(feat) gitopsUpdateDeployment supports globbing 🌟 (#3533)

* (feat) support for kustomize in gitopsUpdateDeployment step Signed-off-by: Michael Sprauer <Michael.Sprauer@sap.com> * add missing documentation * add another detail in the documentation Signed-off-by: Michael Sprauer <Michael.Sprauer@sap.com> * generate again the update doc Signed-off-by: Michael Sprauer <Michael.Sprauer@sap.com> * (feat) gitopsUpdateDeployment now supports globbing Signed-off-by: Michael Sprauer <Michael.Sprauer@sap.com> * generate and fmt Signed-off-by: Michael Sprauer <Michael.Sprauer@sap.com> * fix tests Signed-off-by: Michael Sprauer <Michael.Sprauer@sap.com> Co-authored-by: Oliver Nocon <33484802+OliverNocon@users.noreply.github.com>
2025-01-18 05:18:24 +02:00 · 2022-02-18 08:43:34 +01:00 · 2022-02-18 08:43:34 +01:00 · 385038e652
commit 385038e652
parent 20f5e955f9
4 changed files with 287 additions and 74 deletions
--- a/cmd/gitopsUpdateDeployment.go
+++ b/cmd/gitopsUpdateDeployment.go
@ -11,11 +11,14 @@ import (
 	"github.com/SAP/jenkins-library/pkg/telemetry"
 	"github.com/go-git/go-git/v5"
 	"github.com/go-git/go-git/v5/plumbing"
+	"github.com/go-git/go-git/v5/plumbing/object"
 	"github.com/pkg/errors"
 	"io"
 	"os"
 	"path/filepath"
+	"regexp"
 	"strings"
+	"time"
 )

 const toolKubectl = "kubectl"
@ -23,7 +26,7 @@ const toolHelm = "helm"
 const toolKustomize = "kustomize"

 type iGitopsUpdateDeploymentGitUtils interface {
-	CommitSingleFile(filePath, commitMessage, author string) (plumbing.Hash, error)
+	CommitFiles(filePaths []string, commitMessage, author string) (plumbing.Hash, error)
 	PushChangesToRepository(username, password string) error
 	PlainClone(username, password, serverURL, directory string) error
 	ChangeBranch(branchName string) error
@ -33,6 +36,7 @@ type gitopsUpdateDeploymentFileUtils interface {
 	TempDir(dir, pattern string) (name string, err error)
 	RemoveAll(path string) error
 	FileWrite(path string, content []byte, perm os.FileMode) error
+	Glob(pattern string) ([]string, error)
 }

 type gitopsUpdateDeploymentExecRunner interface {
@ -47,8 +51,24 @@ type gitopsUpdateDeploymentGitUtils struct {
 	repository *git.Repository
 }

-func (g *gitopsUpdateDeploymentGitUtils) CommitSingleFile(filePath, commitMessage, author string) (plumbing.Hash, error) {
-	return gitUtil.CommitSingleFile(filePath, commitMessage, author, g.worktree)
+func (g *gitopsUpdateDeploymentGitUtils) CommitFiles(filePaths []string, commitMessage, author string) (plumbing.Hash, error) {
+	for _, path := range filePaths {
+		_, err := g.worktree.Add(path)
+
+		if err != nil {
+			return [20]byte{}, errors.Wrap(err, "failed to add file to git")
+		}
+	}
+
+	commit, err := g.worktree.Commit(commitMessage, &git.CommitOptions{
+		All:    true,
+		Author: &object.Signature{Name: author, When: time.Now()},
+	})
+	if err != nil {
+		return [20]byte{}, errors.Wrap(err, "failed to commit file")
+	}
+
+	return commit, nil
 }

 func (g *gitopsUpdateDeploymentGitUtils) PushChangesToRepository(username, password string) error {
@ -94,6 +114,7 @@ func runGitopsUpdateDeployment(config *gitopsUpdateDeploymentOptions, command gi
 	}

 	temporaryFolder, err := fileUtils.TempDir(".", "temp-")
+	temporaryFolder = regexp.MustCompile(`^./`).ReplaceAllString(temporaryFolder, "")
 	if err != nil {
 		return errors.Wrap(err, "failed to create temporary directory")
 	}
@ -111,18 +132,42 @@ func runGitopsUpdateDeployment(config *gitopsUpdateDeploymentOptions, command gi
 	}

 	filePath := filepath.Join(temporaryFolder, config.FilePath)
+	if config.Tool == toolHelm {
+		filePath = filepath.Join(temporaryFolder, config.ChartPath)
+	}
+
+	allFiles, err := fileUtils.Glob(filePath)
+	if err != nil {
+		return errors.Wrap(err, "unable to expand globbing pattern")
+	} else if len(allFiles) == 0 {
+		return errors.New("no matching files found for provided globbing pattern")
+	}
+	command.SetDir("./")

