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Weka stack

Weka web application stack

The Weka App supercedes the original TUI (Toshi UI) application with a similar but modernised architecture. It's used primarily by the CWG team and NSHM scientists involved in running and evaluating experimental results from the NSHM CWG Scientific Process.

Custom components

These components are developed and supported by the Compute Working Group team.

The AWS stacks (AWS API Gateway and below) are managed via the serverless configurations of each service. Usually there is a PROD and TEST stage deployment, and sometimes a DEV deployment too.

Cloud configuration

These components are configured so that the stack functions correctly. As they're rarely touched they are maintained manually, via the AWS Console unless stated otherwise.

  • Elastic Search API is an AWS Kibana/Elastic managed service. Objects stored in ToshiAPI are indexed here, and used via the Weka Search UI.

  • SSL certificates are issued via AWS Certificate Manager (ACM) for the Domain hosts used by NSHM (see us-east-1 region).

  • AWS Cloudfront provides a global content delivery service and maps SSL domain host onto the internal services names via cloudfront host names.

  • GNS Internal IT manage the DNS zone entriesfor NSHM SSL certificates, hostnames, and verifcations.

  • Google Analytics (not configured)

Lower levels of the AWS stack (AWS API Gateway and below) are generally managed via the serverless configurations of each service.

Stack diagram

graph TD
    classDef nshm stroke:lightgreen, stroke-width:3px
    classDef nshm-deprecated stroke:red, stroke-width:1px

    classDef AWS stroke:orange, stroke-width:3px
    classDef SVC stroke:powderblue, stroke-width:3px
    classDef note stroke:black, stroke-width:1px

    W["Weka web app
        weka.gns.cri.nz"]:::nshm
    NB3["{API_HOST}
        /weka-app-api/graphql"]:::note 

    subgraph GW["Weka Application Gateway layer"]

        SSL["SSL: {API_HOST}"]:::AWS

    CF["DNS: {API_HOST} CNAME {Cloudfont HOST}"]:::AWS

        CF -.-|/weka-app-api| C

        C["AWS API Gateway:
        nshm-weka-apigw"]:::AWS

        F2["nshm-weka-apigw"]:::nshm

        C -->|path: /weka-app-api/graphql| F2

    end

    SSL --- CF

    W -.-|graphql query| NB3 -.-> SSL

    subgraph SUP["graphql microservices layer"]
        direction TB

        ES_API[elastic-search-api]:::AWS
        S-API[nshm-model-graphql-api]:::nshm
        T-API[nshm-toshi-api]:::nshm

    end

    F2 -.-> SUP