helm

Documentation

Overview

Package helm provides common functionalities for testing helm charts, such as calling out to the helm client.

Index

• func Delete(t *testing.T, options *Options, releaseName string, purge bool)
• func DeleteE(t *testing.T, options *Options, releaseName string, purge bool) error
• func Install(t *testing.T, options *Options, chart string, releaseName string)
• func InstallE(t *testing.T, options *Options, chart string, releaseName string) error
• func RenderTemplate(t *testing.T, options *Options, chartDir string, templateFiles []string) string
• func RenderTemplateE(t *testing.T, options *Options, chartDir string, templateFiles []string) (string, error)
• func Rollback(t *testing.T, options *Options, releaseName string, revision string)
• func RollbackE(t *testing.T, options *Options, releaseName string, revision string) error
• func RunHelmCommandAndGetOutputE(t *testing.T, options *Options, cmd string, additionalArgs ...string) (string, error)
• func UnmarshalK8SYaml(t *testing.T, yamlData string, destinationObj interface{})
• func UnmarshalK8SYamlE(t *testing.T, yamlData string, destinationObj interface{}) error
• func Upgrade(t *testing.T, options *Options, chart string, releaseName string)
• func UpgradeE(t *testing.T, options *Options, chart string, releaseName string) error
• type ChartNotFoundError
  • func (err ChartNotFoundError) Error() string
• type Options
• type SetFileNotFoundError
  • func (err SetFileNotFoundError) Error() string
• type TemplateFileNotFoundError
  • func (err TemplateFileNotFoundError) Error() string
• type ValuesFileNotFoundError
  • func (err ValuesFileNotFoundError) Error() string

Functions

func Delete

func Delete(t *testing.T, options *Options, releaseName string, purge bool)

Delete will delete the provided release from Tiller. If you set purge to true, Tiller will delete the release object as well so that the release name can be reused. This will fail the test if there is an error.

func DeleteE

func DeleteE(t *testing.T, options *Options, releaseName string, purge bool) error

DeleteE will delete the provided release from Tiller. If you set purge to true, Tiller will delete the release object as well so that the release name can be reused.

func Install

func Install(t *testing.T, options *Options, chart string, releaseName string)

Install will install the selected helm chart with the provided options under the given release name. This will fail the test if there is an error.

func InstallE

func InstallE(t *testing.T, options *Options, chart string, releaseName string) error

InstallE will install the selected helm chart with the provided options under the given release name.

func RenderTemplate

func RenderTemplate(t *testing.T, options *Options, chartDir string, templateFiles []string) string

RenderTemplate runs `helm template` to render the template given the provided options and returns stdout/stderr from the template command. If you pass in templateFiles, this will only render those templates. This function will fail the test if there is an error rendering the template.

func RenderTemplateE

func RenderTemplateE(t *testing.T, options *Options, chartDir string, templateFiles []string) (string, error)

RenderTemplateE runs `helm template` to render the template given the provided options and returns stdout/stderr from the template command. If you pass in templateFiles, this will only render those templates.

func Rollback

func Rollback(t *testing.T, options *Options, releaseName string, revision string)

Rollback will downgrade the release to the specified version. This will fail the test if there is an error.

func RollbackE

func RollbackE(t *testing.T, options *Options, releaseName string, revision string) error

RollbackE will downgrade the release to the specified version

func RunHelmCommandAndGetOutputE

func RunHelmCommandAndGetOutputE(t *testing.T, options *Options, cmd string, additionalArgs ...string) (string, error)

RunHelmCommandAndGetOutputE runs helm with the given arguments and options and returns stdout/stderr.

func UnmarshalK8SYaml

func UnmarshalK8SYaml(t *testing.T, yamlData string, destinationObj interface{})

UnmarshalK8SYaml is the same as UnmarshalK8SYamlE, but will fail the test if there is an error.

func UnmarshalK8SYamlE

func UnmarshalK8SYamlE(t *testing.T, yamlData string, destinationObj interface{}) error

UnmarshalK8SYamlE can be used to take template outputs and unmarshal them into the corresponding client-go struct. For example, suppose you render the template into a Deployment object. You can unmarshal the yaml as follows:

var deployment appsv1.Deployment UnmarshalK8SYamlE(t, renderedOutput, &deployment)

At the end of this, the deployment variable will be populated.

func Upgrade

func Upgrade(t *testing.T, options *Options, chart string, releaseName string)

Upgrade will upgrade the release and chart will be deployed with the lastest configuration. This will fail the test if there is an error.

func UpgradeE

func UpgradeE(t *testing.T, options *Options, chart string, releaseName string) error

UpgradeE will upgrade the release and chart will be deployed with the lastest configuration.

Types

type ChartNotFoundError

type ChartNotFoundError struct {
	Path string
}

ChartNotFoundError is returned when a provided chart dir is not found

func (ChartNotFoundError) Error

func (err ChartNotFoundError) Error() string

type Options

type Options struct {
	ValuesFiles    []string            // List of values files to render.
	SetValues      map[string]string   // Values that should be set via the command line.
	SetStrValues   map[string]string   // Values that should be set via the command line explicitly as `string` types.
	SetFiles       map[string]string   // Values that should be set from a file. These should be file paths. Use to avoid logging secrets.
	KubectlOptions *k8s.KubectlOptions // KubectlOptions to control how to authenticate to kubernetes cluster. `nil` => use defaults.
	HomePath       string              // The path to the helm home to use when calling out to helm. Empty string means use default ($HOME/.helm).
	EnvVars        map[string]string   // Environment variables to set when running helm
}

type SetFileNotFoundError

type SetFileNotFoundError struct {
	Path string
}

SetFileNotFoundError is returned when a provided set file input is not found on the host path.

func (SetFileNotFoundError) Error

func (err SetFileNotFoundError) Error() string

type TemplateFileNotFoundError

type TemplateFileNotFoundError struct {
	Path     string
	ChartDir string
}

TemplateFileNotFoundError is returned when a provided template file input is not found in the chart

func (TemplateFileNotFoundError) Error

func (err TemplateFileNotFoundError) Error() string

type ValuesFileNotFoundError

type ValuesFileNotFoundError struct {
	Path string
}

ValuesFileNotFoundError is returned when a provided values file input is not found on the host path.

func (ValuesFileNotFoundError) Error

func (err ValuesFileNotFoundError) Error() string