constellation/cli/internal/cmd/configgenerate.go
Alex Darby 97c72f5f32
cli: add verbose debug logging (#809)
* feat: add debug logging for init command
* feat: add debug logging to recover command
* feat: add debug logging for configfetchmeasurements
* feat: add debug logging for config generate
* feat: added debug logging for miniup command
* feat: add debug logging for upgrade command
* feat: add debug logging for create command
2023-01-04 10:46:29 +01:00

115 lines
3.3 KiB
Go

/*
Copyright (c) Edgeless Systems GmbH
SPDX-License-Identifier: AGPL-3.0-only
*/
package cmd
import (
"fmt"
"github.com/edgelesssys/constellation/v2/internal/cloud/cloudprovider"
"github.com/edgelesssys/constellation/v2/internal/config"
"github.com/edgelesssys/constellation/v2/internal/constants"
"github.com/edgelesssys/constellation/v2/internal/file"
"github.com/siderolabs/talos/pkg/machinery/config/encoder"
"github.com/spf13/afero"
"github.com/spf13/cobra"
)
func newConfigGenerateCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "generate {aws|azure|gcp|qemu}",
Short: "Generate a default configuration file",
Long: "Generate a default configuration file for your selected cloud provider.",
Args: cobra.MatchAll(
cobra.ExactArgs(1),
isCloudProvider(0),
),
ValidArgsFunction: generateCompletion,
RunE: runConfigGenerate,
}
cmd.Flags().StringP("file", "f", constants.ConfigFilename, "path to output file, or '-' for stdout")
return cmd
}
type generateFlags struct {
file string
}
type configGenerateCmd struct {
log debugLog
}
func runConfigGenerate(cmd *cobra.Command, args []string) error {
log, err := newCLILogger(cmd)
if err != nil {
return fmt.Errorf("creating logger: %w", err)
}
defer log.Sync()
fileHandler := file.NewHandler(afero.NewOsFs())
provider := cloudprovider.FromString(args[0])
cg := &configGenerateCmd{log: log}
return cg.configGenerate(cmd, fileHandler, provider)
}
func (cg *configGenerateCmd) configGenerate(cmd *cobra.Command, fileHandler file.Handler, provider cloudprovider.Provider) error {
flags, err := parseGenerateFlags(cmd)
if err != nil {
return err
}
cg.log.Debugf("Parsed flags as %v", flags)
conf := config.Default()
conf.RemoveProviderExcept(provider)
cg.log.Debugf("Using cloud provider %s", provider.String())
// set a lower default for QEMU's state disk
if provider == cloudprovider.QEMU {
conf.StateDiskSizeGB = 10
}
if flags.file == "-" {
content, err := encoder.NewEncoder(conf).Encode()
if err != nil {
return fmt.Errorf("encoding config content: %w", err)
}
cg.log.Debugf("Writing YAML data to stdout")
_, err = cmd.OutOrStdout().Write(content)
return err
}
cg.log.Debugf("Writing YAML data to configuration file")
if err := fileHandler.WriteYAML(flags.file, conf, file.OptMkdirAll); err != nil {
return err
}
cmd.Println("Config file written to", flags.file)
cmd.Println("Please fill in your CSP-specific configuration before proceeding.")
cmd.Println("For more information refer to the documentation:")
cmd.Println("\thttps://docs.edgeless.systems/constellation/getting-started/first-steps")
return nil
}
func parseGenerateFlags(cmd *cobra.Command) (generateFlags, error) {
file, err := cmd.Flags().GetString("file")
if err != nil {
return generateFlags{}, fmt.Errorf("parsing config generate flags: %w", err)
}
return generateFlags{
file: file,
}, nil
}
// createCompletion handles the completion of the create command. It is frequently called
// while the user types arguments of the command to suggest completion.
func generateCompletion(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
switch len(args) {
case 0:
return []string{"aws", "gcp", "azure", "qemu"}, cobra.ShellCompDirectiveNoFileComp
default:
return []string{}, cobra.ShellCompDirectiveError
}
}