프록시 마이그레이션

1. Introduction

This document provides the tested and validated procedures for migrating both the host operating system and the proxy extension in environments managed by SUSE Multi-Linux Manager, specifically targeting systems deployed with SUSE Multi-Linux Manager Proxy 5.0.

The upgrade scenarios covered include:

Migrating from SUSE Linux Enterprise Micro (SLE Micro) 5.5 to SLE Micro 6.1
Migrating from SUSE Linux Enterprise Server (SLES) 15 SP6 to SLES 15 SP7
Upgrading the SUSE Multi-Linux Manager Proxy Extension from version 5.0 to version 5.1

2. SLE Micro 5.5 to SL Micro 6.1

This section provides the tested procedure to upgrade a SLE Micro 5.5 host deployed with SUSE Multi-Linux Manager 5.0 Proxy to SL Micro 6.1 with SUSE Multi-Linux Manager 5.1 Proxy.

2.1. Prerequisites

SUSE Multi-Linux Manager 5.0 Proxy is installed and running on SLE Micro 5.5.
Proxy system is registered with the SUSE Multi-Linux Manager Server.

2.2. Distribution Upgrade and Proxy Migration

Procedure: Migrate SUSE Multi-Linux Manager 5.0 Proxy to SUSE Multi-Linux Manager 5.1

Verify System and Proxy Version
cat /etc/os-release
mgrpxy --version
Confirm:

Operating System: SLE Micro 5.5

Proxy Component: mgrpxy version 0.1.29 or higher
Check Running Containers
podman ps
Ensure the following containers are running:

proxy-squid

proxy-ssh

proxy-httpd

proxy-tftpd

proxy-salt-broker
Synchronize Proxy Products in SUSE Multi-Linux Manager Server

Use the Web UI to synchronize:

SL-Micro 6.1

SUSE Multi-Linux Manager 5.1 Proxy Extension

Perform Proxy Product Migration

Use the Web UI to migrate from:

SLE Micro 5.5 + SUSE Multi-Linux Manager Proxy 5.0 Extension to

SL Micro 6.1 + SUSE Multi-Linux Manager Proxy 5.1 Extension

Do not select optional channels when prompted, unless you have confirmed they are required.

Monitor the Migration Action
Reboot the System
reboot
Post-Reboot Validation
cat /etc/os-release
mgrpxy --version
Expected:

OS: SL Micro 6.1

Updated Proxy version
Enable Root SSH Access (if required). SL Micro 6.1 disables root login via SSH by default. Edit /etc/ssh/sshd_config.d/sshd.conf:

+
PermitRootLogin yes
+

And restart the service:

+
systemctl restart sshd
+

For more information, see Remote root login on SL Micro.
Install the packages with:
transactional-update pkg install suse-multi-linux-manager-5.1-x86_64-proxy*
재부팅
Upgrade proxy containers:
mgrpxy upgrade podman
Validate Proxy Containers
podman ps
All expected proxy containers should be up and running.
=== Migration Complete

The proxy host system is now running SL Micro 6.1 with updated SUSE Multi-Linux Manager 5.1 Proxy packages and synchronized product channels.

== SUSE Linux Enterprise Server 15 SP6 to 15 SP7

This section provides the tested procedure to upgrade a SUSE Linux Enterprise Server SP7 host deployed with SUSE Multi-Linux Manager 5.0 Proxy to SUSE Linux Enterprise Server SP7 with SUSE Multi-Linux Manager 5.1 Proxy.

=== Prerequisites

SUSE Multi-Linux Manager Proxy 5.0 is installed and running on SUSE Linux Enterprise Server 15 SP6.

Proxy system is registered with the SUSE Multi-Linux Manager Server.

=== Distribution Upgrade and Proxy Migration

Verify Operating System and Proxy Version

cat /etc/os-release
mgrpxy --version

Expected Output:

NAME="SLES"
VERSION="15-SP6"
VERSION_ID="15.6"
PRETTY_NAME="SUSE Linux Enterprise Server 15 SP6"
ID="sles"
ID_LIKE="suse"

and

mgrpxy version 0.1.29 (HEAD 053c629)

List Running Proxy Containers
```
podman ps
```
Verify the following containers are running:
- proxy-salt-broker
- proxy-httpd
- proxy-squid
- proxy-tftpd
- proxy-ssh
- Supporting infrastructure container(s)
Synchronize Products on the SUSE Multi-Linux Manager Server

Using the Web UI, synchronize the following:
- SUSE Linux Enterprise Server 15 SP6
- SUSE Multi-Linux Manager Proxy Extension 5.0
Trigger the Product Migration via Web UI

Navigate to the proxy system in the SUSE Multi-Linux Manager Web UI and select:
- Migrate from: SLES 15 SP6 + Manager Proxy Extension 5.0
- To: SLES 15 SP7 + Manager Proxy Extension (updated channels)
  
  When prompted, do not select optional channels unless you have confirmed they are required.
Monitor the Migration Job

Check job status under the system action history in the Web UI.
Reboot the Proxy System
```
reboot
```
Validate Post-Reboot Status
```
cat /etc/os-release
mgrpxy --version
```
Expected:
- OS: SUSE Linux Enterprise Server 15 SP7
- Updated mgrpxy version (e.g., 5.1.9)
Update proxy containers:
```
mgrpxy upgrade podman
```
Confirm Proxy Containers Are Operational
```
podman ps
```
Ensure all relevant proxy containers are up:
- proxy-salt-broker
- proxy-httpd
- proxy-squid
- proxy-tftpd
- proxy-ssh

2.3. Migration Complete

The proxy host system is now running SUSE Linux Enterprise Server 15 SP7 with updated SUSE Multi-Linux Manager 5.1 Proxy packages and synchronized product channels.