systemvm: Update patch systemvm support matrix (#382)
* systemvm: Update patch systemvm support matrix
* add note for VR memory upgrade to 512 MiB
* Add notes for VR live-patch
* Update source/upgrading/upgrade/_sysvm_restart.rst
Co-authored-by: Pearl Dsilva <pearl1594@gmail.com>
---------
Co-authored-by: Pearl Dsilva <pearl1594@gmail.com>
diff --git a/source/upgrading/upgrade/_sysvm_restart.rst b/source/upgrading/upgrade/_sysvm_restart.rst
index 30f3228..77c4045 100644
--- a/source/upgrading/upgrade/_sysvm_restart.rst
+++ b/source/upgrading/upgrade/_sysvm_restart.rst
@@ -36,18 +36,25 @@
in the System VMs.
.. note::
+ The System VM template has been upgrade to Debian 12.x in Apache CloudStack 4.20.0.0.
+ Due to it, the memory size of default system offerings has been changed to 512 MiB.
+ If you use custom system offerings, please check the memory size of the offerings.
+ If memory size is small (for example 256 MiB), the System VMs and virtual routers might have the "kernel panic" issue on boot.
+
+.. note::
The following services will be restarted once a system VM is live patched:
- +---------------------+-------------------------------+
- | **System VM** | **Services** |
- +---------------------+-------------------------------+
- | SSVM | cloud, apache2, portmap |
- +---------------------+-------------------------------+
- | CPVM | cloud |
- +---------------------+-------------------------------+
- | VRs | haproxy, apache2, dnsmasq |
- +---------------------+-------------------------------+
+ +---------------------+-------------------------------+---------------------------------------------------+
+ | **System VM** | **Services** | **Note** |
+ +---------------------+-------------------------------+---------------------------------------------------+
+ | SSVM | cloud, apache2, portmap | |
+ +---------------------+-------------------------------+---------------------------------------------------+
+ | CPVM | cloud | |
+ +---------------------+-------------------------------+---------------------------------------------------+
+ | VRs | haproxy, apache2, dnsmasq | Please set setting `minreq.sysvmtemplate.version` |
+ | | | to proper value before live-patching |
+ +---------------------+-------------------------------+---------------------------------------------------+
With respect to VRs, a Network restart without cleanup is initiated to during live patching to ensure all rules
are re-applied.
@@ -64,12 +71,12 @@
+---------------------+-------------------------+--------------------------------+------------------------------------------+
| **ACS Version** | **Upgrade Version** | **Live Patching Support** | **Reason / Comment** |
+---------------------+-------------------------+--------------------------------+------------------------------------------+
- | <=4.13 | 4.17+ | No | Update in the openJDK version |
+ | <=4.15 | 4.20+ | No | Debian 10 (buster) is EOL on 2024-06-30 |
+---------------------+-------------------------+--------------------------------+------------------------------------------+
- | 4.14 | 4.17+ |Yes | May notice some issue with remove access |
- | | | | VPN due to older version of Strongswan |
+ | >=4.16 | 4.19 | Yes | N/A |
+---------------------+-------------------------+--------------------------------+------------------------------------------+
- | >=4.15 | 4.17+ |Yes | N/A |
+ | >=4.16 | 4.20 | Yes | May notice some issues due to Debian |
+ | | | | upgrade from 11(bullseye) to 12(bookworm)|
+---------------------+-------------------------+--------------------------------+------------------------------------------+
In addition to the support for live patching, users still have the facility to follow the legacy workflow