 	var outputBytes []byte
+	for _, currentFile := range allFiles {
 		if config.Tool == toolKubectl {
-		outputBytes, err = executeKubectl(config, command, outputBytes, filePath)
+			outputBytes, err = executeKubectl(config, command, outputBytes, currentFile)
 			if err != nil {
 				return errors.Wrap(err, "error on kubectl execution")
 			}
 		} else if config.Tool == toolHelm {
-		outputBytes, err = runHelmCommand(command, config)
+
+			out, err := runHelmCommand(command, config, currentFile)
 			if err != nil {
 				return errors.Wrap(err, "failed to apply helm command")
 			}
+			// join all helm outputs into the same "FilePath"
+			outputBytes = append(outputBytes, []byte("---\n")...)
+			outputBytes = append(outputBytes, out...)
+			currentFile = filepath.Join(temporaryFolder, config.FilePath)
+
+		} else if config.Tool == toolKustomize {
+			_, err = runKustomizeCommand(command, config, currentFile)
+			if err != nil {
+				return errors.Wrap(err, "failed to apply kustomize command")
+			}
+			outputBytes = nil
 		} else if config.Tool == toolKustomize {
 			outputBytes, err = runKustomizeCommand(command, config, filePath)
 			if err != nil {
@ -133,12 +178,24 @@ func runGitopsUpdateDeployment(config *gitopsUpdateDeploymentOptions, command gi
 			return errors.New("tool " + config.Tool + " is not supported")
 		}

-	err = fileUtils.FileWrite(filePath, outputBytes, 0755)
+		if outputBytes != nil {
+			err = fileUtils.FileWrite(currentFile, outputBytes, 0755)
 			if err != nil {
 				return errors.Wrap(err, "failed to write file")
 			}
+		}
+	}
+	if config.Tool == toolHelm {
+		// helm only creates one output file.
+		allFiles = []string{config.FilePath}
+	} else {
+		// git expects the file path relative to its root:
+		for i := range allFiles {
+			allFiles[i] = strings.ReplaceAll(allFiles[i], temporaryFolder+"/", "")
+		}
+	}

-	commit, err := commitAndPushChanges(config, gitUtils)
+	commit, err := commitAndPushChanges(config, gitUtils, allFiles)
 	if err != nil {
 		return errors.Wrap(err, "failed to commit and push changes")
 	}
@ -260,6 +317,7 @@ func executeKubectl(config *gitopsUpdateDeploymentOptions, command gitopsUpdateD
 	}
 	patchString := "{\"spec\":{\"template\":{\"spec\":{\"containers\":[{\"name\":\"" + config.ContainerName + "\",\"image\":\"" + registryImage + "\"}]}}}}"

+	log.Entry().Infof("[kubectl] updating '%s'", filePath)
 	outputBytes, err = runKubeCtlCommand(command, patchString, filePath)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to apply kubectl command")
@ -301,9 +359,9 @@ func runKubeCtlCommand(command gitopsUpdateDeploymentExecRunner, patchString str
 	return kubectlOutput.Bytes(), nil
 }

-func runHelmCommand(runner gitopsUpdateDeploymentExecRunner, config *gitopsUpdateDeploymentOptions) ([]byte, error) {
+func runHelmCommand(command gitopsUpdateDeploymentExecRunner, config *gitopsUpdateDeploymentOptions, filePath string) ([]byte, error) {
 	var helmOutput = bytes.Buffer{}
-	runner.Stdout(&helmOutput)
+	command.Stdout(&helmOutput)

 	registryImage, imageTag, err := buildRegistryPlusImageAndTagSeparately(config)
 	if err != nil {
@ -312,7 +370,7 @@ func runHelmCommand(runner gitopsUpdateDeploymentExecRunner, config *gitopsUpdat
 	helmParams := []string{
 		"template",
 		config.DeploymentName,
-		filepath.Join(".", config.ChartPath),
+		filePath,
 		"--set=image.repository=" + registryImage,
 		"--set=image.tag=" + imageTag,
 	}
@ -321,16 +379,17 @@ func runHelmCommand(runner gitopsUpdateDeploymentExecRunner, config *gitopsUpdat
 		helmParams = append(helmParams, "--values", value)
 	}

-	err = runner.RunExecutable(toolHelm, helmParams...)
+	log.Entry().Infof("[helmn] updating '%s'", filePath)
+	err = command.RunExecutable(toolHelm, helmParams...)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to execute helm command")
 	}
 	return helmOutput.Bytes(), nil
 }

-func runKustomizeCommand(runner gitopsUpdateDeploymentExecRunner, config *gitopsUpdateDeploymentOptions, filePath string) ([]byte, error) {
+func runKustomizeCommand(command gitopsUpdateDeploymentExecRunner, config *gitopsUpdateDeploymentOptions, filePath string) ([]byte, error) {
 	var kustomizeOutput = bytes.Buffer{}
-	runner.Stdout(&kustomizeOutput)
+	command.Stdout(&kustomizeOutput)

 	kustomizeParams := []string{
 		"edit",
@ -339,9 +398,10 @@ func runKustomizeCommand(runner gitopsUpdateDeploymentExecRunner, config *gitops
 		config.DeploymentName + "=" + config.ContainerImageNameTag,
 	}

-	runner.SetDir(filepath.Dir(filePath))
+	command.SetDir(filepath.Dir(filePath))

-	err := runner.RunExecutable(toolKustomize, kustomizeParams...)
+	log.Entry().Infof("[kustomize] updating '%s'", filePath)
+	err := command.RunExecutable(toolKustomize, kustomizeParams...)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to execute kustomize command")
 	}
@ -387,14 +447,14 @@ func buildRegistryPlusImageAndTagSeparately(config *gitopsUpdateDeploymentOption

