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2 changes: 2 additions & 0 deletions config/v1/register.go
Original file line number Diff line number Diff line change
Expand Up @@ -78,6 +78,8 @@ func addKnownTypes(scheme *runtime.Scheme) error {
&ClusterImagePolicyList{},
&InsightsDataGather{},
&InsightsDataGatherList{},
&CRIOCredentialProviderConfig{},
&CRIOCredentialProviderConfigList{},
)
metav1.AddToGroupVersion(scheme, GroupVersion)
return nil
Expand Down
Original file line number Diff line number Diff line change
@@ -0,0 +1,105 @@
apiVersion: apiextensions.k8s.io/v1 # Hack because controller-gen complains if we don't have this
name: "CRIOCredentialProviderConfig"
crdName: "criocredentialproviderconfigs.config.openshift.io"
featureGates:
- CRIOCredentialProviderConfig
tests:
onCreate:
- name: Should create a minimal CRIOCredentialProviderConfig
initial: |
apiVersion: config.openshift.io/v1
kind: CRIOCredentialProviderConfig
metadata:
name: cluster
spec: {}
expected: |
apiVersion: config.openshift.io/v1
kind: CRIOCredentialProviderConfig
metadata:
name: cluster
spec: {}
- name: Should create a valid CRIOCredentialProviderConfig
initial: |
apiVersion: config.openshift.io/v1
kind: CRIOCredentialProviderConfig
metadata:
name: cluster
spec:
matchImages:
- 123456789.dkr.ecr.us-east-1.amazonaws.com
- "*.azurecr.io"
- gcr.io
- "*.*.registry.io"
- registry.io:8080/path
expected: |
apiVersion: config.openshift.io/v1
kind: CRIOCredentialProviderConfig
metadata:
name: cluster
spec:
matchImages:
- 123456789.dkr.ecr.us-east-1.amazonaws.com
- "*.azurecr.io"
- gcr.io
- "*.*.registry.io"
- registry.io:8080/path
- name: Should reject matchImages with invalid characters
initial: |
apiVersion: config.openshift.io/v1
kind: CRIOCredentialProviderConfig
metadata:
name: cluster
spec:
matchImages:
- "reg!stry.io"
expectedError: "spec.matchImages[0]: Invalid value: \"string\": invalid matchImages value, must be a valid fully qualified domain name in lowercase with optional wildcard, port, and path"
- name: Should reject matchImages with uppercase hostname
initial: |
apiVersion: config.openshift.io/v1
kind: CRIOCredentialProviderConfig
metadata:
name: cluster
spec:
matchImages:
- "Registry.COM"
expectedError: "spec.matchImages[0]: Invalid value: \"string\": invalid matchImages value, must be a valid fully qualified domain name in lowercase with optional wildcard, port, and path"
- name: Should reject matchImages with uppercase in the path
initial: |
apiVersion: config.openshift.io/v1
kind: CRIOCredentialProviderConfig
metadata:
name: cluster
spec:
matchImages:
- "registry.io/PaTh"
expectedError: "spec.matchImages[0]: Invalid value: \"string\": invalid matchImages value, must be a valid fully qualified domain name in lowercase with optional wildcard, port, and path"
- name: Should reject matchImages wildcard in the path
initial: |
apiVersion: config.openshift.io/v1
kind: CRIOCredentialProviderConfig
metadata:
name: cluster
spec:
matchImages:
- "registry.io:8080/pa*th"
expectedError: "spec.matchImages[0]: Invalid value: \"string\": invalid matchImages value, must be a valid fully qualified domain name in lowercase with optional wildcard, port, and path"
- name: Should reject wildcard for partial subdomains
initial: |
apiVersion: config.openshift.io/v1
kind: CRIOCredentialProviderConfig
metadata:
name: cluster
spec:
matchImages:
- "example.app*.com"
expectedError: "spec.matchImages[0]: Invalid value: \"string\": invalid matchImages value, must be a valid fully qualified domain name in lowercase with optional wildcard, port, and path"
- name: Should reject global wildcard '*'
initial: |
apiVersion: config.openshift.io/v1
kind: CRIOCredentialProviderConfig
metadata:
name: cluster
spec:
matchImages:
- "*"
expectedError: "spec.matchImages[0]: Invalid value: \"string\": global wildcard '*' is not allowed"
186 changes: 186 additions & 0 deletions config/v1/types_crio_credential_provider_config.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,186 @@
package v1

import metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"

// +genclient
// +genclient:nonNamespaced
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object

