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https://github.com/edgelesssys/constellation.git
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ec424b260d
* Move upgrade specific functions out of Terraform module * Always allow overwriting Terraform files * Ensure constellation-terraform dir does not exist on create --------- Signed-off-by: Daniel Weiße <dw@edgeless.systems>
74 lines
2.0 KiB
Go
74 lines
2.0 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 terraform
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import (
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"embed"
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"errors"
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"io/fs"
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slashpath "path"
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"path/filepath"
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"strings"
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"github.com/edgelesssys/constellation/v2/internal/file"
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"github.com/spf13/afero"
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)
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//go:embed terraform/*
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//go:embed terraform/*/.terraform.lock.hcl
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//go:embed terraform/iam/*/.terraform.lock.hcl
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var terraformFS embed.FS
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// prepareWorkspace loads the embedded Terraform files,
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// and writes them into the workspace.
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func prepareWorkspace(rootDir string, fileHandler file.Handler, workingDir string) error {
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return terraformCopier(fileHandler, rootDir, workingDir)
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}
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// terraformCopier copies the embedded Terraform files into the workspace.
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func terraformCopier(fileHandler file.Handler, rootDir, workingDir string) error {
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goEmbedRootDir := filepath.ToSlash(rootDir)
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return fs.WalkDir(terraformFS, goEmbedRootDir, func(path string, d fs.DirEntry, err error) error {
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if err != nil {
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return err
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}
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if d.IsDir() {
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return nil
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}
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goEmbedPath := filepath.ToSlash(path)
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content, err := terraformFS.ReadFile(goEmbedPath)
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if err != nil {
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return err
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}
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// normalize
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fileName := strings.Replace(slashpath.Join(workingDir, path), goEmbedRootDir+"/", "", 1)
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opts := []file.Option{
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file.OptMkdirAll,
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// Allow overwriting existing files.
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// If we are creating a new cluster, the workspace must have been empty before,
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// so there is no risk of overwriting existing files.
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// If we are upgrading an existing cluster, we want to overwrite the existing files,
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// and we have already created a backup of the existing workspace.
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file.OptOverwrite,
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}
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return fileHandler.Write(fileName, content, opts...)
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})
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}
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func cleanUpWorkspace(fileHandler file.Handler, workingDir string) error {
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return ignoreFileNotFoundErr(fileHandler.RemoveAll(workingDir))
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}
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// ignoreFileNotFoundErr ignores the error if it is a file not found error.
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func ignoreFileNotFoundErr(err error) error {
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if errors.Is(err, afero.ErrFileNotFound) {
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return nil
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}
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return err
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}
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