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51 lines
1.8 KiB
Markdown
51 lines
1.8 KiB
Markdown
# Loki Configuration
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This directory contains the configuration for Grafana Loki, which serves as the log storage and aggregation system in this environment.
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## Overview
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Loki is a horizontally-scalable, highly-available, multi-tenant log aggregation system designed by Grafana Labs. It is optimized for efficiently storing and querying logs from Kubernetes and microservices deployments.
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## Current Setup
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- Running as a single instance in this CS Repro environment
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- Available at http://localhost:3100
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- Receives logs from Grafana Alloy (which replaced Promtail)
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## Configuration Details
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The `loki-config.yaml` file contains the core configuration for the Loki service:
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- **Storage**: Configured to use the local filesystem for simplicity
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- **Schema**: Uses the v11 schema with appropriate index/chunk configurations
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- **Compaction**: Enabled to optimize storage over time
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- **Limits**: Configured with reasonable defaults for this environment
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- **Frontend**: Configured for basic query handling
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## Querying Logs
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Logs can be queried in several ways:
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1. **LogQL via Grafana**: The primary and most user-friendly method
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2. **Direct Loki API**: Using the API endpoints at http://localhost:3100/loki/api/v1/
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3. **LogCLI**: If installed, you can use Grafana's logcli tool
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Example LogQL queries:
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```
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{job="mattermost"} | json | level=~"error|warn"
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{job="mattermost"} | json | level="error" | line_format "{{.msg}}"
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```
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## Labels
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The current configuration uses the following key labels:
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- `job`: The source application ("mattermost")
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- `level`: The log level (error, warn, info, debug, etc.)
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- `service_name`: Identifies the service
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- `filename`: The source log file
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## More Information
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- [Grafana Loki Documentation](https://grafana.com/docs/loki/latest/)
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- [LogQL Query Language](https://grafana.com/docs/loki/latest/logql/) |