mirror of
https://github.com/edgelesssys/constellation.git
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80 lines
2.8 KiB
Go
80 lines
2.8 KiB
Go
/*
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Copyright (c) Edgeless Systems GmbH
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SPDX-License-Identifier: AGPL-3.0-only
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*/
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package cmd
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import (
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"context"
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"fmt"
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"io"
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"github.com/edgelesssys/constellation/v2/cli/internal/upgrade"
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"github.com/edgelesssys/constellation/v2/internal/file"
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"github.com/spf13/cobra"
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)
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// tfMigrationClient is a client for planning and applying Terraform migrations.
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type tfMigrationClient struct {
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log debugLog
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}
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// planMigration checks for Terraform migrations and asks for confirmation if there are any. The user input is returned as confirmedDiff.
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// adapted from migrateTerraform().
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func (u *tfMigrationClient) planMigration(cmd *cobra.Command, file file.Handler, migrateCmd tfMigrationCmd) (hasDiff bool, err error) {
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u.log.Debugf("Planning %s", migrateCmd.String())
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if err := migrateCmd.CheckTerraformMigrations(file); err != nil {
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return false, fmt.Errorf("checking workspace: %w", err)
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}
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hasDiff, err = migrateCmd.Plan(cmd.Context(), file, cmd.OutOrStdout())
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if err != nil {
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return hasDiff, fmt.Errorf("planning terraform migrations: %w", err)
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}
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return hasDiff, nil
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}
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// applyMigration plans and then applies the Terraform migration. The user is asked for confirmation if there are any changes.
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// adapted from migrateTerraform().
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func (u *tfMigrationClient) applyMigration(cmd *cobra.Command, upgradeWorkspace string, file file.Handler, migrateCmd tfMigrationCmd, yesFlag bool) error {
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hasDiff, err := u.planMigration(cmd, file, migrateCmd)
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if err != nil {
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return err
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}
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if hasDiff {
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// If there are any Terraform migrations to apply, ask for confirmation
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fmt.Fprintf(cmd.OutOrStdout(), "The %s upgrade requires a migration by applying an updated Terraform template. Please manually review the suggested changes.\n", migrateCmd.String())
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if !yesFlag {
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ok, err := askToConfirm(cmd, fmt.Sprintf("Do you want to apply the %s?", migrateCmd.String()))
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if err != nil {
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return fmt.Errorf("asking for confirmation: %w", err)
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}
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if !ok {
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cmd.Println("Aborting upgrade.")
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if err := upgrade.CleanUpTerraformMigrations(upgradeWorkspace, migrateCmd.UpgradeID(), file); err != nil {
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return fmt.Errorf("cleaning up workspace: %w", err)
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}
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return fmt.Errorf("aborted by user")
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}
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}
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u.log.Debugf("Applying Terraform %s migrations", migrateCmd.String())
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err := migrateCmd.Apply(cmd.Context(), file)
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if err != nil {
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return fmt.Errorf("applying terraform migrations: %w", err)
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}
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} else {
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u.log.Debugf("No Terraform diff detected")
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}
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return nil
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}
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// tfMigrationCmd is an interface for all terraform upgrade / migration commands.
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type tfMigrationCmd interface {
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CheckTerraformMigrations(file file.Handler) error
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Plan(ctx context.Context, file file.Handler, outWriter io.Writer) (bool, error)
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Apply(ctx context.Context, fileHandler file.Handler) error
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String() string
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UpgradeID() string
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}
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