Overview

You can manage patches on ECSs, BMSs, or Cloud Container Engine (CCE) instances by scanning and repairing patches.

Constraints and Limitations

Currently, only servers that can access the public network are supported. You can bind an EIP or NAT gateway to perform operations in this function.

Before managing patches, ensure that the regions where the execution machines are deployed and the OSs of the execution machines are supported by the existing patch management feature, and the second-party package, on which the patch management feature is dependent on, is contained in the execution machine, and the package functions are normal. Otherwise, patches may fail to be managed.

Table 1 lists the OSs and versions supported by the patch management feature.
Table 2 lists the environment on which patch management depends.

**Table 1** OSs and versions supported
OS	Product
Huawei Cloud EulerOS	Huawei Cloud EulerOS 1.1 Huawei Cloud EulerOS 2.0
CentOS	CentOS 7.2 CentOS 7.3 CentOS 7.4 CentOS 7.5 CentOS 7.6 CentOS 7.7 CentOS 7.8 CentOS 7.9 CentOS 8.0 CentOS 8.1 CentOS 8.2
EulerOS	EulerOS 2.2 EulerOS 2.5 EulerOS 2.8 EulerOS 2.9 EulerOS 2.10

**Table 2** Dependencies
Type	Item
Python environment	Python (Python 2 or Python 3) DNF software packages (depended by Huawei Cloud EulerOS 2.0, CentOS 8.0 or later, and EulerOS 2.9 or later) Yum software packages (depended by Huawei Cloud EulerOS 1.1, versions earlier than CentOS 8.0 and EulerOS 2.9) lsb-release software package
Software package management tool	RPM