RHEL 8 Support about ansible-role-java HOT 3 CLOSED

I'm not using RHEL 8 at the moment, but I have had possibly related issues on CentOS 7.6 with Python 3.6, and would like to get RHEL 8 working soon.

Beyond the specific error from with the dnf module above, you may be running into the difference between Yum 3 and Yum 4 - the latter is based on the new DNF package manager, which replaces the original Yum 3. Yum 4 and DNF are in preview on CentOS 7.6 and the default in RHEL 8.

• this role uses the package module, which maps to dnf module on RHEL 8 (possibly to the yum module with dnf backend), and to yum module on RHEL 7.x

There is an interaction with Python 3 here - I found that, although Ansible runs fine on Python 3 generally, the Ansible yum module actually requires Yum 4. Since this is in preview on CentOS 7.6 I ended up making Ansible run on Python 2.7 so that I could use Yum 3.

For RHEL 8, I think you would need to use Yum 4 or DNF. For Python 3 on CentOS 7.6, I think it's best to force the Yum 3 backend with the yum module.

Some background that may be useful:

• ansible/ansible#32532 - ansible yum not working · Issue #32532 · ansible/ansible
• https://people.redhat.com/mskinner/rhug/q3.2018/MSP-RHUG-YUM-is-dead-Long-live-YUM.pdf - presentation about Yum 4 upgrade from Red Hat
• https://www.reddit.com/r/ansible/comments/9wl579/yumuse_backend_and_adhoc_commands/ Ansible thread about yum with use_backend option for Yum 3 or 4

On the specific error, your DNF cache may be corrupt, or you might need to configure HTTP proxy setup, etc - Google results for Failed to synchronize cache for repo "rhui-client-config-server-8" may be helpful.

from ansible-role-java.

Taking a look now. This shouldn't be too difficult to implement, as I now have a CentOS 8 test/CI environment.

from ansible-role-java.

Looks like in RHEL 8 available versions are:

• java-1.8.0-openjdk
• java-11-openjdk
• java-latest-openjdk

from ansible-role-java.