mirror of https://github.com/k3s-io/k3s
81 lines
2.4 KiB
Go
81 lines
2.4 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors.
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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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http://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 versioned
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import (
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"fmt"
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"k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/kubectl/pkg/generate"
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)
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// NamespaceGeneratorV1 supports stable generation of a namespace
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type NamespaceGeneratorV1 struct {
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// Name of namespace
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Name string
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}
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// Ensure it supports the generator pattern that uses parameter injection
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var _ generate.Generator = &NamespaceGeneratorV1{}
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// Ensure it supports the generator pattern that uses parameters specified during construction
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var _ generate.StructuredGenerator = &NamespaceGeneratorV1{}
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// Generate returns a namespace using the specified parameters
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func (g NamespaceGeneratorV1) Generate(genericParams map[string]interface{}) (runtime.Object, error) {
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err := generate.ValidateParams(g.ParamNames(), genericParams)
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if err != nil {
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return nil, err
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}
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params := map[string]string{}
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for key, value := range genericParams {
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strVal, isString := value.(string)
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if !isString {
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return nil, fmt.Errorf("expected string, saw %v for '%s'", value, key)
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}
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params[key] = strVal
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}
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delegate := &NamespaceGeneratorV1{Name: params["name"]}
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return delegate.StructuredGenerate()
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}
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// ParamNames returns the set of supported input parameters when using the parameter injection generator pattern
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func (g NamespaceGeneratorV1) ParamNames() []generate.GeneratorParam {
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return []generate.GeneratorParam{
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{Name: "name", Required: true},
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}
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}
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// StructuredGenerate outputs a namespace object using the configured fields
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func (g *NamespaceGeneratorV1) StructuredGenerate() (runtime.Object, error) {
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if err := g.validate(); err != nil {
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return nil, err
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}
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namespace := &v1.Namespace{}
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namespace.Name = g.Name
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return namespace, nil
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}
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// validate validates required fields are set to support structured generation
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func (g *NamespaceGeneratorV1) validate() error {
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if len(g.Name) == 0 {
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return fmt.Errorf("name must be specified")
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}
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return nil
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}
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