Initial commit

config/config.go

@@ -0,0 +1,102 @@
+package config
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+
+	yaml "gopkg.in/yaml.v2"
+)
+
+// Config represent this system's configuration
+type Config struct {
+	Vars []VarDefault
+
+	Layers  []string
+	Modules []string
+
+	RootUser struct {
+		PasswordHash   string   `yaml:"password_hash"`
+		AuthorizedKeys []string `yaml:"authorized_keys"`
+	} `yaml:"root_user"`
+
+	Storage StorageConfig
+
+	Groups []GroupDef
+	Users  []UserDef
+
+	Files []FileDef
+
+	Networks []NetworkDef
+}
+
+type VarDefault struct {
+	Name    string
+	Default string
+}
+
+type StorageConfig struct {
+	UdevMatch     string   `yaml:"udev_match"`
+	RemoveVolumes []string `yaml:"remove_volumes"`
+	Volumes       []VolumeDef
+}
+
+type VolumeDef struct {
+	Name    string
+	Size    string
+	Extents string
+	FS      string
+	Mount   struct {
+		Path    string
+		Options string
+	}
+}
+
+type GroupDef struct {
+	Name string
+	Gid  int
+}
+
+type UserDef struct {
+	Name string
+	Gid  int
+	Uid  int
+}
+
+type FileDef struct {
+	Path    string
+	Mode    os.FileMode
+	Content string
+	Secret  string
+}
+
+type NetworkDef struct {
+	Match struct {
+		All  bool
+		Name string
+		Ping *struct {
+			Source  string
+			Target  string
+			Count   int
+			Timeout int
+		}
+	}
+	Optional bool
+	Script   string
+}
+
+func Load(file string) (config *Config, err error) {
+	config = &Config{}
+
+	configData, err := ioutil.ReadFile(file)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read %s: %v", file, err)
+	}
+
+	err = yaml.Unmarshal(configData, config)
+	if err != nil {
+		return nil, fmt.Errorf("failed to parse %s: %v", file, err)
+	}
+
+	return
+}