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node.go
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node.go
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package node
import (
"fmt"
"github.com/rancher/norman/api/access"
"github.com/rancher/norman/httperror"
"github.com/rancher/norman/types"
"github.com/rancher/norman/types/convert"
"github.com/rancher/norman/types/values"
"github.com/rancher/types/apis/management.cattle.io/v3"
managementschema "github.com/rancher/types/apis/management.cattle.io/v3/schema"
"github.com/rancher/types/client/management/v3"
apierrors "k8s.io/apimachinery/pkg/api/errors"
)
// Formatter for Node
func Formatter(apiContext *types.APIContext, resource *types.RawResource) {
etcd := convert.ToBool(resource.Values[client.NodeFieldEtcd])
cp := convert.ToBool(resource.Values[client.NodeFieldControlPlane])
worker := convert.ToBool(resource.Values[client.NodeFieldWorker])
if !etcd && !cp && !worker {
resource.Values[client.NodeFieldWorker] = true
}
// add nodeConfig link
if err := apiContext.AccessControl.CanDo(v3.NodeDriverGroupVersionKind.Group, v3.NodeDriverResource.Name, "update", apiContext, resource.Values, apiContext.Schema); err == nil {
resource.Links["nodeConfig"] = apiContext.URLBuilder.Link("nodeConfig", resource)
}
// remove link
nodeTemplateID := resource.Values["nodeTemplateId"]
customConfig := resource.Values["customConfig"]
if nodeTemplateID == nil {
delete(resource.Links, "nodeConfig")
}
if nodeTemplateID == nil && customConfig == nil {
delete(resource.Links, "remove")
}
if convert.ToBool(resource.Values["unschedulable"]) {
resource.AddAction(apiContext, "uncordon")
} else {
resource.AddAction(apiContext, "cordon")
}
}
type ActionWrapper struct{}
func (a ActionWrapper) ActionHandler(actionName string, action *types.Action, apiContext *types.APIContext) error {
switch actionName {
case "cordon":
return cordonUncordonNode(actionName, apiContext, true)
case "uncordon":
return cordonUncordonNode(actionName, apiContext, false)
}
return nil
}
func cordonUncordonNode(actionName string, apiContext *types.APIContext, cordon bool) error {
var node map[string]interface{}
if err := access.ByID(apiContext, apiContext.Version, apiContext.Type, apiContext.ID, &node); err != nil {
return httperror.NewAPIError(httperror.InvalidReference, "Error accessing node")
}
schema := apiContext.Schemas.Schema(&managementschema.Version, client.NodeType)
unschedulable := convert.ToBool(values.GetValueN(node, "unschedulable"))
if cordon == unschedulable {
return httperror.NewAPIError(httperror.InvalidAction, fmt.Sprintf("Node %s already %sed", apiContext.ID, actionName))
}
values.PutValue(node, convert.ToString(!unschedulable), "desiredNodeUnschedulable")
if _, err := schema.Store.Update(apiContext, schema, node, apiContext.ID); err != nil && apierrors.IsNotFound(err) {
return httperror.NewAPIError(httperror.ServerError, fmt.Sprintf("Error updating node %s by %s : %s", apiContext.ID, actionName, err.Error()))
}
return nil
}