mirror of https://github.com/linkerd/linkerd2.git
110 lines
3.1 KiB
Go
110 lines
3.1 KiB
Go
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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"github.com/linkerd/linkerd2/controller/gen/config"
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"github.com/linkerd/linkerd2/pkg/inject"
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"github.com/spf13/cobra"
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)
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type resourceTransformerUninject struct {
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configs *config.All
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}
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type resourceTransformerUninjectSilent struct {
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configs *config.All
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}
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func runUninjectCmd(inputs []io.Reader, errWriter, outWriter io.Writer, conf *config.All) int {
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return transformInput(inputs, errWriter, outWriter, resourceTransformerUninject{conf})
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}
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func runUninjectSilentCmd(inputs []io.Reader, errWriter, outWriter io.Writer, conf *config.All) int {
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return transformInput(inputs, errWriter, outWriter, resourceTransformerUninjectSilent{conf})
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}
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func newCmdUninject() *cobra.Command {
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cmd := &cobra.Command{
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Use: "uninject [flags] CONFIG-FILE",
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Short: "Remove the Linkerd proxy from a Kubernetes config",
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Long: `Remove the Linkerd proxy from a Kubernetes config.
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You can uninject resources contained in a single file, inside a folder and its
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sub-folders, or coming from stdin.`,
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Example: ` # Uninject all the deployments in the default namespace.
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kubectl get deploy -o yaml | linkerd uninject - | kubectl apply -f -
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# Download a resource and uninject it through stdin.
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curl http://url.to/yml | linkerd uninject - | kubectl apply -f -
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# Uninject all the resources inside a folder and its sub-folders.
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linkerd uninject <folder> | kubectl apply -f -`,
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RunE: func(cmd *cobra.Command, args []string) error {
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if len(args) < 1 {
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return fmt.Errorf("please specify a kubernetes resource file")
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}
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in, err := read(args[0])
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if err != nil {
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return err
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}
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exitCode := runUninjectCmd(in, os.Stderr, os.Stdout, nil)
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os.Exit(exitCode)
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return nil
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},
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}
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return cmd
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}
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func (rt resourceTransformerUninject) transform(bytes []byte) ([]byte, []inject.Report, error) {
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conf := inject.NewResourceConfig(rt.configs, inject.OriginWebhook)
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report, err := conf.ParseMetaAndYAML(bytes)
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if err != nil {
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return nil, nil, err
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}
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output, err := conf.Uninject(report)
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if err != nil {
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return nil, nil, err
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}
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if output == nil {
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output = bytes
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report.UnsupportedResource = true
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}
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return output, []inject.Report{*report}, nil
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}
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func (rt resourceTransformerUninjectSilent) transform(bytes []byte) ([]byte, []inject.Report, error) {
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return resourceTransformerUninject(rt).transform(bytes)
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}
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func (resourceTransformerUninject) generateReport(reports []inject.Report, output io.Writer) {
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// leading newline to separate from yaml output on stdout
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output.Write([]byte("\n"))
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for _, r := range reports {
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if r.Uninjected.Proxy || r.Uninjected.ProxyInit {
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output.Write([]byte(fmt.Sprintf("%s \"%s\" uninjected\n", r.Kind, r.Name)))
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} else {
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if r.Kind != "" {
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output.Write([]byte(fmt.Sprintf("%s \"%s\" skipped\n", r.Kind, r.Name)))
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} else {
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output.Write([]byte(fmt.Sprintf("document missing \"kind\" field, skipped\n")))
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}
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}
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}
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// trailing newline to separate from kubectl output if piping
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output.Write([]byte("\n"))
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}
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func (resourceTransformerUninjectSilent) generateReport(reports []inject.Report, output io.Writer) {
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}
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