GitLab CI: How to Use a Dockerfile from Remote Repository

🧩 The Problem You have multiple (group) projects (frontend, backend, etc.) and you want: A single Dockerfile in a central repo ( cicd-template/frontend/gitlab-template.yml ) All group app repos reuse it No duplication, no drift, better control You try: include : - project : " kelvyn-labs/cicd-template" ref : master file : " /frontend/gitlab-ci.yml" But during the pipeline: docker build -f frontend/Dockerfile . 👉 ❌ It fails — file not found 🧠 Why This Happens In GitLab: include:project only im