 }

-func commitAndPushChanges(config *gitopsUpdateDeploymentOptions, gitUtils iGitopsUpdateDeploymentGitUtils) (plumbing.Hash, error) {
+func commitAndPushChanges(config *gitopsUpdateDeploymentOptions, gitUtils iGitopsUpdateDeploymentGitUtils, filePaths []string) (plumbing.Hash, error) {
 	commitMessage := config.CommitMessage

 	if commitMessage == "" {
 		commitMessage = defaultCommitMessage(config)
 	}

-	commit, err := gitUtils.CommitSingleFile(config.FilePath, commitMessage, config.Username)
+	commit, err := gitUtils.CommitFiles(filePaths, commitMessage, config.Username)
 	if err != nil {
 		return [20]byte{}, errors.Wrap(err, "committing changes failed")
 	}
--- a/cmd/gitopsUpdateDeployment_generated.go
+++ b/cmd/gitopsUpdateDeployment_generated.go
@ -50,8 +50,9 @@ func GitopsUpdateDeploymentCommand() *cobra.Command {
 It can for example be used for GitOps scenarios where the update of the manifests triggers an update of the corresponding deployment in Kubernetes.

 As of today, it supports the update of deployment yaml files via kubectl patch, update a whole helm template and kustomize.
+
 For *kubectl* the container inside the yaml must be described within the following hierarchy: ` + "`" + `{"spec":{"template":{"spec":{"containers":[{...}]}}}}` + "`" + `
-For *helm* the whole template is generated into a file and uploaded into the repository.
+For *helm* the whole template is generated into a single file (` + "`" + `filePath` + "`" + `) and uploaded into the repository.
 For *kustomize* the ` + "`" + `images` + "`" + ` section will be update with the current image.`,
 		PreRunE: func(cmd *cobra.Command, _ []string) error {
 			startTime = time.Now()
@ -134,11 +135,11 @@ func addGitopsUpdateDeploymentFlags(cmd *cobra.Command, stepConfig *gitopsUpdate
 	cmd.Flags().StringVar(&stepConfig.ServerURL, "serverUrl", `https://github.com`, "GitHub server url to the repository.")
 	cmd.Flags().StringVar(&stepConfig.Username, "username", os.Getenv("PIPER_username"), "User name for git authentication")
 	cmd.Flags().StringVar(&stepConfig.Password, "password", os.Getenv("PIPER_password"), "Password/token for git authentication.")
-	cmd.Flags().StringVar(&stepConfig.FilePath, "filePath", os.Getenv("PIPER_filePath"), "Relative path in the git repository to the deployment descriptor file that shall be updated. For different tools this has different semantics:\n\n * `kubectl` - path to the `deployment.yaml` that should be patched.\n * `helm` - not used. Please use `chartPath` instead.\n * `kustomize` - path to the `kustomization.yaml`.\n")
+	cmd.Flags().StringVar(&stepConfig.FilePath, "filePath", os.Getenv("PIPER_filePath"), "Relative path in the git repository to the deployment descriptor file that shall be updated. For different tools this has different semantics:\n\n * `kubectl` - path to the `deployment.yaml` that should be patched. Supports globbing.\n * `helm` - path where the helm chart will be generated into. Here no globbing is supported.\n * `kustomize` - path to the `kustomization.yaml`. Supports globbing.\n")
 	cmd.Flags().StringVar(&stepConfig.ContainerName, "containerName", os.Getenv("PIPER_containerName"), "The name of the container to update")
 	cmd.Flags().StringVar(&stepConfig.ContainerRegistryURL, "containerRegistryUrl", os.Getenv("PIPER_containerRegistryUrl"), "http(s) url of the Container registry where the image is located")
 	cmd.Flags().StringVar(&stepConfig.ContainerImageNameTag, "containerImageNameTag", os.Getenv("PIPER_containerImageNameTag"), "Container image name with version tag to annotate in the deployment configuration.")
-	cmd.Flags().StringVar(&stepConfig.ChartPath, "chartPath", os.Getenv("PIPER_chartPath"), "Defines the chart path for deployments using helm.")
+	cmd.Flags().StringVar(&stepConfig.ChartPath, "chartPath", os.Getenv("PIPER_chartPath"), "Defines the chart path for deployments using helm. Globbing is supported to merge multiple charts into one resource.yaml that will be commited.")
 	cmd.Flags().StringSliceVar(&stepConfig.HelmValues, "helmValues", []string{}, "List of helm values as YAML file reference or URL (as per helm parameter description for `-f` / `--values`)")
 	cmd.Flags().StringVar(&stepConfig.DeploymentName, "deploymentName", os.Getenv("PIPER_deploymentName"), "Defines the name of the deployment. In case of `kustomize` this is the name or alias of the image in the `kustomization.yaml`")
 	cmd.Flags().StringVar(&stepConfig.Tool, "tool", `kubectl`, "Defines the tool which should be used to update the deployment description.")
--- a/cmd/gitopsUpdateDeployment_test.go
+++ b/cmd/gitopsUpdateDeployment_test.go
@ -101,7 +101,8 @@ func TestRunGitopsUpdateDeploymentWithKubectl(t *testing.T) {
 		err := runGitopsUpdateDeployment(validConfiguration, runnerMock, gitUtilsMock, &filesMock{})
