Project proposal: DevOps pipeline for a todo web application with GitOps deployment

[villiamriegler]

Assignment Proposal

Title

DevOps pipeline for a todo web application with GitOps deployment

Names and KTH ID

• Harry Eriksson (guerikss@kth.se)
• Villiam Riegler (villiamr@kth.se)

Deadline

• Task 3

Category

• Project

Description

We will build a small todo web application and set up a complete DevOps pipeline around it. The application
lets users create, complete and delete todo items, which are persisted in a PostgreSQL database running as a
sidecar container next to the application.

• CI: GitHub Actions runs tests on every pull request, and builds and pushes a container image to GitHub
  Container Registry on merge to main.
• CD: After the image is pushed, a CI job updates the image tag in the Kubernetes manifests in the
  repository. Argo CD watches these manifests and deploys the new release image to the cluster.
• IaC: Terraform creates a local Kubernetes cluster (kind) and installs Argo CD into it.
• Development platform: GitHub with branch protection.
• Quality/security automation: Dependabot for dependency updates.

Relevance: The project applies the core DevOps practices from the course, continuous integration, continuous
delivery, infrastructure as code and security automation, to a working application in one integrated workflow.
Using Argo CD gives us a pull-based CD model where the cluster state is defined in the repository, and Terraform
makes the whole environment reproducible with a single command.