132 lines
3.2 KiB
Go
132 lines
3.2 KiB
Go
package cloudinit
|
|
|
|
import (
|
|
b64 "encoding/base64"
|
|
|
|
"opendev.org/airship/airshipctl/pkg/document"
|
|
)
|
|
|
|
const (
|
|
networkDataKey = "networkData"
|
|
userDataKey = "userData"
|
|
)
|
|
|
|
// GetCloudData reads YAML document input and generates cloud-init data for
|
|
// ephemeral node.
|
|
func GetCloudData(docBundle document.Bundle) (userData []byte, netConf []byte, err error) {
|
|
userData, err = getUserData(docBundle)
|
|
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
|
|
netConf, err = getNetworkData(docBundle)
|
|
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
|
|
return userData, netConf, err
|
|
}
|
|
|
|
func getUserData(docBundle document.Bundle) ([]byte, error) {
|
|
// find the user-data document
|
|
selector := document.NewEphemeralCloudDataSelector()
|
|
docs, err := docBundle.Select(selector)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
var userDataDoc document.Document = &document.Factory{}
|
|
switch numDocsFound := len(docs); {
|
|
case numDocsFound == 0:
|
|
return nil, document.ErrDocNotFound{Selector: selector}
|
|
case numDocsFound > 1:
|
|
return nil, document.ErrMultipleDocsFound{Selector: selector}
|
|
case numDocsFound == 1:
|
|
userDataDoc = docs[0]
|
|
}
|
|
|
|
// finally, try and retrieve the data we want from the document
|
|
userData, err := decodeData(userDataDoc, userDataKey)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return userData, nil
|
|
}
|
|
|
|
func getNetworkData(docBundle document.Bundle) ([]byte, error) {
|
|
// find the baremetal host indicated as the ephemeral node
|
|
selector := document.NewEphemeralBMHSelector()
|
|
docs, err := docBundle.Select(selector)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
var bmhDoc document.Document = &document.Factory{}
|
|
switch numDocsFound := len(docs); {
|
|
case numDocsFound == 0:
|
|
return nil, document.ErrDocNotFound{Selector: selector}
|
|
case numDocsFound > 1:
|
|
return nil, document.ErrMultipleDocsFound{Selector: selector}
|
|
case numDocsFound == 1:
|
|
bmhDoc = docs[0]
|
|
}
|
|
|
|
// try and find these documents in our bundle
|
|
selector, err = document.NewEphemeralNetworkDataSelector(bmhDoc)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
docs, err = docBundle.Select(selector)
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
var networkDataDoc document.Document = &document.Factory{}
|
|
switch numDocsFound := len(docs); {
|
|
case numDocsFound == 0:
|
|
return nil, document.ErrDocNotFound{Selector: selector}
|
|
case numDocsFound > 1:
|
|
return nil, document.ErrMultipleDocsFound{Selector: selector}
|
|
case numDocsFound == 1:
|
|
networkDataDoc = docs[0]
|
|
}
|
|
|
|
// finally, try and retrieve the data we want from the document
|
|
netData, err := decodeData(networkDataDoc, networkDataKey)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return netData, nil
|
|
}
|
|
|
|
func decodeData(cfg document.Document, key string) ([]byte, error) {
|
|
var needsBase64Decode = false
|
|
|
|
// TODO(alanmeadows): distinguish between missing net-data key
|
|
// and missing data/stringData keys in the Secret
|
|
data, err := cfg.GetStringMap("data")
|
|
if err == nil {
|
|
needsBase64Decode = true
|
|
} else {
|
|
// we'll catch any error below
|
|
data, err = cfg.GetStringMap("stringData")
|
|
if err != nil {
|
|
return nil, ErrDataNotSupplied{DocName: cfg.GetName(), Key: "data or stringData"}
|
|
}
|
|
}
|
|
|
|
res, ok := data[key]
|
|
if !ok {
|
|
return nil, ErrDataNotSupplied{DocName: cfg.GetName(), Key: key}
|
|
}
|
|
|
|
if needsBase64Decode {
|
|
return b64.StdEncoding.DecodeString(res)
|
|
}
|
|
return []byte(res), nil
|
|
}
|