMRziHUxPOC8k=
+github.com/haircommander/api v0.0.0-20250320174534-2b1af833cc45 h1:ivGmEOdYPR9JGyfldR2kMpaBwDMx8yaXQjmCVx0ltXk=
+github.com/haircommander/api v0.0.0-20250320174534-2b1af833cc45/go.mod h1:yk60tHAmHhtVpJQo3TwVYq2zpuP70iJIFDCmeKMIzPw=
 github.com/hashicorp/golang-lru v0.5.4 h1:YDjusn29QI/Das2iO9M0BHnIbxPeyuCHsjMW+lJfyTc=
 github.com/hashicorp/golang-lru v0.5.4/go.mod h1:iADmTwqILo4mZ8BN3D2Q6+9jd8WM5uGBxy+E8yxSoD4=
 github.com/ianlancetaylor/demangle v0.0.0-20210905161508-09a460cdf81d/go.mod h1:aYm2/VgdVmcIU8iMfdMvDMsRAQjcfZSKFby6HOFvi/w=
@@ -203,8 +205,6 @@ github.com/opencontainers/runc v1.1.13 h1:98S2srgG9vw0zWcDpFMn5TRrh8kLxa/5OFUstu
 github.com/opencontainers/runc v1.1.13/go.mod h1:R016aXacfp/gwQBYw2FDGa9m+n6atbLWrYY8hNMT/sA=
 github.com/opencontainers/selinux v1.11.0 h1:+5Zbo97w3Lbmb3PeqQtpmTkMwsW5nRI3YaLpt7tQ7oU=
 github.com/opencontainers/selinux v1.11.0/go.mod h1:E5dMC3VPuVvVHDYmi78qvhJp8+M586T4DlDRYpFkyec=
-github.com/openshift/api v0.0.0-20250124212313-a770960d61e0 h1:dCvNfygMrPLVNQ06bpHXrxKfrXHiprO4+etHrRUqI8g=
-github.com/openshift/api v0.0.0-20250124212313-a770960d61e0/go.mod h1:yk60tHAmHhtVpJQo3TwVYq2zpuP70iJIFDCmeKMIzPw=
 github.com/openshift/build-machinery-go v0.0.0-20250102153059-e85a1a7ecb5c h1:6XcszPFZpan4qll5XbdLll7n1So3IsPn28aw2j1obMo=
 github.com/openshift/build-machinery-go v0.0.0-20250102153059-e85a1a7ecb5c/go.mod h1:8jcm8UPtg2mCAsxfqKil1xrmRMI3a+XU2TZ9fF8A7TE=
 github.com/openshift/client-go v0.0.0-20250125113824-8e1f0b8fa9a7 h1:4iliLcvr1P9EUMZgIaSNEKNQQzBn+L6PSequlFOuB6Q=

pkg/operator/configobserver/featuregates/featuregate.go

@@ -14,17 +14,22 @@ type FeatureGate interface {
 	Enabled(key configv1.FeatureGateName) bool
 	// KnownFeatures returns a slice of strings describing the FeatureGate's known features.
 	KnownFeatures() []configv1.FeatureGateName
+	// RenderedMinimumComponentVersion returns the minimum component version that caused this set of features
+	// to be generated.
+	RenderedMinimumComponentVersions() []configv1.MinimumComponentVersion
 }
 
 type featureGate struct {
-	enabled  []configv1.FeatureGateName
-	disabled []configv1.FeatureGateName
+	enabled         []configv1.FeatureGateName
+	disabled        []configv1.FeatureGateName
+	renderedVersion []configv1.MinimumComponentVersion
 }
 
-func NewFeatureGate(enabled, disabled []configv1.FeatureGateName) FeatureGate {
+func NewFeatureGate(enabled, disabled []configv1.FeatureGateName, renderedVersion []configv1.MinimumComponentVersion) FeatureGate {
 	return &featureGate{
-		enabled:  enabled,
-		disabled: disabled,
+		enabled:         enabled,
+		disabled:        disabled,
+		renderedVersion: renderedVersion,
 	}
 }
 
@@ -46,3 +51,7 @@ func (f *featureGate) KnownFeatures() []configv1.FeatureGateName {
 
 	return allKnown
 }
+
+func (f *featureGate) RenderedMinimumComponentVersions() []configv1.MinimumComponentVersion {
+	return f.renderedVersion
+}

pkg/operator/configobserver/featuregates/hardcoded_featuregate_reader.go

@@ -62,7 +62,8 @@ func (c *hardcodedFeatureGateAccess) AreInitialFeatureGatesObserved() bool {
 }
 
 func (c *hardcodedFeatureGateAccess) CurrentFeatureGates() (FeatureGate, error) {
-	return NewFeatureGate(c.enabled, c.disabled), c.readErr
+	// TODO FIXME not hardcoded
+	return NewFeatureGate(c.enabled, c.disabled, nil), c.readErr
 }
 
 // NewHardcodedFeatureGateAccessFromFeatureGate returns a FeatureGateAccess that is static and initialised from

pkg/operator/configobserver/featuregates/simple_featuregate_reader.go

@@ -50,8 +50,9 @@ type FeatureGateAccess interface {
 }
 
 type Features struct {
-	Enabled  []configv1.FeatureGateName
-	Disabled []configv1.FeatureGateName
+	Enabled                          []configv1.FeatureGateName
+	Disabled                         []configv1.FeatureGateName
+	RenderedMinimumComponentVersions []configv1.MinimumComponentVersion
 }
 
 type FeatureChange struct {
@@ -263,10 +264,12 @@ func (c *defaultFeatureGateAccess) CurrentFeatureGates() (FeatureGate, error) {
 	}
 	retEnabled := make([]configv1.FeatureGateName, len(c.currentFeatures.Enabled))
 	retDisabled := make([]configv1.FeatureGateName, len(c.currentFeatures.Disabled))
+	retRenderedMinimumComponentVersions := make([]configv1.MinimumComponentVersion, len(c.currentFeatures.RenderedMinimumComponentVersions))
 	copy(retEnabled, c.currentFeatures.Enabled)
 	copy(retDisabled, c.currentFeatures.Disabled)
+	copy(retRenderedMinimumComponentVersions, c.currentFeatures.RenderedMinimumComponentVersions)
 
-	return NewFeatureGate(retEnabled, retDisabled), nil
+	return NewFeatureGate(retEnabled, retDisabled, retRenderedMinimumComponentVersions), nil
 }
 
 func (c *defaultFeatureGateAccess) runWorker(ctx context.Context) {
@@ -308,6 +311,11 @@ func featuresFromFeatureGate(featureGate *configv1.FeatureGate, desiredVersion s
 			features.Disabled = append(features.Disabled, disabled.Name)
 		}
 		break
+		features.RenderedMinimumComponentVersions = make([]configv1.MinimumComponentVersion, 0, len(featureGateValues.RenderedMinimumComponentVersions))
+		for _, cv := range featureGateValues.RenderedMinimumComponentVersions {
+			features.RenderedMinimumComponentVersions = append(features.RenderedMinimumComponentVersions, cv)
+		}
+
 	}
 
 	if !found {