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kube_node_remove.go
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kube_node_remove.go
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package op
import (
"context"
"strings"
"github.com/cybozu-go/cke"
corev1 "k8s.io/api/core/v1"
)
type kubeNodeRemove struct {
apiserver *cke.Node
nodes []*corev1.Node
done bool
}
// KubeNodeRemoveOp removes k8s Node resources.
func KubeNodeRemoveOp(apiserver *cke.Node, nodes []*corev1.Node) cke.Operator {
return &kubeNodeRemove{apiserver: apiserver, nodes: nodes}
}
func (o *kubeNodeRemove) Name() string {
return "remove-node"
}
func (o *kubeNodeRemove) NextCommand() cke.Commander {
if o.done {
return nil
}
o.done = true
return nodeRemoveCommand{o.apiserver, o.nodes}
}
type nodeRemoveCommand struct {
apiserver *cke.Node
nodes []*corev1.Node
}
func (c nodeRemoveCommand) Run(ctx context.Context, inf cke.Infrastructure) error {
cs, err := inf.K8sClient(ctx, c.apiserver)
if err != nil {
return err
}
nodesAPI := cs.CoreV1().Nodes()
for _, n := range c.nodes {
err := nodesAPI.Delete(n.Name, nil)
if err != nil {
return err
}
}
return nil
}
func (c nodeRemoveCommand) Command() cke.Command {
names := make([]string, len(c.nodes))
for i, n := range c.nodes {
names[i] = n.Name
}
return cke.Command{
Name: "removeNode",
Target: strings.Join(names, ","),
}
}