 		assert.NoError(t, err)
 		assert.Equal(t, validConfiguration.BranchName, gitUtilsMock.changedBranch)
-		assert.Equal(t, expectedYaml, gitUtilsMock.savedFile)
+		assert.Len(t, gitUtilsMock.savedFiles, 1)
+		assert.Equal(t, expectedYaml, gitUtilsMock.savedFiles[0])
 		assert.Equal(t, "This is the commit message", gitUtilsMock.commitMessage)
 		assert.Equal(t, "kubectl", runnerMock.executable)
 		assert.Equal(t, "patch", runnerMock.params[0])
@ -123,7 +124,8 @@ func TestRunGitopsUpdateDeploymentWithKubectl(t *testing.T) {
 		err := runGitopsUpdateDeployment(&configuration, runnerMock, gitUtilsMock, &filesMock{})
 		assert.NoError(t, err)
 		assert.Equal(t, validConfiguration.BranchName, gitUtilsMock.changedBranch)
-		assert.Equal(t, expectedYaml, gitUtilsMock.savedFile)
+		assert.Len(t, gitUtilsMock.savedFiles, 1)
+		assert.Equal(t, expectedYaml, gitUtilsMock.savedFiles[0])
 		assert.Equal(t, "Updated myregistry.com/myFancyContainer to version 1337", gitUtilsMock.commitMessage)
 		assert.Equal(t, "kubectl", runnerMock.executable)
 		assert.Equal(t, "patch", runnerMock.params[0])
@ -145,7 +147,8 @@ func TestRunGitopsUpdateDeploymentWithKubectl(t *testing.T) {
 		err := runGitopsUpdateDeployment(&configuration, runnerMock, gitUtilsMock, &filesMock{})
 		assert.NoError(t, err)
 		assert.Equal(t, configuration.BranchName, gitUtilsMock.changedBranch)
-		assert.Equal(t, expectedYaml, gitUtilsMock.savedFile)
+		assert.Len(t, gitUtilsMock.savedFiles, 1)
+		assert.Equal(t, expectedYaml, gitUtilsMock.savedFiles[0])
 		assert.Equal(t, "kubectl", runnerMock.executable)
 		assert.Equal(t, "patch", runnerMock.params[0])
 		assert.Equal(t, "--local", runnerMock.params[1])
@ -166,7 +169,8 @@ func TestRunGitopsUpdateDeploymentWithKubectl(t *testing.T) {
 		err := runGitopsUpdateDeployment(&configuration, runnerMock, gitUtilsMock, &filesMock{})
 		assert.NoError(t, err)
 		assert.Equal(t, configuration.BranchName, gitUtilsMock.changedBranch)
-		assert.Equal(t, expectedYaml, gitUtilsMock.savedFile)
+		assert.Len(t, gitUtilsMock.savedFiles, 1)
+		assert.Equal(t, expectedYaml, gitUtilsMock.savedFiles[0])
 		assert.Equal(t, "kubectl", runnerMock.executable)
 		assert.Equal(t, "patch", runnerMock.params[0])
 		assert.Equal(t, "--local", runnerMock.params[1])
@ -187,7 +191,8 @@ func TestRunGitopsUpdateDeploymentWithKubectl(t *testing.T) {
 		err := runGitopsUpdateDeployment(&configuration, runnerMock, gitUtilsMock, &filesMock{})
 		assert.NoError(t, err)
 		assert.Equal(t, configuration.BranchName, gitUtilsMock.changedBranch)
-		assert.Equal(t, expectedYaml, gitUtilsMock.savedFile)
+		assert.Len(t, gitUtilsMock.savedFiles, 1)
+		assert.Equal(t, expectedYaml, gitUtilsMock.savedFiles[0])
 		assert.Equal(t, "kubectl", runnerMock.executable)
 		assert.Equal(t, "patch", runnerMock.params[0])
 		assert.Equal(t, "--local", runnerMock.params[1])
@ -195,6 +200,35 @@ func TestRunGitopsUpdateDeploymentWithKubectl(t *testing.T) {
 		assert.Equal(t, `--patch={"spec":{"template":{"spec":{"containers":[{"name":"myContainer","image":"myregistry.com/myFancyContainer:1337"}]}}}}`, runnerMock.params[3])
 		assert.True(t, strings.Contains(runnerMock.params[4], filepath.Join("dir1/dir2/depl.yaml")))
 	})
+	t.Run("successful run with glob", func(t *testing.T) {
+		t.Parallel()
+		gitUtilsMock := &gitUtilsMock{}
+		runnerMock := &gitOpsExecRunnerMock{}
+		fsMock := &filesMock{}
+		runnerMock.expectedYaml = expectedYaml
+		var configuration = *validConfiguration
+		configuration.FilePath = "glob/kubectl/**/*.yaml"
+
+		err := runGitopsUpdateDeployment(&configuration, runnerMock, gitUtilsMock, fsMock)
+		assert.NoError(t, err)
+		assert.Equal(t, validConfiguration.BranchName, gitUtilsMock.changedBranch)
+		assert.Len(t, gitUtilsMock.savedFiles, 2)
+		assert.Equal(t, expectedYaml, gitUtilsMock.savedFiles[0])
+		assert.Equal(t, expectedYaml, gitUtilsMock.savedFiles[1])
+
+		assert.Equal(t, "kubectl", runnerMock.executable)
+		assert.Equal(t, "patch", runnerMock.params[0])
+		assert.Equal(t, "--local", runnerMock.params[1])
+		assert.Equal(t, "--output=yaml", runnerMock.params[2])
+		assert.Equal(t, `--patch={"spec":{"template":{"spec":{"containers":[{"name":"myContainer","image":"myregistry.com/myFancyContainer:1337"}]}}}}`, runnerMock.params[3])
+		assert.True(t, strings.Contains(runnerMock.params[4], filepath.Join("glob/kubectl/dir1/depl.yaml")))
+
+		assert.Equal(t, "patch", runnerMock.params[5])
+		assert.Equal(t, "--local", runnerMock.params[6])
+		assert.Equal(t, "--output=yaml", runnerMock.params[7])
+		assert.Equal(t, `--patch={"spec":{"template":{"spec":{"containers":[{"name":"myContainer","image":"myregistry.com/myFancyContainer:1337"}]}}}}`, runnerMock.params[8])
+		assert.True(t, strings.Contains(runnerMock.params[9], filepath.Join("glob/kubectl/dir2/depl.yaml")))
+	})

