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Merritt Runtime Platforms

Current Platforms

  • EC2
    • EC2
      • General Purpose EC2
        • Inventory (Tomcat)
        • UI (Puma)
      • Nework Optimized EC2
        • Ingest (Tomcat)
        • Audit (Tomcat)
      • IO Optimized EC2
        • Storage (Tomcat)
          • Would this beneift from the Network optimized instead?
        • Access (Tomcat)
        • Replication (Tomcat)
    • EC2 Misc
      • LDAP
      • Zookeeper
      • Batch Server
        • Nuxeo Process (formerly part of UI)
  • RDS
    • MySQL
  • Lambda
    • Admin Tool
    • Collection Tool

Future Platforms

Assumptions based on May 2024 conversation with IAS

  • For containers, prefer Fargate. It may be more costly than EC2, but it requires less administrative support.

  • If a specialized instance type is needed, use ECS. This would then require us to manage the underlying EC2 instances. These should be re-created as needed via Auto Scaling Groups.

  • ECS

    • Auto Scaling Group - Network Optmized
      • Ingest (ZFS needed)
      • Audit
    • Auto Scaling Group - IO optimized
      • Storage (ZFS needed)
      • Access Assembly
      • Replication

  • Fargate

    • Zookeeper (maybe, but hostnames need to be known)
    • LDAP
    • UI - Rails
    • Inventory Tomcat

  • EC2 (not a containerized service)

    • Batch server
    • Jenkins

  • RDS

    • MySQL

  • Lambda

    • Admin Tool
    • Collection Tool

  • Lambda + API Gateway candidates

    • Microservice functionality that could be extracted from a primary microservice container
    • Merritt API (currently part of UI)
    • Access File Requests and Assembly Queuing
    • Inventory - Local ID Service