Docker install failing on RedHat 7.x

[geerlingguy]

Docker install failing on RedHat 7.x

[sverchdotgov]

Based on https://stackoverflow.com/a/45274492, I found that this resolved the issue (so the installation can install the container-selinux package). The second task was because I'm running on AWS:

- name: Enable RHEL extras repository
  shell: yum-config-manager --enable rhel-7-server-extras-rpms

- name: Enable AWS RHEL extras repository
  shell: yum-config-manager --enable rhui-REGION-rhel-server-extras

@geerlingguy since the build on RHEL doesn't really work without this, do you think that setup would belong in https://github.com/geerlingguy/ansible-role-docker/blob/master/tasks/setup-RedHat.yml?

[allir]

This is working in the CentOS tests, so I'm wondering if there's some simpler way of resolving it without enabling an entire extra repo?

Installing docker-ce on RedHat has a dependency to the "container-selinux" package which is not provided in the server-rpms repo, but is in the extras repo.

It's possible to use the "--enablerepo" option in yum to only enable the extras repo for a single command.

yum --enablerepo rhel-7-server-extras-rpms container-selinux

The yum ansible module provides this as well. https://docs.ansible.com/ansible/latest/modules/yum_module.html
Example:

- name: install container-selinux dependency
  yum:
    name: container-selinux
    enablerepo: rhel-7-server-extras-rpms
    state: present
  when: ansible_distribution == 'RedHat' and ansible_distribution_major_version == '7'

This would in turn install the package without globally enabling the repo.

Another way would be to install it direcly from rpm via http://mirror.centos.org/centos/7/extras/x86_64/Packages/

[geerlingguy]

AWS is a bit different; they have their own oddities with RHEL-based Amazon Linux (unless you're using a RHEL distro on AWS?

This is working in the CentOS tests, so I'm wondering if there's some simpler way of resolving it without enabling an entire extra repo?

[otteydw]

Ran into this same problem today. Had to put in @sverchdotgov 's workaround. But I'd love to see this added into the main repo.

[grugnog]

The RHEL official AMIs on AWS use the rhui-REGION-rhel-server-extras style repo names, rather than the rhel-7-server-extras-rpms one (I assume so they can point at a mirror that only responds to AWS requests that have a valid license).

[webyneter]

FWIW, these are the extra dependencies I had to install prior to running this role for the latter to succeeed on Amazon Linux 2 (hvm, ebs-backed):

  - name: Install Docker CE CentOS-specific dependencies
    block:
    # region https://docs.docker.com/install/linux/docker-ce/centos/#set-up-the-repository
    - name: Install yum-utils
      package:
        name: yum-utils
        state: present
    - name: Install device-mapper-persistent-data
      package:
        name: device-mapper-persistent-data
        state: present
    - name: Install lvm2
      package:
        name: lvm2
        state: present
    # endregion
    # region https://github.com/docker/for-linux/issues/299#issuecomment-390976518
    - name: yum makecache fast
      shell: yum makecache fast
    - name: Install container-selinux
      shell: yum install -y http://mirror.centos.org/centos/7/extras/x86_64/Packages/container-selinux-2.42-1.gitad8f0f7.el7.noarch.rpm
    # endregion

[lanycrost]

I think these problem should fix docker...

I have this problem don't only inside RHEL and Amazon Linux. I have this problem in another RPM based operating systems too such as Oracle Linux. I don't understand their version game, but I think he can fix it 😆

docker/for-linux#443

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This issue has been marked 'stale' due to lack of recent activity. If there is no further activity, the issue will be closed in another 30 days. Thank you for your contribution!

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[stale]

This issue has been closed due to inactivity. If you feel this is in error, please reopen the issue or file a new issue with the relevant details.

[Fixmetal]

This is still present in RHEL 7.8.