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Out of box, the 'sudo' command on openSUSE does not work similarly to other distros. In this case, the path to usermod should be explicitly given, since /usr/sbin, where usermod is located, is not on the sudoing user's PATH. The other sudo commands here should be fine.
75 lines
2.7 KiB
Markdown
75 lines
2.7 KiB
Markdown
page_title: Installation on openSUSE
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page_description: Installation instructions for Docker on openSUSE.
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page_keywords: openSUSE, virtualbox, docker, documentation, installation
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# openSUSE
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Docker is available in **openSUSE 12.3 and later**. Please note that due
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to the current Docker limitations Docker is able to run only on the **64
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bit** architecture.
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## Installation
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The `docker` package from the [Virtualization
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project](https://build.opensuse.org/project/show/Virtualization) on
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[OBS](https://build.opensuse.org/) provides Docker on openSUSE.
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To proceed with Docker installation please add the right Virtualization
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repository.
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# openSUSE 12.3
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$ sudo zypper ar -f http://download.opensuse.org/repositories/Virtualization/openSUSE_12.3/ Virtualization
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$ sudo rpm --import http://download.opensuse.org/repositories/Virtualization/openSUSE_12.3/repodata/repomd.xml.key
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# openSUSE 13.1
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$ sudo zypper ar -f http://download.opensuse.org/repositories/Virtualization/openSUSE_13.1/ Virtualization
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$ sudo rpm --import http://download.opensuse.org/repositories/Virtualization/openSUSE_13.1/repodata/repomd.xml.key
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Install the Docker package.
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$ sudo zypper in docker
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It's also possible to install Docker using openSUSE's1-click install.
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Just visit [this](http://software.opensuse.org/package/docker) page,
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select your openSUSE version and click on the installation link. This
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will add the right repository to your system and it will also install
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the docker package.
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Now that it's installed, let's start the Docker daemon.
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$ sudo systemctl start docker
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If we want Docker to start at boot, we should also:
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$ sudo systemctl enable docker
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The docker package creates a new group named docker. Users, other than
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root user, need to be part of this group in order to interact with the
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Docker daemon. You can add users with:
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$ sudo /usr/sbin/usermod -a -G docker <username>
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To verify that everything has worked as expected:
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$ sudo docker run --rm -i -t opensuse /bin/bash
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This should download and import the `opensuse` image, and then start `bash` in
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a container. To exit the container type `exit`.
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If you want your containers to be able to access the external network you must
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enable the `net.ipv4.ip_forward` rule.
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This can be done using YaST by browsing to the
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`Network Devices -> Network Settings -> Routing` menu and ensuring that the
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`Enable IPv4 Forwarding` box is checked.
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This option cannot be changed when networking is handled by the Network Manager.
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In such cases the `/etc/sysconfig/SuSEfirewall2` file needs to be edited by
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hand to ensure the `FW_ROUTE` flag is set to `yes` like so:
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FW_ROUTE="yes"
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**Done!**
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Continue with the [User Guide](/userguide/).
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