// CRIOCredentialProviderConfig holds cluster-wide singleton resource configurations for CRI-O credential provider, the name of this instance is "cluster". CRI-O credential provider is a binary shipped with CRI-O that provides a way to obtain container image pull credentials from external sources.
// For example, it can be used to fetch mirror registry credentials from secrets resources in the cluster within the same namespace the pod will be running in.
// CRIOCredentialProviderConfig configuration specifies the pod image sources registries that should trigger the CRI-O credential provider execution, which will resolve the CRI-O mirror configurations and obtain the necessary credentials for pod creation.
// Note: Configuration changes will only take effect after the kubelet restarts, which is automatically managed by the cluster during rollout.
//
// The resource is a singleton named "cluster".
//
// Compatibility level 1: Stable within a major release for a minimum of 12 months or 3 minor releases (whichever is longer).
// +kubebuilder:object:root=true
// +kubebuilder:resource:path=criocredentialproviderconfigs,scope=Cluster
// +kubebuilder:subresource:status
// +openshift:api-approved.openshift.io=https://github.com/openshift/api/pull/2725
// +openshift:file-pattern=cvoRunLevel=0000_10,operatorName=config-operator,operatorOrdering=01
// +openshift:enable:FeatureGate=CRIOCredentialProviderConfig
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⚠️ Potential issue | 🟠 Major

Remove the feature-gate annotation if this API is GA.

Line 22 still gates the v1 resource behind CRIOCredentialProviderConfig. That conflicts with the GA objective and can keep CRD exposure conditional instead of unconditional.

Proposed fix
-// +openshift:enable:FeatureGate=CRIOCredentialProviderConfig
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
// +openshift:enable:FeatureGate=CRIOCredentialProviderConfig
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@config/v1/types_crio_credential_provider_config.go` at line 22, Remove the
feature-gate annotation that gates the v1 API by deleting the line containing
"+openshift:enable:FeatureGate=CRIOCredentialProviderConfig" in
types_crio_credential_provider_config.go so the v1 CRD is unconditionally
exposed; after removing that annotation, regenerate any CRD manifests or API
docs (e.g., run the project’s codegen/make target) to ensure the CRD and
generated artifacts no longer include the FeatureGate metadata.

// +openshift:compatibility-gen:level=1
// +kubebuilder:validation:XValidation:rule="self.metadata.name == 'cluster'",message="criocredentialproviderconfig is a singleton, .metadata.name must be 'cluster'"
type CRIOCredentialProviderConfig struct {
metav1.TypeMeta `json:",inline"`

// metadata is the standard object's metadata.
// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
// +optional
metav1.ObjectMeta `json:"metadata,omitzero"`

// spec defines the desired configuration of the CRI-O Credential Provider.
// This field is required and must be provided when creating the resource.
// +required
Spec *CRIOCredentialProviderConfigSpec `json:"spec,omitempty,omitzero"`

// status represents the current state of the CRIOCredentialProviderConfig.
// When omitted or nil, it indicates that the status has not yet been set by the controller.
// The controller will populate this field with validation conditions and operational state.
// +optional
Status CRIOCredentialProviderConfigStatus `json:"status,omitzero,omitempty"`
}

// CRIOCredentialProviderConfigSpec defines the desired configuration of the CRI-O Credential Provider.
// +kubebuilder:validation:MinProperties=0
type CRIOCredentialProviderConfigSpec struct {
// matchImages is a list of string patterns used to determine whether
// the CRI-O credential provider should be invoked for a given image. This list is
// passed to the kubelet CredentialProviderConfig, and if any pattern matches
// the requested image, CRI-O credential provider will be invoked to obtain credentials for pulling
// that image or its mirrors.
// Depending on the platform, the CRI-O credential provider may be installed alongside an existing platform specific provider.
// Conflicts between the existing platform specific provider image match configuration and this list will be handled by
// the following precedence rule: credentials from built-in kubelet providers (e.g., ECR, GCR, ACR) take precedence over those
// from the CRIOCredentialProviderConfig when both match the same image.
// To avoid uncertainty, it is recommended to avoid configuring your private image patterns to overlap with
// existing platform specific provider config(e.g., the entries from https://github.com/openshift/machine-config-operator/blob/main/templates/common/aws/files/etc-kubernetes-credential-providers-ecr-credential-provider.yaml).
// You can check the resource's Status conditions
// to see if any entries were ignored due to exact matches with known built-in provider patterns.
//
// This field is optional, the items of the list must contain between 1 and 50 entries.
// The list is treated as a set, so duplicate entries are not allowed.
//
// For more details, see:
// https://kubernetes.io/docs/tasks/administer-cluster/kubelet-credential-provider/
// https://github.com/cri-o/crio-credential-provider#architecture
//
// Each entry in matchImages is a pattern which can optionally contain a port and a path. Each entry must be no longer than 512 characters.
// Wildcards ('*') are supported for full subdomain labels, such as '*.k8s.io' or 'k8s.*.io',
// and for top-level domains, such as 'k8s.*' (which matches 'k8s.io' or 'k8s.net').
// A global wildcard '*' (matching any domain) is not allowed.
// Wildcards may replace an entire hostname label (e.g., *.example.com), but they cannot appear within a label (e.g., f*oo.example.com) and are not allowed in the port or path.
// For example, 'example.*.com' is valid, but 'exa*mple.*.com' is not.
// Each wildcard matches only a single domain label,
// so '*.io' does **not** match '*.k8s.io'.
//
// A match exists between an image and a matchImage when all of the below are true:
// Both contain the same number of domain parts and each part matches.
// The URL path of an matchImages must be a prefix of the target image URL path.
// If the matchImages contains a port, then the port must match in the image as well.
//
// Example values of matchImages:
// - 123456789.dkr.ecr.us-east-1.amazonaws.com
// - *.azurecr.io
// - gcr.io
// - *.*.registry.io
// - registry.io:8080/path
//
// +kubebuilder:validation:MaxItems=50
// +kubebuilder:validation:MinItems=1
// +listType=set
// +optional
MatchImages []MatchImage `json:"matchImages,omitempty"`
}

