Yum repo for CentOS 8

General
1

Hi,

As CentOS 8 is released, please provide the yum repo for docker ce for CentOS 8.

thanks.

Thomas Stephen Lee

2
3

Hello Thomas
Official docker installation in some problem
Since the official version of the Docker CE supporting RHEL 8 / CentOS 8 is not ready yet, the docker repository currently contains Docker CE for RHEL 7 / CentOS 7 which comes with some installation caveats. If we try to install docker-ce, the system will notify us of a broken dependency problem generated when trying to install the latest version of the software.
Example:
Error:
Problem: package docker-ce-3:19.03.2-3.el7.x86_64 requires containerd.io >= 1.2.2-3, but none of the providers can be installed

  • cannot install the best candidate for the job
  • package containerd.io-1.2.2-3.3.el7.x86_64 is excluded
  • package containerd.io-1.2.2-3.el7.x86_64 is excluded
  • package containerd.io-1.2.4-3.1.el7.x86_64 is excluded
  • package containerd.io-1.2.5-3.1.el7.x86_64 is excluded
  • package containerd.io-1.2.6-3.3.el7.x86_64 is excluded
    (try to add ‘–skip-broken’ to skip uninstallable packages or ‘–nobest’ to use no

So At the time it’s give you a some dependencies problem
But you can try to do this.
https://linuxconfig.org/how-to-install-docker-in-rhel-8

4

Thanks for the replies.

We are still evaluating CentOS 8.

We will start upgrading after some more time.

We are waiting for some other packages to arrive :slightly_smiling_face:

We will wait for the official version to be released.

thanks.

Thomas Stephen Lee

5

You didn’t actually read the link. Please read the link. The is excluded error is caused by a bug in libsolv.

6

Steps that worked on Test machines are give below.

#For RHEL 8 and CentOS 8

$ dnf config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo

#For RHEL 8

$ dnf install container-selinux

$ dnf --disablerepo=rhel-8-for-x86_64-appstream-rpms install docker-ce

#For CentOS 8

$ dnf install container-selinux

$ dnf --disablerepo=AppStream install docker-ce

thanks.

Thomas Stephen Lee

7

Out of curiosity is getting “403 Forbidden” on all Linux repos an unfortunate accident or a decision that we were not yet informed about? Anything under linux is not 403, but somehow win and mac folders are accessible.

403 Forbidden

Code: AccessDenied
Message: Access Denied
RequestId: ...
HostId: ...

An Error Occurred While Attempting to Retrieve a Custom Error Document

Code: NoSuchKey
Message: The specified key does not exist.
Key: error.html
8

We are behind a firewall/proxy so we had issues with running images in RHEL 8 and CentOS 8 test machines in the internal network.
Looks like nftables support is needed.

9

I ran into this issue as well and I came up with a better solution by updating the docker.repo file to include the module_hotfixes=1 option. This works around the modularity issue by enabling all rpms included in the repo instead of excluding them. A better explanation can be found here.

The dnf.conf manpage states the following regarding the module_hotfixes option:

module_hotfixes
  boolean

  Set  this  to  True  to disable module RPM filtering and make all RPMs
  from the repository available. The default is False.  This allows user
  to create a repository with cherry-picked hotfixes that are included
  in a package set on  a modular system.
1 Like
10

Thanks.

Unrelated but,

Works for MariaDB official repo too.

https://downloads.mariadb.org/mariadb/repositories

11

Any plans to support with 20.03 release of Docker CE ?