 	t.Run("missing ContainerName", func(t *testing.T) {
 		t.Parallel()
@ -229,7 +263,7 @@ func TestRunGitopsUpdateDeploymentWithKubectl(t *testing.T) {
 		t.Parallel()
 		gitUtils := &gitUtilsMock{failOnClone: true}

-		err := runGitopsUpdateDeployment(validConfiguration, &gitOpsExecRunnerMock{}, gitUtils, &filesMock{})
+		err := runGitopsUpdateDeployment(validConfiguration, &gitOpsExecRunnerMock{expectedYaml: expectedYaml}, gitUtils, &filesMock{})
 		assert.EqualError(t, err, "repository could not get prepared: failed to plain clone repository: error on clone")
 	})

@ -269,7 +303,7 @@ func TestRunGitopsUpdateDeploymentWithKubectl(t *testing.T) {
 		t.Parallel()
 		fileUtils := &filesMock{failOnWrite: true}

-		err := runGitopsUpdateDeployment(validConfiguration, &gitOpsExecRunnerMock{}, &gitUtilsMock{}, fileUtils)
+		err := runGitopsUpdateDeployment(validConfiguration, &gitOpsExecRunnerMock{expectedYaml: expectedYaml}, &gitUtilsMock{}, fileUtils)
 		assert.EqualError(t, err, "failed to write file: error appeared")
 	})

