33 lines
843 B
Go
33 lines
843 B
Go
package initialize
|
|
|
|
import (
|
|
"fmt"
|
|
"log"
|
|
"strings"
|
|
|
|
"github.com/coreos/coreos-cloudinit/config"
|
|
"github.com/coreos/coreos-cloudinit/system"
|
|
)
|
|
|
|
func ParseUserData(contents string) (interface{}, error) {
|
|
if len(contents) == 0 {
|
|
return nil, nil
|
|
}
|
|
header := strings.SplitN(contents, "\n", 2)[0]
|
|
|
|
// Explicitly trim the header so we can handle user-data from
|
|
// non-unix operating systems. The rest of the file is parsed
|
|
// by yaml, which correctly handles CRLF.
|
|
header = strings.TrimSpace(header)
|
|
|
|
if strings.HasPrefix(header, "#!") {
|
|
log.Printf("Parsing user-data as script")
|
|
return system.Script(contents), nil
|
|
} else if header == "#cloud-config" {
|
|
log.Printf("Parsing user-data as cloud-config")
|
|
return config.NewCloudConfig(contents)
|
|
} else {
|
|
return nil, fmt.Errorf("Unrecognized user-data header: %s", header)
|
|
}
|
|
}
|