添加安装脚本文件

_includes/install-script.md

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+<!-- This file is included in Docker Engine - Community or EE installation docs for Linux. -->
+
+### Install using the convenience script
+
+Docker provides convenience scripts at [get.docker.com](https://get.docker.com/)
+and [test.docker.com](https://test.docker.com/) for installing edge and
+testing versions of Docker Engine - Community into development environments quickly and
+non-interactively. The source code for the scripts is in the
+[`docker-install` repository](https://github.com/docker/docker-install).
+**Using these scripts is not recommended for production
+environments**, and you should understand the potential risks before you use
+them:
+
+- The scripts require `root` or `sudo` privileges to run. Therefore,
+  you should carefully examine and audit the scripts before running them.
+- The scripts attempt to detect your Linux distribution and version and
+  configure your package management system for you. In addition, the scripts do
+  not allow you to customize any installation parameters. This may lead to an
+  unsupported configuration, either from Docker's point of view or from your own
+  organization's guidelines and standards.
+- The scripts install all dependencies and recommendations of the package
+  manager without asking for confirmation. This may install a large number of
+  packages, depending on the current configuration of your host machine.
+- The script does not provide options to specify which version of Docker to install,
+  and installs the latest version that is released in the "edge" channel.
+- Do not use the convenience script if Docker has already been installed on the
+  host machine using another mechanism.
+
+This example uses the script at [get.docker.com](https://get.docker.com/) to
+install the latest release of Docker Engine - Community on Linux. To install the latest
+testing version, use [test.docker.com](https://test.docker.com/) instead. In
+each of the commands below, replace each occurrence of `get` with `test`.
+
+> **Warning**:
+>
+Always examine scripts downloaded from the internet before
+> running them locally.
+{:.warning}
+
+```bash
+$ curl -fsSL https://get.docker.com -o get-docker.sh
+$ sudo sh get-docker.sh
+
+<output truncated>
+```
+
+If you would like to use Docker as a non-root user, you should now consider
+adding your user to the "docker" group with something like:
+
+```bash
+  sudo usermod -aG docker your-user
+```
+
+Remember to log out and back in for this to take effect!
+
+> **Warning**:
+>
+> Adding a user to the "docker" group grants them the ability to run containers
+> which can be used to obtain root privileges on the Docker host. Refer to
+> [Docker Daemon Attack Surface](/engine/security/#docker-daemon-attack-surface)
+> for more information.
+{:.warning}
+
+Docker Engine - Community is installed. It starts automatically on `DEB`-based distributions. On
+`RPM`-based distributions, you need to start it manually using the appropriate
+`systemctl` or `service` command. As the message indicates, non-root users can't
+run Docker commands by default.
+
+> **Note**:
+>
+> To install Docker without root privileges, see
+> [Run the Docker daemon as a non-root user (Rootless mode)](/engine/security/rootless/).
+>
+> Rootless mode is currently available as an experimental feature.
+
+#### Upgrade Docker after using the convenience script
+
+If you installed Docker using the convenience script, you should upgrade Docker
+using your package manager directly. There is no advantage to re-running the
+convenience script, and it can cause issues if it attempts to re-add
+repositories which have already been added to the host machine.