From ebb5dba5735425e8785ac55450cad6f7aa1b9f2d Mon Sep 17 00:00:00 2001
From: jack-berg <34418638+jack-berg@users.noreply.github.com>
Date: Thu, 6 Mar 2025 16:52:06 -0600
Subject: [PATCH] Mark prometheus exporter as experimental (#180)

---
 examples/kitchen-sink.yaml    | 3 ++-
 schema/meter_provider.json    | 6 +++---
 schema/type_descriptions.yaml | 9 ++++++---
 3 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/examples/kitchen-sink.yaml b/examples/kitchen-sink.yaml
index 8af7ca6..708fefb 100644
--- a/examples/kitchen-sink.yaml
+++ b/examples/kitchen-sink.yaml
@@ -174,7 +174,8 @@ meter_provider:
         # Configure exporter.
         exporter:
           # Configure exporter to be prometheus.
-          prometheus:
+          # This type is in development and subject to breaking changes in minor versions.
+          prometheus/development:
             # Configure host.
             # If omitted or null, localhost is used.
             host: localhost
diff --git a/schema/meter_provider.json b/schema/meter_provider.json
index 0bee0ed..512956f 100644
--- a/schema/meter_provider.json
+++ b/schema/meter_provider.json
@@ -151,8 +151,8 @@
             "minProperties": 1,
             "maxProperties": 1,
             "properties": {
-                "prometheus": {
-                    "$ref": "#/$defs/PrometheusMetricExporter"
+                "prometheus/development": {
+                    "$ref": "#/$defs/ExperimentalPrometheusMetricExporter"
                 }
             },
             "patternProperties": {
@@ -181,7 +181,7 @@
             "type": ["object", "null"],
             "additionalProperties": false
         },
-        "PrometheusMetricExporter": {
+        "ExperimentalPrometheusMetricExporter": {
             "type": ["object", "null"],
             "additionalProperties": false,
             "properties": {
diff --git a/schema/type_descriptions.yaml b/schema/type_descriptions.yaml
index 92ed349..e9e96df 100644
--- a/schema/type_descriptions.yaml
+++ b/schema/type_descriptions.yaml
@@ -466,7 +466,10 @@
 
 - type: MetricExporter
   property_descriptions:
-    prometheus: Configure exporter to be prometheus.
+    prometheus/development: >
+      Configure exporter to be prometheus.
+      
+      This type is in development and subject to breaking changes in minor versions.
     otlp_http: Configure exporter to be OTLP with HTTP transport.
     otlp_grpc: Configure exporter to be OTLP with gRPC transport.
     otlp_file/development: >
@@ -501,7 +504,7 @@
       If omitted or null, false is used.
     with_resource_constant_labels: Configure Prometheus Exporter to add resource attributes as metrics attributes.
   path_patterns:
-    - .meter_provider.readers[].pull.exporter.prometheus
+    - .meter_provider.readers[].pull.exporter.prometheus/development
 - type: PrometheusIncludeExclude
   property_descriptions:
     included: >
@@ -519,7 +522,7 @@
        * If the value of the attribute key matches the wildcard pattern, where '?' matches any single character and '*' matches any number of characters including none.
       If omitted, .included resource attributes are included.
   path_patterns:
-    - .meter_provider.readers[].pull.exporter.prometheus.with_resource_constant_labels
+    - .meter_provider.readers[].pull.exporter.prometheus/development.with_resource_constant_labels
 
 - type: View
   property_descriptions: