– There’s an open source version of it along with a hosted SAAS app

– Motivation for using Ruby on Rails and updating from v4 to v6 over time

– Using Action Mailer and Delayed Job to send and receive emails

– A few other gems being used in the project

– 86 models in the core app and 275 extra for a specific Scout site (~70k LOC too)

– How billing is handled for the hosted SAAS app (it’s through invoices)

– Handling integrations by exporting data

– It’s a multi-repo monolithic application, what the “core” and “wagon” are

– There’s mostly server rendered templates with a bit of JS on the front-end

– Full text search is handled with the Thinking Sphinx gem

– There’s a separate MySQL database for each tenant

– Tech stack run down so far and how memcached is being used

– The app is set up to use Docker Compose in dev but Matthias doesn’t use it

– It’s hosted on APPUiO which is a hosted version of OpenShift

– We’re all YAML engineers, configuring Kubernetes and DB migrations

– Kustomize is being used instead of Helm for templating YAML files

– The Kubernetes related code is in its own git repo

– From developing a feature locally to pushing it to production

– Resource limits are defined in the Kubernetes config files

– Backing up the database with daily Kubernetes cron jobs

– Developers are treated like grown ups when it comes to customer data

– Handling logging and alerting with Prometheus, Grafana and Kubernetes

– Handling DNS with DNSimple and SSL certificates with Let’s Encrypt

– Best tips? Start with a specific thing instead of making a generic thing

– Check out https://hitobito.com/ and their GitHub account, Matthias is also on GitHub, Twitter and he has a site at http://kronn.de/, also Puzzle is the company he works for