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Clarify some parts of the document, add extra resources link. Signed-off-by: Flavio Castelli <fcastelli@suse.com>
116 lines
4.5 KiB
Markdown
116 lines
4.5 KiB
Markdown
<!--[metadata]>
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+++
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title = "Installation on openSUSE and SUSE Linux Enterprise"
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description = "Installation instructions for Docker on openSUSE and on SUSE Linux Enterprise."
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keywords = ["openSUSE, SUSE Linux Enterprise, SUSE, SLE, docker, documentation, installation"]
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[menu.main]
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parent = "smn_linux"
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+++
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<![end-metadata]-->
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# openSUSE and SUSE Linux Enterprise
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This page provides instructions for installing and configuring the lastest
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Docker Engine software on openSUSE and SUSE systems.
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>**Note:** You can also find bleeding edge Docker versions inside of the repositories maintained by the [Virtualization:containers project](https://build.opensuse.org/project/show/Virtualization:containers) on the [Open Build Service](https://build.opensuse.org/). This project delivers also other packages that are related with the Docker ecosystem (for example, Docker Compose).
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## Prerequisites
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You must be running a 64 bit architecture.
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## openSUSE
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Docker is part of the official openSUSE repositories starting from 13.2. No
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additional repository is required on your system.
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## SUSE Linux Enterprise
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Docker is officially supported on SUSE Linux Enterprise 12 and later. You can find the latest supported Docker packages inside the `Container` module. To enable this module, do the following:
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1. Start YaST, and select *Software > Software Repositories*.
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2. Click *Add* to open the add-on dialog.
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3. Select *Extensions and Module from Registration Server* and click *Next*.
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4. From the list of available extensions and modules, select *Container Module* and click *Next*.
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The containers module and its repositories are added to your system.
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5. If you use Subscription Management Tool, update the list of repositories at the SMT server.
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Otherwise execute the following command:
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$ sudo SUSEConnect -p sle-module-containers/12/x86_64 -r ''
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>**Note:** currently the `-r ''` flag is required to avoid a known limitation of `SUSEConnect`.
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The [Virtualization:containers project](https://build.opensuse.org/project/show/Virtualization:containers)
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on the [Open Build Service](https://build.opensuse.org/) contains also bleeding
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edge Docker packages for SUSE Linux Enterprise. However these packages are
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**not supported** by SUSE.
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### Install Docker
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1. Install the Docker package:
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$ sudo zypper in docker
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2. Start the Docker daemon.
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$ sudo systemctl start docker
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3. Test the Docker installation.
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$ sudo docker run hello-world
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## Configure Docker boot options
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You can use these steps on openSUSE or SUSE Linux Enterprise. To start the `docker daemon` at boot, set the following:
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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, must be part of this group to interact with the
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Docker daemon. You can add users with this command syntax:
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sudo /usr/sbin/usermod -a -G docker <username>
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Once you add a user, make sure they relog to pick up these new permissions.
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## Enable external network access
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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. To do this, use YaST.
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For openSUSE Tumbleweed and later, browse to the **System -> Network Settings -> Routing** menu. For SUSE Linux Enterprise 12 and previous openSUSE versions, browse to **Network Devices -> Network Settings -> Routing** menu (f) and check the *Enable IPv4 Forwarding* box.
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When networking is handled by the Network Manager, instead of YaST you must edit
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the `/etc/sysconfig/SuSEfirewall2` file needs by hand to ensure the `FW_ROUTE`
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flag is set to `yes` like so:
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FW_ROUTE="yes"
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## Custom daemon options
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If you need to add an HTTP Proxy, set a different directory or partition for the
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Docker runtime files, or make other customizations, read the systemd article to
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learn how to [customize your systemd Docker daemon options](/articles/systemd/).
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## Uninstallation
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To uninstall the Docker package:
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$ sudo zypper rm docker
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The above command does not remove images, containers, volumes, or user created
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configuration files on your host. If you wish to delete all images, containers,
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and volumes run the following command:
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$ rm -rf /var/lib/docker
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You must delete the user created configuration files manually.
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## Where to go from here
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You can find more details about Docker on openSUSE or SUSE Linux Enterprise in
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the [Docker quick start guide](https://www.suse.com/documentation/sles-12/dockerquick/data/dockerquick.
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html) on the SUSE website. The document targets SUSE Linux Enterprise, but its contents apply also to openSUSE.
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Continue to the [User Guide](/userguide/).
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