@ -333,12 +367,13 @@ func TestRunGitopsUpdateDeploymentWithHelm(t *testing.T) {
 		err := runGitopsUpdateDeployment(validConfiguration, runnerMock, gitUtilsMock, &filesMock{})
 		assert.NoError(t, err)
 		assert.Equal(t, validConfiguration.BranchName, gitUtilsMock.changedBranch)
-		assert.Equal(t, expectedYaml, gitUtilsMock.savedFile)
+		assert.Len(t, gitUtilsMock.savedFiles, 1)
+		assert.Equal(t, "---\n"+expectedYaml, gitUtilsMock.savedFiles[0])
 		assert.Equal(t, "This is the commit message", gitUtilsMock.commitMessage)
 		assert.Equal(t, "helm", runnerMock.executable)
 		assert.Equal(t, "template", runnerMock.params[0])
 		assert.Equal(t, "myFancyDeployment", runnerMock.params[1])
-		assert.Equal(t, filepath.Join(".", "helm"), runnerMock.params[2])
+		assert.Equal(t, filepath.Join(gitUtilsMock.temporaryDirectory, "helm"), runnerMock.params[2])
 		assert.Equal(t, "--set=image.repository=myregistry.com/registry/containers/myFancyContainer", runnerMock.params[3])
 		assert.Equal(t, "--set=image.tag=1337", runnerMock.params[4])
 		assert.Equal(t, "--values", runnerMock.params[5])
@ -357,12 +392,13 @@ func TestRunGitopsUpdateDeploymentWithHelm(t *testing.T) {
 		err := runGitopsUpdateDeployment(&configuration, runnerMock, gitUtilsMock, &filesMock{})
 		assert.NoError(t, err)
 		assert.Equal(t, configuration.BranchName, gitUtilsMock.changedBranch)
-		assert.Equal(t, expectedYaml, gitUtilsMock.savedFile)
+		assert.Len(t, gitUtilsMock.savedFiles, 1)
+		assert.Equal(t, "---\n"+expectedYaml, gitUtilsMock.savedFiles[0])
 		assert.Equal(t, "Updated myregistry.com/registry/containers/myFancyContainer to version 1337", gitUtilsMock.commitMessage)
 		assert.Equal(t, "helm", runnerMock.executable)
 		assert.Equal(t, "template", runnerMock.params[0])
 		assert.Equal(t, "myFancyDeployment", runnerMock.params[1])
-		assert.Equal(t, filepath.Join(".", "helm"), runnerMock.params[2])
+		assert.Equal(t, filepath.Join(gitUtilsMock.temporaryDirectory, "helm"), runnerMock.params[2])
 		assert.Equal(t, "--set=image.repository=myregistry.com/registry/containers/myFancyContainer", runnerMock.params[3])
 		assert.Equal(t, "--set=image.tag=1337", runnerMock.params[4])
 		assert.Equal(t, "--values", runnerMock.params[5])
@ -381,11 +417,12 @@ func TestRunGitopsUpdateDeploymentWithHelm(t *testing.T) {
 		err := runGitopsUpdateDeployment(&configuration, runnerMock, gitUtilsMock, &filesMock{})
 		assert.NoError(t, err)
 		assert.Equal(t, configuration.BranchName, gitUtilsMock.changedBranch)
-		assert.Equal(t, expectedYaml, gitUtilsMock.savedFile)
+		assert.Len(t, gitUtilsMock.savedFiles, 1)
+		assert.Equal(t, "---\n"+expectedYaml, gitUtilsMock.savedFiles[0])
 		assert.Equal(t, "helm", runnerMock.executable)
 		assert.Equal(t, "template", runnerMock.params[0])
 		assert.Equal(t, "myFancyDeployment", runnerMock.params[1])
-		assert.Equal(t, filepath.Join(".", "helm"), runnerMock.params[2])
+		assert.Equal(t, filepath.Join(gitUtilsMock.temporaryDirectory, "helm"), runnerMock.params[2])
 		assert.Equal(t, "--set=image.repository=myregistry.com/registry/containers/myFancyContainer", runnerMock.params[3])
 		assert.Equal(t, "--set=image.tag=1337", runnerMock.params[4])
 		assert.Equal(t, "--values", runnerMock.params[5])
@ -404,14 +441,45 @@ func TestRunGitopsUpdateDeploymentWithHelm(t *testing.T) {
 		err := runGitopsUpdateDeployment(&configuration, runnerMock, gitUtilsMock, &filesMock{})
 		assert.NoError(t, err)
 		assert.Equal(t, configuration.BranchName, gitUtilsMock.changedBranch)
-		assert.Equal(t, expectedYaml, gitUtilsMock.savedFile)
+		assert.Len(t, gitUtilsMock.savedFiles, 1)
+		assert.Equal(t, "---\n"+expectedYaml, gitUtilsMock.savedFiles[0])
 		assert.Equal(t, "helm", runnerMock.executable)
 		assert.Equal(t, "template", runnerMock.params[0])
 		assert.Equal(t, "myFancyDeployment", runnerMock.params[1])
-		assert.Equal(t, filepath.Join(".", "helm"), runnerMock.params[2])
+		assert.Equal(t, filepath.Join(gitUtilsMock.temporaryDirectory, "helm"), runnerMock.params[2])
 		assert.Equal(t, "--set=image.repository=myregistry.com/registry/containers/myFancyContainer", runnerMock.params[3])
 		assert.Equal(t, "--set=image.tag=1337", runnerMock.params[4])
 	})
+	t.Run("successful run with glob", func(t *testing.T) {
+		t.Parallel()
+		gitUtilsMock := &gitUtilsMock{}
+		runnerMock := &gitOpsExecRunnerMock{}
+		fsMock := &filesMock{}
+		runnerMock.expectedYaml = expectedYaml
+		var configuration = *validConfiguration
+		configuration.ChartPath = "glob/helm/dir*/helm"
+		configuration.HelmValues = nil
+
+		err := runGitopsUpdateDeployment(&configuration, runnerMock, gitUtilsMock, fsMock)
+		assert.NoError(t, err)
+		assert.Equal(t, validConfiguration.BranchName, gitUtilsMock.changedBranch)
+		assert.Len(t, gitUtilsMock.savedFiles, 1)
+		assert.Equal(t, "---\n"+expectedYaml+"---\n"+expectedYaml, gitUtilsMock.savedFiles[0])
+		assert.Equal(t, "This is the commit message", gitUtilsMock.commitMessage)
+		assert.Equal(t, "helm", runnerMock.executable)
+
+		assert.Equal(t, "template", runnerMock.params[0])
+		assert.Equal(t, "myFancyDeployment", runnerMock.params[1])
+		assert.Equal(t, filepath.Join(gitUtilsMock.temporaryDirectory, "glob/helm/dir1/helm"), runnerMock.params[2])
+		assert.Equal(t, "--set=image.repository=myregistry.com/registry/containers/myFancyContainer", runnerMock.params[3])
+		assert.Equal(t, "--set=image.tag=1337", runnerMock.params[4])
+
+		assert.Equal(t, "template", runnerMock.params[5])
+		assert.Equal(t, "myFancyDeployment", runnerMock.params[6])
+		assert.Equal(t, filepath.Join(gitUtilsMock.temporaryDirectory, "glob/helm/dir2/helm"), runnerMock.params[7])
+		assert.Equal(t, "--set=image.repository=myregistry.com/registry/containers/myFancyContainer", runnerMock.params[8])
+		assert.Equal(t, "--set=image.tag=1337", runnerMock.params[9])
+	})

