skkuding/codedang
Mar 2025 – Apr 2026
13 Months active
Languages Used
GoTypeScriptHCLYAMLenvCaddyfilehclyaml
Technical Skills
Backend DevelopmentDistributed TracingGoMicroservicesOpenTelemetryRabbitMQ
Jangsu Son
PROFILE
Jangsu Son
Over 13 months, Manamana contributed to the skkuding/codedang repository by engineering robust infrastructure and observability solutions for a cloud-native platform. He implemented end-to-end distributed tracing and centralized monitoring using Go, TypeScript, and Kubernetes, enabling rapid incident diagnosis and performance tuning. His work included modernizing Redis deployments, automating secrets management with AWS and Terraform, and deploying scalable CI/CD pipelines. Manamana also introduced load testing with k6 and enhanced disaster recovery through declarative ArgoCD workflows. By integrating tools like Prometheus, Grafana, and OpenTelemetry, he delivered resilient, production-ready systems that improved operational visibility, deployment reliability, and cross-environment security for the team.
Overall Statistics
Feature vs Bugs
84%Features
Repository Contributions
75Total
Bugs
7
Commits
75
Features
36
Lines of code
21,593
Activity Months13
Your Network
25 peopleWork History
April 2026
4 Commits • 3 Features
Apr 1, 2026April 2026 delivered major improvements in performance validation, observability, and disaster recovery. Key outcomes include k6-based load testing for the submission judging pipeline with dual outputs (Prometheus remote write and local JSON logs), centralized monitoring and alerting across Grafana/Prometheus/CloudWatch with Discord notifications, and robust RabbitMQ monitoring dashboards. DR and ArgoCD deployment reliability were enhanced through standardized secret names, declarative operator management, and staged deployment order, improving deployment predictability and resilience across Stage and Production. These initiatives enhanced performance visibility, reduced MTTR, and strengthened business continuity for the codedang platform.
4 Commits • 3 Features
Apr 1, 2026April 2026 delivered major improvements in performance validation, observability, and disaster recovery. Key outcomes include k6-based load testing for the submission judging pipeline with dual outputs (Prometheus remote write and local JSON logs), centralized monitoring and alerting across Grafana/Prometheus/CloudWatch with Discord notifications, and robust RabbitMQ monitoring dashboards. DR and ArgoCD deployment reliability were enhanced through standardized secret names, declarative operator management, and staged deployment order, improving deployment predictability and resilience across Stage and Production. These initiatives enhanced performance visibility, reduced MTTR, and strengthened business continuity for the codedang platform.
April 2026
March 2026
1 Commits • 1 Features
Mar 1, 2026In March 2026, delivered a critical RDS infrastructure upgrade and enhanced monitoring for production resilience. Implemented storage and performance improvements with in-place updates to minimize downtime, and established ongoing visibility through automated backups and Performance Insights. All changes were tracked and applied via a single in-place update (PR referencing commit 9dac341584ae58d784960121c53ee455d95cf5b0) to support reliability and operational efficiency based on the March work.
March 2026
1 Commits • 1 Features
Mar 1, 2026In March 2026, delivered a critical RDS infrastructure upgrade and enhanced monitoring for production resilience. Implemented storage and performance improvements with in-place updates to minimize downtime, and established ongoing visibility through automated backups and Performance Insights. All changes were tracked and applied via a single in-place update (PR referencing commit 9dac341584ae58d784960121c53ee455d95cf5b0) to support reliability and operational efficiency based on the March work.
February 2026
18 Commits • 9 Features
Feb 1, 2026February 2026 highlights strong security hardening, GitOps reliability, and observability improvements across staging and production. Delivered automated secrets backup, updated resource placement, modernized monitoring stack, and centralized storage with governance rules, enabling faster resilience and clearer business insights.
18 Commits • 9 Features
Feb 1, 2026February 2026 highlights strong security hardening, GitOps reliability, and observability improvements across staging and production. Delivered automated secrets backup, updated resource placement, modernized monitoring stack, and centralized storage with governance rules, enabling faster resilience and clearer business insights.
February 2026
January 2026
5 Commits • 3 Features
Jan 1, 2026January 2026 (2026-01) delivered practical infra and DevOps enhancements for codedang, focusing on automation, onboarding, local development ease, and deployment reliability. key outcomes include deploying n8n on Kubernetes with GitHub and Notion integration to streamline task workflows; producing onboarding docs for Kubernetes and Terraform deployment to accelerate team ramp-up; enabling smoother local development by introducing a DISABLE_INSTRUMENTATION toggle; fixing ArgoCD Grafana manifest generation and updating Helm charts to support public dashboards and GitHub OAuth role synchronization; and removing the database connection_limit from DATABASE_URL to improve cross-service compatibility. These efforts reduce manual toil, shorten deployment cycles, and improve observability and operational readiness across environments.
