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https://github.com/helmfile/helmfile.git
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Yusuke Kuoka
f614e8b1bf
Related to #494 This feature is mostly a built-in alternative to the `incubator/raw` chart without external dependency and has access to helmfile's own template functions and template data. The expected use-case of this feature is to add arbitrary K8s resources to your deployment. Unlike the original issue raised in #494 this doesn't enable you to add arbitary resources to a release. That's another story. But this would be a good foundation for that, too.
64 lines
1.1 KiB
Go
64 lines
1.1 KiB
Go
package tmpl
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import (
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"bytes"
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"github.com/Masterminds/sprig/v3"
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"text/template"
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)
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func (c *Context) CreateFuncMap() template.FuncMap {
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aliased := template.FuncMap{}
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aliases := map[string]string{
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"get": "sprigGet",
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}
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funcMap := sprig.TxtFuncMap()
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for orig, alias := range aliases {
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aliased[alias] = funcMap[orig]
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}
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for name, f := range c.createFuncMap() {
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funcMap[name] = f
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}
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for name, f := range aliased {
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funcMap[name] = f
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}
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return funcMap
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}
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func (c *Context) newTemplate() *template.Template {
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funcMap := c.CreateFuncMap()
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tmpl := template.New("stringTemplate").Funcs(funcMap)
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if c.preRender {
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tmpl = tmpl.Option("missingkey=zero")
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} else {
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tmpl = tmpl.Option("missingkey=error")
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}
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return tmpl
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}
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func (c *Context) RenderTemplateToBuffer(s string, data ...interface{}) (*bytes.Buffer, error) {
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var t, parseErr = c.newTemplate().Parse(s)
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if parseErr != nil {
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return nil, parseErr
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}
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var tplString bytes.Buffer
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var d interface{}
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if len(data) > 0 {
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d = data[0]
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}
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var execErr = t.Execute(&tplString, d)
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if execErr != nil {
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return &tplString, execErr
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}
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return &tplString, nil
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}
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