Apply for QTS in England - 2. Reuse existing architecture

Date: 2022-05-16

Status

Accepted

Context

Apply for qualified teacher status in England is a monolithic Rails application and should use a similar architecture to other monoliths, like Find a lost TRN or Apply for Teacher Training.

Decision

We adopt the following ADRs wholesale and agree to follow their decisions:

From "Find a lost TRN"

• 2. Use GOV.UK PaaS
• 3. Use a Ruby on Rails monolith
• 4. Use Postgres
• 5. Use automated tooling to check for security vulnerabilities
• 6. Use Sidekiq and Redis
• 7. Use scheduled jobs with sidekiq_cron

From "Apply for Teacher Training"

• 2. Use Devise for authentication

Consequences

• We don't have to justify the same decisions
• We can still make adjustments by creating new ADRs down the line
• Knowledge transfer between teams is simpler
• Sharing code and modules is simpler