105 lines
2.9 KiB
Go
105 lines
2.9 KiB
Go
package context
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import (
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"bytes"
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"fmt"
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"github.com/docker/cli/cli"
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"github.com/docker/cli/cli/command"
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"github.com/docker/cli/cli/command/formatter/tabwriter"
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"github.com/docker/cli/cli/context/docker"
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"github.com/docker/cli/cli/context/store"
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"github.com/spf13/cobra"
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)
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// UpdateOptions are the options used to update a context
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type UpdateOptions struct {
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Name string
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Description string
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Docker map[string]string
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}
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func longUpdateDescription() string {
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buf := bytes.NewBuffer(nil)
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buf.WriteString("Update a context\n\nDocker endpoint config:\n\n")
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tw := tabwriter.NewWriter(buf, 20, 1, 3, ' ', 0)
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_, _ = fmt.Fprintln(tw, "NAME\tDESCRIPTION")
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for _, d := range dockerConfigKeysDescriptions {
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_, _ = fmt.Fprintf(tw, "%s\t%s\n", d.name, d.description)
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}
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_ = tw.Flush()
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buf.WriteString("\nExample:\n\n$ docker context update my-context --description \"some description\" --docker \"host=tcp://myserver:2376,ca=~/ca-file,cert=~/cert-file,key=~/key-file\"\n")
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return buf.String()
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}
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func newUpdateCommand(dockerCLI command.Cli) *cobra.Command {
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opts := &UpdateOptions{}
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cmd := &cobra.Command{
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Use: "update [OPTIONS] CONTEXT",
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Short: "Update a context",
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Args: cli.ExactArgs(1),
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RunE: func(cmd *cobra.Command, args []string) error {
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opts.Name = args[0]
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return RunUpdate(dockerCLI, opts)
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},
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Long: longUpdateDescription(),
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ValidArgsFunction: completeContextNames(dockerCLI, 1, false),
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}
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flags := cmd.Flags()
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flags.StringVar(&opts.Description, "description", "", "Description of the context")
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flags.StringToStringVar(&opts.Docker, "docker", nil, "set the docker endpoint")
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return cmd
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}
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// RunUpdate updates a Docker context
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func RunUpdate(dockerCLI command.Cli, o *UpdateOptions) error {
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if err := store.ValidateContextName(o.Name); err != nil {
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return err
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}
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s := dockerCLI.ContextStore()
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c, err := s.GetMetadata(o.Name)
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if err != nil {
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return err
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}
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dockerContext, err := command.GetDockerContext(c)
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if err != nil {
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return err
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}
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if o.Description != "" {
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dockerContext.Description = o.Description
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}
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c.Metadata = dockerContext
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tlsDataToReset := make(map[string]*store.EndpointTLSData)
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if o.Docker != nil {
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dockerEP, dockerTLS, err := getDockerEndpointMetadataAndTLS(s, o.Docker)
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if err != nil {
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return fmt.Errorf("unable to create docker endpoint config: %w", err)
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}
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c.Endpoints[docker.DockerEndpoint] = dockerEP
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tlsDataToReset[docker.DockerEndpoint] = dockerTLS
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}
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if err := validateEndpoints(c); err != nil {
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return err
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}
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if err := s.CreateOrUpdate(c); err != nil {
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return err
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}
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for ep, tlsData := range tlsDataToReset {
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if err := s.ResetEndpointTLSMaterial(o.Name, ep, tlsData); err != nil {
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return err
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}
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}
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_, _ = fmt.Fprintln(dockerCLI.Out(), o.Name)
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_, _ = fmt.Fprintf(dockerCLI.Err(), "Successfully updated context %q\n", o.Name)
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return nil
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}
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func validateEndpoints(c store.Metadata) error {
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_, err := command.GetDockerContext(c)
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return err
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}
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