B2B software SaaS start-up — Lyon 6 weeks

GitOps CI/CD pipeline for a SaaS start-up

Setting up a full GitOps workflow for a product team of 8 developers: from commit to production in under 10 minutes, with no human intervention.

Context

A fast-growing B2B SaaS start-up was deploying manually to a Kubernetes cluster: SSH, kubectl apply, manual restart. Anxiety-inducing deployments, done late at night, sometimes forgotten. No reliable staging environment.

The team wanted to ship faster without hiring a dedicated SRE.

Work delivered

ArgoCD installed on the production cluster
Repos restructured following GitOps patterns (app-repo / config-repo separation)
Helm + Kustomize templating for environment overlays
GitHub Actions pipeline: build, tests, security scan, image publication, automatic tag bump
Ephemeral staging environment per PR
Progressive rollout strategies (canary) with Argo Rollouts
Team documentation and training on the new workflow

Outcome

Mean time from commit to production: 8 minutes (vs ~2 days before)
Daily deployments during work hours, stress-free
One-click rollbacks, tested on a real incident in the first week
100% of infrastructure changes tracked in Git (full audit trail)

Stack

Kubernetes · ArgoCD · Argo Rollouts · Helm · Kustomize · GitHub Actions · Trivy · Prometheus