January 2026
5 Commits • 3 Features
Jan 1, 2026January 2026 (2026-01) delivered practical infra and DevOps enhancements for codedang, focusing on automation, onboarding, local development ease, and deployment reliability. key outcomes include deploying n8n on Kubernetes with GitHub and Notion integration to streamline task workflows; producing onboarding docs for Kubernetes and Terraform deployment to accelerate team ramp-up; enabling smoother local development by introducing a DISABLE_INSTRUMENTATION toggle; fixing ArgoCD Grafana manifest generation and updating Helm charts to support public dashboards and GitHub OAuth role synchronization; and removing the database connection_limit from DATABASE_URL to improve cross-service compatibility. These efforts reduce manual toil, shorten deployment cycles, and improve observability and operational readiness across environments.
December 2025
6 Commits • 2 Features
Dec 1, 2025December 2025 monthly summary focusing on delivering reliability, performance, and expanded operational capabilities for the codedang stack. Key infra and application changes were implemented to improve connectivity, scalability, and control in production, while reducing risk during peak usage periods.
6 Commits • 2 Features
Dec 1, 2025December 2025 monthly summary focusing on delivering reliability, performance, and expanded operational capabilities for the codedang stack. Key infra and application changes were implemented to improve connectivity, scalability, and control in production, while reducing risk during peak usage periods.
December 2025
November 2025
6 Commits • 4 Features
Nov 1, 2025November 2025 monthly summary for skkuding/codedang focused on delivering external accessibility, DNS challenges, GitOps deployment, and observability for staging while improving security and reliability. Key outcomes include DNS-01 ACME updates, public MinIO exposure, ArgoCD-driven Plag service deployment, and staging monitoring with Grafana/Prometheus with isolated data and improved guardrails.
November 2025
6 Commits • 4 Features
Nov 1, 2025November 2025 monthly summary for skkuding/codedang focused on delivering external accessibility, DNS challenges, GitOps deployment, and observability for staging while improving security and reliability. Key outcomes include DNS-01 ACME updates, public MinIO exposure, ArgoCD-driven Plag service deployment, and staging monitoring with Grafana/Prometheus with isolated data and improved guardrails.
October 2025
3 Commits • 3 Features
Oct 1, 2025October 2025 monthly work summary for skkuding/codedang: Delivered key reliability and observability improvements, aligning with business goals to reduce build failures, stabilize critical token retrieval flows, and enhance log-driven incident response. Focused on CI stability, Secrets Manager reliability, and end-to-end observability via Loki/Promtail, with concrete commits enabling production-grade operations.
3 Commits • 3 Features
Oct 1, 2025October 2025 monthly work summary for skkuding/codedang: Delivered key reliability and observability improvements, aligning with business goals to reduce build failures, stabilize critical token retrieval flows, and enhance log-driven incident response. Focused on CI stability, Secrets Manager reliability, and end-to-end observability via Loki/Promtail, with concrete commits enabling production-grade operations.
October 2025
September 2025
12 Commits • 3 Features
Sep 1, 2025Monthly summary for 2025-09 focusing on delivering observability, production readiness, and secure credential workflows. Key work includes deploying Grafana/Prometheus/Loki/OpenTelemetry, enabling multi-tenant header support, fixing otel-collector path, applying Prometheus integration, and launching grafana.codedang.com; implementing Grafana GitHub OAuth; migrating production deployments to the release branch; integrating Google Analytics measurement ID for frontend in production; building an Instagram API token management flow with AWS Lambda and Secrets Manager and updating frontend to securely access credentials; addressing environment variable naming and secret reference alignment for MinIO/S3.
September 2025
12 Commits • 3 Features
Sep 1, 2025Monthly summary for 2025-09 focusing on delivering observability, production readiness, and secure credential workflows. Key work includes deploying Grafana/Prometheus/Loki/OpenTelemetry, enabling multi-tenant header support, fixing otel-collector path, applying Prometheus integration, and launching grafana.codedang.com; implementing Grafana GitHub OAuth; migrating production deployments to the release branch; integrating Google Analytics measurement ID for frontend in production; building an Instagram API token management flow with AWS Lambda and Secrets Manager and updating frontend to securely access credentials; addressing environment variable naming and secret reference alignment for MinIO/S3.
