Notes and Constraints

If you apply CodeArts Deploy in specific industries (such as education, healthcare, and banking), you must comply with the user data protection laws and content management laws stipulated by related countries/regions.
Do not use CodeArts Deploy to crawl, process, or upload data on external video or audio webpages.
Do not use CodeArts Deploy to perform operations other than source code compilation and building.
Do not use commands such as sleep, usleep, read, timeout, yes, dd and while loop to occupy server processes for a long time (more than 10 minutes).

Item	Description
Cluster name	Use digits, letters, hyphens (-), underscores (_), and periods (.). The value can contain 3 to 128 characters.
Host name	Use digits, letters, hyphens (-), underscores (_), and periods (.). The value can contain 3 to 128 characters.
Application name	Use digits, letters, hyphens (-), and underscores (_). The value can contain 3 to 128 characters.
Action name	Do not start or end with a space. Use letters, digits, spaces, and these special characters:-_,;:./(). The value can contain 1 to 128 characters.

This section describes the constraints on CodeArts Deploy.

Basic constraints

**Table 1** Basic constraints
Category	Item	Constraint
Application management	Maximum number of applications in a single project	2,000
	Maximum number of days for which deployment records can be viewed under an application	92
	Maximum time for deploying an application (minutes)	30
Basic resource management	Maximum number of host clusters in a project	1,000
	Maximum number of hosts in a host cluster	200
	Maximum number of hosts whose connectivity is verified in batches	200
Environment management	Maximum number of environments in a single application	100
	Maximum number of hosts in a single environment	200
	Maximum number of hosts whose connectivity is verified in batches	200

Only OSs listed in the table below are supported.

**Table 2** OSs supported
OS	Version
CentOS	6.3, 6.5, 6.8, 6.9, 7.0, 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, 8.0, 8.1, 8.2, and Stream 9 NOTE: Docker 18.09.0 is not compatible with CentOS 8.
Debian	9.0.0, 8.8.0, 8.2.0, and 10.0.0
EulerOS	2.0, 2.2, 2.3, and 2.5
Huawei Cloud EulerOS	2.0 NOTE: Nginx 1.12.2 and Docker 18.09.0 are incompatible with Huawei Cloud EulerOS 2.0.
Ubuntu	14.04, 16.04, 18.04, 20.04, 22.04 NOTE: Ubuntu 22.04 supports only Docker 19.03 and later versions. It is incompatible with Nginx 1.12.2 and does not support all PHP versions. Ubuntu 20.04 is incompatible with Nginx 1.12.2 and PHP 5.6.38.
Windows	2012 R2, 2016, 2019, Win 7, and Win 10
KylinOS	V10 SP1 NOTE: Nginx 1.12.2 and PHP-5.6.38 are incompatible with KylinOS.
UnionTechOS	Server 20 (1050e)
OpenEuler	20.03, 22.03 NOTE: JDK11 and PHP-5.6.38 are incompatible with OpenEuler ×86. All versions of Nginx, Python, JDK, and PHP are incompatible with OpenEuler ARM.
AlmaLinux	AlmaLinux 8, AlmaLinux 9

Only cluster versions listed in the table below are supported.

**Table 3** Cluster versions
Type	Version
CCE cluster	1.17–1.25
Self-managed K8S cluster	Comply with constraints and limitations in the Kubernetes community

To use CodeArts Deploy, subscribe to CodeArts first. CodeArts Deploy cannot be purchased separately.
CodeArts Deploy is available for free.
However, the resources (such as ECSs, EIPs, and traffic) used by the deployed applications and the services on which the applications depend are charged by the corresponding services.
If your account is in arrears, you can still use CodeArts Deploy for free. However, if the resources (such as ECSs, EIPs, and traffic) in CodeArts Deploy are unavailable when the account is in arrears, the corresponding application deployment may fail.