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Add context store config options and expose context commands

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This will allow plugins to have custom typed endpoints, as well as
create/remove/update contexts with the exact same results as the main
CLI (thinking of things like `docker ee login https://my-ucp-server
--context ucp-prod)`

Signed-off-by: Simon Ferquel <simon.ferquel@docker.com>
This commit is contained in:
Simon Ferquel
2019-01-21 09:37:20 +01:00
parent cf6c238660
commit 3126920af1
16 changed files with 273 additions and 203 deletions
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46
cli/command/context/export.go
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@ -15,36 +15,37 @@ import (
"k8s.io/client-go/tools/clientcmd"
)
type exportOptions struct {
kubeconfig bool
contextName string
dest string
// ExportOptions are the options used for exporting a context
type ExportOptions struct {
Kubeconfig bool
ContextName string
Dest string
}
func newExportCommand(dockerCli command.Cli) *cobra.Command {
opts := &exportOptions{}
opts := &ExportOptions{}
cmd := &cobra.Command{
Use: "export [OPTIONS] CONTEXT [FILE|-]",
Short: "Export a context to a tar or kubeconfig file",
Args: cli.RequiresRangeArgs(1, 2),
RunE: func(cmd *cobra.Command, args []string) error {
opts.contextName = args[0]
opts.ContextName = args[0]
if len(args) == 2 {
opts.dest = args[1]
opts.Dest = args[1]
} else {
opts.dest = opts.contextName
if opts.kubeconfig {
opts.dest += ".kubeconfig"
opts.Dest = opts.ContextName
if opts.Kubeconfig {
opts.Dest += ".kubeconfig"
} else {
opts.dest += ".dockercontext"
opts.Dest += ".dockercontext"
}
}
return runExport(dockerCli, opts)
return RunExport(dockerCli, opts)
},
}
flags := cmd.Flags()
flags.BoolVar(&opts.kubeconfig, "kubeconfig", false, "Export as a kubeconfig file")
flags.BoolVar(&opts.Kubeconfig, "kubeconfig", false, "Export as a kubeconfig file")
return cmd
}
@ -74,24 +75,25 @@ func writeTo(dockerCli command.Cli, reader io.Reader, dest string) error {
return nil
}
func runExport(dockerCli command.Cli, opts *exportOptions) error {
if err := validateContextName(opts.contextName); err != nil {
// RunExport exports a Docker context
func RunExport(dockerCli command.Cli, opts *ExportOptions) error {
if err := validateContextName(opts.ContextName); err != nil {
return err
}
ctxMeta, err := dockerCli.ContextStore().GetContextMetadata(opts.contextName)
ctxMeta, err := dockerCli.ContextStore().GetContextMetadata(opts.ContextName)
if err != nil {
return err
}
if !opts.kubeconfig {
reader := store.Export(opts.contextName, dockerCli.ContextStore())
if !opts.Kubeconfig {
reader := store.Export(opts.ContextName, dockerCli.ContextStore())
defer reader.Close()
return writeTo(dockerCli, reader, opts.dest)
return writeTo(dockerCli, reader, opts.Dest)
}
kubernetesEndpointMeta := kubernetes.EndpointFromContext(ctxMeta)
if kubernetesEndpointMeta == nil {
return fmt.Errorf("context %q has no kubernetes endpoint", opts.contextName)
return fmt.Errorf("context %q has no kubernetes endpoint", opts.ContextName)
}
kubernetesEndpoint, err := kubernetesEndpointMeta.WithTLSData(dockerCli.ContextStore(), opts.contextName)
kubernetesEndpoint, err := kubernetesEndpointMeta.WithTLSData(dockerCli.ContextStore(), opts.ContextName)
if err != nil {
return err
}
@ -104,5 +106,5 @@ func runExport(dockerCli command.Cli, opts *exportOptions) error {
if err != nil {
return err
}
return writeTo(dockerCli, bytes.NewBuffer(data), opts.dest)
return writeTo(dockerCli, bytes.NewBuffer(data), opts.Dest)
}