Deploy target: docker-prod (self-hosted production)
Generates a two-stage Docker build (Ruby + Nginx) and a production compose file you can run on any container host (Fly.io, Render, a VPS, Kubernetes via Kompose, etc.).
Files installed
| Source |
Destination |
Dockerfile.prod.template |
docker/Dockerfile.prod |
docker-compose.prod.yml.template |
docker-compose.prod.yml |
nginx.conf |
docker/nginx.conf |
.dockerignore |
.dockerignore (only if missing) |
Template variables
| Variable |
Default |
Notes |
{{RUBY_VERSION}} |
3.3 |
Builder stage base image tag. |
{{GITHUB_USER}} |
me |
Used in the OCI label + image name. |
{{SITE_NAME}} |
site |
Image repository name suffix. |
Build & run
# Build immutable, tested image
IMAGE_TAG=$(date +%Y%m%d)-$(git rev-parse --short HEAD)
docker compose -f docker-compose.prod.yml build
docker compose -f docker-compose.prod.yml up -d
# Health check
curl -fsSL http://localhost:${PORT:-8080}/ | head -1
Documentation