mirror of
https://github.com/ceph/ceph-csi.git
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354 lines
11 KiB
Go
354 lines
11 KiB
Go
/*
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Copyright 2014 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 cmd
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import (
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"fmt"
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"io"
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"os"
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"runtime"
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"strings"
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"github.com/spf13/cobra"
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"net/url"
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"k8s.io/apimachinery/pkg/api/meta"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/kubernetes/pkg/kubectl"
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"k8s.io/kubernetes/pkg/kubectl/cmd/templates"
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cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
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"k8s.io/kubernetes/pkg/kubectl/cmd/util/editor"
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"k8s.io/kubernetes/pkg/kubectl/resource"
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"k8s.io/kubernetes/pkg/kubectl/util/i18n"
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)
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type CreateOptions struct {
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FilenameOptions resource.FilenameOptions
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Selector string
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EditBeforeCreate bool
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Raw string
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}
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var (
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createLong = templates.LongDesc(i18n.T(`
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Create a resource from a file or from stdin.
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JSON and YAML formats are accepted.`))
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createExample = templates.Examples(i18n.T(`
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# Create a pod using the data in pod.json.
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kubectl create -f ./pod.json
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# Create a pod based on the JSON passed into stdin.
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cat pod.json | kubectl create -f -
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# Edit the data in docker-registry.yaml in JSON using the v1 API format then create the resource using the edited data.
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kubectl create -f docker-registry.yaml --edit --output-version=v1 -o json`))
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)
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func NewCmdCreate(f cmdutil.Factory, out, errOut io.Writer) *cobra.Command {
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var options CreateOptions
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cmd := &cobra.Command{
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Use: "create -f FILENAME",
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Short: i18n.T("Create a resource from a file or from stdin."),
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Long: createLong,
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Example: createExample,
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Run: func(cmd *cobra.Command, args []string) {
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if cmdutil.IsFilenameSliceEmpty(options.FilenameOptions.Filenames) {
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defaultRunFunc := cmdutil.DefaultSubCommandRun(errOut)
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defaultRunFunc(cmd, args)
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return
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}
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cmdutil.CheckErr(options.ValidateArgs(cmd, args))
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cmdutil.CheckErr(RunCreate(f, cmd, out, errOut, &options))
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},
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}
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usage := "to use to create the resource"
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cmdutil.AddFilenameOptionFlags(cmd, &options.FilenameOptions, usage)
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cmd.MarkFlagRequired("filename")
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cmdutil.AddValidateFlags(cmd)
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cmdutil.AddPrinterFlags(cmd)
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cmd.Flags().BoolVar(&options.EditBeforeCreate, "edit", false, "Edit the API resource before creating")
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cmd.Flags().Bool("windows-line-endings", runtime.GOOS == "windows",
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"Only relevant if --edit=true. Defaults to the line ending native to your platform.")
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cmdutil.AddApplyAnnotationFlags(cmd)
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cmdutil.AddRecordFlag(cmd)
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cmdutil.AddDryRunFlag(cmd)
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cmdutil.AddInclude3rdPartyFlags(cmd)
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cmd.Flags().StringVarP(&options.Selector, "selector", "l", "", "Selector (label query) to filter on, supports '=', '==', and '!='.(e.g. -l key1=value1,key2=value2)")
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cmd.Flags().StringVar(&options.Raw, "raw", options.Raw, "Raw URI to POST to the server. Uses the transport specified by the kubeconfig file.")
