tailscale/cmd/k8s-operator/deploy/crds/tailscale.com_dnsconfigs.yaml
Irbe Krumina 19b31ac9a6
cmd/{k8s-operator,k8s-nameserver},k8s-operator: update nameserver config with records for ingress/egress proxies (#11019)
cmd/k8s-operator: optionally update dnsrecords Configmap with DNS records for proxies.

This commit adds functionality to automatically populate
DNS records for the in-cluster ts.net nameserver
to allow cluster workloads to resolve MagicDNS names
associated with operator's proxies.

The records are created as follows:
* For tailscale Ingress proxies there will be
a record mapping the MagicDNS name of the Ingress
device and each proxy Pod's IP address.
* For cluster egress proxies, configured via
tailscale.com/tailnet-fqdn annotation, there will be
a record for each proxy Pod, mapping
the MagicDNS name of the exposed
tailnet workload to the proxy Pod's IP.

No records will be created for any other proxy types.
Records will only be created if users have configured
the operator to deploy an in-cluster ts.net nameserver
by applying tailscale.com/v1alpha1.DNSConfig.

It is user's responsibility to add the ts.net nameserver
as a stub nameserver for ts.net DNS names.
https://kubernetes.io/docs/tasks/administer-cluster/dns-custom-nameservers/#configuration-of-stub-domain-and-upstream-nameserver-using-coredns
https://cloud.google.com/kubernetes-engine/docs/how-to/kube-dns#upstream_nameservers

See also https://github.com/tailscale/tailscale/pull/11017

Updates tailscale/tailscale#10499

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
2024-05-02 17:29:46 +01:00

97 lines
4.0 KiB
YAML

apiVersion: apiextensions.k8s.io/v1
kind: CustomResourceDefinition
metadata:
annotations:
controller-gen.kubebuilder.io/version: v0.13.0
name: dnsconfigs.tailscale.com
spec:
group: tailscale.com
names:
kind: DNSConfig
listKind: DNSConfigList
plural: dnsconfigs
shortNames:
- dc
singular: dnsconfig
scope: Cluster
versions:
- additionalPrinterColumns:
- description: Service IP address of the nameserver
jsonPath: .status.nameserver.ip
name: NameserverIP
type: string
name: v1alpha1
schema:
openAPIV3Schema:
type: object
required:
- spec
properties:
apiVersion:
description: 'APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources'
type: string
kind:
description: 'Kind is a string value representing the REST resource this object represents. Servers may infer this from the endpoint the client submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds'
type: string
metadata:
type: object
spec:
type: object
required:
- nameserver
properties:
nameserver:
type: object
properties:
image:
type: object
properties:
repo:
type: string
tag:
type: string
status:
type: object
properties:
conditions:
type: array
items:
description: ConnectorCondition contains condition information for a Connector.
type: object
required:
- status
- type
properties:
lastTransitionTime:
description: LastTransitionTime is the timestamp corresponding to the last status change of this condition.
type: string
format: date-time
message:
description: Message is a human readable description of the details of the last transition, complementing reason.
type: string
observedGeneration:
description: If set, this represents the .metadata.generation that the condition was set based upon. For instance, if .metadata.generation is currently 12, but the .status.condition[x].observedGeneration is 9, the condition is out of date with respect to the current state of the Connector.
type: integer
format: int64
reason:
description: Reason is a brief machine readable explanation for the condition's last transition.
type: string
status:
description: Status of the condition, one of ('True', 'False', 'Unknown').
type: string
type:
description: Type of the condition, known values are (`SubnetRouterReady`).
type: string
x-kubernetes-list-map-keys:
- type
x-kubernetes-list-type: map
nameserver:
type: object
properties:
ip:
type: string
served: true
storage: true
subresources:
status: {}