// MatchImage is a string pattern used to match container image registry addresses.
// It must be a valid fully qualified domain name with optional wildcard, port, and path.
// The maximum length is 512 characters.
//
// Wildcards ('*') are supported for full subdomain labels and top-level domains.
// Each entry can optionally contain a port (e.g., :8080) and a path (e.g., /path).
// Wildcards are not allowed in the port or path portions.
//
// Examples:
// - "registry.io" - matches exactly registry.io
// - "*.azurecr.io" - matches any single subdomain of azurecr.io
// - "registry.io:8080/path" - matches with specific port and path prefix
//
// +kubebuilder:validation:MaxLength=512
// +kubebuilder:validation:MinLength=1
// +kubebuilder:validation:XValidation:rule="self != '*'",message="global wildcard '*' is not allowed"
// +kubebuilder:validation:XValidation:rule=`self.matches('^((\\*|[a-z0-9]([a-z0-9-]*[a-z0-9])?)(\\.(\\*|[a-z0-9]([a-z0-9-]*[a-z0-9])?))*)(:[0-9]+)?(/[-a-z0-9._/]*)?$')`,message="invalid matchImages value, must be a valid fully qualified domain name in lowercase with optional wildcard, port, and path"
type MatchImage string

// +k8s:deepcopy-gen=true
// CRIOCredentialProviderConfigStatus defines the observed state of CRIOCredentialProviderConfig
// +kubebuilder:validation:MinProperties=1
type CRIOCredentialProviderConfigStatus struct {
// conditions represent the latest available observations of the configuration state.
// When omitted, it indicates that no conditions have been reported yet.
// The maximum number of conditions is 16.
// Conditions are stored as a map keyed by condition type, ensuring uniqueness.
//
// Expected condition types include:
// "Validated": indicates whether the matchImages configuration is valid
// +optional
// +kubebuilder:validation:MaxItems=16
// +kubebuilder:validation:MinItems=1
// +listType=map
// +listMapKey=type
Conditions []metav1.Condition `json:"conditions,omitempty"`
}

// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object

// CRIOCredentialProviderConfigList contains a list of CRIOCredentialProviderConfig resources
//
// Compatibility level 1: Stable within a major release for a minimum of 12 months or 3 minor releases (whichever is longer).
// +openshift:compatibility-gen:level=1
type CRIOCredentialProviderConfigList struct {
metav1.TypeMeta `json:",inline"`

// metadata is the standard list's metadata.
// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
metav1.ListMeta `json:"metadata"`

Items []CRIOCredentialProviderConfig `json:"items"`
}

const (
// ConditionTypeValidated is a condition type that indicates whether the CRIOCredentialProviderConfig
// matchImages configuration has been validated successfully.
// When True, all matchImage patterns are valid and have been applied.
// When False, the configuration contains errors (see Reason for details).
// Possible reasons for False status:
// - ValidationFailed: matchImages contains invalid patterns
// - ConfigurationPartiallyApplied: some matchImage entries were ignored due to conflicts
ConditionTypeValidated = "Validated"

// ReasonValidationFailed is a condition reason used with ConditionTypeValidated=False
// to indicate that the matchImages configuration contains one or more invalid registry patterns
// that do not conform to the required format (valid FQDN with optional wildcard, port, and path).
ReasonValidationFailed = "ValidationFailed"

// ReasonConfigurationPartiallyApplied is a condition reason used with ConditionTypeValidated=False
// to indicate that some matchImage entries were ignored due to conflicts or overlapping patterns.
// The condition message will contain details about which entries were ignored and why.
ReasonConfigurationPartiallyApplied = "ConfigurationPartiallyApplied"

// ConditionTypeMachineConfigRendered is a condition type that indicates whether
// the CRIOCredentialProviderConfig has been successfully rendered into a
// MachineConfig object.
// When True, the corresponding MachineConfig is present in the cluster.
// When False, rendering failed.
ConditionTypeMachineConfigRendered = "MachineConfigRendered"

// ReasonMachineConfigRenderingSucceeded is a condition reason used with ConditionTypeMachineConfigRendered=True
// to indicate that the MachineConfig was successfully created/updated in the API server.
ReasonMachineConfigRenderingSucceeded = "MachineConfigRenderingSucceeded"

// ReasonMachineConfigRenderingFailed is a condition reason used with ConditionTypeMachineConfigRendered=False
// to indicate that the MachineConfig creation/update failed.
// The condition message will contain details about the failure.
ReasonMachineConfigRenderingFailed = "MachineConfigRenderingFailed"
)
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