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// create subcommands
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cmd.AddCommand(NewCmdCreateNamespace(f, out))
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cmd.AddCommand(NewCmdCreateQuota(f, out))
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cmd.AddCommand(NewCmdCreateSecret(f, out, errOut))
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cmd.AddCommand(NewCmdCreateConfigMap(f, out))
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cmd.AddCommand(NewCmdCreateServiceAccount(f, out))
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cmd.AddCommand(NewCmdCreateService(f, out, errOut))
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cmd.AddCommand(NewCmdCreateDeployment(f, out, errOut))
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cmd.AddCommand(NewCmdCreateClusterRole(f, out))
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cmd.AddCommand(NewCmdCreateClusterRoleBinding(f, out))
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cmd.AddCommand(NewCmdCreateRole(f, out))
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cmd.AddCommand(NewCmdCreateRoleBinding(f, out))
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cmd.AddCommand(NewCmdCreatePodDisruptionBudget(f, out))
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cmd.AddCommand(NewCmdCreatePriorityClass(f, out))
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return cmd
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}
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func (o *CreateOptions) ValidateArgs(cmd *cobra.Command, args []string) error {
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if len(args) != 0 {
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return cmdutil.UsageErrorf(cmd, "Unexpected args: %v", args)
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}
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if len(o.Raw) > 0 {
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if o.EditBeforeCreate {
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return cmdutil.UsageErrorf(cmd, "--raw and --edit are mutually exclusive")
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}
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if len(o.FilenameOptions.Filenames) != 1 {
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return cmdutil.UsageErrorf(cmd, "--raw can only use a single local file or stdin")
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}
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if strings.HasPrefix(o.FilenameOptions.Filenames[0], "http") {
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return cmdutil.UsageErrorf(cmd, "--raw cannot read from a url")
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}
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if o.FilenameOptions.Recursive {
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return cmdutil.UsageErrorf(cmd, "--raw and --recursive are mutually exclusive")
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}
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if len(o.Selector) > 0 {
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return cmdutil.UsageErrorf(cmd, "--raw and --selector (-l) are mutually exclusive")
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}
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if len(cmdutil.GetFlagString(cmd, "output")) > 0 {
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return cmdutil.UsageErrorf(cmd, "--raw and --output are mutually exclusive")
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}
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if _, err := url.ParseRequestURI(o.Raw); err != nil {
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return cmdutil.UsageErrorf(cmd, "--raw must be a valid URL path: %v", err)
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}
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}
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return nil
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}
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func RunCreate(f cmdutil.Factory, cmd *cobra.Command, out, errOut io.Writer, options *CreateOptions) error {
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// raw only makes sense for a single file resource multiple objects aren't likely to do what you want.
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// the validator enforces this, so
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if len(options.Raw) > 0 {
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restClient, err := f.RESTClient()
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if err != nil {
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return err
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}
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var data io.ReadCloser
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if options.FilenameOptions.Filenames[0] == "-" {
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data = os.Stdin
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} else {
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data, err = os.Open(options.FilenameOptions.Filenames[0])
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if err != nil {
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return err
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}
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}
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// TODO post content with stream. Right now it ignores body content
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bytes, err := restClient.Post().RequestURI(options.Raw).Body(data).DoRaw()
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if err != nil {
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return err
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}
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fmt.Fprintf(out, "%v", string(bytes))
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return nil
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}
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if options.EditBeforeCreate {
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return RunEditOnCreate(f, out, errOut, cmd, &options.FilenameOptions)
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}
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schema, err := f.Validator(cmdutil.GetFlagBool(cmd, "validate"))
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if err != nil {
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return err
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}
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cmdNamespace, enforceNamespace, err := f.DefaultNamespace()
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if err != nil {
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return err
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}
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r := f.NewBuilder().
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Unstructured().
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Schema(schema).
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ContinueOnError().
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NamespaceParam(cmdNamespace).DefaultNamespace().
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FilenameParam(enforceNamespace, &options.FilenameOptions).
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LabelSelectorParam(options.Selector).
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Flatten().
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Do()
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err = r.Err()
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if err != nil {
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return err
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}
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dryRun := cmdutil.GetFlagBool(cmd, "dry-run")
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output := cmdutil.GetFlagString(cmd, "output")
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mapper := r.Mapper().RESTMapper
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count := 0
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err = r.Visit(func(info *resource.Info, err error) error {
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if err != nil {
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return err
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}
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if err := kubectl.CreateOrUpdateAnnotation(cmdutil.GetFlagBool(cmd, cmdutil.ApplyAnnotationsFlag), info, f.JSONEncoder()); err != nil {
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return cmdutil.AddSourceToErr("creating", info.Source, err)
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}
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if cmdutil.ShouldRecord(cmd, info) {
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if err := cmdutil.RecordChangeCause(info.Object, f.Command(cmd, false)); err != nil {
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return cmdutil.AddSourceToErr("creating", info.Source, err)
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}
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}
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if !dryRun {
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if err := createAndRefresh(info); err != nil {
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return cmdutil.AddSourceToErr("creating", info.Source, err)
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}
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}
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count++
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shortOutput := output == "name"
