docs/_includes/ee-linux-install-reuse.md

{% assign section = include.section %}

{% comment %}

Include a chunk of this file, using variables already set in the file where you want to reuse the chunk.

Usage: {% include ee-linux-install-reuse.md section="ee-install-intro" %}

{% endcomment %}

{% if section == "ee-install-intro" %}

There are two ways to install and upgrade Docker Enterprise Edition (Docker EE){: target="blank" class="" } on {{ linux-dist-long }}:

• YUM repository: Set up a Docker repository and install Docker EE from it. This is the recommended approach because installation and upgrades are managed with YUM and easier to do.

• RPM package: Download the {{ package-format }} package, install it manually, and manage upgrades manually. This is useful when installing Docker EE on air-gapped systems with no access to the internet.

{% if linux-dist == "rhel" or linux-dist == "oraclelinux" %} Docker Community Edition (Docker CE) is not supported on {{ linux-dist-long }}. {% endif %} {% if linux-dist == "centos" %} For Docker Community Edition on {{ linux-dist-cap }}, see Get Docker CE for CentOS. {% endif %}

{% elsif section == "find-ee-repo-url" %}

To install Docker EE, you will need the URL of the Docker EE repository associated with your trial or subscription:

1. Go to https://hub.docker.com/my-content{: target="blank" class="" }. All of your subscriptions and trials are listed.
2. Click the Setup button for Docker Enterprise Edition for {{ linux-dist-long }}.
3. Copy the URL from Copy and paste this URL to download your Edition and save it for later use.

You will use this URL in a later step to create a variable called, DOCKERURL.

{% elsif section == "using-yum-repo" %}

The advantage of using a repository from which to install Docker EE (or any software) is that it provides a certain level of automation. RPM-based distributions such as {{ linux-dist-long }}, use a tool called YUM that work with your repositories to manage dependencies and provide automatic updates.

{% elsif section == "set-up-yum-repo" %} You only need to set up the repository once, after which you can install Docker EE from the repo and repeatedly upgrade as necessary.

1. Remove existing Docker repositories from /etc/yum.repos.d/:

   $ sudo rm /etc/yum.repos.d/docker*.repo
   

2. Temporarily store the URL (that you copied above) in an environment variable. Replace <DOCKER-EE-URL> with your URL in the following command. This variable assignment does not persist when the session ends:

   $ export DOCKERURL="<DOCKER-EE-URL>"
   

3. Store the value of the variable, DOCKERURL (from the previous step), in a yum variable in /etc/yum/vars/:

   $ sudo -E sh -c 'echo "$DOCKERURL/{{ linux-dist-url-slug }}" > /etc/yum/vars/dockerurl'
   

   {% if linux-dist == "rhel" %} Also, store your OS version string in /etc/yum/vars/dockerosversion. Most users should use 7, but you can also use the more specific minor version, starting from 7.2.

   $ sudo sh -c 'echo "7" > /etc/yum/vars/dockerosversion'
   

   {% endif %}

4. Install required packages: yum-utils provides the yum-config-manager utility, and device-mapper-persistent-data and lvm2 are required by the devicemapper storage driver:

   $ sudo yum install -y yum-utils \
     device-mapper-persistent-data \
     lvm2
   

{% if linux-dist == "rhel" %} 5. Enable the extras RHEL repository. This ensures access to the container-selinux package required by docker-ee.

The repository can differ per your architecture and cloud provider, so review the options in this step before running:

**For all architectures _except_ IBM Power:**

```bash
$ sudo yum-config-manager --enable rhel-7-server-extras-rpms
```

**For IBM Power only (little endian):**

```bash
$ sudo yum-config-manager --enable extras
$ sudo subscription-manager repos --enable=rhel-7-for-power-le-extras-rpms
$ sudo yum makecache fast
$ sudo yum -y install container-selinux
```

Depending on cloud provider, you may also need to enable another repository:

**For AWS** (where `REGION` is a literal, and does _not_ represent the region your machine is running in):

```bash
$ sudo yum-config-manager --enable rhui-REGION-rhel-server-extras
```

**For Azure:**

```bash
$ sudo yum-config-manager --enable rhui-rhel-7-server-rhui-extras-rpms
```

{% endif %}

{% if linux-dist == "oraclelinux" %}

5. Enable the ol7_addons Oracle repository. This ensures access to the container-selinux package required by docker-ee.

   $ sudo yum-config-manager --enable ol7_addons
   

{% endif %}

6. Add the Docker EE stable repository:

   $ sudo -E yum-config-manager \
       --add-repo \
       "$DOCKERURL/{{ linux-dist-url-slug }}/docker-ee.repo"
   

{% elsif section == "install-using-yum-repo" %}

Note: If you need to run Docker EE 2.0, please see the following instructions:

• 18.03 - Older Docker EE Engine only release
• 17.06 - Docker Enterprise Edition 2.0 (Docker Engine, UCP, and DTR).

