
Sunu worked extensively on the 2i2c-org/infrastructure repository, delivering robust cloud infrastructure and DevOps solutions for JupyterHub and related platforms. Over 13 months, Sunu automated storage provisioning, disaster recovery, and monitoring using Terraform, Kubernetes, and Helm, while also improving deployment reliability through CI/CD and configuration management. By implementing features such as automated EBS backups, persistent NFS home directories, and group-based access controls, Sunu addressed operational risks and streamlined collaboration. The work demonstrated strong proficiency in Bash and YAML, with disciplined documentation and validation in staging environments, resulting in resilient, maintainable systems that improved both user experience and administrative efficiency.

December 2025 monthly summary for 2i2c-org/infrastructure: Stabilized the staging environment by aligning with the updated profile management stack and validating integration to minimize deployment risk. This work focused on updating staging config and validating the changes via targeted tests, with clear traceability to commits.
December 2025 monthly summary for 2i2c-org/infrastructure: Stabilized the staging environment by aligning with the updated profile management stack and validating integration to minimize deployment risk. This work focused on updating staging config and validating the changes via targeted tests, with clear traceability to commits.
Implemented authentication state management for the staging hub to enhance security and stabilize user sessions. Delivered as a focused feature in the 2i2c-org/infrastructure repo, enabling persistent authentication state on staging. Commit associated with the change: 0841bf83b7b4398d4ac788ad8828e6bd8c83f4bb (MAAP: enable auth state on staging hub).
Implemented authentication state management for the staging hub to enhance security and stabilize user sessions. Delivered as a focused feature in the 2i2c-org/infrastructure repo, enabling persistent authentication state on staging. Commit associated with the change: 0841bf83b7b4398d4ac788ad8828e6bd8c83f4bb (MAAP: enable auth state on staging hub).
Monthly summary for 2025-10: Focused on improving testing and staging environments for JupyterHub and BinderHub within the 2i2c-org/infrastructure repo. Delivered a custom base image for testing, stabilized BinderHub staging with refined access scopes and API integration variables, and improved reproducibility of CI/testing pipelines.
Monthly summary for 2025-10: Focused on improving testing and staging environments for JupyterHub and BinderHub within the 2i2c-org/infrastructure repo. Delivered a custom base image for testing, stabilized BinderHub staging with refined access scopes and API integration variables, and improved reproducibility of CI/testing pipelines.
In September 2025, delivered a focused feature in 2i2c-org/infrastructure to enhance admin access to VEDA hubs by enabling All-Users directory mounts. This change updates singleuserAdmin configuration to ensure proper mounting for Jovyan and RStudio environments, reducing manual configuration and enabling admins to access all user home directories efficiently. The work is captured in a single commit and aligns with ongoing efforts to improve hub reliability, onboarding, and support. Business value: streamlined admin operations, faster troubleshooting, and better governance of user environments.
In September 2025, delivered a focused feature in 2i2c-org/infrastructure to enhance admin access to VEDA hubs by enabling All-Users directory mounts. This change updates singleuserAdmin configuration to ensure proper mounting for Jovyan and RStudio environments, reducing manual configuration and enabling admins to access all user home directories efficiently. The work is captured in a single commit and aligns with ongoing efforts to improve hub reliability, onboarding, and support. Business value: streamlined admin operations, faster troubleshooting, and better governance of user environments.
July 2025 monthly summary for 2i2c-org/infrastructure focused on stabilizing the staging environment and ensuring persistent storage for RStudio in the VEDA cluster. Delivered a release upgrade for the staging hub and resolved a critical persistence issue that could impact user data continuity.
July 2025 monthly summary for 2i2c-org/infrastructure focused on stabilizing the staging environment and ensuring persistent storage for RStudio in the VEDA cluster. Delivered a release upgrade for the staging hub and resolved a critical persistence issue that could impact user data continuity.
June 2025: Delivered targeted staging changes to validate JupyterHub profile enhancements for NASA VEDA. Updated the staging environment by changing the JupyterHub configuration image tag to test jupyterhub-fancy-profiles 0.5.0, enabling rapid validation of profile-driven customization. This work improves readiness for production rollout and demonstrates disciplined change management in the staging environment.
