Capstone
Cloud & DevOps
Cloud-Native CI/CD Platform
GitOps pipeline with Kubernetes, Helm and progressive delivery
- Kubernetes
- Docker
- Helm
- Argo CD
- +2
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Cloud & DevOps · Capstone
Custom Kubernetes Operator in Go
A CRD and controller that create, back up and upgrade a database
5-6 weeks build
Overview
Teaching Kubernetes to run a database the way an administrator would. Kubebuilder scaffolds a PostgresInstance custom resource and a Go controller whose reconcile loop creates the StatefulSet, service and credentials, reports status, takes scheduled backups and handles version upgrades. Deleting the resource cleans up through a finaliser. Tests run against envtest, and the demo runs on a local kind cluster.
What makes it stand up
- 01Custom resource with a validated spec and a status subresource
- 02Idempotent reconcile loop that converges on the desired state
- 03Scheduled backups and version upgrades handled by the controller
- 04Finalisers so deleting the resource cleans up what it created
- 05Controller tests against envtest, and a demo on kind
Module breakdown
- 01
API design
CRD types, validation markers and status conditions.
- 02
Reconciler
Creates and updates the StatefulSet, service and secret.
- 03
Lifecycle
Backups as Jobs, upgrades and finaliser-driven cleanup.
- 04
Testing
envtest suite covering create, update and delete paths.
- 05
Packaging
Controller image, RBAC manifests and deployment to kind.
After this, you will be able to
- Explain the operator pattern and the level-triggered reconcile loop
- Defend your CRD design and how status is reported
- Demo applying one YAML file and a working database appearing
Technology stack
- Go
- Kubernetes
- Kubebuilder
- PostgreSQL
- Docker
- Level
- Capstone
- Domain
- Cloud & DevOps
- Build time
- 5-6 weeks
- Difficulty
You receive
- Complete, commented source code
- 60-90 page project report (IEEE format)
- Editable presentation deck
- Architecture, ER and UML diagrams
- Local setup and deployment guide
- Sample dataset or seed data
- Viva question bank with answers
- One 45-minute walkthrough call
- 30 days of doubt-clearing support