feat: add loki compatible logging output formatting

[prom3theu5]

PR Type

Enhancement

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Description

• Added support for Grafana Loki-compatible logging output formatting
• Introduced new parameters to control log output format:
  • lokiCompatible: enables Loki-compatible output
  • rawCompactJson: toggles between compact JSON and Loki JSON text format
• Added Serilog.Sinks.Grafana.Loki package and its dependencies
• Updated various package versions including OpenTelemetry and Serilog components

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Changes walkthrough 📝

	Relevant files
Enhancement	OtlpServiceExtensions.cs Add Loki logging format support to OTLP service                    src/SimCube.Aspire/Features/Otlp/OtlpServiceExtensions.cs Added support for Loki-compatible logging output formatting Added new parameters lokiCompatible and rawCompactJson to control log output format Modified logger configuration to support different output formatters +20/-7    GlobalUsings.cs Add Loki-related global usings                                                      src/SimCube.Aspire/GlobalUsings.cs Added global usings for Serilog.Formatting.Compact Added global usings for Serilog.Sinks.Grafana.Loki +2/-0
Dependencies	Directory.Packages.props Add Loki package and update dependencies                                  Directory.Packages.props Added Serilog.Sinks.Grafana.Loki package Updated various package versions Reorganized package structure +42/-41  SimCube.Aspire.csproj Add Loki sink package reference                                                    src/SimCube.Aspire/SimCube.Aspire.csproj Added Serilog.Sinks.Grafana.Loki package reference +1/-0

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[qodo-merge-pro]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Null Reference The configuration value for OtlpLiterals.ServiceName is accessed without null check which could cause runtime exception Code Duplication The default console output format is checked and set twice - once in the parameter default and again in the if condition Error Handling The switch expression for lokiCompatible formatting doesn't handle potential null cases from the formatters

[qodo-merge-pro]

PR Code Suggestions ✨

Explore these optional code suggestions:

Category	Suggestion	Score
Possible issue	Add null check for configuration value to prevent runtime exceptions Add null check for the configuration[OtlpLiterals.ServiceName] to prevent potential runtime exceptions if the service name is not configured. src/SimCube.Aspire/Features/Otlp/OtlpServiceExtensions.cs [49] -.Enrich.WithProperty(nameof(OtlpLiterals.ServiceName), configuration[OtlpLiterals.ServiceName]); +.Enrich.WithProperty(nameof(OtlpLiterals.ServiceName), configuration[OtlpLiterals.ServiceName] ?? "UnknownService"); Apply this suggestion Suggestion importance[1-10]: 8 Why: The suggestion addresses a potential runtime exception by adding a null check for the service name configuration. This is a critical defensive programming practice that can prevent application crashes.	8
General	Extract complex configuration logic into a separate method for better maintainability Move the switch expression to a separate method to improve code readability and maintainability, as it handles complex logging configuration logic. src/SimCube.Aspire/Features/Otlp/OtlpServiceExtensions.cs [51-55] -config = lokiCompatible switch -{ - true => config.WriteTo.Console(rawCompactJson ? new RenderedCompactJsonFormatter() : new LokiJsonTextFormatter()), - false => config.WriteTo.Spectre(outputTemplate: consoleOutputFormat), -}; +config = ConfigureLogOutput(config, lokiCompatible, rawCompactJson, consoleOutputFormat); +private static LoggerConfiguration ConfigureLogOutput( + LoggerConfiguration config, + bool lokiCompatible, + bool rawCompactJson, + string consoleOutputFormat) => + lokiCompatible + ? config.WriteTo.Console(rawCompactJson ? new RenderedCompactJsonFormatter() : new LokiJsonTextFormatter()) + : config.WriteTo.Spectre(outputTemplate: consoleOutputFormat); + Apply this suggestion Suggestion importance[1-10]: 5 Why: The suggestion improves code organization and readability by extracting complex logging configuration logic into a dedicated method. While beneficial for maintainability, it's more of a code structure improvement than a critical fix.	5