Spree (when using Spree Starter template) comes with a Dockerfile that can be used to build a Docker image of your application. You can find the Dockerfile in the Dockerfile file in the root of the project or in the Spree Starter repository. This Dockerfile is pre-configured to run Spree with PostgreSQL database and Redis 7.0+ (or Valkey). That’s the only external dependency you need to have installed on your machine to be able to run Spree. You can later use that image to run your application in a containerized environment eg. AWS ECS, AWS Fargate, Azure Container Instances, etc.

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Building the Docker image

docker build -t spree .

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Running the Docker container

docker run -p 3000:3000 -e SECRET_KEY_BASE=... -e DATABASE_URL=... -e REDIS_URL=... spree
You will need to supply the following environment variables to run the container:
VariableDescriptionExample
DATABASE_URLDatabase URL, this could be your AWS RDS instance or any other PostgreSQL instancepostgres://user:pass@localhost:5432/spree
REDIS_URLRedis/Valkey URL, used for background jobs processing,this could be your AWS ElastiCache instance or any other Redis/Valkey instanceredis://localhost:6379/0
SECRET_KEY_BASEYou can generate this by running bin/rails secret2fad5c0b79d25e4765d3018d8c740f8c3a665f0e5c...
This is the bare minimum you need to run Spree Starter. Learn more about environment variables.