Many of the enterprise offerings are for subscriptions https://store.docker.com/editions/enterprise/docker-ee-server-rhel https://store.docker.com/editions/ent

Many of the enterprise offerings are for subscriptions https://store.docker.com/editions/enterprise/docker-ee-server-rhel https://store.docker.com/editions/enterprise/docker-ee-serve... https://store.docker.com/editions/enterprise/docker-ee-server-oraclelinux https://store.docker.com/editions/enterprise/docker-ee-serve... https://store.docker.com/images/esystemstech https://store.docker.com/images/esystemstech https://store.docker.com/images/gitlab-enterprise-edition https://store.docker.com/images/gitlab-enterprise-edition Some appear to be free/trial edition/subscription based, etc.. There are a couple that allow the end user to setup a subscription after trying out the free version of the software (trial edition) or a limited version of the software that allows end users to upgrade.