Esempio n. 1
0
// New returns an environment initialized with the defaults.
func New() *Environment {
	e := engine.New()
	var ey EngineYard = map[string]Engine{
		// Currently, the only template engine we support is the GoTpl one. But
		// we can easily add some here.
		GoTplEngine: e,
	}

	return &Environment{
		EngineYard: ey,
		Releases:   storage.Init(driver.NewMemory()),
		KubeClient: kube.New(nil),
	}
}
Esempio n. 2
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// New returns an environment initialized with the defaults.
func New() *Environment {
	e := engine.New()
	var ey EngineYard = map[string]Engine{
		// Currently, the only template engine we support is the GoTpl one. But
		// we can easily add some here.
		GoTplEngine: e,
	}
	return &Environment{
		Namespace:  DefaultNamespace,
		EngineYard: ey,
		Releases:   storage.NewMemory(),
		KubeClient: kube.New(nil), //&PrintingKubeClient{Out: os.Stdout},
	}
}
Esempio n. 3
0
// Templates lints the templates in the Linter.
func Templates(linter *support.Linter) {
	templatesPath := filepath.Join(linter.ChartDir, "templates")

	templatesDirExist := linter.RunLinterRule(support.WarningSev, validateTemplatesDir(templatesPath))

	// Templates directory is optional for now
	if !templatesDirExist {
		return
	}

	// Load chart and parse templates, based on tiller/release_server
	chart, err := chartutil.Load(linter.ChartDir)

	chartLoaded := linter.RunLinterRule(support.ErrorSev, validateNoError(err))

	if !chartLoaded {
		return
	}

	options := chartutil.ReleaseOptions{Name: "testRelease", Time: timeconv.Now(), Namespace: "testNamespace"}
	valuesToRender, err := chartutil.ToRenderValues(chart, chart.Values, options)
	if err != nil {
		// FIXME: This seems to generate a duplicate, but I can't find where the first
		// error is coming from.
		//linter.RunLinterRule(support.ErrorSev, err)
		return
	}
	renderedContentMap, err := engine.New().Render(chart, valuesToRender)

	renderOk := linter.RunLinterRule(support.ErrorSev, validateNoError(err))

	if !renderOk {
		return
	}

	/* Iterate over all the templates to check:
	   - It is a .yaml file
		 - All the values in the template file is defined
		 - {{}} include | quote
		 - Generated content is a valid Yaml file
		 - Metadata.Namespace is not set
	*/
	for _, template := range chart.Templates {
		fileName, preExecutedTemplate := template.Name, template.Data

		linter.RunLinterRule(support.ErrorSev, validateAllowedExtension(fileName))

		// We only apply the following lint rules to yaml files
		if filepath.Ext(fileName) != ".yaml" {
			continue
		}

		// Check that all the templates have a matching value
		linter.RunLinterRule(support.WarningSev, validateNonMissingValues(fileName, templatesPath, valuesToRender, preExecutedTemplate))

		linter.RunLinterRule(support.WarningSev, validateQuotes(fileName, string(preExecutedTemplate)))

		renderedContent := renderedContentMap[fileName]
		var yamlStruct K8sYamlStruct
		// Even though K8sYamlStruct only defines Metadata namespace, an error in any other
		// key will be raised as well
		err := yaml.Unmarshal([]byte(renderedContent), &yamlStruct)

		validYaml := linter.RunLinterRule(support.ErrorSev, validateYamlContent(fileName, err))

		if !validYaml {
			continue
		}

		linter.RunLinterRule(support.ErrorSev, validateNoNamespace(fileName, yamlStruct))
	}
}