Make Azure Monitor exporter conditional for local dev - #94
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Lily Ma (lilyjma) wants to merge 1 commit into
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Make Azure Monitor exporter conditional for local dev#94Lily Ma (lilyjma) wants to merge 1 commit into
Lily Ma (lilyjma) wants to merge 1 commit into
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Skip UseAzureMonitorExporter() when APPLICATIONINSIGHTS_CONNECTION_STRING is not set so func start works locally without extra configuration. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Rohit Ranjan (RohitRanjanMS)
suggested changes
May 11, 2026
| builder.Services.AddOpenTelemetry() | ||
| .UseFunctionsWorkerDefaults() | ||
| .UseAzureMonitorExporter(); | ||
| var otel = builder.Services.AddOpenTelemetry() |
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We should move .AddOpenTelemetry() call to inside if block as well.
if (!string.IsNullOrEmpty(Environment.GetEnvironmentVariable("APPLICATIONINSIGHTS_CONNECTION_STRING")))
{
builder.Services.AddOpenTelemetry()
.UseFunctionsWorkerDefaults()
.UseAzureMonitorExporter();
}
| @@ -11,9 +11,13 @@ | |||
|
|
|||
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I prefer the approach of using regions so that we do not have unexpected behaviour in prod e.g.
#if DEBUG
if (!string.IsNullOrEmpty(Environment.GetEnvironmentVariable("APPLICATIONINSIGHTS_CONNECTION_STRING")))
{
services.AddOpenTelemetry()
.UseFunctionsWorkerDefaults()
.UseAzureMonitorExporter();
}
#else
services.AddOpenTelemetry()
.UseFunctionsWorkerDefaults()
.UseAzureMonitorExporter();
#endif
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Problem
All 5 projects crash on
func startlocally becauseUseAzureMonitorExporter()requiresAPPLICATIONINSIGHTS_CONNECTION_STRING, which is only set in Azure (provisioned by bicep).Fix
Made the exporter conditional — only wire it up when the connection string env var is present. OpenTelemetry +
UseFunctionsWorkerDefaults()still initializes; telemetry in Azure is unaffected.Files changed
src/FunctionsMcpApp/Program.cssrc/FunctionsMcpPrompts/Program.cssrc/FunctionsMcpResources/Program.cssrc/FunctionsMcpTool/Program.cssrc/McpWeatherApp/Program.cs