Prepare your project
Keep dependencies and build configuration in the repository. Do not commit passwords, tokens or database files. Decide which persistent data belongs on a volume and which files belong in S3.
Choose how to build
Use the platform build flow for a standard project or a Dockerfile for a custom build. Add environment variables and startup settings. Docker Compose describes multiple services that run together.
Ship and verify
Changes on the selected branch trigger deployment. Follow the build result and readiness check in the dashboard. Keep persistent data outside the container image so it survives deployments.