Gh 10166 (#13021)

* model/config: add required server config field to manifest

* plugin/helpers: add check required server configuration method

* plugin/helpers: code polish

* model/manifest: add documentation

* Update plugin/helpers_config.go

Co-Authored-By: Ben Schumacher <ben.schumacher@mattermost.com>

* plugin/helpers_config: remove stagnant line

* plugin/helpers: update to v5

* plugin/helpers_config: add license

Co-authored-by: Ben Schumacher <ben.schumacher@mattermost.com>
Co-authored-by: Jesse Hallam <jesse.hallam@gmail.com>
Co-authored-by: mattermod <mattermod@users.noreply.github.com>

model/manifest.go

@@ -168,6 +168,11 @@ type Manifest struct {
 
 	// Plugins can store any kind of data in Props to allow other plugins to use it.
 	Props map[string]interface{} `json:"props,omitempty" yaml:"props,omitempty"`
+
+	// RequiredConfig defines any required server configuration fields for the plugin to function properly.
+	//
+	// Use the plugin helpers CheckRequiredServerConfiguration method to enforce this.
+	RequiredConfig *Config `json:"required_configuration,omitempty" yaml:"required_configuration,omitempty"`
 }
 
 type ManifestServer struct {