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156 lines
5.8 KiB
Go
156 lines
5.8 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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//go:build !plan9
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package v1alpha1
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import (
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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// Code comments on these types should be treated as user facing documentation-
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// they will appear on the Connector CRD i.e if someone runs kubectl explain connector.
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var ConnectorKind = "Connector"
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// +kubebuilder:object:root=true
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// +kubebuilder:subresource:status
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// +kubebuilder:resource:scope=Cluster,shortName=cn
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// +kubebuilder:printcolumn:name="SubnetRoutes",type="string",JSONPath=`.status.subnetRouter.routes`,description="Cluster CIDR ranges exposed to tailnet via subnet router"
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// +kubebuilder:printcolumn:name="Status",type="string",JSONPath=`.status.conditions[?(@.type == "ConnectorReady")].reason`,description="Status of the components deployed by the connector"
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type Connector struct {
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metav1.TypeMeta `json:",inline"`
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metav1.ObjectMeta `json:"metadata,omitempty"`
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// Desired state of the Connector resource.
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Spec ConnectorSpec `json:"spec"`
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// Status of the Connector. This is set and managed by the Tailscale operator.
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// +optional
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Status ConnectorStatus `json:"status"`
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}
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// +kubebuilder:object:root=true
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type ConnectorList struct {
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metav1.TypeMeta `json:",inline"`
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metav1.ListMeta `json:"metadata"`
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Items []Connector `json:"items"`
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}
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// ConnectorSpec defines the desired state of a ConnectorSpec.
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type ConnectorSpec struct {
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// SubnetRouter configures a Tailscale subnet router to be deployed in
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// the cluster. If unset no subnet router will be deployed.
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// https://tailscale.com/kb/1019/subnets/
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SubnetRouter *SubnetRouter `json:"subnetRouter"`
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}
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// SubnetRouter describes a subnet router.
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// +kubebuilder:validation:XValidation:rule="has(self.tags) == has(oldSelf.tags)",message="Subnetrouter tags cannot be changed. Delete and redeploy the Connector if you need to change it."
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type SubnetRouter struct {
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// Routes refer to in-cluster CIDRs that the subnet router should make
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// available. Route values must be strings that represent a valid IPv4
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// or IPv6 CIDR range. Values can be Tailscale 4via6 subnet routes.
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// https://tailscale.com/kb/1201/4via6-subnets/
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Routes []Route `json:"routes"`
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// Tags that the Tailscale node will be tagged with. If you want the
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// subnet router to be autoapproved, you can configure Tailscale ACLs to
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// autoapprove the subnetrouter's CIDRs for these tags.
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// See https://tailscale.com/kb/1018/acls/#auto-approvers-for-routes-and-exit-nodes
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// Defaults to tag:k8s.
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// If you specify custom tags here, you must also make tag:k8s-operator owner of the custom tag.
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// See https://tailscale.com/kb/1236/kubernetes-operator/#setting-up-the-kubernetes-operator.
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// Tags cannot be changed once a Connector has been created.
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// Tag values must be in form ^tag:[a-zA-Z][a-zA-Z0-9-]*$.
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// +optional
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Tags []Tag `json:"tags,omitempty"`
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// Hostname is the tailnet hostname that should be assigned to the
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// subnet router node. If unset hostname is defaulted to <connector
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// name>-subnetrouter. Hostname can contain lower case letters, numbers
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// and dashes, it must not start or end with a dash and must be between
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// 2 and 63 characters long.
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// +optional
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Hostname Hostname `json:"hostname,omitempty"`
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}
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// +kubebuilder:validation:Type=string
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// +kubebuilder:validation:Format=cidr
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type Route string
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// +kubebuilder:validation:Type=string
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// +kubebuilder:validation:Pattern=`^tag:[a-zA-Z][a-zA-Z0-9-]*$`
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type Tag string
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// +kubebuilder:validation:Type=string
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// +kubebuilder:validation:Pattern=`^[a-z0-9][a-z0-9-]{0,61}[a-z0-9]$`
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type Hostname string
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// ConnectorStatus defines the observed state of the Connector.
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type ConnectorStatus struct {
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// List of status conditions to indicate the status of the Connector.
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// Known condition types are `ConnectorReady`.
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// +listType=map
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// +listMapKey=type
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// +optional
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Conditions []ConnectorCondition `json:"conditions"`
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// SubnetRouter status is the current status of a subnet router
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// +optional
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SubnetRouter *SubnetRouterStatus `json:"subnetRouter"`
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}
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// SubnetRouter status is the current status of a subnet router if deployed
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type SubnetRouterStatus struct {
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// Routes are the CIDRs currently exposed via subnet router
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Routes string `json:"routes"`
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// Ready is the ready status of the subnet router
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Ready metav1.ConditionStatus `json:"ready"`
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// Reason is the reason for the subnet router status
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Reason string `json:"reason"`
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// Message is a more verbose reason for the current subnet router status
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Message string `json:"message"`
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}
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// ConnectorCondition contains condition information for a Connector.
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type ConnectorCondition struct {
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// Type of the condition, known values are (`SubnetRouterReady`).
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Type ConnectorConditionType `json:"type"`
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// Status of the condition, one of ('True', 'False', 'Unknown').
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Status metav1.ConditionStatus `json:"status"`
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// LastTransitionTime is the timestamp corresponding to the last status
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// change of this condition.
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// +optional
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LastTransitionTime *metav1.Time `json:"lastTransitionTime,omitempty"`
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// Reason is a brief machine readable explanation for the condition's last
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// transition.
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// +optional
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Reason string `json:"reason,omitempty"`
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// Message is a human readable description of the details of the last
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// transition, complementing reason.
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// +optional
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Message string `json:"message,omitempty"`
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// If set, this represents the .metadata.generation that the condition was
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// set based upon.
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// For instance, if .metadata.generation is currently 12, but the
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// .status.condition[x].observedGeneration is 9, the condition is out of date
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// with respect to the current state of the Connector.
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// +optional
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ObservedGeneration int64 `json:"observedGeneration,omitempty"`
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}
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// ConnectorConditionType represents a Connector condition type
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type ConnectorConditionType string
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const (
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ConnectorReady ConnectorConditionType = `ConnectorReady`
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)
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