Add option for json validation

pkg/schema/config.go

@@ -78,6 +78,9 @@ type ProgramConfig struct {
 	// do not write to the job-archive.
 	DisableArchive bool `json:"disable-archive"`
 
+	// Validate json input against schema
+	Validate bool `json:"validate"`
+
 	// For LDAP Authentication and user synchronisation.
 	LdapConfig *LdapConfig    `json:"ldap"`
 	JwtConfig  *JWTAuthConfig `json:"jwts"`

pkg/schema/validate.go

@@ -5,10 +5,12 @@
 package schema
 
 import (
+	"encoding/json"
 	"fmt"
 	"io"
 
-	"github.com/santhosh-tekuri/jsonschema"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
+	"github.com/santhosh-tekuri/jsonschema/v5"
 )
 
 type Kind int
@@ -19,7 +21,7 @@ const (
 	ClusterCfg
 )
 
-func Validate(k Kind, v io.Reader) (err error) {
+func Validate(k Kind, r io.Reader) (err error) {
 	var s *jsonschema.Schema
 
 	switch k {
@@ -37,9 +39,15 @@ func Validate(k Kind, v io.Reader) (err error) {
 		return err
 	}
 
-	if err = s.Validate(v); err != nil {
+	var v interface{}
+	if err := json.NewDecoder(r).Decode(&v); err != nil {
+		log.Error("schema.Validate() - Failed to decode %v", err)
 		return err
 	}
 
+	if err = s.Validate(v); err != nil {
+		return fmt.Errorf("%#v", err)
+	}
+
 	return nil
 }