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The Eco² globe character, refined for this portfolio from the latest official main character: a sky-blue globe with green land, a sprout on top and a brown smiling face
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Eco²

Backend · Cloud infrastructure

Recycling guidance from one photo and a conversation.

An all-in-one AI assistant that understands how recycling works in Korea.

2025.10.31 — 2026.02.10

Team project · infrastructure and deployment foundation → domain backend → async processing, conversational agent, verification

2025 새싹 해커톤 (Saessak Hackathon)Excellence Award · 2025.12.02

  • Web appService closed

Stalled stages were found by reading logs, metrics and traces together.

Each signal has its own collection, storage and viewing path. Logs and trace IDs were aligned so one request can be followed across both tools.

  1. Logs
    1. Container CRI logs
    2. Fluent Bit
    3. Elasticsearch (ECK)
    4. Kibana
  2. Metrics · alerts
    1. API · nodes · workers
    2. Prometheus
    3. Grafana · Alertmanager
  3. Distributed tracing
    1. Service calls
    2. OpenTelemetry
    3. Jaeger
  4. AI execution
    1. LangGraph runs
    2. LangSmith
  5. Service mesh
    1. Istio traffic
    2. Kiali