Release notes for Uyuni Proxy

WARNING: This release updates the base OS from openSUSE Leap 15.4 to openSUSE Leap 15.5 and there are special steps required. You need at least Uyuni 2023.04 already installed to perform the upgrade, and you need to follow the (major upgrade procedure for the Proxy. More details are also available at the "Update from previous versions of Uyuni Proxy" section below.

WARNING: This release updates the Salt version for Master and Minions to a next major release. Make sure you update the Uyuni Server before updating the proxies, as backward compatibility of Minions against an older Master is not guaranteed

The base operating system has been upgraded to openSUSE Leap 15.5.

Salt has been upgraded to upstream version 3006.0, plus a number of patches, backports, and enhancements by SUSE, for the Uyuni Server, Proxy, and Client Tools.

Salt 3006.0 is the first LTS release of Salt based on the newly defined release strategy. The purpose of the LTS release is to provide users with a stable version of Salt for a longer period.

WARNING: This release updates the Salt version for Master and Minions. Make sure you update the Uyuni Server before updating the clients, as stated here https://docs.saltproject.io/salt/install-guide/en/latest/topics/upgrade.html

For more details about this release, see the Salt 3006.0 upstream release notes.

Upstream Salt 3000 went End of life on August 31, 2021. However, because it was part of the Advanced Systems Management Module of SUSE Linux Enterprise 12 and there was no bundle available for SUSE Manager 4.1, it was still supported.

Salt 3000 will no longer be supported in the context of Uyuni now that both SUSE Manager 4.1 and the Advanced Systems Management Module of SUSE Linux Enterprise 12 are End of Life.

Users are required to migrate existing Salt 3000 minions for SUSE Linux Enterprise Server 12, Red Hat Enterprise Linux 7, CentOS 7, Oracle Linux 7, and Amazon Linux 2 to the Salt Bundle before creating any bug reports.

For more information about performing Salt 3000 to Salt Bundle migrations, please consult the Salt Bundle section in the Client Configuration Guide.

With Uyuni 2023.01, we are removing versions older than 2021.12 from the release notes, to make the document smaller and easier to review.

Release notes for older versions, up to 4.0.0 can still be found at the website.

Deploying Proxy and Retail Branch Servers as containers is now also possible using a Helm chart.

For more information check this README file. The information will be part of the Uyuni official documentation in a future release.

WARNING: The container images configuration has a new format and it is now packaged as tar.gz file. All previously deployed container Proxies and Retail Branch Servers will need to get their configuration regenerated and deployed again before pulling these images.

WARNING: This release updates the base OS from openSUSE Leap 15.3 to openSUSE Leap 15.4 and there are special steps required. You need at least Uyuni 2021.06 already installed to perform the upgrade, and you need to follow the (major upgrade procedure for the Proxy. More details are also available at the "Update from previous versions of Uyuni Proxy" section below.

WARNING: This release updates the Salt version for Master and Minions to a next major release. Make sure you update the Uyuni Server before updating the proxies, as backward compatibility of minions against an older master is not guaranteed

WARNING: With Uyuni 2021.12, we announced the future deprecation of the Traditional client tools. Uyuni 2022.06 is the last release that supports them. Starting with Uyuni 2022.08, the traditional client tools will be deprecated as we will start removing the code at some point after the summer. Do not use the traditional stack for any new deployments of clients or proxies, and start migrating your traditional clients to Salt.

The base system has been upgraded to openSUSE Leap 15.4.

Salt has been upgraded to upstream version 3004, plus a number of patches, backports and enhancements by SUSE, for the Uyuni Manager Server, Proxy, and Client Tools.

We intend to regularly upgrade Salt to more recent versions.

For more details about changes in your manually-created Salt states, see the Salt 3004 upstream release notes.

Salt Bundle 3004 will be available for all supported clients.

The non-bundle version of Salt requires Python 3 installed by default, so it will not be available for:

HTTP Strict Transport Security (HSTS) is a policy mechanism that helps to protect websites against man-in-the-middle attacks such as protocol downgrade attacks and cookie hijacking.

Uyuni 2022.04 allows enabling HSTS. Which means each request will need to be HTTPS while plain HTTP requests will be rejected.

To enable it for the Uyuni Proxy:

IMPORTANT: If you enable HSTS while using the default SSL certificate generated by Uyuni, or a self-signed certificate, some browsers will refuse to connect using HTTPS unless the CA used to sign such certificates is trusted by the browser. If you are using the SSL certificate generated by Uyuni, you can trust it at the servers by using the file located at `http://<UYUNI-PROXY-HOSTNAME>/pub/RHN-ORG-TRUSTED-SSL-CERT

We highly encourage you to migrate your workload to a newer version of each distribution, or to an alternative distribution that is still supported, so you can continue managing your infrastructure with Uyuni.

Please note that we will not break things on purpose for these unsupported products, and there is a possibility that they could still continue to work. But if things break, there will not be any support provided, not even on a best-effort basis, unless someone from the community can step in.

Uyuni 2022.02 updates Prometheus from version 2.27.1 to 2.32.1.

The new version contains some breaking changes that need to be addressed after the Uyuni Server is updated.

Breaking changes:

Important changes:

Check the upstream changelog for more details on what has changed.

It is now possible to change the proxy used by an Uyuni client using the WebUI.

This can be done from the Connection tab at the Details tab for any Salt client, using the new link Change to change the connection type.

Using System Set Manager is supported as well, and can be done from the Misc tab, and then Proxy tab.

NOTE: Changing the connection for a Proxy to move it, is not supported at this moment. The Connectiontab will not show the Change link for proxies.

Salt Bundle is a single package called venv-salt-minion containing the Salt Minion, Python and all Python modules. It is exactly the same version and codebase for the current salt-minion RPM package.

The Salt Bundle can be used on systems that already run another Salt Minion, that do not meet Salt’s requirements or already provide a newer Salt version that is used instead of the version provided by Uyuni.

Starting with Uyuni 2021.12, Uyuni is able to bootstrap systems with Salt Bundle for all the supported operating systems.

On bootstrapping new proxies the Salt Bundle package will be used instead of salt-minion, if the package venv-salt-minion is present in the bootstrap repo.

Proxies already registered will not be changed, but can be switched to Salt Bundle with applying the state util.mgr_switch_to_venv_minion to them.

CentOS 8 will be End of Life on December 31st, 2021. Uyuni support for this product will end as well.

Please refer to support section for more information.

With Uyuni 2021.12, we announced the future deprecation of the Traditional client tools.

Uyuni 2022.06 is the last release that supports them.

Starting with Uyuni 2022.08, the traditional client tools will be deprecated as we will start removing the code to support them at some point after the summer.

Do not use traditional for any new deployments of clients or proxies, and start migrating your traditional clients to Salt.