June 2025: Delivered targeted staging changes to validate JupyterHub profile enhancements for NASA VEDA. Updated the staging environment by changing the JupyterHub configuration image tag to test jupyterhub-fancy-profiles 0.5.0, enabling rapid validation of profile-driven customization. This work improves readiness for production rollout and demonstrates disciplined change management in the staging environment.
May 2025 monthly summary for 2i2c-org/infrastructure: Delivered group-specific shared directories for MAAP staging JupyterHub and resolved permissions issues affecting access, resulting in improved collaboration, data organization, and staging reliability. Demonstrated strong DevOps execution in config management, Linux permissions, and Git-based workflows, aligning with business goals of smoother collaboration and data governance in MAAP staging environments.
May 2025 monthly summary for 2i2c-org/infrastructure: Delivered group-specific shared directories for MAAP staging JupyterHub and resolved permissions issues affecting access, resulting in improved collaboration, data organization, and staging reliability. Demonstrated strong DevOps execution in config management, Linux permissions, and Git-based workflows, aligning with business goals of smoother collaboration and data governance in MAAP staging environments.
April 2025 — NASA VEDA JupyterHub Image Version Upgrade in 2i2c-org/infrastructure: Updated production hub image tag and basehub image to release version jupyterhub-fancy-profiles 0.4.1 across all hubs. Documentation and traceability via two commits: 4edd51cec70e4ae01c400029872b198abcf39b3b and e7d5fe20e4fe2dd1059acb6dbb5073744321c6e6.
April 2025 — NASA VEDA JupyterHub Image Version Upgrade in 2i2c-org/infrastructure: Updated production hub image tag and basehub image to release version jupyterhub-fancy-profiles 0.4.1 across all hubs. Documentation and traceability via two commits: 4edd51cec70e4ae01c400029872b198abcf39b3b and e7d5fe20e4fe2dd1059acb6dbb5073744321c6e6.
Month: 2025-03 performance summary focusing on business value and technical achievements across two repositories. Delivered stability enhancements, feature upgrades, and validated changes in staging to reduce deployment risk and accelerate user-facing improvements. Key outcomes: - Bug fix: Stac-fastapi-pgstac Pagination bug resolved in IFRCGo/go-deploy by updating the image tag from 5.0.0 to 5.0.0-test7, addressing an incorrect '/stac' segment in pagination links. Commit: 8f643b7a3e75c2a2d0f83769d319515efff4bf64. - Feature: Ingress-nginx Deployment Stability via Helm Pin implemented in Terraform by pinning the ingress-nginx chart to 4.12.1, preventing unplanned upgrades and ensuring stable infrastructure deployments. Commit: 3e04f81993604caf9edc9d3cf9776edceed40f64. - Feature: Upgrade JupyterHub Fancy Profiles to 0.4.1 and validate in NASA VEDA cluster staging within 2i2c-org/infrastructure. Commits: f6a94ef2a540f507efc4264a0e346ee8efc7e012; 331abfd88ec46793afb08189e4f8df0e29caa206. Overall impact and accomplishments: - Improved API reliability and user experience for STAC-based clients through correct pagination behavior. - Increased deployment stability and reduced risk of inadvertent infra changes via explicit version pinning. - Accelerated readiness of enhanced user profiles with staging validation in a NASA VEDA cluster environment, reducing production risk. Technologies/skills demonstrated: - Kubernetes and Helm for deployment stability, Terraform for IaC, and version pinning practices. - Python-based microservices (stac-fastapi-pgstac) and related paging logic. - JupyterHub configuration upgrades and staging validation in a multi-cluster environment. - CI/CD discipline and cross-repo coordination for feature delivery and bug fixes.
