otel-tui

A terminal OpenTelemetry viewer inspired by otel-desktop-viewer.

This tool currently supports OpenTelemetry, Zipkin (Traces) and Prometheus (Metrics) formats.

Traces

Metrics

Logs

Getting Started

Currently, this tool exposes the ports:

• 4317 to receive OpenTelemetry signals (gRPC)
• 4318 to receive OpenTelemetry signals (HTTP)
• 9411 to receive Zipkin traces (enabled by --enable-zipkin option)

Options:

Usage:
  otel-tui [flags]

Flags:
      --enable-prom               Enable the prometheus receiver
      --enable-zipkin             Enable the zipkin receiver
      --grpc int                  The port number on which we listen for OTLP grpc payloads (default 4317)
  -h, --help                      help for otel-tui
      --host string               The host where we expose our OTLP endpoints (default "0.0.0.0")
      --http int                  The port number on which we listen for OTLP http payloads (default 4318)
      --prom-target stringArray   The target endpoints for the prometheus receiver (--prom-target "localhost:9000" --prom-target "other-host:9000")
  -v, --version                   version for otel-tui

Homebrew

$ brew install ymtdzzz/tap/otel-tui

go install

$ go install github.com/ymtdzzz/otel-tui@latest

Docker

Run in the container simply:

$ docker run --rm -it --name otel-tui ymtdzzz/otel-tui:latest

Or, run as a background process and attach it:

# Run otel-tui as a background process
$ docker run --rm -dit --name otel-tui ymtdzzz/otel-tui:latest

# Show TUI in your current terminal session
$ docker attach otel-tui

# Detach by pressing Ctrl+p -> Ctrl+q

Docker Compose

First, add service to your manifest (docker-compose.yaml) for the instrumanted app

  oteltui:
    image: ymtdzzz/otel-tui:latest
    container_name: otel-tui
    stdin_open: true
    tty: true
    # Override entrypoint if you want use options
    entrypoint: ["/otel-tui", "--enable-zipkin"]

Modify configuration for otelcol

exporters:
  otlp:
    endpoint: oteltui:4317
service:
  pipelines:
    traces:
      exporters: [otlp]
    logs:
      exporters: [otlp]

Run as a background process and attach it:

# Run services as usual
$ docker compose up -d

# Show TUI in your current terminal session
$ docker compose attach oteltui

# Detach by pressing Ctrl+p -> Ctrl+q

Executable Binary from Github Release page

https://github.com/ymtdzzz/otel-tui/releases

From Source

$ git clone https://github.com/ymtdzzz/otel-tui.git
$ cd otel-tui
$ go run ./...

TODOs

There're a lot of things to do. Here are some of them:

• Traces
  • Display traces
  • Filter traces
  • Show trace information
  • ...
• Metrics
  • Metric stream
    • Display metric stream
    • Filter metrics
    • Show metric information
    • Display basic chart of the selected metric
      • Gauge
      • Sum
      • Histogram
      • ExponentialHistogram
      • Summary
  • Metric list
    • Display metric stream
    • Flexible chart (query, selectable dimensions, etc.)
  • Auto refresh chart
  • Asynchronous chart rendering
  • ...
• Logs
  • Display logs
  • Filter logs
  • Show log information
  • Show logs related to a specific trace or span
  • ...
• UI
  • Improve UI
  • Add more keybindings
  • ...
• Performance
  • Timer based refresh
  • Data rotation (current buffer size: 1000 service root spans and logs)
  • ...
• Configurations
  • Port
  • Refresh interval
  • Buffer size
  • ...