mirror of
https://github.com/tailscale/tailscale.git
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3099323976
Adds a new TailscaleProxyReady condition type for use in corev1.Service conditions. Also switch our CRDs to use metav1.Condition instead of ConnectorCondition. The Go structs are seralized identically, but it updates some descriptions and validation rules. Update k8s controller-tools and controller-runtime deps to fix the documentation generation for metav1.Condition so that it excludes comments and TODOs. Stop expecting the fake client to populate TypeMeta in tests. See kubernetes-sigs/controller-runtime#2633 for details of the change. Finally, make some minor improvements to validation for service hostnames. Fixes #12216 Co-authored-by: Irbe Krumina <irbe@tailscale.com> Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
182 lines
9.2 KiB
YAML
182 lines
9.2 KiB
YAML
apiVersion: apiextensions.k8s.io/v1
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kind: CustomResourceDefinition
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metadata:
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annotations:
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controller-gen.kubebuilder.io/version: v0.15.1-0.20240618033008-7824932b0cab
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name: dnsconfigs.tailscale.com
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spec:
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group: tailscale.com
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names:
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kind: DNSConfig
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listKind: DNSConfigList
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plural: dnsconfigs
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shortNames:
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- dc
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singular: dnsconfig
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scope: Cluster
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versions:
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- additionalPrinterColumns:
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- description: Service IP address of the nameserver
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jsonPath: .status.nameserver.ip
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name: NameserverIP
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type: string
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name: v1alpha1
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schema:
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openAPIV3Schema:
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description: |-
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DNSConfig can be deployed to cluster to make a subset of Tailscale MagicDNS
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names resolvable by cluster workloads. Use this if: A) you need to refer to
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tailnet services, exposed to cluster via Tailscale Kubernetes operator egress
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proxies by the MagicDNS names of those tailnet services (usually because the
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services run over HTTPS)
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B) you have exposed a cluster workload to the tailnet using Tailscale Ingress
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and you also want to refer to the workload from within the cluster over the
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Ingress's MagicDNS name (usually because you have some callback component
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that needs to use the same URL as that used by a non-cluster client on
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tailnet).
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When a DNSConfig is applied to a cluster, Tailscale Kubernetes operator will
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deploy a nameserver for ts.net DNS names and automatically populate it with records
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for any Tailscale egress or Ingress proxies deployed to that cluster.
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Currently you must manually update your cluster DNS configuration to add the
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IP address of the deployed nameserver as a ts.net stub nameserver.
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Instructions for how to do it:
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https://kubernetes.io/docs/tasks/administer-cluster/dns-custom-nameservers/#configuration-of-stub-domain-and-upstream-nameserver-using-coredns (for CoreDNS),
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https://cloud.google.com/kubernetes-engine/docs/how-to/kube-dns (for kube-dns).
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Tailscale Kubernetes operator will write the address of a Service fronting
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the nameserver to dsnconfig.status.nameserver.ip.
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DNSConfig is a singleton - you must not create more than one.
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NB: if you want cluster workloads to be able to refer to Tailscale Ingress
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using its MagicDNS name, you must also annotate the Ingress resource with
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tailscale.com/experimental-forward-cluster-traffic-via-ingress annotation to
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ensure that the proxy created for the Ingress listens on its Pod IP address.
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NB: Clusters where Pods get assigned IPv6 addresses only are currently not supported.
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type: object
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required:
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- spec
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properties:
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apiVersion:
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description: |-
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APIVersion defines the versioned schema of this representation of an object.
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Servers should convert recognized schemas to the latest internal value, and
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may reject unrecognized values.
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More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources
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type: string
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kind:
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description: |-
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Kind is a string value representing the REST resource this object represents.
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Servers may infer this from the endpoint the client submits requests to.
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Cannot be updated.
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In CamelCase.
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More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
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type: string
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metadata:
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type: object
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spec:
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description: |-
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Spec describes the desired DNS configuration.
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More info:
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https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#spec-and-status
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type: object
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required:
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- nameserver
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properties:
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nameserver:
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description: |-
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Configuration for a nameserver that can resolve ts.net DNS names
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associated with in-cluster proxies for Tailscale egress Services and
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Tailscale Ingresses. The operator will always deploy this nameserver
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when a DNSConfig is applied.
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type: object
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properties:
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image:
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description: Nameserver image.
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type: object
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properties:
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repo:
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description: Repo defaults to tailscale/k8s-nameserver.
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type: string
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tag:
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description: Tag defaults to operator's own tag.
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type: string
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status:
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description: |-
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Status describes the status of the DNSConfig. This is set
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and managed by the Tailscale operator.
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type: object
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properties:
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conditions:
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type: array
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items:
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description: Condition contains details for one aspect of the current state of this API Resource.
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type: object
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required:
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- lastTransitionTime
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- message
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- reason
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- status
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- type
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properties:
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lastTransitionTime:
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description: |-
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lastTransitionTime is the last time the condition transitioned from one status to another.
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This should be when the underlying condition changed. If that is not known, then using the time when the API field changed is acceptable.
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type: string
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format: date-time
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message:
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description: |-
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message is a human readable message indicating details about the transition.
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This may be an empty string.
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type: string
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maxLength: 32768
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observedGeneration:
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description: |-
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observedGeneration represents the .metadata.generation that the condition was set based upon.
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For instance, if .metadata.generation is currently 12, but the .status.conditions[x].observedGeneration is 9, the condition is out of date
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with respect to the current state of the instance.
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type: integer
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format: int64
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minimum: 0
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reason:
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description: |-
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reason contains a programmatic identifier indicating the reason for the condition's last transition.
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Producers of specific condition types may define expected values and meanings for this field,
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and whether the values are considered a guaranteed API.
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The value should be a CamelCase string.
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This field may not be empty.
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type: string
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maxLength: 1024
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minLength: 1
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pattern: ^[A-Za-z]([A-Za-z0-9_,:]*[A-Za-z0-9_])?$
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status:
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description: status of the condition, one of True, False, Unknown.
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type: string
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enum:
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- "True"
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- "False"
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- Unknown
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type:
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description: type of condition in CamelCase or in foo.example.com/CamelCase.
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type: string
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maxLength: 316
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pattern: ^([a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*/)?(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])$
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x-kubernetes-list-map-keys:
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- type
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x-kubernetes-list-type: map
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nameserver:
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description: Nameserver describes the status of nameserver cluster resources.
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type: object
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properties:
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ip:
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description: |-
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IP is the ClusterIP of the Service fronting the deployed ts.net nameserver.
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Currently you must manually update your cluster DNS config to add
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this address as a stub nameserver for ts.net for cluster workloads to be
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able to resolve MagicDNS names associated with egress or Ingress
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proxies.
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The IP address will change if you delete and recreate the DNSConfig.
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type: string
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served: true
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storage: true
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subresources:
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status: {}
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