Add local.settings.php to every instance

This commit adds a new file 'local.settings.php' to each distillery
instance. This file can be used to automatically edit global distillery
settings.

internal/wisski/ingredient/barrel/stack.go

@@ -4,12 +4,19 @@ import (
 	"embed"
 	"path/filepath"
 
+	_ "embed"
+
 	"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
 )
 
 //go:embed all:barrel
 var barrelResources embed.FS
 
+const localSettingsName = "settings.local.php"
+
+//go:embed local.settings.php
+var localSettingsTemplate string
+
 // Barrel returns a stack representing the running WissKI Instance
 func (barrel *Barrel) Stack() component.StackWithResources {
 	return component.StackWithResources{
@@ -20,6 +27,10 @@ func (barrel *Barrel) Stack() component.StackWithResources {
 		Resources:   barrelResources,
 		ContextPath: filepath.Join("barrel"),
 
+		CreateFiles: map[string]string{
+			localSettingsName: localSettingsTemplate,
+		},
+
 		EnvContext: map[string]string{
 			"DOCKER_NETWORK_NAME": barrel.Malt.Config.Docker.Network(),
 
@@ -31,6 +42,9 @@ func (barrel *Barrel) Stack() component.StackWithResources {
 			"DATA_PATH":   filepath.Join(barrel.FilesystemBase, "data"),
 			"RUNTIME_DIR": barrel.Malt.Config.Paths.RuntimeDir(),
 
+			"LOCAL_SETTINGS_PATH":  filepath.Join(barrel.FilesystemBase, localSettingsName),
+			"LOCAL_SETTINGS_MOUNT": LocalSettingsPath,
+
 			"BARREL_BASE_IMAGE":       barrel.GetDockerBaseImage(),
 			"IIP_SERVER_ENABLED":      barrel.GetIIPServerEnabled(),
 			"OPCACHE_MODE":            barrel.OpCacheMode(),