1. Install the latest patch release, or go to the next step to install a specific version:

   $ sudo yum -y install docker-ee docker-ee-cli containerd.io
   

   If prompted to accept the GPG key, verify that the fingerprint matches {{ gpg-fingerprint }}, and if so, accept it.

2. To install a specific version of Docker EE (recommended in production), list versions and install:

   a. List and sort the versions available in your repo. This example sorts results by version number, highest to lowest, and is truncated:

   $ sudo yum list docker-ee  --showduplicates | sort -r
   
   docker-ee.x86_64      {{ site.docker_ee_version }}.ee.2-1.el7.{{ linux-dist }}      docker-ee-stable-18.09
   

   The list returned depends on which repositories you enabled, and is specific to your version of {{ linux-dist-long }} (indicated by .el7 in this example).

   b. Install a specific version by its fully qualified package name, which is the package name (docker-ee) plus the version string (2nd column) starting at the first colon (:), up to the first hyphen, separated by a hyphen (-). For example, docker-ee-18.09.1.

   $ sudo yum -y install docker-ee-<VERSION_STRING> docker-ee-cli-<VERSION_STRING> containerd.io
   

   For example, if you want to install the 18.09 version run the following:

   sudo yum-config-manager --enable docker-ee-stable-18.09
   

   Docker is installed but not started. The docker group is created, but no users are added to the group.

3. Start Docker:

   If using devicemapper, ensure it is properly configured before starting Docker, per the storage guide{: target="blank" class="" }.

   $ sudo systemctl start docker
   

4. Verify that Docker EE is installed correctly by running the hello-world image. This command downloads a test image, runs it in a container, prints an informational message, and exits:

   $ sudo docker run hello-world
   

   Docker EE is installed and running. Use sudo to run Docker commands. See Linux postinstall{: target="blank" class="" } to allow non-privileged users to run Docker commands.

{% elsif section == "upgrade-using-yum-repo" %}

1. Add the new repository.

2. Follow the installation instructions and install a new version.

{% elsif section == "package-installation" %}

To manually install Docker EE, download the .{{ package-format | downcase }} file for your release. You need to download a new file each time you want to upgrade Docker EE.

{% elsif section == "install-using-yum-package" %}

{% if linux-dist == "rhel" %}

1. Enable the extras RHEL repository. This ensures access to the container-selinux package which is required by docker-ee:

   $ sudo yum-config-manager --enable rhel-7-server-extras-rpms
   

   Alternately, obtain that package manually from Red Hat. There is no way to publicly browse this repository. {% endif %}

{% if linux-dist == "centos" %}

1. Go to the Docker EE repository URL associated with your trial or subscription in your browser. Go to {{ linux-dist-url-slug }}/7/x86_64/stable-<VERSION>/Packages and download the .{{ package-format | downcase }} file for the Docker version you want to install. {% endif %}

{% if linux-dist == "rhel" or linux-dist == "oraclelinux" %}

1. Go to the Docker EE repository URL associated with your trial or subscription in your browser. Go to {{ linux-dist-url-slug }}/. Choose your {{ linux-dist-long }} version, architecture, and Docker version. Download the .{{ package-format | downcase }} file from the Packages directory.

{% if linux-dist == "rhel" %} > If you have trouble with selinux using the packages under the 7 directory, > try choosing the version-specific directory instead, such as 7.3. {% endif %} {% endif %}

2. Install Docker EE, changing the path below to the path where you downloaded the Docker package.

   $ sudo yum install /path/to/package.rpm
   

   Docker is installed but not started. The docker group is created, but no users are added to the group.

3. Start Docker:

   If using devicemapper, ensure it is properly configured before starting Docker, per the storage guide{: target="blank" class="" }.

   $ sudo systemctl start docker
   

4. Verify that Docker EE is installed correctly by running the hello-world image. This command downloads a test image, runs it in a container, prints an informational message, and exits:

   $ sudo docker run hello-world
   

   Docker EE is installed and running. Use sudo to run Docker commands. See Linux postinstall{: target="blank" class="" } to allow non-privileged users to run Docker commands.

{% elsif section == "upgrade-using-yum-package" %}

1. Download the newer package file.

2. Repeat the installation procedure, using yum -y upgrade instead of yum -y install, and point to the new file.

{% elsif section == "yum-uninstall" %}

1. Uninstall the Docker EE package:

   $ sudo yum -y remove docker-ee
   

2. Delete all images, containers, and volumes (because these are not automatically removed from your host):

   $ sudo rm -rf /var/lib/docker
   

3. Delete other Docker related resources:

   $ sudo rm -rf /run/docker
   $ sudo rm -rf /var/run/docker
   $ sudo rm -rf /etc/docker
   

4. If desired, remove the devicemapper thin pool and reformat the block devices that were part of it.

You must delete any edited configuration files manually.

{% elsif section == "linux-install-nextsteps" %}

• Continue to Post-installation steps for Linux{: target="blank" class="" }

• Continue with user guides on Universal Control Plane (UCP){: target="blank" class="" } and Docker Trusted Registry (DTR){: target="blank" class="" }

{% endif %}