Month: 2025-03 performance summary focusing on business value and technical achievements across two repositories. Delivered stability enhancements, feature upgrades, and validated changes in staging to reduce deployment risk and accelerate user-facing improvements. Key outcomes: - Bug fix: Stac-fastapi-pgstac Pagination bug resolved in IFRCGo/go-deploy by updating the image tag from 5.0.0 to 5.0.0-test7, addressing an incorrect '/stac' segment in pagination links. Commit: 8f643b7a3e75c2a2d0f83769d319515efff4bf64. - Feature: Ingress-nginx Deployment Stability via Helm Pin implemented in Terraform by pinning the ingress-nginx chart to 4.12.1, preventing unplanned upgrades and ensuring stable infrastructure deployments. Commit: 3e04f81993604caf9edc9d3cf9776edceed40f64. - Feature: Upgrade JupyterHub Fancy Profiles to 0.4.1 and validate in NASA VEDA cluster staging within 2i2c-org/infrastructure. Commits: f6a94ef2a540f507efc4264a0e346ee8efc7e012; 331abfd88ec46793afb08189e4f8df0e29caa206. Overall impact and accomplishments: - Improved API reliability and user experience for STAC-based clients through correct pagination behavior. - Increased deployment stability and reduced risk of inadvertent infra changes via explicit version pinning. - Accelerated readiness of enhanced user profiles with staging validation in a NASA VEDA cluster environment, reducing production risk. Technologies/skills demonstrated: - Kubernetes and Helm for deployment stability, Terraform for IaC, and version pinning practices. - Python-based microservices (stac-fastapi-pgstac) and related paging logic. - JupyterHub configuration upgrades and staging validation in a multi-cluster environment. - CI/CD discipline and cross-repo coordination for feature delivery and bug fixes.
February 2025 performance summary focused on storage reliability, infra simplification, and deployment hygiene across two core repositories. Key initiatives delivered storage-enabled JupyterHub environments, governance for MAAP hubs, and streamlined CI/CD configurations, translating into improved reliability, cost efficiency, and faster delivery cycles.
February 2025 performance summary focused on storage reliability, infra simplification, and deployment hygiene across two core repositories. Key initiatives delivered storage-enabled JupyterHub environments, governance for MAAP hubs, and streamlined CI/CD configurations, translating into improved reliability, cost efficiency, and faster delivery cycles.
Month: 2025-01 — Delivered storage, image, naming, and resource-management improvements across two repositories, enabling persistent user environments, more stable notebook workloads, and cost-efficient runtimes. Focused on standardization and performance gains with clear business value.
Month: 2025-01 — Delivered storage, image, naming, and resource-management improvements across two repositories, enabling persistent user environments, more stable notebook workloads, and cost-efficient runtimes. Focused on standardization and performance gains with clear business value.
December 2024 highlights focused on delivering business value through reliability, disaster recovery readiness, and deployment automation across two repositories. Key outcomes include expanded AWS EBS storage restoration guidance, enabling data restoration workflows and volume resizing; enabling data restoration by mounting EBS volumes to Kubernetes pods; proactive storage quota monitoring with PagerDuty alerts; reliability hardening through readiness checks and safer PV/PVC handling; and robust ArgoCD-driven deployments for eoapi staging, along with Crunchy PostgreSQL Operator integration to improve DB management in staging. Overall, the work reduces recovery time, improves operational visibility, and strengthens staging and production readiness through documentation discipline, defensive coding patterns, and modern deployment automation.
December 2024 highlights focused on delivering business value through reliability, disaster recovery readiness, and deployment automation across two repositories. Key outcomes include expanded AWS EBS storage restoration guidance, enabling data restoration workflows and volume resizing; enabling data restoration by mounting EBS volumes to Kubernetes pods; proactive storage quota monitoring with PagerDuty alerts; reliability hardening through readiness checks and safer PV/PVC handling; and robust ArgoCD-driven deployments for eoapi staging, along with Crunchy PostgreSQL Operator integration to improve DB management in staging. Overall, the work reduces recovery time, improves operational visibility, and strengthens staging and production readiness through documentation discipline, defensive coding patterns, and modern deployment automation.
November 2024 monthly summary for 2i2c-org/infrastructure: Consolidated delivery of automated backups, improved observability, and documentation accuracy to strengthen reliability and business value. Achievements focus on data protection, monitoring, and governance improvements.
November 2024 monthly summary for 2i2c-org/infrastructure: Consolidated delivery of automated backups, improved observability, and documentation accuracy to strengthen reliability and business value. Achievements focus on data protection, monitoring, and governance improvements.
Overview of all repositories you've contributed to across your timeline