talos/pkg/resources/k8s/nodename.go
Andrey Smirnov 3aae94e530 feat: provide Kubernetes nodename as a COSI resource
This changes the way Kubernetes nodename is computed: it is set by the
controller based on the hostname and machine configuration, and pulled
from the resource when needed.

Kubelet client now also uses nodename to fix the certifcate mismatch
issue on AWS.

Signed-off-by: Andrey Smirnov <smirnov.andrey@gmail.com>
2021-06-18 19:58:19 +03:00

85 lines
2.1 KiB
Go

// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package k8s
import (
"fmt"
"github.com/cosi-project/runtime/pkg/resource"
"github.com/cosi-project/runtime/pkg/resource/meta"
)
// NodenameType is type of Nodename resource.
const NodenameType = resource.Type("Nodenames.kubernetes.talos.dev")
// NodenameID is a singleton resource ID for Nodename.
const NodenameID = resource.ID("nodename")
// Nodename resource holds Kubernetes nodename.
type Nodename struct {
md resource.Metadata
spec NodenameSpec
}
// NodenameSpec describes Kubernetes nodename.
type NodenameSpec struct {
Nodename string `yaml:"nodename"`
HostnameVersion string `yaml:"hostnameVersion"`
}
// NewNodename initializes a Nodename resource.
func NewNodename(namespace resource.Namespace, id resource.ID) *Nodename {
r := &Nodename{
md: resource.NewMetadata(namespace, NodenameType, id, resource.VersionUndefined),
spec: NodenameSpec{},
}
r.md.BumpVersion()
return r
}
// Metadata implements resource.Resource.
func (r *Nodename) Metadata() *resource.Metadata {
return &r.md
}
// Spec implements resource.Resource.
func (r *Nodename) Spec() interface{} {
return r.spec
}
func (r *Nodename) String() string {
return fmt.Sprintf("k8s.Nodename(%q)", r.md.ID())
}
// DeepCopy implements resource.Resource.
func (r *Nodename) DeepCopy() resource.Resource {
return &Nodename{
md: r.md,
spec: r.spec,
}
}
// ResourceDefinition implements meta.ResourceDefinitionProvider interface.
func (r *Nodename) ResourceDefinition() meta.ResourceDefinitionSpec {
return meta.ResourceDefinitionSpec{
Type: NodenameType,
Aliases: []resource.Type{},
DefaultNamespace: ControlPlaneNamespaceName,
PrintColumns: []meta.PrintColumn{
{
Name: "Nodename",
JSONPath: "{.nodename}",
},
},
}
}
// TypedSpec allows to access the Spec with the proper type.
func (r *Nodename) TypedSpec() *NodenameSpec {
return &r.spec
}