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update_configmap.go
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update_configmap.go
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package nodedns
import (
"context"
"github.com/cybozu-go/cke"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
type updateConfigMapOp struct {
apiserver *cke.Node
configMap *corev1.ConfigMap
finished bool
}
// UpdateConfigMapOp returns an Operator to update unbound as Node local resolver.
func UpdateConfigMapOp(apiserver *cke.Node, configMap *corev1.ConfigMap) cke.Operator {
return &updateConfigMapOp{
apiserver: apiserver,
configMap: configMap,
}
}
func (o *updateConfigMapOp) Name() string {
return "update-node-dns-configmap"
}
func (o *updateConfigMapOp) NextCommand() cke.Commander {
if o.finished {
return nil
}
o.finished = true
return updateConfigMapCommand{o.apiserver, o.configMap}
}
func (o *updateConfigMapOp) Targets() []string {
return []string{
o.apiserver.Address,
}
}
type updateConfigMapCommand struct {
apiserver *cke.Node
configMap *corev1.ConfigMap
}
func (c updateConfigMapCommand) Run(ctx context.Context, inf cke.Infrastructure, _ string) error {
cs, err := inf.K8sClient(ctx, c.apiserver)
if err != nil {
return err
}
configs := cs.CoreV1().ConfigMaps("kube-system")
_, err = configs.Update(ctx, c.configMap, metav1.UpdateOptions{})
return err
}
func (c updateConfigMapCommand) Command() cke.Command {
return cke.Command{
Name: "updateConfigMapCommand",
Target: "kube-system",
}
}