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Rancher Prime is not available to run on Docker Whether 2.9 works on Docker 25 would require feedback from someone who tried this configuration

also FYI "Docker installs are not supported in production environments" - see red Danger note at top of https://ranchermanager.docs.rancher.com/getting-started/installation-and-upgrade/other-installation-methods/rancher-on-a-single-node-with-docker