helmer

package
v3.0.0 Latest Latest
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 Go to latest Published: Oct 2, 2020 License: Apache-2.0 Imports: 25 Imported by: 9

Documentation

Index

Constants

View Source 
const (
	// ChartFileName file name for a chart
	ChartFileName = "Chart.yaml"
	// RequirementsFileName the file name for helm requirements
	RequirementsFileName = "requirements.yaml"
	// SecretsFileName the file name for secrets
	SecretsFileName = "secrets.yaml"
	// ValuesFileName the file name for values
	ValuesFileName = "values.yaml"
	// ValuesTemplateFileName a templated values.yaml file which can refer to parameter expressions
	ValuesTemplateFileName = "values.tmpl.yaml"
	// TemplatesDirName is the default name for the templates directory
	TemplatesDirName = "templates"

	// ParametersYAMLFile contains logical parameters (values or secrets) which can be fetched from a Secret URL or
	// inlined if not a secret which can be referenced from a 'values.yaml` file via a `{{ .Parameters.foo.bar }}` expression
	ParametersYAMLFile = "parameters.yaml"

	// FakeChartmusuem is the url for the fake chart museum used in tests
	FakeChartmusuem = "http://fake.chartmuseum"

	// DefaultEnvironmentChartDir is the default environment path where charts are stored
	DefaultEnvironmentChartDir = "env"

	//RepoVaultPath is the path to the repo credentials in Vault
	RepoVaultPath = "helm/repos"

	// JX3ChartRepository the default charts repo for the jx3 charts
	JX3ChartRepository = "https://storage.googleapis.com/jenkinsxio/charts"

	// AnnotationChartName stores the chart name
	AnnotationChartName = "jenkins.io/chart"
	// AnnotationAppVersion stores the chart's app version
	AnnotationAppVersion = "jenkins.io/chart-app-version"
	// AnnotationAppDescription stores the chart's app version
	AnnotationAppDescription = "jenkins.io/chart-description"
	// AnnotationAppRepository stores the chart's app repository
	AnnotationAppRepository = "jenkins.io/chart-repository"

	// LabelReleaseName stores the chart release name
	LabelReleaseName = "jenkins.io/chart-release"

	// LabelNamespace stores the chart namespace for cluster wide resources
	LabelNamespace = "jenkins.io/namespace"

	// LabelReleaseChartVersion stores the version of a chart installation in a label
	LabelReleaseChartVersion = "jenkins.io/version"
	// LabelAppName stores the chart's app name
	LabelAppName = "jenkins.io/app-name"
	// LabelAppVersion stores the chart's app version
	LabelAppVersion = "jenkins.io/app-version"
)

Variables

View Source 
var DefaultValuesTreeIgnores = []string{
	"templates/*",
}

DefaultValuesTreeIgnores is the default set of ignored files for collapsing the values tree which are used if ignores is nil

Functions

func AddHelmRepoIfMissing 

func AddHelmRepoIfMissing(helmer Helmer, helmURL, repoName, username, password string) (string, error)

AddHelmRepoIfMissing will add the helm repo if there is no helm repo with that url present. It will generate the repoName from the url (using the host name) if the repoName is empty. The repo name may have a suffix added in order to prevent name collisions, and is returned for this reason. The username and password will be stored in vault for the URL (if vault is enabled).

func AppendMyValues 

func AppendMyValues(valueFiles []string) ([]string, error)

func CombineValueFilesToFile 

func CombineValueFilesToFile(outFile string, inputFiles []string, chartName string, extraValues map[string]interface{}) error

CombineValueFilesToFile iterates through the input files and combines them into a single Values object and then write it to the output file nested inside the chartName

func FindChartFileName 

func FindChartFileName(dir string) (string, error)

FindChartFileName returns the default chart.yaml file name

func FindRequirementsFileName 

func FindRequirementsFileName(dir string) (string, error)

FindRequirementsFileName returns the default requirements.yaml file name

func FindTemplatesDirName 

func FindTemplatesDirName(dir string) (string, error)

FindTemplatesDirName returns the default templates/ dir name

func FindValuesFileName 

func FindValuesFileName(dir string) (string, error)

FindValuesFileName returns the default values.yaml file name

func FindValuesFileNameForChart 

func FindValuesFileNameForChart(dir string, chartName string) (string, error)

FindValuesFileNameForChart returns the values.yaml file name for a given chart within the environment or the default if the chart name is empty

func GenerateReadmeForChart 

func GenerateReadmeForChart(name string, version string, description string, chartRepo string,
	gitRepo string, releaseNotesURL string, appReadme string) string

