constellation/cli/internal/cmd/terminate.go
2023-09-25 18:06:44 +02:00

128 lines
4.0 KiB
Go

/*
Copyright (c) Edgeless Systems GmbH
SPDX-License-Identifier: AGPL-3.0-only
*/
package cmd
import (
"errors"
"fmt"
"io/fs"
"github.com/spf13/afero"
"github.com/spf13/cobra"
"github.com/edgelesssys/constellation/v2/cli/internal/cloudcmd"
"github.com/edgelesssys/constellation/v2/cli/internal/cmd/pathprefix"
"github.com/edgelesssys/constellation/v2/cli/internal/terraform"
"github.com/edgelesssys/constellation/v2/internal/constants"
"github.com/edgelesssys/constellation/v2/internal/file"
)
// NewTerminateCmd returns a new cobra.Command for the terminate command.
func NewTerminateCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "terminate",
Short: "Terminate a Constellation cluster",
Long: "Terminate a Constellation cluster.\n\n" +
"The cluster can't be started again, and all persistent storage will be lost.",
Args: cobra.NoArgs,
RunE: runTerminate,
}
cmd.Flags().BoolP("yes", "y", false, "terminate the cluster without further confirmation")
return cmd
}
// runTerminate runs the terminate command.
func runTerminate(cmd *cobra.Command, _ []string) error {
fileHandler := file.NewHandler(afero.NewOsFs())
spinner, err := newSpinnerOrStderr(cmd)
if err != nil {
return fmt.Errorf("creating spinner: %w", err)
}
defer spinner.Stop()
terminator := cloudcmd.NewTerminator()
return terminate(cmd, terminator, fileHandler, spinner)
}
func terminate(cmd *cobra.Command, terminator cloudTerminator, fileHandler file.Handler, spinner spinnerInterf,
) error {
flags, err := parseTerminateFlags(cmd)
if err != nil {
return fmt.Errorf("parsing flags: %w", err)
}
pf := pathprefix.New(flags.workspace)
if !flags.yes {
cmd.Println("You are about to terminate a Constellation cluster.")
cmd.Println("All of its associated resources will be DESTROYED.")
cmd.Println("This action is irreversible and ALL DATA WILL BE LOST.")
ok, err := askToConfirm(cmd, "Do you want to continue?")
if err != nil {
return err
}
if !ok {
cmd.Println("The termination of the cluster was aborted.")
return nil
}
}
spinner.Start("Terminating", false)
err = terminator.Terminate(cmd.Context(), constants.TerraformWorkingDir, flags.logLevel)
spinner.Stop()
if err != nil {
return fmt.Errorf("terminating Constellation cluster: %w", err)
}
cmd.Println("Your Constellation cluster was terminated successfully.")
var removeErr error
if err := fileHandler.Remove(constants.AdminConfFilename); err != nil && !errors.Is(err, fs.ErrNotExist) {
removeErr = errors.Join(err, fmt.Errorf("failed to remove file: '%s', please remove it manually", pf.PrefixPrintablePath(constants.AdminConfFilename)))
}
if err := fileHandler.Remove(constants.ClusterIDsFilename); err != nil && !errors.Is(err, fs.ErrNotExist) {
removeErr = errors.Join(err, fmt.Errorf("failed to remove file: '%s', please remove it manually", pf.PrefixPrintablePath(constants.ClusterIDsFilename)))
}
if err := fileHandler.Remove(constants.StateFilename); err != nil && !errors.Is(err, fs.ErrNotExist) {
removeErr = errors.Join(err, fmt.Errorf("failed to remove file: '%s', please remove it manually", pf.PrefixPrintablePath(constants.StateFilename)))
}
return removeErr
}
type terminateFlags struct {
yes bool
workspace string
logLevel terraform.LogLevel
}
func parseTerminateFlags(cmd *cobra.Command) (terminateFlags, error) {
yes, err := cmd.Flags().GetBool("yes")
if err != nil {
return terminateFlags{}, fmt.Errorf("parsing yes bool: %w", err)
}
logLevelString, err := cmd.Flags().GetString("tf-log")
if err != nil {
return terminateFlags{}, fmt.Errorf("parsing tf-log string: %w", err)
}
logLevel, err := terraform.ParseLogLevel(logLevelString)
if err != nil {
return terminateFlags{}, fmt.Errorf("parsing Terraform log level %s: %w", logLevelString, err)
}
workspace, err := cmd.Flags().GetString("workspace")
if err != nil {
return terminateFlags{}, fmt.Errorf("parsing workspace string: %w", err)
}
return terminateFlags{
yes: yes,
workspace: workspace,
logLevel: logLevel,
}, nil
}