148 lines
4.8 KiB
Go
148 lines
4.8 KiB
Go
## Install Docker CE on Raspberry Pi SoC
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> WARNING: DO NOT install Docker with apt directly without configuring apt source.
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### OS Requirement
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Docker CE supports not only `x86_64` architecture computers, but also `ARM` ones. In this section, we will take Raspberry Pi SoC as an example to explain how to install Docker CE on `ARM` computers.
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Docker CE supports the following [Raspbian](https://www.raspberrypi.org/downloads/raspbian/) versions.
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* Raspbian Stretch
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*NOTE:* `Raspbian` is the top OS on Raspberry Pi recommended by [Raspberry Pi Foundation](https://www.raspberrypi.org/), which is the development and maintenance organization for Raspberry Pi. Raspbian is based on `Debian`.
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### Install with apt
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Since the apt source uses HTTPS to make sure that the software is not modified maliciously during download, we have to add the apt source via HTTPS as well as the CA certificate.
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```bash
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$ sudo apt-get update
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$ sudo apt-get install \
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apt-transport-https \
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ca-certificates \
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curl \
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gnupg2 \
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lsb-release \
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software-properties-common
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```
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Due to the network issues in China mainland, it is highly recommended for Chinese users to use Chinese sources. Please refer to the official sources in the comments(they are replaced by a Chinese source).
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To verify the validity of the package downloaded, we have to add the GPG key for the package source.
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```bash
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$ curl -fsSL https://mirrors.ustc.edu.cn/docker-ce/linux/raspbian/gpg | sudo apt-key add -
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# Official source
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# $ curl -fsSL https://download.docker.com/linux/raspbian/gpg | sudo apt-key add -
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```
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After that, we need to add the Docker CE source to `source.list`:
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```bash
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$ sudo add-apt-repository \
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"deb [arch=armhf] https://mirrors.ustc.edu.cn/docker-ce/linux/raspbian \
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$(lsb_release -cs) \
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stable"
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# Official Source
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# $ sudo add-apt-repository \
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# "deb [arch=armhf] https://download.docker.com/linux/raspbian \
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# $(lsb_release -cs) \
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# stable"
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```
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> The above commands will add the APT source for the stable version of Docker CE. If you need the `test` or `nightly` source, please replace with them to meet your own needs.
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#### Install Docker CE
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Update apt cache and install `docker-ce`.
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```bash
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$ sudo apt-get update
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$ sudo apt-get install docker-ce
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```
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### Install with Automatic Scripts
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To simplify the installation process during test or development, Docker official provides a convenient installation script, you can install docker on Raspbian with the following script:
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```bash
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$ curl -fsSL get.docker.com -o get-docker.sh
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$ sudo sh get-docker.sh --mirror Aliyun
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```
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After execution, the script will have everything prepared, and have installed the stable version on your OS.
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### Start Docker CE
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```bash
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$ sudo systemctl enable docker
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$ sudo systemctl start docker
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```
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### Add Docker Usergroups
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Command `docker` uses [Unix socket](https://en.wikipedia.org/wiki/Unix_domain_socket) to communicate with Docker engine by default. Only users of `root` and `docker` groups can communicate with Unix socket of the Docker engine.`root` user is not directly used on Linux systems in general for security. Therefore, it is better to add users who need to use `docker` to the `docker` user group.
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create `docker` group:
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```bash
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$ sudo groupadd docker
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```
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add current user to `docker` group:
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```bash
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$ sudo usermod -aG docker $USER
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```
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Exit current terminal and relogin to test.
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### Verify the Installation
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```bash
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$ docker run arm32v7/hello-world
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Unable to find image 'hello-world:latest' locally
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latest: Pulling from library/hello-world
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d1725b59e92d: Pull complete
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Digest: sha256:0add3ace90ecb4adbf7777e9aacf18357296e799f81cabc9fde470971e499788
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Status: Downloaded newer image for hello-world:latest
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Hello from Docker!
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This message shows that your installation appears to be working correctly.
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To generate this message, Docker took the following steps:
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1. The Docker client contacted the Docker daemon.
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2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
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(amd64)
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3. The Docker daemon created a new container from that image which runs the
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executable that produces the output you are currently reading.
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4. The Docker daemon streamed that output to the Docker client, which sent it
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to your terminal.
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To try something more ambitious, you can run an Ubuntu container with:
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$ docker run -it ubuntu bash
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Share images, automate workflows, and more with a free Docker ID:
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https://hub.docker.com/
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For more examples and ideas, visit:
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https://docs.docker.com/get-started/
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```
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If it shows the above message, it means your installation is successful.
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*NOTE:* ARM platform cannot use `x86` mirrors, to view a list of the mirrors supported on Raspbian, please visit [arm32v7](https://hub.docker.com/u/arm32v7/).
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### Registry Mirror(In China)
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If you pull docker images very slowly, then you can configure [Registry Mirror](mirror.md).
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