GenerateReadmeForChart generates a string that can be used as a README.MD, and includes info on the chart.

func HandleExternalFileRefs 

func HandleExternalFileRefs(element interface{}, possibles map[string]string, jsonPath string,
	handler func(path string, element map[string]interface{}, key string) error) error

HandleExternalFileRefs recursively scans the element map structure, looking for nested maps. If it finds keys that match any key-value pair in possibles it will call the handler. The jsonPath is used for referencing the path in the map structure when reporting errors.

func InspectChart 

func InspectChart(chart string, version string, repo string, username string, password string,
	helmer Helmer, inspector func(dir string) error) error

InspectChart fetches the specified chart in a repo using helmer, and then calls the closure on it, before cleaning up

func IsLocal 

func IsLocal(chart string) bool

IsLocal returns whether this chart is being installed from the local filesystem or not

func IsZeroOfUnderlyingType 

func IsZeroOfUnderlyingType(x interface{}) bool

IsZeroOfUnderlyingType checks if the underlying type of the interface is set to it's zero value

func LoadChart 

func LoadChart(data []byte) (*chart.Metadata, error)

LoadChart loads the requirements from some data

func LoadChartFile 

func LoadChartFile(fileName string) (*chart.Metadata, error)

LoadChartFile loads the chart file or creates empty chart if the file does not exist

func LoadChartName 

func LoadChartName(chartFile string) (string, error)

func LoadChartNameAndVersion 

func LoadChartNameAndVersion(chartFile string) (string, string, error)

func LoadParametersValuesFile 

func LoadParametersValuesFile(dir string) (map[string]interface{}, error)

LoadParametersValuesFile loads the parameters values file or creates empty map if the file does not exist

func LoadTemplatesDir 

func LoadTemplatesDir(dirName string) (map[string]string, error)

LoadTemplatesDir loads the files in the templates dir or creates empty map if none exist

func LoadValues 

func LoadValues(data []byte) (map[string]interface{}, error)

LoadValues loads the values from some data

func LoadValuesFile 

func LoadValuesFile(fileName string) (map[string]interface{}, error)

LoadValuesFile loads the values file or creates empty map if the file does not exist

func ModifyChart 

func ModifyChart(chartFile string, fn func(chart *chart.Metadata) error) error

ModifyChart modifies the given chart using a callback

func RenderReleasesAsTable 

func RenderReleasesAsTable(releases map[string]ReleaseSummary, sortedKeys []string) (string, error)

RenderReleasesAsTable lists the current releases in a table

func SaveFile 

func SaveFile(fileName string, contents interface{}) error

SaveFile saves contents (a pointer to a data structure) to a file

func SetChartVersion 

func SetChartVersion(chartFile string, version string) error

SetChartVersion modifies the given chart file to update the version

func SetValuesToMap 

func SetValuesToMap(setValues []string) map[string]interface{}

SetValuesToMap converts the set of values of the form "foo.bar=123" into a helm values.yaml map structure

func UpdateImagesInValuesToNewVersion 

func UpdateImagesInValuesToNewVersion(data []byte, name string, newVersion string) ([]byte, []string)

UpdateImagesInValuesToNewVersion update a (values) file, replacing that start with "Image: <name>:" to "Image: <name>:<newVersion>", returning the oldVersions

func UpdateRequirementsToNewVersion 

func UpdateRequirementsToNewVersion(requirements *Requirements, name string, newVersion string) []string

UpdateRequirementsToNewVersion update dependencies with name to newVersion, returning the oldVersions

Types

type ChartSummary 

type ChartSummary struct {
	Name         string
	ChartVersion string
	AppVersion   string
	Description  string
}

ChartSummary contains a chart summary

func FindLatestChart 

func FindLatestChart(name string, helmer Helmer) (*ChartSummary, error)

FindLatestChart uses helmer to find the latest chart for name

type DepSorter 

type DepSorter []*Dependency

DepSorter Used to avoid merge conflicts by sorting deps by name

func (DepSorter) Len 

func (a DepSorter) Len() int

func (DepSorter) Less 

func (a DepSorter) Less(i, j int) bool

func (DepSorter) Swap 

func (a DepSorter) Swap(i, j int)

