FACT-1729 Investigate reducing dependency Azure logs (#2592)

* - tries to reduce dependency logs

* - fix conditional by changing to OR

* - adds some warning logs

* - adds some info logs

* - override sampling dependency type insights

* - adds health request to sampling override

* - revert appinsight changes

* - adds send letter mock to readme

README.md

@@ -18,6 +18,7 @@
   * [Locally](#locally)
   * [Docker environment](#docker-environment)
 * [Onboarding new services](#onboarding-new-services)
+* [Manual Testing](#manual-testing)
 * [License](#license)
 
 ## Overview
@@ -229,6 +230,10 @@ A letter can be in one of the following statuses:
 * `Aborted` - processing of the letter has been aborted (result of a manual intervention)
 * `Skipped` - letter was skipped due to an unrecoverable issue (requires manual action)
 
+## Manual Testing
+
+You can test the different environments of Send Letter Service by using [Send Letter Mock](https://github.com/hmcts/send-letter-mock).
+
 ## License
 
 This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details

lib/applicationinsights.json

@@ -2,5 +2,26 @@
   "connectionString": "${file:/mnt/secrets/rpe-send-letter/APP_INSIGHTS_CONNECTION_STRING}",
   "role": {
     "name": "rpe-send-letter-service"
+  },
+  "preview": {
+    "sampling": {
+      "overrides": [
+        {
+          "telemetryType": "request",
+          "attributes": [
+            {
+              "key": "http.url",
+              "value": "https?://[^/]+/health.*",
+              "matchType": "regexp"
+            }
+          ],
+          "percentage": 1
+        },
+        {
+          "telemetryType": "dependency",
+          "percentage": 0
+        }
+      ]
+    }
   }
 }

src/main/java/uk/gov/hmcts/reform/sendletter/logging/AppInsights.java

@@ -47,7 +47,7 @@ public class AppInsights {
     static final DateTimeFormatter DATE_TIME_FORMAT = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
 
     private final TelemetryClient telemetryClient = new TelemetryClient();
-  
+
 
     public AppInsights() {