Available configuration options for the Docker CLI see: <https://docs.docker.com/reference/cli/docker/#docker-cli-configuration-file-configjson-properties> These settings are written to the world-readable Nix store, so avoid putting registry credentials or proxy passwords here. For registry credentials, Docker's credsStore or credHelpers settings can keep them in a credential helper instead; see Docker credential stores. Because Home Manager links config.json read-only, docker login still reports an error when it adds a registry to that file, even after the credential helper has stored the credential. You can store the credential with the helper's own store command instead.

{ }

{ "proxies" = { "default" = { "httpProxy" = "http://proxy.example.org:3128"; "httpsProxy" = "http://proxy.example.org:3128"; "noProxy" = "localhost"; }; };