Installation guides state Puppet 5 is the minimum version

[ekohl]

We have raised the minimum version a while back. Each branch should be considered because we raised it to 6.15 and later to 7.

[maximiliankolb]

We mention "Puppet" quite a lot throughout the docs, for example in

• guides/common/modules/proc_configuring-repositories-el.adoc
• guides/common/modules/proc_configuring-repositories-deb.adoc
• guides/common/modules/proc_enabling-puppet.adoc
• guides/common/modules/ref_supported-puppet-versions-and-system-requirements.adoc
• guides/common/modules/ref_performing-configuration-management.adoc
• guides/common/modules/con_how-puppet-integrates-with-project.adoc
• guides/doc-Planning_for_Project/topics/Configuration_Management_Support.adoc

Files with obvious version numbers:

$ rg -i "puppet [0-9]"
guides/common/modules/proc_installing-and-configuring-puppet-agent-during-host-registration.adoc
43:* Add a host parameter named `enable-official-puppet7-repo` for the Puppet 7 release repository.

guides/common/modules/proc_installing-and-configuring-puppet-agent-during-host-provisioning.adoc
54:* Add a host parameter named `enable-official-puppet7-repo` for the Puppet 7 release repository.

guides/common/modules/ref_supported-puppet-versions-and-system-requirements.adoc
9:* Puppet 7
13:For more information, see https://puppet.com/docs/puppet/7/system_requirements.html[System Requirements for Puppet 7] in the _Open Source Puppet_ documentation.

• Puppet version for foreman-installer to install Foreman/Katello: https://github.com/theforeman/foreman-installer/blob/develop/spec/puppet_version_spec.rb#L4
• Puppet version for foreman_puppet to configure managed hosts: is it the same?

[ekohl]

Puppet version for foreman-installer to install Foreman/Katello: https://github.com/theforeman/foreman-installer/blob/develop/spec/puppet_version_spec.rb#L4

We also reflect this in the foreman-installer packages themselves. So it shouldn't be possible to install the installer with a too old Puppet version.

Puppet version for foreman_puppet to configure managed hosts: is it the same?

I just answered this yesterday: theforeman/foreman_puppet#371 (comment)

The short summary is that our installer is stricter in what it supports than the other parts.

Though the third part is compatibility in the provisioning of new hosts.

[maximiliankolb]

relates to

theforeman/theforeman.org#2103
theforeman/theforeman.org#2107
theforeman/theforeman.org#2108

since 3.4: you need puppet 6
since 3.7: you need puppet 7

your Puppet modules to configure managed hosts need to be compatible with that version!