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cluster_types.go
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/
cluster_types.go
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// Copyright (c) 2021, and 2022 Cisco and/or its affiliates. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package v1alpha1
import (
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
)
const (
SecretTypeClusterRegistry corev1.SecretType = "k8s.cisco.com/cluster-registry-secret"
KubeconfigKey = "kubeconfig"
)
// AuthInfo holds information that describes how a client can get
// credentials to access the cluster.
type AuthInfo struct {
SecretRef NamespacedName `json:"secretRef,omitempty"`
}
// Equivalent of types.NamespacedName with JSON tags
type NamespacedName struct {
Name string `json:"name,omitempty"`
Namespace string `json:"namespace,omitempty"`
}
type KubernetesAPIEndpoint struct {
// The network name of the client to match whether if it should
// use the corresponding server address.
// +optional
ClientNetwork string `json:"clientNetwork,omitempty"`
// Address of this server, suitable for a client that matches the clientNetwork if specified.
// This can be a hostname, hostname:port, IP or IP:port.
ServerAddress string `json:"serverAddress,omitempty"`
// CABundle contains the certificate authority information.
// +optional
CABundle []byte `json:"caBundle,omitempty"`
}
// ClusterSpec defines the desired state of Cluster
type ClusterSpec struct {
// UID of the kube-system namespace
ClusterID types.UID `json:"clusterID"`
// AuthInfo holds information that describes how a client can get
// credentials to access the cluster.
AuthInfo AuthInfo `json:"authInfo,omitempty"`
// KubernetesAPIEndpoints represents the endpoints of the API server for this
// cluster.
// +optional
KubernetesAPIEndpoints []KubernetesAPIEndpoint `json:"kubernetesApiEndpoints,omitempty"`
}
// ClusterStatus defines the observed state of Cluster
type ClusterStatus struct {
State ClusterState `json:"state,omitempty"`
Message string `json:"message,omitempty"`
Type ClusterType `json:"type,omitempty"`
Leader bool `json:"leader,omitempty"`
// Metadata
ClusterMetadata `json:",inline"`
// Conditions contains the different condition statuses for this cluster.
Conditions []ClusterCondition `json:"conditions,omitempty"`
}
func (s ClusterStatus) Reset() ClusterStatus {
return ClusterStatus{
State: ClusterStateReady,
Type: ClusterTypePeer,
ClusterMetadata: ClusterMetadata{},
Conditions: s.Conditions,
}
}
type ClusterType string
const (
ClusterTypeLocal ClusterType = "Local"
ClusterTypePeer ClusterType = "Peer"
)
type ClusterState string
const (
ClusterStateReady ClusterState = "Ready"
ClusterStateFailed ClusterState = "Failed"
ClusterStateDisabled ClusterState = "Disabled"
ClusterStateMissingAuthInfo ClusterState = "MissingAuthInfo"
ClusterStateInvalidAuthInfo ClusterState = "InvalidAuthInfo"
)
// ClusterConditionType marks the kind of cluster condition being reported.
type ClusterConditionType string
const (
ClusterConditionTypeLocalCluster ClusterConditionType = "LocalCluster"
ClusterConditionTypeLocalConflict ClusterConditionType = "LocalConflict"
ClusterConditionTypeClusterMetadata ClusterConditionType = "ClusterMetadataSet"
ClusterConditionTypeReady ClusterConditionType = "Ready"
ClusterConditionTypeClustersSynced ClusterConditionType = "ClustersSynced"
)
// ClusterCondition contains condition information for a cluster.
type ClusterCondition struct {
// Type is the type of the cluster condition.
Type ClusterConditionType `json:"type" protobuf:"bytes,1,opt,name=type,casttype=ClusterConditionType"`
// Status is the status of the condition. One of True, False, Unknown.
Status corev1.ConditionStatus `json:"status" protobuf:"bytes,2,opt,name=status,casttype=ConditionStatus"`
// LastHeartbeatTime is the last time this condition was updated.
// +optional
LastHeartbeatTime metav1.Time `json:"lastHeartbeatTime,omitempty" protobuf:"bytes,3,opt,name=lastHeartbeatTime"`
// LastTransitionTime is the last time the condition changed from one status to another.
// +optional
LastTransitionTime metav1.Time `json:"lastTransitionTime,omitempty" protobuf:"bytes,4,opt,name=lastTransitionTime"`
// Reason is a (brief) reason for the condition's last status change.
// +optional
Reason string `json:"reason,omitempty" protobuf:"bytes,5,opt,name=reason"`
// Message is a human-readable message indicating details about the last status change.
// +optional
Message string `json:"message,omitempty" protobuf:"bytes,6,opt,name=message"`
// Internally used flag to mark whether a true status should be handled as a failure
TrueIsFailure bool `json:"-"`
}
// +kubebuilder:object:root=true
// Cluster is the Schema for the clusters API
// +kubebuilder:subresource:status
// +kubebuilder:resource:path=clusters,scope=Cluster
// +kubebuilder:printcolumn:name="ID",type="string",JSONPath=".spec.clusterID",priority=1
// +kubebuilder:printcolumn:name="Status",type="string",JSONPath=".status.state"
// +kubebuilder:printcolumn:name="Type",type="string",JSONPath=".status.type"
// +kubebuilder:printcolumn:name="Synced",type="string",JSONPath=".status.conditions[?(@.type==\"ClustersSynced\")].status"
// +kubebuilder:printcolumn:name="Version",type="string",JSONPath=".status.version",priority=1
// +kubebuilder:printcolumn:name="Provider",type="string",JSONPath=".status.provider",priority=1
// +kubebuilder:printcolumn:name="Distribution",type="string",JSONPath=".status.distribution",priority=1
// +kubebuilder:printcolumn:name="Region",type="string",JSONPath=".status.locality.region",priority=1
// +kubebuilder:printcolumn:name="Status Message",type="string",JSONPath=".status.message",priority=1
// +kubebuilder:printcolumn:name="Sync Message",type="string",JSONPath=".status.conditions[?(@.type==\"ClustersSynced\")].message",priority=1
type Cluster struct {
metav1.TypeMeta `json:",inline"`
metav1.ObjectMeta `json:"metadata,omitempty"`
Spec ClusterSpec `json:"spec,omitempty"`
Status ClusterStatus `json:"status,omitempty"`
}
// +kubebuilder:object:root=true
// ClusterList contains a list of Cluster
type ClusterList struct {
metav1.TypeMeta `json:",inline"`
metav1.ListMeta `json:"metadata,omitempty"`
Items []Cluster `json:"items"`
}
func init() {
SchemeBuilder.Register(&Cluster{}, &ClusterList{})
}