Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

migrations/outputs_influxdb/migration.go

@@ -0,0 +1,65 @@
+package outputs_influxdb
+
+import (
+	"fmt"
+
+	"github.com/influxdata/toml"
+	"github.com/influxdata/toml/ast"
+
+	"github.com/influxdata/telegraf/internal/choice"
+	"github.com/influxdata/telegraf/migrations"
+)
+
+// Migration function
+func migrate(tbl *ast.Table) ([]byte, string, error) {
+	// Decode the old data structure
+	var plugin map[string]interface{}
+	if err := toml.UnmarshalTable(tbl, &plugin); err != nil {
+		return nil, "", err
+	}
+
+	// Check for deprecated option(s) and migrate them
+	var applied bool
+	if oldURL, found := plugin["url"]; found {
+		applied = true
+
+		var urls []string
+		// Merge the old URL and the new URLs with deduplication
+		if newURLs, found := plugin["urls"]; found {
+			var err error
+			urls, err = migrations.AsStringSlice(newURLs)
+			if err != nil {
+				return nil, "", fmt.Errorf("'urls' setting: %w", err)
+			}
+		}
+		ou, ok := oldURL.(string)
+		if !ok {
+			return nil, "", fmt.Errorf("unexpected 'url' entry %v (%T)", ou, ou)
+		}
+
+		if !choice.Contains(ou, urls) {
+			urls = append(urls, ou)
+		}
+
+		// Update replacement and remove the deprecated setting
+		plugin["urls"] = urls
+		delete(plugin, "url")
+	}
+
+	// No options migrated so we can exit early
+	if !applied {
+		return nil, "", migrations.ErrNotApplicable
+	}
+
+	// Create the corresponding plugin configurations
+	cfg := migrations.CreateTOMLStruct("outputs", "influxdb")
+	cfg.Add("outputs", "influxdb", plugin)
+
+	output, err := toml.Marshal(cfg)
+	return output, "", err
+}
+
+// Register the migration function for the plugin type
+func init() {
+	migrations.AddPluginOptionMigration("outputs.influxdb", migrate)
+}