airshipctl/krm-functions/cloud-init/main.go
Alexey Odinokov 37c2854cce Switching airshipctl and krm-functions to kustomize 4.2.0
Reworked build process of dependent krm functions
to use the latest airshipctl

Change-Id: If4c7f992123b86442980f381ae69fb003f4851e3
2021-07-22 17:06:32 +00:00

124 lines
3.3 KiB
Go

/*
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
https://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 main
import (
"errors"
"fmt"
"os"
"path/filepath"
"sigs.k8s.io/kustomize/api/provider"
"sigs.k8s.io/kustomize/api/resmap"
"sigs.k8s.io/kustomize/kyaml/fn/framework"
"sigs.k8s.io/kustomize/kyaml/fn/framework/command"
"sigs.k8s.io/kustomize/kyaml/fn/runtime/runtimeutil"
"sigs.k8s.io/kustomize/kyaml/yaml"
"opendev.org/airship/airshipctl/pkg/api/v1alpha1"
"opendev.org/airship/airshipctl/pkg/bootstrap/cloudinit"
"opendev.org/airship/airshipctl/pkg/document"
"opendev.org/airship/airshipctl/pkg/util"
)
const (
builderConfigFileName = "builder-conf.yaml"
userDataFileName = "user-data"
networkConfigFileName = "network-data"
)
func bundleFromRNodes(rnodes []*yaml.RNode) (document.Bundle, error) {
p := provider.NewDefaultDepProvider()
resmapFactory := resmap.NewFactory(p.GetResourceFactory())
resmap, err := resmapFactory.NewResMapFromRNodeSlice(rnodes)
if err != nil {
return &document.BundleFactory{}, err
}
return &document.BundleFactory{
ResMap: resmap,
}, nil
}
func docFromRNode(rnode *yaml.RNode) (document.Document, error) {
rnodes := []*yaml.RNode{rnode}
bundle, err := bundleFromRNodes(rnodes)
if err != nil {
return nil, err
}
collection, err := bundle.GetAllDocuments()
if err != nil {
return nil, err
}
if len(collection) == 0 {
return nil, errors.New("Error while converting RNode to Document: empty document bundle")
}
return collection[0], nil
}
func main() {
fn := func(rl *framework.ResourceList) error {
functionConfigDocument, err := docFromRNode(rl.FunctionConfig)
if err != nil {
return err
}
functionConfigYaml, err := functionConfigDocument.AsYAML()
if err != nil {
return err
}
isoConfiguration := &v1alpha1.IsoConfiguration{}
err = functionConfigDocument.ToAPIObject(isoConfiguration, v1alpha1.Scheme)
if err != nil {
return err
}
docBundle, err := bundleFromRNodes(rl.Items)
if err != nil {
return err
}
userData, netConf, err := cloudinit.GetCloudData(
docBundle,
isoConfiguration.Isogen.UserDataSelector,
isoConfiguration.Isogen.UserDataKey,
isoConfiguration.Isogen.NetworkConfigSelector,
isoConfiguration.Isogen.NetworkConfigKey,
)
if err != nil {
return err
}
functionSpec := runtimeutil.GetFunctionSpec(rl.FunctionConfig)
configPath := functionSpec.Container.StorageMounts[0].DstPath
fls := make(map[string][]byte)
fls[filepath.Join(configPath, userDataFileName)] = userData
fls[filepath.Join(configPath, networkConfigFileName)] = netConf
fls[filepath.Join(configPath, builderConfigFileName)] = functionConfigYaml
if err = util.WriteFiles(fls, 0600); err != nil {
return err
}
rl.Items = []*yaml.RNode{}
return nil
}
cmd := command.Build(framework.ResourceListProcessorFunc(fn), command.StandaloneEnabled, false)
if err := cmd.Execute(); err != nil {
fmt.Println(err)
os.Exit(1)
}
}