mirror of
https://github.com/edgelesssys/constellation.git
synced 2024-12-26 07:59:37 -05:00
625dc26644
* Unify cloudcmd create and upgrade code * Make libvirt runner code a bit more idempotent --------- Signed-off-by: Daniel Weiße <dw@edgeless.systems>
86 lines
3.1 KiB
Go
86 lines
3.1 KiB
Go
/*
|
|
Copyright (c) Edgeless Systems GmbH
|
|
|
|
SPDX-License-Identifier: AGPL-3.0-only
|
|
*/
|
|
|
|
package cloudcmd
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"io"
|
|
"path/filepath"
|
|
"strings"
|
|
|
|
"github.com/edgelesssys/constellation/v2/cli/internal/terraform"
|
|
"github.com/edgelesssys/constellation/v2/internal/cloud/cloudprovider"
|
|
"github.com/edgelesssys/constellation/v2/internal/constants"
|
|
"github.com/edgelesssys/constellation/v2/internal/file"
|
|
)
|
|
|
|
// UpgradeRequiresIAMMigration returns true if the given cloud provider requires an IAM migration.
|
|
func UpgradeRequiresIAMMigration(provider cloudprovider.Provider) bool {
|
|
switch provider {
|
|
default:
|
|
return false
|
|
}
|
|
}
|
|
|
|
// IAMUpgrader handles upgrades to IAM resources required by Constellation.
|
|
type IAMUpgrader struct {
|
|
tf tfIAMUpgradeClient
|
|
existingWorkspace string
|
|
upgradeWorkspace string
|
|
fileHandler file.Handler
|
|
logLevel terraform.LogLevel
|
|
}
|
|
|
|
// NewIAMUpgrader creates and initializes a new IAMUpgrader.
|
|
// existingWorkspace is the directory holding the existing Terraform resources.
|
|
// upgradeWorkspace is the directory to use for holding temporary files and resources required to apply the upgrade.
|
|
func NewIAMUpgrader(ctx context.Context, existingWorkspace, upgradeWorkspace string,
|
|
logLevel terraform.LogLevel, fileHandler file.Handler,
|
|
) (*IAMUpgrader, error) {
|
|
tfClient, err := terraform.New(ctx, existingWorkspace)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("setting up terraform client: %w", err)
|
|
}
|
|
|
|
return &IAMUpgrader{
|
|
tf: tfClient,
|
|
existingWorkspace: existingWorkspace,
|
|
upgradeWorkspace: upgradeWorkspace,
|
|
fileHandler: fileHandler,
|
|
logLevel: logLevel,
|
|
}, nil
|
|
}
|
|
|
|
// PlanIAMUpgrade prepares the upgrade workspace and plans the possible Terraform migrations for Constellation's IAM resources (service accounts, permissions etc.).
|
|
// In case of possible migrations, the diff is written to outWriter and this function returns true.
|
|
func (u *IAMUpgrader) PlanIAMUpgrade(ctx context.Context, outWriter io.Writer, vars terraform.Variables, csp cloudprovider.Provider) (bool, error) {
|
|
return plan(
|
|
ctx, u.tf, u.fileHandler, outWriter, u.logLevel, vars,
|
|
filepath.Join(constants.TerraformEmbeddedDir, "iam", strings.ToLower(csp.String())),
|
|
u.existingWorkspace,
|
|
filepath.Join(u.upgradeWorkspace, constants.TerraformIAMUpgradeBackupDir),
|
|
)
|
|
}
|
|
|
|
// RestoreIAMWorkspace rolls back the existing workspace to the backup directory created when planning an upgrade,
|
|
// when the user decides to not apply an upgrade after planning it.
|
|
// Note that this will not apply the restored state from the backup.
|
|
func (u *IAMUpgrader) RestoreIAMWorkspace() error {
|
|
return restoreBackup(u.fileHandler, u.existingWorkspace, filepath.Join(u.upgradeWorkspace, constants.TerraformIAMUpgradeBackupDir))
|
|
}
|
|
|
|
// ApplyIAMUpgrade applies the Terraform IAM migrations planned by PlanIAMUpgrade.
|
|
// On success, the workspace of the Upgrader replaces the existing Terraform workspace.
|
|
func (u *IAMUpgrader) ApplyIAMUpgrade(ctx context.Context, csp cloudprovider.Provider) error {
|
|
if _, err := u.tf.ApplyIAM(ctx, csp, u.logLevel); err != nil {
|
|
return fmt.Errorf("terraform apply: %w", err)
|
|
}
|
|
|
|
return nil
|
|
}
|