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if len(output) > 0 && !shortOutput {
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return f.PrintResourceInfoForCommand(cmd, info, out)
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}
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if !shortOutput {
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f.PrintObjectSpecificMessage(info.Object, out)
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}
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f.PrintSuccess(mapper, shortOutput, out, info.Mapping.Resource, info.Name, dryRun, "created")
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return nil
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})
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if err != nil {
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return err
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}
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if count == 0 {
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return fmt.Errorf("no objects passed to create")
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}
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return nil
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}
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func RunEditOnCreate(f cmdutil.Factory, out, errOut io.Writer, cmd *cobra.Command, options *resource.FilenameOptions) error {
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editOptions := &editor.EditOptions{
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EditMode: editor.EditBeforeCreateMode,
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FilenameOptions: *options,
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ValidateOptions: cmdutil.ValidateOptions{
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EnableValidation: cmdutil.GetFlagBool(cmd, "validate"),
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},
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Output: cmdutil.GetFlagString(cmd, "output"),
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WindowsLineEndings: cmdutil.GetFlagBool(cmd, "windows-line-endings"),
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ApplyAnnotation: cmdutil.GetFlagBool(cmd, cmdutil.ApplyAnnotationsFlag),
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Record: cmdutil.GetFlagBool(cmd, "record"),
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ChangeCause: f.Command(cmd, false),
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Include3rdParty: cmdutil.GetFlagBool(cmd, "include-extended-apis"),
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}
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err := editOptions.Complete(f, out, errOut, []string{}, cmd)
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if err != nil {
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return err
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}
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return editOptions.Run()
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}
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// createAndRefresh creates an object from input info and refreshes info with that object
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func createAndRefresh(info *resource.Info) error {
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obj, err := resource.NewHelper(info.Client, info.Mapping).Create(info.Namespace, true, info.Object)
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if err != nil {
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return err
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}
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info.Refresh(obj, true)
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return nil
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}
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// NameFromCommandArgs is a utility function for commands that assume the first argument is a resource name
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func NameFromCommandArgs(cmd *cobra.Command, args []string) (string, error) {
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if len(args) == 0 {
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return "", cmdutil.UsageErrorf(cmd, "NAME is required")
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}
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return args[0], nil
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}
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// CreateSubcommandOptions is an options struct to support create subcommands
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type CreateSubcommandOptions struct {
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// Name of resource being created
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Name string
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// StructuredGenerator is the resource generator for the object being created
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StructuredGenerator kubectl.StructuredGenerator
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// DryRun is true if the command should be simulated but not run against the server
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DryRun bool
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OutputFormat string
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}
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// RunCreateSubcommand executes a create subcommand using the specified options
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func RunCreateSubcommand(f cmdutil.Factory, cmd *cobra.Command, out io.Writer, options *CreateSubcommandOptions) error {
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namespace, nsOverriden, err := f.DefaultNamespace()
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if err != nil {
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return err
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}
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obj, err := options.StructuredGenerator.StructuredGenerate()
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if err != nil {
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return err
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}
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mapper, typer := f.Object()
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gvks, _, err := typer.ObjectKinds(obj)
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if err != nil {
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return err
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}
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gvk := gvks[0]
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mapping, err := mapper.RESTMapping(schema.GroupKind{Group: gvk.Group, Kind: gvk.Kind}, gvk.Version)
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if err != nil {
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return err
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}
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client, err := f.ClientForMapping(mapping)
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if err != nil {
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return err
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}
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resourceMapper := &resource.Mapper{
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ObjectTyper: typer,
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RESTMapper: mapper,
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ClientMapper: resource.ClientMapperFunc(f.ClientForMapping),
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}
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info, err := resourceMapper.InfoForObject(obj, nil)
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if err != nil {
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return err
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}
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if err := kubectl.CreateOrUpdateAnnotation(cmdutil.GetFlagBool(cmd, cmdutil.ApplyAnnotationsFlag), info, f.JSONEncoder()); err != nil {
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return err
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}
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obj = info.Object
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if !options.DryRun {
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obj, err = resource.NewHelper(client, mapping).Create(namespace, false, info.Object)
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if err != nil {
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return err
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}
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} else {
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if meta, err := meta.Accessor(obj); err == nil && nsOverriden {
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meta.SetNamespace(namespace)
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}
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}
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if useShortOutput := options.OutputFormat == "name"; useShortOutput || len(options.OutputFormat) == 0 {
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f.PrintSuccess(mapper, useShortOutput, out, mapping.Resource, info.Name, options.DryRun, "created")
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return nil
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}
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return f.PrintObject(cmd, false, mapper, obj, out)
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}
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