/
fake_reader.go
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/
fake_reader.go
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/*
Copyright 2019 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package test
import (
"context"
"github.com/pkg/errors"
"sigs.k8s.io/yaml"
clusterctlv1 "sigs.k8s.io/cluster-api/cmd/clusterctl/api/v1alpha3"
)
// FakeReader provider a reader implementation backed by a map.
type FakeReader struct {
initialized bool
variables map[string]string
providers []configProvider
certManager configCertManager
imageMetas map[string]imageMeta
}
// configProvider is a mirror of config.Provider, re-implemented here in order to
// avoid circular dependencies between pkg/client/config and pkg/internal/test.
type configProvider struct {
Name string `json:"name,omitempty"`
URL string `json:"url,omitempty"`
Type clusterctlv1.ProviderType `json:"type,omitempty"`
}
// configCertManager is a mirror of config.CertManager, re-implemented here in order to
// avoid circular dependencies between pkg/client/config and pkg/internal/test.
type configCertManager struct {
URL string `json:"url,omitempty"`
Version string `json:"version,omitempty"`
Timeout string `json:"timeout,omitempty"`
}
// imageMeta is a mirror of config.imageMeta, re-implemented here in order to
// avoid circular dependencies between pkg/client/config and pkg/internal/test.
type imageMeta struct {
Repository string `json:"repository,omitempty"`
Tag string `json:"tag,omitempty"`
}
func (f *FakeReader) Init(_ context.Context, _ string) error {
f.initialized = true
return nil
}
func (f *FakeReader) Get(key string) (string, error) {
if val, ok := f.variables[key]; ok {
return val, nil
}
return "", errors.Errorf("value for variable %q is not set", key)
}
func (f *FakeReader) Set(key, value string) {
f.variables[key] = value
}
func (f *FakeReader) UnmarshalKey(key string, rawval interface{}) error {
data, err := f.Get(key)
if err != nil {
return nil //nolint:nilerr // We expect to not error if the key is not present
}
return yaml.Unmarshal([]byte(data), rawval)
}
func NewFakeReader() *FakeReader {
return &FakeReader{
variables: map[string]string{},
imageMetas: map[string]imageMeta{},
}
}
func (f *FakeReader) WithVar(key, value string) *FakeReader {
f.variables[key] = value
return f
}
func (f *FakeReader) WithProvider(name string, ttype clusterctlv1.ProviderType, url string) *FakeReader {
f.providers = append(f.providers, configProvider{
Name: name,
URL: url,
Type: ttype,
})
yaml, _ := yaml.Marshal(f.providers)
f.variables["providers"] = string(yaml)
return f
}
func (f *FakeReader) WithCertManager(url, version, timeout string) *FakeReader {
f.certManager = configCertManager{
URL: url,
Version: version,
Timeout: timeout,
}
yaml, _ := yaml.Marshal(f.certManager)
f.variables["cert-manager"] = string(yaml)
return f
}
func (f *FakeReader) WithImageMeta(component, repository, tag string) *FakeReader {
f.imageMetas[component] = imageMeta{
Repository: repository,
Tag: tag,
}
yaml, _ := yaml.Marshal(f.imageMetas)
f.variables["images"] = string(yaml)
return f
}