feat(gcp): add GCP plugin (#5229)

Add GCP as a supported plugin for dynamic host catalogs

internal/cmd/base/base.go

@@ -38,6 +38,7 @@ const (
 	EnabledPluginAws
 	EnabledPluginHostAzure
 	EnabledPluginMinio
+	EnabledPluginGCP
 )
 
 // MinioEnabled controls if the Minio storage plugin should be initiated or not
@@ -53,6 +54,8 @@ func (e EnabledPlugin) String() string {
 		return "Azure"
 	case EnabledPluginMinio:
 		return "MinIO"
+	case EnabledPluginGCP:
+		return "GCP"
 	default:
 		return ""
 	}

internal/cmd/commands/dev/dev.go

@@ -821,7 +821,7 @@ func (c *Command) Run(args []string) int {
 	}
 
 	{
-		c.EnabledPlugins = append(c.EnabledPlugins, base.EnabledPluginAws, base.EnabledPluginHostAzure)
+		c.EnabledPlugins = append(c.EnabledPlugins, base.EnabledPluginAws, base.EnabledPluginHostAzure, base.EnabledPluginGCP)
 		if base.MinioEnabled {
 			c.EnabledPlugins = append(c.EnabledPlugins, base.EnabledPluginMinio)
 		}

internal/cmd/commands/server/server.go

@@ -492,7 +492,7 @@ func (c *Command) Run(args []string) int {
 		}
 	}
 
-	c.EnabledPlugins = append(c.EnabledPlugins, base.EnabledPluginAws, base.EnabledPluginHostAzure)
+	c.EnabledPlugins = append(c.EnabledPlugins, base.EnabledPluginAws, base.EnabledPluginHostAzure, base.EnabledPluginGCP)
 	if base.MinioEnabled {
 		c.EnabledPlugins = append(c.EnabledPlugins, base.EnabledPluginMinio)
 	}

internal/daemon/controller/controller.go

@@ -320,6 +320,8 @@ func New(ctx context.Context, conf *Config) (*Controller, error) {
 			if _, err := conf.RegisterPlugin(ctx, pluginType, client, []plugin.PluginType{plugin.PluginTypeHost}, plugin.WithDescription(fmt.Sprintf("Built-in %s host plugin", enabledPlugin.String()))); err != nil {
 				return nil, fmt.Errorf("error registering %s host plugin: %w", pluginType, err)
 			}
+		case enabledPlugin == base.EnabledPluginGCP && !c.conf.SkipPlugins:
+			fallthrough
 		case enabledPlugin == base.EnabledPluginAws && !c.conf.SkipPlugins:
 			pluginType := strings.ToLower(enabledPlugin.String())
 			client, cleanup, err := external_plugins.CreateHostPlugin(

internal/daemon/controller/controller_test.go

@@ -257,6 +257,7 @@ func TestController_NewPluginsConfig(t *testing.T) {
 	conf.EnabledPlugins = []base.EnabledPlugin{
 		base.EnabledPluginAws,
 		base.EnabledPluginHostAzure,
+		base.EnabledPluginGCP,
 	}
 
 	_, err = New(testCtx, conf)
@@ -265,14 +266,15 @@ func TestController_NewPluginsConfig(t *testing.T) {
 	// Check that both plugins were written to the temp dir
 	files, err := os.ReadDir(tmpDir)
 	require.NoError(err)
-	require.Len(files, 2)
+	require.Len(files, 3)
 	for _, file := range files {
 		name := filepath.Base(file.Name())
 		// Remove random chars and hyphen
 		name = name[0 : len(name)-6]
 		switch name {
 		case boundary_plugin_assets.PluginPrefix + "aws",
-			boundary_plugin_assets.PluginPrefix + "azure":
+			boundary_plugin_assets.PluginPrefix + "azure",
+			boundary_plugin_assets.PluginPrefix + "gcp":
 		default:
 			require.Fail("unexpected name", name)
 		}