 	t.Run("erroneous URL", func(t *testing.T) {
 		t.Parallel()
@ -559,7 +627,8 @@ func TestRunGitopsUpdateDeploymentWithKustomize(t *testing.T) {
 		err := runGitopsUpdateDeployment(validConfiguration, runnerMock, gitUtilsMock, fsMock)
 		assert.NoError(t, err)
 		assert.Equal(t, validConfiguration.BranchName, gitUtilsMock.changedBranch)
-		assert.Equal(t, expectedKustomize, gitUtilsMock.savedFile)
+		assert.Len(t, gitUtilsMock.savedFiles, 1)
+		assert.Equal(t, expectedKustomize, gitUtilsMock.savedFiles[0])
 		assert.Equal(t, "This is the commit message", gitUtilsMock.commitMessage)
 		assert.Equal(t, "kustomize", runnerMock.executable)
 		assert.Equal(t, "edit", runnerMock.params[0])
@ -567,6 +636,32 @@ func TestRunGitopsUpdateDeploymentWithKustomize(t *testing.T) {
 		assert.Equal(t, "image", runnerMock.params[2])
 		assert.Equal(t, "myFancyDeployment=registry/containers/myFancyContainer:1337", runnerMock.params[3])
 	})
+	t.Run("successful run with glob", func(t *testing.T) {
+		t.Parallel()
+		gitUtilsMock := &gitUtilsMock{}
+		runnerMock := &gitOpsExecRunnerMock{}
+		fsMock := &filesMock{}
+		runnerMock.expectedYaml = expectedKustomize
+		var configuration = *validConfiguration
+		configuration.FilePath = "glob/kustomize/**/*.yaml"
+
+		err := runGitopsUpdateDeployment(&configuration, runnerMock, gitUtilsMock, fsMock)
+		assert.NoError(t, err)
+		assert.Equal(t, validConfiguration.BranchName, gitUtilsMock.changedBranch)
+		assert.Len(t, gitUtilsMock.savedFiles, 2)
+		assert.Equal(t, expectedKustomize, gitUtilsMock.savedFiles[0])
+		assert.Equal(t, expectedKustomize, gitUtilsMock.savedFiles[1])
+		assert.Equal(t, "This is the commit message", gitUtilsMock.commitMessage)
+		assert.Equal(t, "kustomize", runnerMock.executable)
+		assert.Equal(t, "edit", runnerMock.params[0])
+		assert.Equal(t, "set", runnerMock.params[1])
+		assert.Equal(t, "image", runnerMock.params[2])
+		assert.Equal(t, "myFancyDeployment=registry/containers/myFancyContainer:1337", runnerMock.params[3])
+		assert.Equal(t, "edit", runnerMock.params[4])
+		assert.Equal(t, "set", runnerMock.params[5])
+		assert.Equal(t, "image", runnerMock.params[6])
+		assert.Equal(t, "myFancyDeployment=registry/containers/myFancyContainer:1337", runnerMock.params[7])
+	})

 	t.Run("error on kustomize execution", func(t *testing.T) {
 		t.Parallel()
@ -595,6 +690,35 @@ func TestRunGitopsUpdateDeploymentWithKustomize(t *testing.T) {
 	})
 }

+func TestRunGitopsUpdateDeploymentWithGlobbing(t *testing.T) {
+	var validConfiguration = &gitopsUpdateDeploymentOptions{
+		Tool:           toolKubectl,
+		ContainerName:  "yes",
+		DeploymentName: "myFancyDeployment",
+	}
+
+	t.Run("globbing fails", func(t *testing.T) {
+		t.Parallel()
+		gitUtilsMock := &gitUtilsMock{}
+		runnerMock := &gitOpsExecRunnerMock{}
+		fsMock := &filesMock{failOnGlob: true}
+
+		err := runGitopsUpdateDeployment(validConfiguration, runnerMock, gitUtilsMock, fsMock)
+		assert.EqualError(t, err, "unable to expand globbing pattern: error appeared")
+	})
+	t.Run("globbing finds 0 files", func(t *testing.T) {
+		t.Parallel()
+		gitUtilsMock := &gitUtilsMock{skipClone: true}
+		runnerMock := &gitOpsExecRunnerMock{}
+		fsMock := &filesMock{}
+		var config = *validConfiguration
+		config.FilePath = "xxx"
+
+		err := runGitopsUpdateDeployment(&config, runnerMock, gitUtilsMock, fsMock)
+		assert.EqualError(t, err, "no matching files found for provided globbing pattern")
+	})
+}
+
 type gitOpsExecRunnerMock struct {
 	out                 io.Writer
 	params              []string
@ -621,15 +745,21 @@ func (e *gitOpsExecRunnerMock) RunExecutable(executable string, params ...string
 		return errors.New("error happened")
 	}
 	e.executable = executable
-	e.params = params
+	e.params = append(e.params, params...)
+	if executable == "kustomize" {
+		return fileUtils.FileWrite(filepath.Join(e.dir, "kustomization.yaml"), []byte(e.expectedYaml), 0755)
+
+	} else {
 		_, err := e.out.Write([]byte(e.expectedYaml))
 		return err
+	}
 }

 type filesMock struct {
 	failOnCreation bool
 	failOnDeletion bool
 	failOnWrite    bool
+	failOnGlob     bool
 	path           string
 }

@ -655,8 +785,15 @@ func (f *filesMock) RemoveAll(path string) error {
 	return piperutils.Files{}.RemoveAll(path)
 }

+func (f *filesMock) Glob(pattern string) (matches []string, err error) {
+	if f.failOnGlob {
+		return nil, errors.New("error appeared")
+	}
+	return piperutils.Files{}.Glob(pattern)
+}
+
 type gitUtilsMock struct {
-	savedFile          string
+	savedFiles         []string
 	changedBranch      string
 	commitMessage      string
 	temporaryDirectory string
@ -664,6 +801,7 @@ type gitUtilsMock struct {
 	failOnChangeBranch bool
 	failOnCommit       bool
 	failOnPush         bool
+	skipClone          bool
 }

 func (gitUtilsMock) GetWorktree() (*git.Worktree, error) {
@ -678,19 +816,21 @@ func (v *gitUtilsMock) ChangeBranch(branchName string) error {
 	return nil
 }

