mirror of https://github.com/kubernetes/kops.git
104 lines
2.8 KiB
Go
104 lines
2.8 KiB
Go
/*
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Copyright 2021 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package commands
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import (
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"context"
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"fmt"
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"io"
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"strings"
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"github.com/spf13/cobra"
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"k8s.io/apimachinery/pkg/util/validation/field"
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"k8s.io/kops/cmd/kops/util"
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api "k8s.io/kops/pkg/apis/kops"
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"k8s.io/kops/pkg/featureflag"
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"k8s.io/kops/util/pkg/reflectutils"
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)
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// UnsetInstanceGroupOptions contains the options for unsetting configuration on an
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// instance group.
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type UnsetInstanceGroupOptions struct {
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Fields []string
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ClusterName string
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InstanceGroupName string
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}
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// RunUnsetInstancegroup implements the unset instancegroup command logic.
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func RunUnsetInstancegroup(ctx context.Context, f *util.Factory, cmd *cobra.Command, out io.Writer, options *UnsetInstanceGroupOptions) error {
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if !featureflag.SpecOverrideFlag.Enabled() {
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return fmt.Errorf("unset instancegroup is currently feature gated; set `export KOPS_FEATURE_FLAGS=SpecOverrideFlag`")
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}
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if options.ClusterName == "" {
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return field.Required(field.NewPath("clusterName"), "Cluster name is required")
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}
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if options.InstanceGroupName == "" {
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return field.Required(field.NewPath("instancegroupName"), "Instance Group name is required")
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}
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clientset, err := f.Clientset()
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if err != nil {
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return err
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}
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cluster, err := clientset.GetCluster(ctx, options.ClusterName)
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if err != nil {
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return err
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}
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instanceGroups, err := ReadAllInstanceGroups(ctx, clientset, cluster)
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if err != nil {
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return err
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}
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var instanceGroupToUpdate *api.InstanceGroup
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for _, instanceGroup := range instanceGroups {
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if instanceGroup.GetName() == options.InstanceGroupName {
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instanceGroupToUpdate = instanceGroup
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}
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}
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if instanceGroupToUpdate == nil {
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return fmt.Errorf("unable to find instance group with name %q", options.InstanceGroupName)
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}
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err = UnsetInstancegroupFields(options.Fields, instanceGroupToUpdate)
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if err != nil {
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return err
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}
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err = UpdateInstanceGroup(ctx, clientset, cluster, instanceGroups, instanceGroupToUpdate)
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if err != nil {
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return err
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}
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return nil
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}
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// UnsetInstancegroupFields sets field values in the instance group.
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func UnsetInstancegroupFields(fields []string, instanceGroup *api.InstanceGroup) error {
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for _, field := range fields {
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key := strings.TrimPrefix(field, "instancegroup.")
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if err := reflectutils.Unset(instanceGroup, key); err != nil {
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return err
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}
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}
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return nil
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}
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