SRE/Tools

SRE/OtelOpenTelemetry

2026 Training - https://csfoundations.cs.aalto.fi/en/courses/designing-and-building-scalable-web-applications/part-6/3-lgtm-stack

# DockerCompose compose.yaml
#   grafana localhost:3000 admin:admin
#
  lgtm:
    image: grafana/otel-lgtm:0.8.6
    ports:
      - "3000:3000"
      - "4318:4318"

Test with deno demo app

Dockerfile

FROM denoland/deno:alpine-2.2.3
WORKDIR /app
COPY deno.json .
RUN DENO_FUTURE=1 deno install
COPY . .
CMD [ "run", "--allow-env", "--allow-net", "--allow-read", "--unstable-otel", "--watch", "app-run.js" ]

project.env

OTEL_DENO=true
OTEL_EXPORTER_OTLP_ENDPOINT=http://lgtm:4318
OTEL_SERVICE_NAME=deno_server