-func (v *gitUtilsMock) CommitSingleFile(newFile string, commitMessage string, _ string) (plumbing.Hash, error) {
+func (v *gitUtilsMock) CommitFiles(newFiles []string, commitMessage string, _ string) (plumbing.Hash, error) {
 	if v.failOnCommit {
 		return [20]byte{}, errors.New("error on commit")
 	}

 	v.commitMessage = commitMessage

+	for _, newFile := range newFiles {
 		filepath := filepath.Join(v.temporaryDirectory, newFile)
 		fileContent, err := piperutils.Files{}.FileRead(filepath)
 		if err != nil {
 			return [20]byte{}, errors.New("could not find file " + filepath)
 		}
-	v.savedFile = string(fileContent)
+		v.savedFiles = append(v.savedFiles, string(fileContent))
+	}
 	return [20]byte{123}, nil
 }

@ -702,22 +842,33 @@ func (v gitUtilsMock) PushChangesToRepository(string, string) error {
 }

 func (v *gitUtilsMock) PlainClone(_, _, _, directory string) error {
+	if v.skipClone {
+		return nil
+	}
 	if v.failOnClone {
 		return errors.New("error on clone")
 	}
 	v.temporaryDirectory = directory
+
 	err := piperutils.Files{}.MkdirAll(filepath.Join(directory, "dir1/dir2"), 0755)
 	if err != nil {
 		return err
 	}
 	err = piperutils.Files{}.FileWrite(filepath.Join(directory, "dir1/dir2/depl.yaml"), []byte(existingYaml), 0755)
-	if err != nil {
-		return err
-	}
+	err = piperutils.Files{}.MkdirAll(filepath.Join(directory, "glob/kubectl/dir1"), 0755)
+	err = piperutils.Files{}.MkdirAll(filepath.Join(directory, "glob/kubectl/dir2"), 0755)
+	err = piperutils.Files{}.FileWrite(filepath.Join(directory, "glob/kubectl/dir1/depl.yaml"), []byte(existingYaml), 0755)
+	err = piperutils.Files{}.FileWrite(filepath.Join(directory, "glob/kubectl/dir2/depl.yaml"), []byte(existingYaml), 0755)
+
+	err = piperutils.Files{}.MkdirAll(filepath.Join(directory, "helm"), 0755)
+	err = piperutils.Files{}.MkdirAll(filepath.Join(directory, "glob/helm/dir1/helm"), 0755)
+	err = piperutils.Files{}.MkdirAll(filepath.Join(directory, "glob/helm/dir2/helm"), 0755)
+
 	err = piperutils.Files{}.FileWrite(filepath.Join(directory, "kustomization.yaml"), []byte(existingKustomize), 0755)
-	if err != nil {
-		return err
-	}
+	err = piperutils.Files{}.MkdirAll(filepath.Join(directory, "glob/kustomize/dir1"), 0755)
+	err = piperutils.Files{}.MkdirAll(filepath.Join(directory, "glob/kustomize/dir2"), 0755)
+	err = piperutils.Files{}.FileWrite(filepath.Join(directory, "glob/kustomize/dir1/kustomization.yaml"), []byte(existingKustomize), 0755)
+	err = piperutils.Files{}.FileWrite(filepath.Join(directory, "glob/kustomize/dir2/kustomization.yaml"), []byte(existingKustomize), 0755)
 	return nil
 }

--- a/resources/metadata/gitopsUpdateDeployment.yaml
+++ b/resources/metadata/gitopsUpdateDeployment.yaml
@ -7,8 +7,9 @@ metadata:
    It can for example be used for GitOps scenarios where the update of the manifests triggers an update of the corresponding deployment in Kubernetes.

    As of today, it supports the update of deployment yaml files via kubectl patch, update a whole helm template and kustomize.
+
    For *kubectl* the container inside the yaml must be described within the following hierarchy: `{"spec":{"template":{"spec":{"containers":[{...}]}}}}`
-    For *helm* the whole template is generated into a file and uploaded into the repository.
+    For *helm* the whole template is generated into a single file (`filePath`) and uploaded into the repository.
    For *kustomize* the `images` section will be update with the current image.


@ -81,9 +82,9 @@ spec:
        description: |
          Relative path in the git repository to the deployment descriptor file that shall be updated. For different tools this has different semantics:

-           * `kubectl` - path to the `deployment.yaml` that should be patched.
-           * `helm` - not used. Please use `chartPath` instead.
-           * `kustomize` - path to the `kustomization.yaml`.
+           * `kubectl` - path to the `deployment.yaml` that should be patched. Supports globbing.
+           * `helm` - path where the helm chart will be generated into. Here no globbing is supported.
+           * `kustomize` - path to the `kustomization.yaml`. Supports globbing.
        scope:
          - PARAMETERS
          - STAGES
@ -130,7 +131,7 @@ spec:
        aliases:
          - name: helmChartPath
        type: string
-        description: Defines the chart path for deployments using helm.
+        description: Defines the chart path for deployments using helm. Globbing is supported to merge multiple charts into one resource.yaml that will be commited.
        scope:
          - PARAMETERS
          - STAGES