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Platform Hub – the software powering the Application Container Platform Hub at the UK Home Office

Wiki pages

Look at these confluence pages ACP Platform Hub.

Running the app

Prerequisites

Follow these confluence pages for setting the environments for:

How To

Run the below:

docker compose up -d

Visit http://host.docker.internal:3000/ to use the app.

Enabling All Feature

To try of the roles in the platform hub:

  • admin
  • limited_admin

Admin have access to the feature flag page, which allows them to determine what features are available for use in the app.

  • This feature is required to test all feature in the app on the frontend.

Run the following in the database (platform-hub-db) to get the all the features in the app: Access database:

psql -U $POSTGRES_USER -d $POSTGRES_DB

For admin users:

UPDATE users SET role = 'admin';

For limited_admin, try:

UPDATE users SET role = 'limited_admin';

NOTE: As of April 2nd 2024:

  • This is a not an ideal since the role information is not documented.
  • I don't know if there is better way to do this.
  • However, the above works for providing the full range of features to test, so it has some use.

General Architecture

platform-hub-web

README

Source code for the web app for users of the PaaS.

  • Uses AngularJS 1.5 as the main framework
  • Runs fully client side (served as static assets)
  • Talks to the backend API via /api calls in the browser
  • A local development and build stack is used for easy development, testing and building of the static assets

platform-hub-auth-proxy

README

keycloak-proxy sits in front of the API server and handles authentication using Keycloak.

All /api requests go through this and keycloak-proxy takes care of proxying upstream to the API server when authenticated (or whitelisted).

The folder in this repo only provides scripts to manage a local keycloak-proxy (in a container), not for production environments.

platform-hub-api

README

Source code for the backend API server – handling most of the business logic and persistence for the hub, and communicating with other backend and external services.

  • Provides a mainly JSON based API
  • Uses Ruby on Rails 5.0 (in API-only mode)
  • Authentication credentials are expected to be provided by the keycloak-proxy (where needed)
  • Handles all the authorisation business logic

PostgreSQL

… is used as the persistence store.

Drone build

See the pipeline for all the steps involved in the various build pipelines.

Versioning and release process

All services/components provided by this repo are currently versioned together using the same version identifier on every release, determined by Git tags and corresponding Docker image tags.

Creating and pushing a Git tag in this repo will trigger a drone pipeline that builds Docker images tagged with the same tag value, and pushes them to the relevant Quay.io repositories.

The general process to prepare a new release of Docker images:

  • Switch to / pull the latest master branch (ensuring this has previously built successfully)
  • Find the latest version using git tag
  • Tag a new incremental version (either major, minor or patch)
    • e.g. git tag -a v0.5.1 -m "v0.5.1"
  • Push tags using git push --tags

To deploy the acp-ops instance:

$ export DRONE_SERVER=https://drone-gh.acp.homeoffice.gov.uk
$ export DRONE_TOKEN=xxxxxxxxxxx
$ drone build promote UKHomeOffice/kube-platform-hub <build-no> acp-ops