type Dependency 

type Dependency struct {
	// Name is the name of the dependency.
	//
	// This must mach the name in the dependency's Chart.yaml.
	Name string `json:"name"`
	// Version is the version (range) of this chart.
	//
	// A lock file will always produce a single version, while a dependency
	// may contain a semantic version range.
	Version string `json:"version,omitempty"`
	// The URL to the repository.
	//
	// Appending `index.yaml` to this string should result in a URL that can be
	// used to fetch the repository index.
	Repository string `json:"repository"`
	// A yaml path that resolves to a boolean, used for enabling/disabling charts (e.g. subchart1.enabled )
	Condition string `json:"condition,omitempty"`
	// Tags can be used to group charts for enabling/disabling together
	Tags []string `json:"tags,omitempty"`
	// Enabled bool determines if chart should be loaded
	Enabled bool `json:"enabled,omitempty"`
	// ImportValues holds the mapping of source values to parent key to be imported. Each item can be a
	// string or pair of child/parent sublist items.
	ImportValues []interface{} `json:"import-values,omitempty"`
	// Alias usable alias to be used for the chart
	Alias string `json:"alias,omitempty"`
}

Dependency describes a chart upon which another chart depends.

Dependencies can be used to express developer intent, or to capture the state of a chart.

type ErrNoRequirementsFile 

type ErrNoRequirementsFile error

ErrNoRequirementsFile to detect error condition

type FakeHelmer 

type FakeHelmer struct {
	CWD   string
	Repos map[string]string
}

FakeHelmer a fake helmer

func (*FakeHelmer) AddRepo 

func (f *FakeHelmer) AddRepo(repo, repoURL, username, password string) error

func (*FakeHelmer) BuildDependency 

func (f *FakeHelmer) BuildDependency() error

func (*FakeHelmer) DecryptSecrets 

func (f *FakeHelmer) DecryptSecrets(location string) error

func (*FakeHelmer) DeleteRelease 

func (f *FakeHelmer) DeleteRelease(ns, releaseName string, purge bool) error

func (*FakeHelmer) Env 

func (f *FakeHelmer) Env() map[string]string

func (*FakeHelmer) FetchChart 

func (f *FakeHelmer) FetchChart(chart, version string, untar bool, untardir, repo, username,
	password string) error

func (*FakeHelmer) FindChart 

func (f *FakeHelmer) FindChart() (string, error)

func (*FakeHelmer) HelmBinary 

func (f *FakeHelmer) HelmBinary() string

func (*FakeHelmer) InstallChart 

func (f *FakeHelmer) InstallChart(chart, releaseName, ns, version string, timeout int,
	values, valueStrings, valueFiles []string, repo, username, password string) error

func (*FakeHelmer) IsRepoMissing 

func (f *FakeHelmer) IsRepoMissing(repoURL string) (bool, string, error)

func (*FakeHelmer) Lint 

func (f *FakeHelmer) Lint(valuesFiles []string) (string, error)

func (*FakeHelmer) ListReleases 

func (f *FakeHelmer) ListReleases(ns string) (map[string]ReleaseSummary, []string, error)

func (*FakeHelmer) ListRepos 

func (f *FakeHelmer) ListRepos() (map[string]string, error)

func (*FakeHelmer) PackageChart 

func (f *FakeHelmer) PackageChart() error

func (*FakeHelmer) RemoveRepo 

func (f *FakeHelmer) RemoveRepo(repo string) error

func (*FakeHelmer) RemoveRequirementsLock 

func (f *FakeHelmer) RemoveRequirementsLock() error

func (*FakeHelmer) SearchCharts 

func (f *FakeHelmer) SearchCharts(filter string, allVersions bool) ([]ChartSummary, error)

func (*FakeHelmer) SetCWD 

func (f *FakeHelmer) SetCWD(dir string)

func (*FakeHelmer) StatusRelease 

func (f *FakeHelmer) StatusRelease(ns, releaseName string) error

func (*FakeHelmer) StatusReleaseWithOutput 

func (f *FakeHelmer) StatusReleaseWithOutput(ns, releaseName, format string) (string, error)

func (*FakeHelmer) Template 

func (f *FakeHelmer) Template(chartDir, releaseName, ns, outputDir string, upgrade bool, values, valueStrings, valueFiles []string) error

func (*FakeHelmer) UpdateRepo 

func (f *FakeHelmer) UpdateRepo() error

func (*FakeHelmer) UpgradeChart 

func (f *FakeHelmer) UpgradeChart(chart, releaseName, ns, version string, install bool, timeout int, force, wait bool,
	values, valueStrings, valueFiles []string, repo, username, password string) error

func (*FakeHelmer) Version 

func (f *FakeHelmer) Version(tls bool) (string, error)

type HelmCLI 

type HelmCLI struct {
	Binary  string
	CWD     string
	Runner  cmdrunner.CommandRunner
	Command *cmdrunner.Command
	Debug   bool
}

