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cli: Terraform migrations on upgrade (#1685)

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* add terraform planning

* overwrite terraform files in upgrade workspace

* Revert "overwrite terraform files in upgrade workspace"

This reverts commit 8bdacfb8bef23ef2cdbdb06bad0855b3bbc42df0.

* prepare terraform workspace

* test upgrade integration

* print upgrade abort

* rename plan file

* write output to file

* add show plan test

* add upgrade tf workdir

* fix workspace preparing

* squash to 1 command

* test

* bazel build

* plan test

* register flag manually

* bazel tidy

* fix linter

* remove MAA variable

* fix workdir

* accept tf variables

* variable fetching

* fix resource indices

* accept Terraform targets

* refactor upgrade command

* Terraform migration apply unit test

* pass down image fetcher to test

* use new flags in e2e test

* move file name to constant

* update buildfiles

* fix version constant

* conditionally create MAA

* move interface down

* upgrade dir

* update buildfiles

* fix interface

* fix createMAA check

* fix imports

* update buildfiles

* wip: workspace backup

* copy utils

* backup upgrade workspace

* remove debug print

* replace old state after upgrade

* check if flag exists

* prepare test workspace

* remove prefix

Co-authored-by: Otto Bittner <cobittner@posteo.net>

* respect file permissions

* refactor tf upgrader

* check workspace before upgrades

* remove temp upgrade dir after completion

* clean up workspace after abortion

* fix upgrade apply test

* fix linter

---------

Co-authored-by: Otto Bittner <cobittner@posteo.net>
This commit is contained in:
Moritz Sanft 2023-05-22 13:31:20 +02:00 • committed by GitHub
parent 339e750c18
commit c69e6777bd
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21 changed files with 1391 additions and 44 deletions
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33
cli/internal/terraform/loader.go
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@ -10,10 +10,12 @@ import (
"bytes"
"embed"
"errors"
"fmt"
"io/fs"
"path/filepath"
"strings"
"github.com/edgelesssys/constellation/v2/internal/constants"
"github.com/edgelesssys/constellation/v2/internal/file"
"github.com/spf13/afero"
)
@ -27,8 +29,35 @@ var terraformFS embed.FS
// prepareWorkspace loads the embedded Terraform files,
// and writes them into the workspace.
func prepareWorkspace(path string, fileHandler file.Handler, workingDir string) error {
rootDir := path
func prepareWorkspace(rootDir string, fileHandler file.Handler, workingDir string) error {
return terraformCopier(fileHandler, rootDir, workingDir)
}
// prepareUpgradeWorkspace takes the Terraform state file from the old workspace and the
// embedded Terraform files and writes them into the new workspace.
func prepareUpgradeWorkspace(rootDir string, fileHandler file.Handler, oldWorkingDir, newWorkingDir string) error {
// backup old workspace
if err := fileHandler.CopyDir(
oldWorkingDir,
filepath.Join(constants.UpgradeDir, constants.TerraformUpgradeBackupDir),
); err != nil {
return fmt.Errorf("backing up old workspace: %w", err)
}
// copy state file
if err := fileHandler.CopyFile(
filepath.Join(oldWorkingDir, "terraform.tfstate"),
filepath.Join(newWorkingDir, "terraform.tfstate"),
file.OptMkdirAll,
); err != nil {
return fmt.Errorf("copying state file: %w", err)
}
return terraformCopier(fileHandler, rootDir, newWorkingDir)
}
// terraformCopier copies the embedded Terraform files into the workspace.
func terraformCopier(fileHandler file.Handler, rootDir, workingDir string) error {
return fs.WalkDir(terraformFS, rootDir, func(path string, d fs.DirEntry, err error) error {
if err != nil {
return err