more metrics infrastructure (#128)

controller/metrics/config.go

@@ -1,5 +1,18 @@
 package metrics
 
+import (
+	"github.com/michaelquigley/cf"
+	"github.com/pkg/errors"
+)
+
 type Config struct {
 	Source interface{}
 }
+
+func LoadConfig(path string) (*Config, error) {
+	cfg := &Config{}
+	if err := cf.BindYaml(cfg, path, GetCfOptions()); err != nil {
+		return nil, errors.Wrapf(err, "error loading config from '%v'", path)
+	}
+	return cfg, nil
+}