HelmCLI implements common helm actions based on helm CLI

func NewHelmCLI 

func NewHelmCLI(cwd string) *HelmCLI

NewHelmCLI creates a new CLI

func NewHelmCLIWithRunner 

func NewHelmCLIWithRunner(runner cmdrunner.CommandRunner, binary, cwd string, debug bool) *HelmCLI

NewHelmCLIWithRunner creates a new HelmCLI interface for the given runner

func (*HelmCLI) AddRepo 

func (h *HelmCLI) AddRepo(repoName, repoURL, username, password string) error

AddRepo adds a new helm repo with the given name and URL

func (*HelmCLI) BuildDependency 

func (h *HelmCLI) BuildDependency() error

BuildDependency builds the helm dependencies of the helm chart from the current working directory

func (*HelmCLI) DecryptSecrets 

func (h *HelmCLI) DecryptSecrets(location string) error

DecryptSecrets decrypt secrets

func (*HelmCLI) DeleteRelease 

func (h *HelmCLI) DeleteRelease(ns, releaseName string, purge bool) error

DeleteRelease removes the given release

func (*HelmCLI) Env 

func (h *HelmCLI) Env() map[string]string

Env returns the environment variables for the helmer

func (*HelmCLI) FetchChart 

func (h *HelmCLI) FetchChart(chart, version string, untar bool, untardir, repo,
	username, password string) error

FetchChart fetches a Helm Chart

func (*HelmCLI) FindChart 

func (h *HelmCLI) FindChart() (string, error)

FindChart find a chart in the current working directory, if no chart file is found an error is returned

func (*HelmCLI) HelmBinary 

func (h *HelmCLI) HelmBinary() string

HelmBinary return the configured helm CLI

func (*HelmCLI) Init 

func (h *HelmCLI) Init(clientOnly bool, serviceAccount, tillerNamespace string, upgrade bool) error

Init executes the helm init command according with the given flags

func (*HelmCLI) InstallChart 

func (h *HelmCLI) InstallChart(chart, releaseName, ns, version string, timeout int,
	values, valueStrings, valueFiles []string, repo, username, password string) error

InstallChart installs a helm chart according with the given flags

func (*HelmCLI) IsRepoMissing 

func (h *HelmCLI) IsRepoMissing(repoURL string) (bool, string, error)

IsRepoMissing checks if the repository with the given URL is missing from helm. If the repo is found, the name of the repo will be returned

func (*HelmCLI) Lint 

func (h *HelmCLI) Lint(valuesFiles []string) (string, error)

Lint lints the helm chart from the current working directory and returns the warnings in the output

func (*HelmCLI) ListReleases 

func (h *HelmCLI) ListReleases(ns string) (map[string]ReleaseSummary, []string, error)

ListReleases lists the releases in ns

func (*HelmCLI) ListRepos 

func (h *HelmCLI) ListRepos() (map[string]string, error)

ListRepos list the installed helm repos together with their URL

func (*HelmCLI) PackageChart 

func (h *HelmCLI) PackageChart() error

PackageChart packages the chart from the current working directory

func (*HelmCLI) RemoveRepo 

func (h *HelmCLI) RemoveRepo(repo string) error

RemoveRepo removes the given repo from helm

func (*HelmCLI) RemoveRequirementsLock 

func (h *HelmCLI) RemoveRequirementsLock() error

RemoveRequirementsLock removes the requirements.lock file from the current working directory

func (*HelmCLI) SearchCharts 

func (h *HelmCLI) SearchCharts(filter string, allVersions bool) ([]ChartSummary, error)

SearchCharts searches for all the charts matching the given filter

func (*HelmCLI) SetCWD 

func (h *HelmCLI) SetCWD(dir string)

SetCWD configures the common working directory of helm CLI

func (*HelmCLI) SetHelmBinary 

func (h *HelmCLI) SetHelmBinary(binary string)

SetHelmBinary configure a new helm CLI

func (*HelmCLI) StatusRelease 

func (h *HelmCLI) StatusRelease(ns, releaseName string) error

StatusRelease returns the output of the helm status command for a given release

func (*HelmCLI) StatusReleaseWithOutput 

func (h *HelmCLI) StatusReleaseWithOutput(ns, releaseName, outputFormat string) (string, error)

StatusReleaseWithOutput returns the output of the helm status command for a given release

func (*HelmCLI) Template 

func (h *HelmCLI) Template(chart, releaseName, ns, outDir string, upgrade bool,
	values, valueStrings, valueFiles []string) error

