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@@ -24,7 +24,7 @@ different ways.
## Overview
The following diagram shows how Backstage might look when deployed inside a
company which uses the Tech Radar plugin, the Lighthouse plugin, the Circle CI
company which uses the Tech Radar plugin, the Lighthouse plugin, the CircleCI
plugin and the service catalog.
There are 3 main components in this architecture:
@@ -53,9 +53,9 @@ example, the Lighthouse plugin is registered with the UI on `/lighthouse`.
![The lighthouse plugin UI](../assets/architecture-overview/lighthouse-plugin.png)
The Circle CI plugin is available on `/circleci`.
The CircleCI plugin is available on `/circleci`.
![Circle CI Plugin UI](../assets/architecture-overview/circle-ci.png)
![CircleCI Plugin UI](../assets/architecture-overview/circle-ci.png)
## Plugins and plugin backends
@@ -154,29 +154,28 @@ Cross Origin Resource Sharing policies which prevent a browser page served at
[https://example.com](https://example.com) from serving resources hosted at
https://circleci.com.
![CircleCi plugin talking to proxy talking to SaaS Circle CI](../assets/architecture-overview/circle-ci-plugin-architecture.png)
![CircleCI plugin talking to proxy talking to SaaS Circle CI](../assets/architecture-overview/circle-ci-plugin-architecture.png)
## Databases
As we have seen, both the lighthouse-audit-service and catalog-backend require a
As we have seen, both the `lighthouse-audit-service` and `catalog-backend` require a
database to work with.
At the time of writing, the lighthouse-audit-service requires PostgreSQL to work
At the time of writing, the `lighthouse-audit-service` requires PostgreSQL to work
with. The service catalog backend uses an in-memory Sqlite3 instance. This is a
development oriented setup and there are plans to support other databases in the
development-oriented setup and there are plans to support other databases in the
future.
To learn more about the future of databases and Backstage, see the following two
To learn more about the future of databases and Backstage, see the following
GitHub issues.
[Knex + Plugins (Multiple vs Single Database) · Issue #1598 · spotify/backstage](https://github.com/spotify/backstage/issues/1598)
[Update migrations to support postgres by dariddler · Pull Request #1527 · spotify/backstage](https://github.com/spotify/backstage/pull/1527#discussion_r450374145)
* [Knex + Plugins (Multiple vs Single Database) · Issue #1598 · spotify/backstage](https://github.com/spotify/backstage/issues/1598)
* [Update migrations to support postgres by dariddler · Pull Request #1527 · spotify/backstage](https://github.com/spotify/backstage/pull/1527#discussion_r450374145)
## Containerization
The example Backstage architecture shown above would Dockerize into three
separate docker images.
separate Docker images.
1. The frontend container
2. The backend container