constellation/cli/internal/cmd/upgradeexecute.go
Moritz Sanft e844ceb2b1
cli: adopt Cobra cli reference style (#997)
* adapt to Cobra CLI ref style

* linting

* change multi-line reference style

* lowercase short descriptions

* Revert "lowercase short descriptions"

This reverts commit 499dc3577a.

* use 2 newlines on long description and add dots

* mark required flags

* Update cli/internal/cmd/iamcreateaws.go

Co-authored-by: Paul Meyer <49727155+katexochen@users.noreply.github.com>

* Update cli/internal/cmd/upgradeexecute.go

Co-authored-by: Paul Meyer <49727155+katexochen@users.noreply.github.com>

* Update cli/internal/cmd/upgradeexecute.go

Co-authored-by: Paul Meyer <49727155+katexochen@users.noreply.github.com>

Co-authored-by: Paul Meyer <49727155+katexochen@users.noreply.github.com>
2023-01-17 14:01:56 +01:00

151 lines
4.8 KiB
Go

/*
Copyright (c) Edgeless Systems GmbH
SPDX-License-Identifier: AGPL-3.0-only
*/
package cmd
import (
"context"
"errors"
"fmt"
"time"
"github.com/edgelesssys/constellation/v2/cli/internal/cloudcmd"
"github.com/edgelesssys/constellation/v2/cli/internal/helm"
"github.com/edgelesssys/constellation/v2/cli/internal/image"
"github.com/edgelesssys/constellation/v2/internal/attestation/measurements"
"github.com/edgelesssys/constellation/v2/internal/config"
"github.com/edgelesssys/constellation/v2/internal/file"
"github.com/spf13/afero"
"github.com/spf13/cobra"
)
func newUpgradeExecuteCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "execute",
Short: "Execute an upgrade of a Constellation cluster",
Long: "Execute an upgrade of a Constellation cluster by applying the chosen configuration.",
Args: cobra.NoArgs,
RunE: runUpgradeExecute,
}
cmd.Flags().Bool("helm", false, "execute helm upgrade\n"+
"This feature is still in development an may change without announcement. Upgrades all helm charts deployed during constellation-init.")
cmd.Flags().BoolP("yes", "y", false, "run upgrades without further confirmation\n"+
"WARNING: might delete your resources in case you are using cert-manager in your cluster. Please read the docs.")
cmd.Flags().Duration("timeout", 3*time.Minute, "change helm upgrade timeout\n"+
"This feature is still in development an may change without announcement. Might be useful for slow connections or big clusters.")
if err := cmd.Flags().MarkHidden("helm"); err != nil {
panic(err)
}
if err := cmd.Flags().MarkHidden("timeout"); err != nil {
panic(err)
}
return cmd
}
func runUpgradeExecute(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())
imageFetcher := image.New()
upgrader, err := cloudcmd.NewUpgrader(cmd.OutOrStdout(), log)
if err != nil {
return err
}
return upgradeExecute(cmd, imageFetcher, upgrader, fileHandler)
}
func upgradeExecute(cmd *cobra.Command, imageFetcher imageFetcher, upgrader cloudUpgrader, fileHandler file.Handler) error {
flags, err := parseUpgradeExecuteFlags(cmd)
if err != nil {
return fmt.Errorf("parsing flags: %w", err)
}
conf, err := config.New(fileHandler, flags.configPath)
if err != nil {
return displayConfigValidationErrors(cmd.ErrOrStderr(), err)
}
if flags.helmFlag {
err = upgrader.UpgradeHelmServices(cmd.Context(), conf, flags.upgradeTimeout, helm.DenyDestructive)
if errors.Is(err, helm.ErrConfirmationMissing) {
if !flags.yes {
cmd.PrintErrln("WARNING: Upgrading cert-manager will destroy all custom resources you have manually created that are based on the current version of cert-manager.")
ok, askErr := askToConfirm(cmd, "Do you want to upgrade cert-manager anyway?")
if askErr != nil {
return fmt.Errorf("asking for confirmation: %w", err)
}
if !ok {
cmd.Println("Aborting upgrade.")
return nil
}
}
err = upgrader.UpgradeHelmServices(cmd.Context(), conf, flags.upgradeTimeout, helm.AllowDestructive)
}
if err != nil {
return fmt.Errorf("upgrading helm: %w", err)
}
return nil
}
// TODO: validate upgrade config? Should be basic things like checking image is not an empty string
// More sophisticated validation, like making sure we don't downgrade the cluster, should be done by `constellation upgrade plan`
// this config modification is temporary until we can remove the upgrade section from the config
conf.Image = conf.Upgrade.Image
imageReference, err := imageFetcher.FetchReference(cmd.Context(), conf)
if err != nil {
return err
}
return upgrader.Upgrade(cmd.Context(), imageReference, conf.Upgrade.Image, conf.Upgrade.Measurements)
}
func parseUpgradeExecuteFlags(cmd *cobra.Command) (upgradeExecuteFlags, error) {
configPath, err := cmd.Flags().GetString("config")
if err != nil {
return upgradeExecuteFlags{}, err
}
helmFlag, err := cmd.Flags().GetBool("helm")
if err != nil {
return upgradeExecuteFlags{}, err
}
yes, err := cmd.Flags().GetBool("yes")
if err != nil {
return upgradeExecuteFlags{}, err
}
timeout, err := cmd.Flags().GetDuration("timeout")
if err != nil {
return upgradeExecuteFlags{}, err
}
return upgradeExecuteFlags{configPath: configPath, helmFlag: helmFlag, yes: yes, upgradeTimeout: timeout}, nil
}
type upgradeExecuteFlags struct {
configPath string
helmFlag bool
yes bool
upgradeTimeout time.Duration
}
type cloudUpgrader interface {
Upgrade(ctx context.Context, imageReference, imageVersion string, measurements measurements.M) error
UpgradeHelmServices(ctx context.Context, config *config.Config, timeout time.Duration, allowDestructive bool) error
}
type imageFetcher interface {
FetchReference(ctx context.Context, config *config.Config) (string, error)
}