chore: bugfix

.chloggen/envprovider-bugfix-yaml

@@ -0,0 +1,25 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: bug_fix
+
+# The name of the component, or a single word describing the area of concern, (e.g. otlpreceiver)
+component: envprovider
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Set the config key to default if env is unset of set to empty string
+
+# One or more tracking issues or pull requests related to the change
+issues: [11531]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:
+
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: []

confmap/provider/envprovider/provider.go

@@ -52,11 +52,11 @@ func (emp *provider) Retrieve(_ context.Context, uri string, _ confmap.WatcherFu
 	}
 
 	val, exists := os.LookupEnv(envVarName)
-	if !exists {
+	if !exists || val == "" {
 		if defaultValuePtr != nil {
 			val = *defaultValuePtr
 		} else {
-			emp.logger.Warn("Configuration references unset environment variable", zap.String("name", envVarName))
+			emp.logger.Warn("Configuration references unset/empty environment variable", zap.String("name", envVarName))
 		}
 	} else if len(val) == 0 {
 		emp.logger.Info("Configuration references empty environment variable", zap.String("name", envVarName))