August 2025
13 Commits • 3 Features
Aug 1, 2025Monthly work summary for 2025-08 focusing on on-prem deployment modernization, observability enhancements, and environment isolation for skkuding/codedang. Delivered key features enabling production-grade Redis deployment on-prem, on-prem Client API deployment with secure credentials management, and centralized observability stack to unify prod and staging monitoring.
13 Commits • 3 Features
Aug 1, 2025Monthly work summary for 2025-08 focusing on on-prem deployment modernization, observability enhancements, and environment isolation for skkuding/codedang. Delivered key features enabling production-grade Redis deployment on-prem, on-prem Client API deployment with secure credentials management, and centralized observability stack to unify prod and staging monitoring.
August 2025
July 2025
2 Commits • 2 Features
Jul 1, 2025July 2025 monthly summary for skkuding/codedang: Focused on stabilizing the CI/CD deployment surface and preparing the staging environment for observability. Delivered concrete changes in image tagging and instrumentation readiness, reinforcing deployment reliability and debuggability. No major bugs reported this period; emphasis on proactive stability and measurable business value.
July 2025
2 Commits • 2 Features
Jul 1, 2025July 2025 monthly summary for skkuding/codedang: Focused on stabilizing the CI/CD deployment surface and preparing the staging environment for observability. Delivered concrete changes in image tagging and instrumentation readiness, reinforcing deployment reliability and debuggability. No major bugs reported this period; emphasis on proactive stability and measurable business value.
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for skkuding/codedang focusing on resource labeling and observability improvements. Key outcomes include a refactor of resource labeling from environment under service to deployment.environment, the introduction of new resource detectors (including container detection) to enhance observability and resource attribution accuracy, and a targeted bug fix to correct resource labeling (commit #2815).
1 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for skkuding/codedang focusing on resource labeling and observability improvements. Key outcomes include a refactor of resource labeling from environment under service to deployment.environment, the introduction of new resource detectors (including container detection) to enhance observability and resource attribution accuracy, and a targeted bug fix to correct resource labeling (commit #2815).
June 2025
May 2025
3 Commits • 1 Features
May 1, 2025May 2025 monthly summary: Delivered a unified OpenTelemetry instrumentation rollout across admin, client, and iris in the skkuding/codedang repo by centralizing instrumentation logic into a shared library, removing deprecated Loki configs, and introducing environment labeling and default enablement. Implemented development defaults and a DISABLE_INSTRUMENTATION toggle to ensure safe, incremental rollouts and easier debugging. These changes enhance cross-service observability, reduce mean time to detect and resolve issues, and support proactive capacity planning.
May 2025
3 Commits • 1 Features
May 1, 2025May 2025 monthly summary: Delivered a unified OpenTelemetry instrumentation rollout across admin, client, and iris in the skkuding/codedang repo by centralizing instrumentation logic into a shared library, removing deprecated Loki configs, and introducing environment labeling and default enablement. Implemented development defaults and a DISABLE_INSTRUMENTATION toggle to ensure safe, incremental rollouts and easier debugging. These changes enhance cross-service observability, reduce mean time to detect and resolve issues, and support proactive capacity planning.
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025, codedang project: Strengthened observability and reliability by delivering end-to-end tracing across the submission workflow and RabbitMQ. Implemented OpenTelemetry context propagation to enable trace visibility from service submission through message handling, facilitating faster root-cause analysis and better incident response. Updated tracing dependencies and added header conversion utilities to simplify propagation and reduce operational risk. Overall, this work improved fault diagnosis, performance tuning, and operational insights; no major bugs fixed this month.
1 Commits • 1 Features
Mar 1, 2025March 2025, codedang project: Strengthened observability and reliability by delivering end-to-end tracing across the submission workflow and RabbitMQ. Implemented OpenTelemetry context propagation to enable trace visibility from service submission through message handling, facilitating faster root-cause analysis and better incident response. Updated tracing dependencies and added header conversion utilities to simplify propagation and reduce operational risk. Overall, this work improved fault diagnosis, performance tuning, and operational insights; no major bugs fixed this month.
March 2025
Activity
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Quality Metrics
Correctness90.6%
Maintainability84.8%
Architecture87.6%
Performance79.8%
AI Usage31.2%
Skills & Technologies
Programming Languages
CC++CaddyfileGoHCLJSONJavaJavaScriptPythonShell
Technical Skills
API IntegrationAPI developmentAWSArgo CDArgoCDAuthenticationBackend DevelopmentCI/CDCloudCloud InfrastructureConfiguration ManagementContinuous DeploymentContinuous IntegrationDNS ManagementDatabase Management
Repositories Contributed To
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