refactor(report): azure and aws writer (#1190)

config/azureconf.go

@@ -1,5 +1,11 @@
 package config
 
+import (
+	"os"
+
+	"golang.org/x/xerrors"
+)
+
 // AzureConf is azure config
 type AzureConf struct {
 	// Azure account name to use. AZURE_STORAGE_ACCOUNT environment variable is used if not specified
@@ -16,9 +22,18 @@ type AzureConf struct {
 
 // Validate configuration
 func (c *AzureConf) Validate() (errs []error) {
-	// TODO
 	if !c.Enabled {
 		return
 	}
+	if c.AccountName == "" {
+		c.AccountName = os.Getenv("AZURE_STORAGE_ACCOUNT")
+	}
+
+	if c.AccountKey == "" {
+		c.AccountKey = os.Getenv("AZURE_STORAGE_ACCESS_KEY")
+	}
+	if c.ContainerName == "" {
+		errs = append(errs, xerrors.Errorf("Azure storage container name is required"))
+	}
 	return
 }