Template generates the YAML from the chart template to the given directory

func (*HelmCLI) UpdateRepo 

func (h *HelmCLI) UpdateRepo() error

UpdateRepo updates the helm repositories

func (*HelmCLI) UpgradeChart 

func (h *HelmCLI) UpgradeChart(chart, releaseName, ns, version string,
	install bool, timeout int, force, wait bool, values, valueStrings,
	valueFiles []string, repo, username, password string) error

UpgradeChart upgrades a helm chart according with given helm flags

func (*HelmCLI) Version 

func (h *HelmCLI) Version(tls bool) (string, error)

Version executes the helm version command and returns its output

func (*HelmCLI) VersionWithArgs 

func (h *HelmCLI) VersionWithArgs(tls bool, extraArgs ...string) (string, error)

VersionWithArgs executes the helm version command and returns its output

type HelmRepoCredential 

type HelmRepoCredential struct {
	Username string `json:"username"`
	Password string `json:"password"`
}

HelmRepoCredential is a username and password pair that can ben used to authenticated against a Helm repo

type HelmRepoCredentials 

type HelmRepoCredentials map[string]HelmRepoCredential

HelmRepoCredentials is a map of repositories to HelmRepoCredential that stores all the helm repo credentials for the cluster

type Helmer 

type Helmer interface {
	SetCWD(dir string)
	HelmBinary() string
	AddRepo(repo, URL, username, password string) error
	RemoveRepo(repo string) error
	ListRepos() (map[string]string, error)
	UpdateRepo() error
	IsRepoMissing(URL string) (bool, string, error)
	RemoveRequirementsLock() error
	BuildDependency() error
	InstallChart(chart string, releaseName string, ns string, version string, timeout int,
		values []string, valueStrings []string, valueFiles []string, repo string, username string, password string) error
	UpgradeChart(chart string, releaseName string, ns string, version string, install bool, timeout int, force bool, wait bool,
		values []string, valueStrings []string, valueFiles []string, repo string, username string, password string) error
	FetchChart(chart string, version string, untar bool, untardir string, repo string, username string,
		password string) error
	DeleteRelease(ns string, releaseName string, purge bool) error
	ListReleases(ns string) (map[string]ReleaseSummary, []string, error)
	FindChart() (string, error)
	PackageChart() error
	StatusRelease(ns string, releaseName string) error
	StatusReleaseWithOutput(ns string, releaseName string, format string) (string, error)
	Lint(valuesFiles []string) (string, error)
	Version(tls bool) (string, error)
	SearchCharts(filter string, allVersions bool) ([]ChartSummary, error)
	Env() map[string]string
	DecryptSecrets(location string) error
	Template(chartDir string, releaseName string, ns string, outputDir string, upgrade bool, values []string, valueStrings []string, valueFiles []string) error
}

Helmer defines common helm actions used within Jenkins X

func NewFakeHelmer 

func NewFakeHelmer() Helmer

NewFakeHelmer creates a

type InstallChartOptions 

type InstallChartOptions struct {
	Dir            string
	ReleaseName    string
	Chart          string
	Version        string
	Ns             string
	HelmUpdate     bool
	SetValues      []string
	SetStrings     []string
	ValueFiles     []string
	Repository     string
	Username       string
	Password       string
	VersionsDir    string
	VersionsGitURL string
	VersionsGitRef string
	InstallOnly    bool
	NoForce        bool
	Wait           bool
	UpgradeOnly    bool
}

type ReleaseSummary 

type ReleaseSummary struct {
	ReleaseName   string
	Revision      string
	Updated       string
	Status        string
	ChartFullName string
	Chart         string
	ChartVersion  string
	AppVersion    string
	Namespace     string
}

ReleaseSummary is the information about a release in Helm

type Requirements 

type Requirements struct {
	Dependencies []*Dependency `json:"dependencies"`
}

Requirements is a list of requirements for a chart.

Requirements are charts upon which this chart depends. This expresses developer intent.

func LoadRequirements 

func LoadRequirements(data []byte) (*Requirements, error)

LoadRequirements loads the requirements from some data

func LoadRequirementsFile 

func LoadRequirementsFile(fileName string) (*Requirements, error)

LoadRequirementsFile loads the requirements file or creates empty requirements if the file does not exist

func (*Requirements) RemoveApplication 

func (r *Requirements) RemoveApplication(app string) bool

RemoveApplication removes the given app name. Returns true if a dependency was removed

func (*Requirements) SetAppVersion 

func (r *Requirements) SetAppVersion(app string, version string, repository string, alias string)

SetAppVersion sets the version of the app to use

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