0324993d60
This PS has a function which constructs a collection of Metal3 BareMetalHost resources, along with associated configuration Secrets. It solves for a couple of things: 1. pulling the nitty gritty details for generating BMH into one reusable place, 2. allowing the site-specific details to be filled in via catalogues of values This function leverages a couple of different plugins in sequence: The airshipctl Replacement plugin, which pulls the site-specific data from the catalogue documents into a Templater plugin configuration; and then the airshipctl Templater plugin, which generates a variable number of BMHs in a data-driven fashion. More details can be found in the README.md in this patchset. Closes: #245 Change-Id: I3ddbd36dc53ea6afbd633098c985f4b28bcbb793
72 lines
1.8 KiB
Go
72 lines
1.8 KiB
Go
/*
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package v1alpha1
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import (
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"io"
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"text/template"
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"github.com/Masterminds/sprig"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"sigs.k8s.io/yaml"
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plugtypes "opendev.org/airship/airshipctl/pkg/document/plugin/types"
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"opendev.org/airship/airshipctl/pkg/environment"
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)
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// GetGVK returns group, version, kind object used to register version
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// of the plugin
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func GetGVK() schema.GroupVersionKind {
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return schema.GroupVersionKind{
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Group: "airshipit.org",
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Version: "v1alpha1",
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Kind: "Templater",
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}
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}
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// New creates new instance of the plugin
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func New(_ *environment.AirshipCTLSettings, cfg []byte) (plugtypes.Plugin, error) {
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t := &Templater{}
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if err := yaml.Unmarshal(cfg, t); err != nil {
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return nil, err
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}
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return t, nil
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}
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// Run templater plugin
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func (t *Templater) Run(_ io.Reader, out io.Writer) error {
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funcMap := sprig.TxtFuncMap()
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funcMap["toYaml"] = toYaml
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tmpl, err := template.New("tmpl").Funcs(funcMap).Parse(t.Template)
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if err != nil {
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return err
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}
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return tmpl.Execute(out, t.Values)
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}
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// Render input yaml as output yaml
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// This function is from the Helm project:
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// https://github.com/helm/helm
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// Copyright The Helm Authors
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func toYaml(v interface{}) string {
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data, err := yaml.Marshal(v)
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if err != nil {
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// Swallow errors inside of a template.
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return ""
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}
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return string(data)
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}
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