add new command delete
Signed-off-by: zhzhuang-zju <m17799853869@163.com>
This commit is contained in:
zhzhuang-zju
parent
19d1146c35
commit
764bf58f1a
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@ -0,0 +1,96 @@
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/*
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Copyright 2024 The Karmada 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 delete
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import (
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"fmt"
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"github.com/spf13/cobra"
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"k8s.io/cli-runtime/pkg/genericiooptions"
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kubectldelete "k8s.io/kubectl/pkg/cmd/delete"
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"k8s.io/kubectl/pkg/util/templates"
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"github.com/karmada-io/karmada/pkg/karmadactl/util"
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)
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var (
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deleteLong = templates.LongDesc(`
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Delete resources by file names, stdin, resources and names, or by resources and label selector.
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JSON and YAML formats are accepted. Only one type of argument may be specified: file names,
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resources and names, or resources and label selector.
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Some resources, such as pods, support graceful deletion. These resources define a default period
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before they are forcibly terminated (the grace period) but you may override that value with
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the --grace-period flag, or pass --now to set a grace-period of 1. Because these resources often
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represent entities in the cluster, deletion may not be acknowledged immediately. If the node
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hosting a pod is down or cannot reach the API server, termination may take significantly longer
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than the grace period. To force delete a resource, you must specify the --force flag.
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Note: only a subset of resources support graceful deletion. In absence of the support,
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the --grace-period flag is ignored.
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IMPORTANT: Force deleting pods does not wait for confirmation that the pod's processes have been
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terminated, which can leave those processes running until the node detects the deletion and
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completes graceful deletion. If your processes use shared storage or talk to a remote API and
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depend on the name of the pod to identify themselves, force deleting those pods may result in
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multiple processes running on different machines using the same identification which may lead
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to data corruption or inconsistency. Only force delete pods when you are sure the pod is
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terminated, or if your application can tolerate multiple copies of the same pod running at once.
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Also, if you force delete pods, the scheduler may place new pods on those nodes before the node
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has released those resources and causing those pods to be evicted immediately.
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Note that the delete command does NOT do resource version checks, so if someone submits an
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update to a resource right when you submit a delete, their update will be lost along with the
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rest of the resource.
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After a CustomResourceDefinition is deleted, invalidation of discovery cache may take up
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to 6 hours. If you don't want to wait, you might want to run "[1]%s api-resources" to refresh
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the discovery cache.`)
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deleteExample = templates.Examples(`
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# Delete a propagationpolicy using the type and name specified in propagationpolicy.json
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[1]%s delete -f ./propagationpolicy.json
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# Delete resources from a directory containing kustomization.yaml - e.g. dir/kustomization.yaml
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[1]%s delete -k dir
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# Delete resources from all files that end with '.json'
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[1]%s delete -f '*.json'
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# Delete a propagationpolicy based on the type and name in the JSON passed into stdin
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cat propagationpolicy.json | [1]%s delete -f -
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# Delete propagationpolicies and services with same names "baz" and "foo"
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[1]%s delete propagationpolicy,service baz foo
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# Delete propagationpolicies and services with label name=myLabel
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[1]%s delete propagationpolicies,services -l name=myLabel
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# Delete a propagationpolicy with minimal delay
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[1]%s delete propagationpolicy foo --now
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# Force delete a propagationpolicy on a dead node
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[1]%s delete propagationpolicy foo --force
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# Delete all propagationpolicies
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[1]%s delete propagationpolicies --all`)
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)
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// NewCmdDelete returns new initialized instance of delete sub command
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func NewCmdDelete(f util.Factory, parentCommnd string, ioStreams genericiooptions.IOStreams) *cobra.Command {
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cmd := kubectldelete.NewCmdDelete(f, ioStreams)
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cmd.Long = fmt.Sprintf(deleteLong, parentCommnd)
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cmd.Example = fmt.Sprintf(deleteExample, parentCommnd)
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return cmd
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}
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@ -36,6 +36,7 @@ import (
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"github.com/karmada-io/karmada/pkg/karmadactl/cordon"
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"github.com/karmada-io/karmada/pkg/karmadactl/create"
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"github.com/karmada-io/karmada/pkg/karmadactl/deinit"
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karmadactldelete "github.com/karmada-io/karmada/pkg/karmadactl/delete"
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"github.com/karmada-io/karmada/pkg/karmadactl/describe"
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"github.com/karmada-io/karmada/pkg/karmadactl/exec"
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"github.com/karmada-io/karmada/pkg/karmadactl/explain"
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@ -93,6 +94,7 @@ func NewKarmadaCtlCommand(cmdUse, parentCommand string) *cobra.Command {
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explain.NewCmdExplain(f, parentCommand, ioStreams),
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get.NewCmdGet(f, parentCommand, ioStreams),
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create.NewCmdCreate(f, parentCommand, ioStreams),
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karmadactldelete.NewCmdDelete(f, parentCommand, ioStreams),
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},
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},
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{
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